Java programming outsourcing india jobs

I'm in need of an expert in Whiskeysockets/Baileys Library specifically skilled in troubleshooting. Key Task: - Investigate and fix issues You have triggered an unhandledRejection, you may have forgotten to catch a Promise rejection: TypeError: Cannot read properties of undefined (reading 'user') Skills and Experience: - Proven experience in programming using the Whiskeysockets/Baileys Library - Excellent problem-solving abilities especially in running concurrent sessions - Expert in troubleshooting for Whiskeysockets/Baileys Library

I'm currently seeking a mid-level Java developer who is proficient with IntelliJ IDEA to join our team on a project basis. Your primary responsibility will be to develop high-quality software that is aligned with user needs and business goals. Key Responsibilities: - Develop, test, and maintain high-quality Java applications - Collaborate with cross-functional teams to define, design, and ship new features - Ensure the best possible performance, quality, and responsiveness of the applications - Identify and correct bottlenecks and fix bugs - Help maintain code quality, organization, and automatization Ideal Candidate: - 3-5 years of proven experience as a Java developer - Proficiency with IntelliJ IDEA - Solid understanding of object-oriented programming...

I'm seeking a proficient developer with experience in Raspberry Pi Pico, USB ethernet programming, NTP (Network Time Protocol) clients, and web server development. Integrate existing open source libraries to achieve the following objective. - Project is completely hosted on a Raspberry Pi Pico board using Arduino IDE, FreeRTOS, and libraries. - Creates an Ethernet endpoint when USB is connected to a Fedora Linux host PC. - NTP client enabled to obtain accurate Global time synchronization. - Web server with a single page offered which display a "Hello World" page with current date and time, and a drop down box where the host can set the time zone. This RPI Pico web page is accessed from FireFox on the Fedora Linux host.

I'm seeking a skilled developer to assist in integrating a custom application with Constant Contact. Key Requirements: - Skilled in Pnp programming language - Experience with system integration - Able to work with Constant Contact APIs Your proposal should demonstrate your experience in integrating systems, particularly with Constant Contact. Prior work and references showcasing this expertise would be highly beneficial.

I'm looking for a skilled developer to create a JavaScript Lab Geometric application that can calculate and draw different types of triangles. Key Tasks: - Develop a JavaScript application capable of calculating the area and perimeter of triangles. - Implement a drawing feature that allows users to visualize the triangles they've entered. The ideal candidate should have: - Proficiency in JavaScript and its associated libraries for drawing and calculation. - A strong understanding of geometric calculations and shapes. - An eye for design to ensure the application is user-friendly and engaging.

I'm in need of a seasoned Java 8 programmer proficient with web application development, particularly using the Spring framework. Your primary responsibility will be to deploy an existing web application project of ours on a Virtual Private Server (VPS) with GoDaddy. Scope of tasks: 1. Deploy Java Web Application: - Handle complete setup on GoDaddy VPS server environment. 2. Spring Framework proficient: - Our application is built on the Spring framework. Deep understanding of this technology is essential for successful deployment. Ideal skills and experience for this job: - Solid background in Java 8 and Spring web application development. - Extensive experience in deploying Java projects on GoDaddy VPS servers. - Problem-solving skills with an...

I'm in need of an experienced team in India to manufacture smart home and industrial automation devices. The ideal candidate should have the following skills and experience: - Proficient in manufacturing smart home devices with Energy monitoring, GPS tracking, and UHF AUTO ATTENDANCE features - Expertise in industrial automation device manufacturing - Experience in real-time monitoring, integration with existing systems, and data analytics for industrial automation devices Please let me know your relevant experience and your proposed approach for this project.

I'm looking for an experienced .NET developer to assist with a project. This project requires someone who has a strong background in .NET technology, particularly in C# programming, ASP.NET development, and SQL database management. Ideal candidates should have experience in developing web applications, creating software solutions, and improving existing systems. The key functionalities to be implemented by the .NET developer in this project include user authentication, data encryption, and payment integration. If you're a .NET developer with a solid understanding of the above technologies and functionalities, please reach out to discuss the project further.

Currently, I'm looking for a highly proficient and experienced developer to create a simple smart contract for a game on the Ethereum blockchain. The primary functionality that this contract should include is a robust player's betting system. The following criteria should be met: - Advanced knowledge and understanding of Ethereum and its related programming languages (Solidity, Vyper). - Proven experience in designing and developing smart contracts, ideally relating to gaming or betting systems. - Ability to integrate the smart contract with the game to ensure accuracy and fairness. - Implement a consequence system where players experiencing a failed bet will suffer loss of game assets. Your bid should highlight your experience in the above areas, and examples of past p...

As an eager recruiter of beginner and junior developers, I'm offering a chance to hone your skills and add real-world experience to your portfolio. ...your skills and add real-world experience to your portfolio. Key Deliverables: * Full-Stack Development * Frontend and Backend Developments * Mobile Development * Artificial Intelligence (AI) * Machine Learning (ML) Expected Skills: * Proficiency in Python, JavaScript, C++ * Versatility in tackling diverse IT tasks Experience: * Entry level/ Junior but with a strong grasp of the mentioned programming languages and IT sectors This opportunity is particularly aimed at those looking to secure jobs swiftly. While the primary focus of the project has been left open, it'll be a mix of various IT tasks. A challenge-loving min...

I am seeking a proficient Java developer who excels in using Eclipse, to develop a Library Record System. The scope of the task includes: - Application development from scratch. - Debugging during the development phase to ensure top-notch functionality. - Providing software maintenance post-development. Key Features: - A simple and minimalist interface for user-friendly navigation. - Book borrowing management capability to check the status and track all borrowings. - User account management which enables personalized access for users. - Inventory tracking for systematic management and easy accessibility of books in the library. Ideal Skills and Experience: - Strong experience in Java development and Eclipse toolset. - An eye for creating user-centric, minimalist interfaces...

I urgently need a Lithuanian TELIA Prepaid SIM card to be shipped to India. (I can provide you with all the documents required for the SIM purchase) I have an immediate requirement, so quick delivery is paramount. The project is pretty straightforward, but it does need someone who can ensure the SIM card reaches me in India as soon as possible. Ideal skills and experience for this job: - Proven experience in international shipping, particularly with delicate items like SIM cards - Familiarity with purchasing prepaid SIM cards in Lithuania - Excellent communication skills to keep me updated on the purchase and delivery process Please bear in mind the urgency of this project when bidding. I'm looking to get the SIM card delivered as soon as you can possibly arrange it.

Our junior Flutter developer has written a Flutter application, it is almost completed, we need an experienced developer to fix a few issues. Peer programming means sitting on a call (Zoom or AnyDesk) and going over the code and fixing the issues. We will pay hourly for up to 5 hours.

I'm looking for freelancer opportunities within the finance industry. Opportunities that allow me to leverage and grow my skills over time are preferred. The work could involve either graphic design, content writing, or programming. The ideal candidate should: - Be proficient in graphic design, content writing, and programming. - Have good understanding of finance industry trends and relevant knowledge. - Be able to handle different freelance projects concurrently. - Have high adaptability under different requirements. This is a chance to expand your portfolio and broaden your skill set in the finance industry. Have your bid ready if you fit this description. Look forward to potentially working with you.

I am seeking a partner who can guide me through the fundraising process for my travel technology startup, based in India. Our company aims to provide comprehensive technological resources to travel agents, including: - Booking management system - Client management system - Hotel booking capabilities - Real-time updates for all necessary information We aspire to create a platform that offers a simplified management system, ensuring a hassle-free experience for travel agents and the Traveller. I need someone who has experience in securing investments for similar projects. An in-depth understanding of the tech startup environment in India and solid connections with potential investors would be highly advantageous. The ideal fit would be someone who not only can help in raisin...

I'm looking for a skilled Python developer to build a custom forum platform with a rest API integration. Key Features: - User registration and login - Discussion threads - In-forum search function - PayPal functionality Design Preferences: - The user interface should be customizable with various themes. Experience and Skills: - Proven python programming skills - Experience in creating custom forum platforms - Familiarity with rest APIs and PayPal integration - Knowledge in design and UX for optimum customization capabilities This project requires a systematic and detail-oriented approach. I expect clean and efficient codes to ensure the platform's smooth operation.

I'm seeking a proficient ABAP developer with extensive experience in resolving issues related to the ADR6 table in SAP. The primary issue I am encountering is an ASSERT dump when attempting to update the table. Your ...overall functionality of the table. Key Responsibilities: - Identify the root cause of the ASSERT dump when updating the ADR6 table. - Resolve the issue to ensure successful and error-free updates. - Optimize the ADR6 table to improve system performance and ensure accurate communication mail ids. Ideal Candidate: - Proven experience working with the SAP ADR6 table. - Strong understanding of ABAP programming language. - Ability to troubleshoot and resolve complex technical issues in SAP. - Prior experience with ASSERT dump errors in the ADR6 table would be highl...

...take some of our clients to court. Canadian court system has moved all their small claims to be online and it's become a little more complicated. We don't understand the forms. We don't understand their terminology. They have a +1800 number we can call, but we still are not able to understand it and we need someone that can help us file our claims. I'm in need of an experienced paralegal from India who can provide a variety of services, including legal research, document drafting, case management, and the filing of a claim. Key responsibilities: - Conducting thorough legal research to support my case - Drafting necessary legal documents efficiently and accurately - Managing the overall progress and handling of the case - Filing the claim in a timely manner ...

I need a pong game made with java, It needs to have some extra features such as a goal, sometimes when a player 1 scores a goal its dash to increase, variable ball speeds,

Project Description: We are looking for a skilled Java developer with experience in Apache Flink (version 1.19) to create a data processing job that reads from parquet files located on a Network File System (NFS) and sends selected data to a Kafka topic. Core Responsibilities: - Develop a Flink job using Java that can read parquet files from NFS. - Implement functionality to allow the selection of specific columns from the parquet files to be processed. - Ensure the selected data is published to a specified Kafka topic efficiently. - Manage dependencies and libraries required to execute the job without compatibility issues.

It seems people do not read the requirements and conditions and once I start the trial, people are failing to perform. Also, too many bids from countries I do not desire; Pakistan, Bangladesh, India, etc. I need a freelancer from LATIN AMERICA only. I need close to EST time!! Furthermore, I need a BILINGUAL freelancer!! So READ before biding. I need a fully bilingual professional (I will interview in English via video) to do some tasks for my agency, such as: PR Outreach Social media Content editing or creating CRM management Email marketing Email scraping Researching Organizing data in spreadsheets Copywriting Basic Wordpress (change text, add a button, upload a file, etc) And others related to the position You must be a FAST learner, attentive to details, curious, with gr...

Please Sign Up or Login to see details.

I'm looking to develop a Visitor Management System app for Android. - The system primarily needs to facilitate visitor registration and check-in/check-out tracking. It should suit both office and Apartment. There will be one web admin interface where the ad...system primarily needs to facilitate visitor registration and check-in/check-out tracking. It should suit both office and Apartment. There will be one web admin interface where the admin can accept the registration of Office and end users. Activate or deactivate users or office or apartment. - No existing integration is required. I'm seeking a developer with the following skills: - Proficient in Java, Node JS, PHP and React Native - Proven experience with Android app development - Previous work on Visitor Managemen...

Hey I'm looking a creative UI UX designer to develop a website focusing on our FinTech startup in remittance/cross-border payments. These are some of my inspirations , , These are some of my inspirations , , , , , , , Please reply only if you think you can do a job as good as them, if not better. You will be paid only if my team likes it. Freelancers from India are preferable. [Removed by Freelancer.com Admin]. I have mentioned the preferred colour theme and also our logo in attachments.

I'm in need of an expert with skills in HTML and JavaScript to optimize a script for my personal website. The site is dedicated to a 'Programming Languages' mobile assignment and currently, it requires an upgrade. Requirements: - Profound knowledge of HTML and JavaScript and php - Must be capable of form validation - Understand how to implement interactive animations - Experience in data visualization is a plus Your role in this project will be to ensure the site runs flawlessly while maintaining clean and efficient scripting. I want to appeal to users with a seamless navigational experience and this is where your expertise comes in. Please bid if you are able to bring these requirements to life and let's give this website the upgrade it needs.

I am looking for a proficient python developer to help in enhancing a Telegram PHP bot. With your skills and experience in bot programming, I am confident we can have this bot become even better. As part of this project, you need to: 1. Customize Bot Commands: - Add new commands as per the specific requirements I will share. 2. Change Chatbot Responses: - Modify existing responses in a way that improves the user engagement. - Delete some responses that are no longer relevant. 3. Integrate Third-Party APIs: - This integration will help the bot offer more utilities and functionalities. The ideal candidate for this project should have extensive knowledge in Telegram bot development, PHP, Python, and experience in third-party API integration. I look forward to your ...

I'm in need of a Python expert, specifically one with proficiency in Data Analysis. The task primarily involves working with simple data sets. While the source of data was not specified, the expert is expected to exhibit substantial versatility. Ideal Skills: - Strong Python programming - Proven track-record in data analysis - Experience handling various data sources - Problem-solving abilities Note: Freelancers with a robust understanding of accessing and manipulating different data sources have an edge. Show me what you've got!

I need a highly skilled Shogun developer to integrate a new payment system functionality into our existing platform. Even though no specific programming language was highlighted, a deep understanding of Python, Java and C++ would be advantageous to navigate our existing structure. The end goal is to implement a secure and user-friendly payment environment. Features should include: - Multi-currency support - Integration with popular payment gateways - Fraud detection mechanisms - Easy to use interface for both backend and frontend users Candidates should have prior experience with payment system integration and a keen eye for detail in terms of security and efficiency, as well as a proven track record of successful project completions.

I am looking for an immediate Shopify expert who can help me fix custom dropdown menus on my website. Immediate meaning now, ...should be able to select 21 different options/styles, which you are unable to pulldown and select. - I will pay $50 to resolve this right away. Time sensitive as I posted a Mother's Day special and people are unable to select these options. Ideal Skills: - Extensive experience with Shopify development. - Proficiency in JavaScript, specifically in customizing dropdown menus. - Familiarity with Java and its integration within Shopify. The successful candidate will need to diagnose the issue and implement a solution that ensures smooth functionality of the dropdown menus across all pages of the website. Please provide examples of similar projects you ...

I'm searching for business partners in the USA, EU, and India with experience marketing solar energy and energy storage systems (ESS). Your focus will be networking events, as well as traditional sales and marketing methods. You should have prior experience targeting a diverse audience, including residential consumers, commercial businesses, and government organizations. Knowledge and passion for renewable energy is a must. You are strategic yet down to earth. Skills and Experience: - Proven track record in marketing renewable energy solutions - Extensive connections and networking skills - Familiarity with both traditional and innovative marketing strategies - Ability to engage with diverse target segments ranging from residential consumers to government organizations - Stron...

I have a project that requires an experienced developer to assist in the building of an open-source B2B e-commerce platform. Given the open-ended nature of the project, any developer considering this job should ideally bring a wide array of programming skills to the table, including but not limited to Python, Java, and JavaScript. Key Functionalities Needed: - User authentication system - Product listing and search abilities - Shopping cart functionality The platform also requires different integrations to optimize the user experience: - Payment gateway integration - Integration with various shipping carriers - CRM integration I want a professional with previous experience in e-commerce platforms and a deep understanding of B2B systems. Continued collaboration is a potenti...

...related to hardware interface programming specifically for a Camera SDK technexion. I require assistance with: 1. Debugging Current Code: Thorough inspection of our current system to identify and rectify any existing issues in the code. 2. New Feature Development: Bringing creativity and C++ expertise to the table to develop fresh, efficient features for hardware interface programming. 3. Performance Boost: Optimizing the system to raise overall performance, response times and operational efficiency. Your ability to understand the complex layers of an embedded system is very important. You'll be interfacing with a Camera SDK technexion, so I expect you to showcase your experience in such or similar undertakings. Relevant experience in real-time programming, ...

...integrate high-quality graphics, animations, and sound effects that enhance the gaming experience. Optimize performance for various mobile devices and ensure smooth gameplay. Requirements: Proven experience in game development, with a portfolio showcasing previous work on mobile games. Proficiency in game development frameworks such as Unity or Unreal Engine. Strong knowledge of programming languages such as C#, Java, or C++. Familiarity with multiplayer networking protocols and implementation. Ability to work independently and collaborate effectively with a team. Excellent communication skills and attention to detail. Bonus Skills: Experience with card game development or gambling games. Knowledge of backend server development for handling multiplayer game sessions. Abi...

...has to include the SCTE tags for ad insertion. Key Requirements: - Convert live video with SCTE 35 markers from UDP to HLS - Ensure the SCTE markers are maintained in the HLS stream for ad insertion The HLS stream will be delivered to both web browsers and Smart TVs. As for the programming language or framework for the HLS conversion, I'm open to suggestions. You can use any language or framework that you're comfortable with. Ideal Skills: - Experience with video streaming technologies - Proficiency in programming languages like Python, JavaScript, or Ruby - Familiarity with SCTE 35 ad insertion - Ability to work with UDP and HLS protocols This project is time-sensitive, so I'm looking for someone who can deliver high-quality work within a reasonable t...

I'm looking for a skilled journalist who can write and publish an article in the Times of India / ET/ DNA/ Hindutan times/ ANI etc (reputed online paper). The focus of the article should be on the API & Chemical industry. Requirements: - Prior experience in journalism, with a track record of published work. - Familiarity with writing about complex topics, such as the API & Chemical industry. - The ability to engage readers and communicate effectively. - A good understanding of the Times of India's target audience and editorial style. Please include past work in your proposal. This should demonstrate your ability to write engaging, informative articles on technical subjects.

It seems people do not read the requirements and conditions and once I start the trial, people are failing to perform. Also, too many bids from countries I do not desire; Pakistan, Bangladesh, India, etc. I need a freelancer from LATIN AMERICA only. I need close to EST time!! Furthermore, I need a BILINGUAL freelancer!! So READ before biding. I need a fully bilingual professional (I will interview in English via video) to do some tasks for my agency, such as: PR Outreach Social media Content editing or creating CRM management Email marketing Email scraping Researching Organizing data in spreadsheets Copywriting Basic Wordpress (change text, add a button, upload a file, etc) And others related to the position You must be a FAST learner, attentive to details, curious, with gr...

I'm in need of a professional developer to help create a holiday let booking system. This project requires exceptional skill in programming, along with knowledge in online payment processing and calendar integration. Key features to include are: - calendar: A monthly view is needed that clearly shows the bookings we have of different properties at a glance. - Payment processing: invoicing home owners - Property Details: System should be able to display property details including photos, descriptions, prices etc. - Job Scheduling: The system should incorporate some form of job scheduling for maintenance or cleaning purposes. Proven experience in booking system development and knowledge of the holiday let industry would be advantageous for this role. Looking forward to a re...

For this project, I'm seeking a versatile freelancer with a background in both physics and game development to assist with my PC and console game. It will be a simulation game where physics play a crucial role. Your responsibilities will include: - Designing the physics model for the ball - Helping with implementation if needed - trajectory calc...physics play a crucial role. Your responsibilities will include: - Designing the physics model for the ball - Helping with implementation if needed - trajectory calculations for the ball. The ideal freelancer for this job will have an understanding of physics to ensure the simulations are accurate and can be realistically integrated into a game environment. Experience with game design and programming for both PC and console platfor...

...Support: The PBX system should be configured to enhance our customer support services. This might include call routing, IVR customization, and integration with our existing communication channels. Ideal Skills and Experience: - Proficiency in Vital PBX Installation: The freelancer should have experience in installing and setting up Vital PBX on various server environments. - PBX Programming: Strong background in programming PBX systems to meet specific organizational needs is crucial. - Customer Support Focus: Understanding of customer support processes and how the PBX system can enhance these services is highly beneficial. - Communication Integration: Previous experience in integrating PBX systems with other communication channels is a plus, even though the user skipped ...

I need a Java expert who can do this work , Requirements details in You will submit: 1)Code zip file 2)Report 3)Write details code comments & clean code 4) Screenshoot & output video you must need to use Java programming language for this work Remember: you can't do anything outside this attached requirements . Must be complete all above requirements.

I need a skilled web developer to create an E-commerce website for my business. The site should have intuitive and easy-to-use features, with a focus on a seamless shopping experience. Key Requirements: - Product Catalog: The website should ...should be capable of handling multiple products, applying discounts, and a straightforward checkout process. Additional Information: - Although the question wasn't answered, ideally the website should be scalable to accommodate a variety of product categories. Skills and Experience: - Proven track record of developing E-commerce websites with similar functionalities. - Proficiency in relevant programming languages and platforms for E-commerce development. - Strong understanding of user experience and design principles for online shop...

I'm in search of a skilled social media marketer to help me with my campaign that mainly focuses on Facebook and Instagram. My primary goal is to engage with my audience and promote my brand effectively through various content types such as videos, images, and written posts. I am a doctor in India, I wish to create an educational Instagram page. The purpose of this page is build an organic audience to which I can promote my products in future. Other purpose of this page is to educate my patients about common gynaecological problems and generate leads, that is patients willing to consult me online. Key Responsibilities: - Create engaging content for Facebook and Instagram - Develop and execute social media campaigns - Monitor, analyze and report on campaign performance - Inter...

I require proficient help for an image processing project. The main objective is to detect conditions like diabetic retinopathy and cataracts in images. Development needs: * Recognise the mentioned conditions using Python, MATLAB, or LabView. * Implement and optimize neural networks, machine learning principles and image segmentation techniques. * Enhance images to increase detection accuracy. Skills & Experience Required: * Proficiency in Python, MATLAB, and LabView. * Sound understanding of neural networks and machine learning principles. * Solid skills in image segmentation. * Previous work in medical image processing, especially in ophthalmology, is a plus.

I'm in need of a uniquely designed minimalist logo aimed at enhancing my brand recognition. Proficiency in minimalistic design principles is crucial, as is a keen understanding of building a compelling brand image. Please provide the final files in JPEG, PNG, and SVG formats. Successful portfolio in logo design would be advantageous. It should match the logo...designed minimalist logo aimed at enhancing my brand recognition. Proficiency in minimalistic design principles is crucial, as is a keen understanding of building a compelling brand image. Please provide the final files in JPEG, PNG, and SVG formats. Successful portfolio in logo design would be advantageous. It should match the logo of our governing body i.e. Institute of Chartered acoountants of India. Logo of the instit...

I am in need of a skilled developer to create an API that will provide accurate details on various aspects of a vehicle. - The API should be able to provide: - Insurance information - Pollution Under Control Certificate (PUCC) - Vehicle registration details I have no specific requirements for the programming language or technology that should be used for the development of this API. The API should be accessible through the link provided: Ideal skills and experience for this project include: - Expertise in API development - Proficiency in handling vehicle data - Experience with web application integration - Familiarity with the types of data being accessed Your understanding of the importance of accuracy and data security

I'm currently working on a project that involves compiler construction in Java. I'm looking for a professional who can deliver effective semantical analysis ensuring that my project successfully passes private tests. The ideal candidate should have a background in compiler construction, particularly with hands-on experience in Java. Key requirements include: - In-depth understanding of compiler construction principles - Proven experience in semantic analysis - Proficient in Java programming - Ability to deliver error messages for incorrect syntax - Familiarity with integrating semantical analysis into existing Java projects This project has already integrated the semantical analysis, and you will be required to enhance it to effe...

I'm seeking a qualified automation developer to create an automation framework in Java, specially tailored for the execution of functional tests snd regressiontests. This project requires: - Fluency in Java language programming, with demonstrable experience in developing automated frameworks. - A strong background in software testing, particularly in thetesting area. - A deep understanding of scalable systems, capable of growing to meet increasing needs. With your expertise in this domain, you should facilitate the task of creating, implementing and scaling functional tests. Please ensure your work is properly documented for future maintenance and scaling. It is crucial for me that the framework can be effortlessly scaled and served according to the evolving req...

I'm in need of an expert in Go programming language with a strong background in DevOps. You'll be tasked with optimizing my code and setting up automated testing. Key tasks include: - **Code Optimization**: I'm looking to significantly improve the performance and memory usage of my application. You should be able to identify performance bottlenecks and develop optimized solutions. - **Automated Testing**: I need you to set up a comprehensive testing framework that ensures high test coverage. Your role will also involve ensuring the application is scalable and efficiently utilizes resources. Your expertise should help in balancing fast response times with resource conservation. Ideal candidates should: - Have extensive experience with Go programming - Be...

...you in getting the project correct. The device needs the following features. A manual to get the device up and running and ready to flash firmware changed needs to be provided. Touch screen (minimum 240px x 360px). 24vDC input 1 x CANbus port (use RJ45 socket, 500K board rate). 1 x RS485 Port (use RJ45 socket, 500K board rate). 1 x USB port for communication (use USB socket). 1 x USB port for programming and debugging (use USB socket). 1 differential RX and TX UART , thus the TXP , TXN and RXP , RXN, see attached "Differential UART" for details of the current device. The is meant to communicate with that device(use same socket family as contactors but 4 pin) 8 x 24V contactor outputs(make sure the board can support the current requirements of the contactors, see "...