The ultimate guide to hiring a web developer in 2021
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
Software testing is an essential part of development process to ensure that the end product created is functioning as expected. A software tester will use various techniques, skills, and processes to assess the quality of a product or in other words the software tester helps to find defects and eliminate them before the product is released to customers for usage. A professional software tester has great command over coding, software development principles, along with an analytical & critical thinking approach to ensure that the software works precisely according to its specifications. Software testers are responsible for making sure that end users do not encounter any technical issues when using the product.
Here's some projects that our expert Software Testers made real:
When it comes to Software Testing, our highly skilled professionals prove time and time again that their expertise in this field is unparalleled. Our team of experts has a track record of successful projects that proves our high level of commitment when it comes to delivering quality software testing services. We invite you to post your project on Freelancer.com and hire specialist Software Tester today for your project that will be tailored to your specific needs!
From 142,054 reviews, clients rate our Software Testers 4.9 out of 5 stars.Software testing is an essential part of development process to ensure that the end product created is functioning as expected. A software tester will use various techniques, skills, and processes to assess the quality of a product or in other words the software tester helps to find defects and eliminate them before the product is released to customers for usage. A professional software tester has great command over coding, software development principles, along with an analytical & critical thinking approach to ensure that the software works precisely according to its specifications. Software testers are responsible for making sure that end users do not encounter any technical issues when using the product.
Here's some projects that our expert Software Testers made real:
When it comes to Software Testing, our highly skilled professionals prove time and time again that their expertise in this field is unparalleled. Our team of experts has a track record of successful projects that proves our high level of commitment when it comes to delivering quality software testing services. We invite you to post your project on Freelancer.com and hire specialist Software Tester today for your project that will be tailored to your specific needs!
From 142,054 reviews, clients rate our Software Testers 4.9 out of 5 stars.I have a clear concept for a mobile application and now need it brought to life for both iOS and Android. The goal is a single codebase that yields two polished, store-ready apps with consistent user experiences. I’m open to the framework you prefer—Flutter, React Native, or another modern cross-platform tool—as long as performance and maintainability stay top of mind. A successful engagement will give me: • A fully functioning app compiled and tested on the latest versions of iOS and Android • All project source code with clean, well-commented structure • Brief setup documentation so future updates can be handled smoothly When you respond, focus on the experience that makes you the right fit—projects you’ve shipped, technologies you&rsq...
We are looking for an experienced and detail-oriented QA Tester to perform a complete quality check of our Astrology mobile application. The main goal is to thoroughly test the entire app, identify bugs, usability issues, errors, and performance problems, and provide structured reports that can be directly shared with our development team. Responsibilities: Perform end-to-end testing of the full application flow Identify UI/UX issues, functional bugs, crashes, and performance errors Test all core features including user flows, payments, chats/calls, and navigation Check compatibility across different devices and screen sizes Provide clear, well-documented bug reports with screenshots/videos and steps to reproduce Suggest improvements to enhance user experience and app stability Requirement...
We have dev project delivery in Feb. Need build engineer to build rc1 from sources. Cooperation woth dev. 2-10j work. C c++ needed.
I need a Windows-based desktop program that follows each sofa, chair, or table we build from the moment it is sold right through to the truck leaving our dock. The flow should start with order entry, automatically raise the fabric purchase request, then guide the piece through cutting, frame-building, upholstery, packaging, and finally shipping. At every stage I want a clear status board and simple way to update progress so the whole team can see what is waiting, what is in work, and what is finished. A small local SQL database is fine as long as it scales to a few dozen simultaneous users; if you prefer another lightweight option, mention it and why. The interface must be straightforward—touch-friendly for the shop floor, keyboard-driven in the office—so staff can scan a barc...
I’m building a custom CRM in Bubble with: • Companies • Clients / Contacts • Interactions (meetings, calls, etc.) • Projects All of these entities generate follow-ups that drive a dashboard view. The dashboard shows: • Follow-ups due • Counts of companies, interactions, projects All grouped by user, so managers can track team activity. The app is live and mostly functional, but I’m running into role-based update and privacy issues that need a senior Bubble developer to audit and fix properly. ⸻ User Roles & Intended Logic There are three role levels: 1. Representative (lowest) 2. Delegate 3. Manager (highest) Intended behavior: • Representatives can see and edit only their own data • Delegates can: • See their o...
Virtual assistance for testing in Burkina Faso,Cameroon, Ghana, Guinea. We are looking for a QA specialist, a virtual assistant or a data scraper based in Burkina Faso, Cameroon, Ghana, Guinea for long-term cooperation to test mobile and web applications. The ideal candidate must be detail-oriented, reliable, and able to strictly follow provided instructions and test scenarios. No special skills are required to complete the testing
I need a skilled tester to perform functional testing on my web application. The focus will be on ensuring business rules are correctly implemented, with a specific emphasis on form validation. Requirements: - Comprehensive testing of business rules - Form validation testing is mandatory Ideal Skills and Experience: - Proven experience in functional testing - Strong understanding of business rules - Attention to detail for form validation - Familiarity with testing tools and frameworks Looking for thorough documentation and clear reporting on any issues found.
Python for Openimestamps. I need a Python expert to install Python instance with Bitcoin library fully updateable including bitcoin key code instance. This installation needs to allow Pyhthon code to post yo zopentimestamps and retrieve the relevant .ost file for verification on Win 11 OS. No ChatGPT operators please. Onlg true Python specialists!
ATLANTIS OTA UPDATE SYSTEM – DEV PROMPT (WIFI TEST FIRMWARE) Objective Implement a production-grade OTA firmware update system for Atlantis controllers that is safe, rollback-capable, power-loss tolerant, and integrates with Blynk NCP (ESP32 runs unmodified NCP firmware). Deliver test firmware that validates the entire OTA lifecycle over Wi-Fi before Blynk integration. System Overview Hardware Primary MCU: STM32H723VIT6 (main firmware; Arduino sketch runtime) Connectivity MCU: ESP32 running Blynk NCP binary (not modifiable) Dealer flashing: Android Dealer Toolkit via USB-C UART, toggling BOOT0 + NRST, using STM32 ROM bootloader Dealer flashing is force-install / recovery Dealer flashing does NOT interact with running firmware Dealer flashing does NOT write OTA metadata Non-Negotiabl...
I need a lightweight manual dialer that runs smoothly on Windows and faithfully records every call I make. The core requirement is simple: I enter a number, hit dial, and the application logs key details—number dialed, start & end time, and call outcome—into a clear, exportable file (CSV or similar). While contact management or speed-dial shortcuts might be nice down the road, for this first release I only want reliable call-logging baked in. Feel free to build in a modular way so extra features can be bolted on later without a full rewrite. Deliverable: a Windows-ready installer (or portable EXE) plus clean, well-commented source code and a quick read-me that shows me how to configure, run, and access the log. I’ll test by placing 10 sample calls; if all appear...
I want to work with a Jmeter expert freelancer remotely for few hours this weekend. Im beginer to intermediate level with jmeter. I need a reusable JMX file that will let me stress-test our REST API. The flow is straightforward: first, the script must obtain an OAuth 2.0 access token and keep it available for every subsequent sampler; next, it should hit the file-upload endpoint and push a sample CSV using multipart/form-data. Please capture all correlation values (token, upload IDs, etc.) with regular expressions or JSON extractors so the run can scale with multiple virtual users. The test plan has to be cleanly organised with clear naming, user-defined variables for host, credentials, and file path, and a separate thread group ready for ramp-up tuning. Deliverables • A JMX f...
Virtual assistance for testing in Burkina Faso,Cameroon, Ghana, Guinea. We are looking for a QA specialist, a virtual assistant or a data scraper based in Burkina Faso, Cameroon, Ghana, Guinea for long-term cooperation to test mobile and web applications. The ideal candidate must be detail-oriented, reliable, and able to strictly follow provided instructions and test scenarios. No special skills are required to complete the testing
Project Title: Package Unreal Engine 5.1 Project with Convai Integration & Fix Assets Project Overview: I have an existing Unreal Engine 5.1 project using Convai API for AI chatbot/Metahuman professional packaging and optimization for multiple platforms Fix texture/material issues and general project cleanup Required Tasks: Package the Unreal Engine 5.1 project successfully Ensure Convai API chatbot works in packaged build (not only in editor) Fix missing/broken textures and material references Optimize assets for performance Resolve any blueprint/plugin errors Configure project settings for deployment Target Platforms (as many as possible): Windows (.exe) Android (.apk) Linux build Any other supported export suggestions are welcome Skills Required: Unreal Engine 5.1 expertise Conv...
I built an in-house app on Replit to monitor expenses and profit margins, but some numbers just don’t line up from one tab to the next. I’d like you to comb through three key areas—financial math, the underlying coding logic, and the user interface—to pinpoint where the discrepancies begin and end. The heart of the review is the financial calculations that drive our expenses tracking and profit-margin summaries. I want every formula, function, and cross-tab reference double-checked for accuracy and consistency. If the logic is sound but the UI is feeding the wrong inputs, show me exactly where; if the math is off, rewrite the formula and explain the fix. Deliverables • A corrected version of the code and formulas directly in the Replit project (fork or pull...
I already have a web-based EHR written in .NET that stalled before launch. The core workflows are in place, yet three areas still block us from going live: • Bug fixing (top priority): the current build shows several UI/UX inconsistencies, a handful of security gaps around authentication/authorization, and broken FHIR calls that return empty payloads or 500 errors. • FHIR integration: the R4 endpoints exist but half of the resources are unmapped and the conformance statement fails validation. . I need someone who has shipped an EHR or similar health-tech product, is comfortable working in C#, ASP.NET Core, Entity Framework, and knows the HL7 FHIR spec inside out. Familiarity with ONC certification criteria—USCDI data classes, SMART on FHIR launch, etc.—will make...
I'm looking for a developer to create a very basic air ticket reservation system using windows application form VB.Net and SQL Server. The application should include: Roles: - Admin: Manage system and users - Registered User: Book flights and cancel bookings Key Features: - Login/Registration: ask new users to register and then login to secure access for users - User/Admin Interface: users book, cancel, select payment option, and also can get smart destination recommendations Admins manage users, flights(add/edit), bookings, cancellations. - Booking/Cancellation flight reservations - Basic Payment Options: Credit/Debit Card, Bank Transfer - Smart Destination Recommendation: Suggest budget-friendly destinations based on user’s budget, travel type, source, departure date Idea...
I have a Bubble app where role-based updates are not behaving as expected—changes sometimes fail to reach the users whose roles should receive them, while other roles update just fine. Alongside that, I’m hitting a privacy snag: users are not able to modify someone else’s information even when the workflow should allow them to do so. I want a quick yet thorough pass over the configuration, followed by the actual repair work. The mini-audit must cover: • User permissions • Data flow • Privacy settings Please document any mis-configured rules you spot, then correct them directly in the Bubble editor. After the fixes, run a test with at least two different role types so I can see updates landing correctly and the privacy rules behaving exactly as int...
I have a production-ready, IGBT full-bridge welding inverter that already powers both TIG and MMA processes, yet the embedded side still needs a final expert pass before release. The control board is built around 8051 and STC MCUs running Keil C51 firmware, and every line of code directly shapes arc stability, HF start, AC balance, soft-start, and safety interlocks. The short-term goal: review, tidy, and extend the existing code so it drives the power stage flawlessly in TIG and MMA, AC and DC. That means refining PWM timing, gate-drive dead-time, current-feedback filtering, and all the little state-machine details that separate a decent welder from a great one. Core tasks and deliverables • Audit the present C51 codebase, flagging race conditions or timing pitfalls. • Im...
I’m building a Windows desktop application and need someone who already feels at home in the full .NET ecosystem—C#, WinForms or WPF, Entity Framework, and modern async patterns. The work covers the entire cycle: architecture decisions, coding, UI polish, thorough testing, and packaging for deployment on current Windows versions. I’ll share the functional outline and existing mock-ups as soon as we connect; clean, well-commented code and brief setup notes will serve as the final deliverables, alongside the signed installer. If you’ve shipped at least one production-grade desktop app in .NET and can point me to it, we can get started right away.
We need an experienced Open Journal Systems (OJS) developer to install, customize, configure, and deploy an academic journal as per a provided template. The journal must be fully functional and ready for article submission, peer review, copyediting, and publication. Hosting will be provided by us. Complete source code and database handover is mandatory. Scope (Summary) Install and configure latest stable OJS on our server Set up journal details, policies, theme, and branding as per template Configure full editorial workflow (submission → review → copyediting → publication) Configure SMTP email and automated system emails Set up user roles (Editor, Reviewer, Author, etc.) End-to-end testing and bug fixing Deploy live journal and hand over code + admin access Deliver...
My web backend already handles real-time WebSocket traffic and device-to-server messaging, but the client management module now needs immediate attention. The current codebase shows signs of SQL injection issues and server misconfigurations, and an initial scan hints at possible backdoors. Here’s what I need you to do: • Conduct a full security audit across the PHP + MySQL stack (running on Apache in a XAMPP-style setup) as well as the Node.js WebSocket layer. • Isolate and remove any backdoors, patch every SQL-injection entry point you uncover, and fix configuration mistakes that could expose the server. • Redeploy the cleaned code on a fresh, standard Linux server image, migrate the database where necessary, and confirm that all WebSocket real-time features r...
My small business already runs on Gmail, Chat, Docs, Sheets, Slides and Calendar, yet the mix of consumer versus business accounts and a growing email load (10+ messages a week and climbing) leaves the workflow scattered and privacy settings uncertain. What I need is a clean, well-documented Workspace configuration that respects data-sharing comfort levels while letting every tool work together smoothly. Here is what success looks like for me: • A concise audit of the current accounts that spells out where consumer logins can stay and where a business tier would be smarter. • Step-by-step configuration of Gmail (labels, filters, signature, templates), shared Drive folders, Chat spaces and Calendar sharing so the team can collaborate without chasing links. • Privacy an...
I'm seeking an experienced backend developer to audit my existing Node.js backend. The audit should cover the following areas: - Security: Identify vulnerabilities and suggest improvements. - Performance: Analyze and recommend enhancements for speed and efficiency. - Code Quality: Review code for best practices and maintainability. Requirements: - Proven experience with Node.js - Strong understanding of backend security, performance optimization, and code quality - Ability to work with and understand comprehensive documentation Please provide examples of previous audits you've conducted and any relevant certifications.
I’m looking for a QA Engineer who can join our Madurai team on a six-month contract and bring 3–4 years of solid quality-assurance experience to the table. Manual testing is the day-to-day backbone of the assignment, and I also need someone confident enough with automation to build and maintain suites that keep regression runs tight and reliable. You’ll collaborate closely with developers and product owners in our office, owning the full test cycle—from writing clear test plans to validating production fixes. If you already script with Selenium or a comparable framework, you’ll ramp up fast; if you have wider performance-testing exposure, that’s a welcome bonus but not essential. Key deliverables during the contract: • Comprehensive test plans...
I spun up a brand-new Azure Entra ID tenant and installed/used that tenant on my local machine. Ever since doing so, Microsoft Teams desktop refuses to load. The client gets stuck on the splash screen and then consistently throws the same sign-in error on every attempt. No other Microsoft 365 desktop apps (Word, Excel, Outlook, etc.) appear to be affected, which strongly suggests the issue is isolated to Teams authentication and/or licensing, likely stemming from Entra ID or Teams-related configuration applied during the tenant setup and sign-in on this machine. I’m looking for someone who can jump straight into the Entra admin portal (and, if useful, PowerShell and/or the Teams Admin Center) to trace the Teams sign-in flow, identify the misconfiguration, and apply the fix so the T...
We’re looking for an experienced .NET Developer to help migrate a legacy WinForms desktop application to a modern Blazor Server web application. This project includes refactoring business logic, rebuilding the UI with Razor Components, and upgrading the data access layer using Entity Framework Core. Project Tasks: Analyze and refactor existing WinForms workflows and logic Convert Entity Framework 6 (EDMX) models to EF Core (Code First or Reverse Engineered) Rebuild core modules (inventory, sales, purchasing, reporting, etc.) using Blazor Server Design responsive UIs using Razor Components Implement Dependency Injection and modern web architecture Work with our team for testing and implementation Skills Required: Strong experience with WinForms and .NET Framework Proficiency ...
Fix bugs in existing flutter ride hailing app(firebase) play store update. I have existing Flutter ride hailing app that is already live on Google play store. The original developer is not in the right frame on mind. Because of time, i need an experienced Flutter+Firebase developer to fix specific issues and prepare an updated build. Important: The app is already publish on play store, This is bug fixing +update NOT a new app, Source code and Firebase access will be provided. Issues to fix; pickup address shows coordinates/codes instead of real address- implement proper reverse geocoding. passenger does not see when a driver accepts a ride-fix real time ride status update Driver and Passenger chat is not working- fix firebase chat messaging & listeners General bug fixes and testin...
I would like to lease a Global Title for USSD testing and development. If possible, I would appreciate a prepaid option that allows flexible rental periods, such as 24-hour or weekly terms.
The login module of my application is code-complete and sitting on a staging server; what it still needs is a concise round of functional testing carried out immediately. Your job is to confirm that every user interaction, from landing on the sign-in page to receiving in-app confirmation after authentication, behaves exactly as specified across modern browsers and standard mobile resolutions. Core objectives • Verify each user path: new registration redirect, standard login, password reset, account lockout after failed attempts, and session timeout. • Check form validation messages, error handling, and field focus order. • Confirm that cookies, tokens, and session storage created during a successful login persist—or expire—according to spec. • Captu...
I’m rolling out a new Android app and need real-world testers who will stick with it for a full 15 days. The process is straightforward: first join the Google Group at , then accept the Play-Store test invitation here Once you’ve opted in, install the build, open it at least once, and keep it on your device for the entire test window. Throughout the two-week period you’re free to use the app as little or as much as you like; what matters is that it stays installed so I can gather stability and retention data from Google Play Console. Deliverables I’ll be looking for: • Confirmation screenshot showing you’ve joined the Google Group and accepted the Play test link • Device/Android version details so I can match crash logs • A brief note ...
Our Python-based platform has been in production long enough to accumulate a handful of thorny issues. I want a fresh, senior-level pair of eyes to go through the codebase, diagnose what’s really happening, and bring the system back to a stable, performant and secure state. Scope of the audit • Security: probe for obvious misconfigurations, insecure dependencies, injection risks and any surface that could be exploited. • Performance: profile critical paths, highlight bottlenecks, and suggest optimisations that translate into measurable speed-ups or lower resource usage. • Code quality: evaluate structure, readability and test coverage; recommend refactors that reduce technical debt. Highest priority fix Functionality issues come first. Anything preventing cor...
Summary We are a US-based startup building a comprehensive Gym Management SaaS (CRM) that includes a Mobile User App for gym members and a unified Web Portal for gym owners and staff. We are looking for detail-oriented QA Testers to perform rigorous testing on both platforms. Your goal is not just to find technical bugs but to identify gaps in User Flows, UI/UX inconsistencies, and logical errors in the system. Key Responsibilities: — Execute Full-Cycle Testing: Perform manual testing on the Mobile App (iOS/Android) and the Web Portal (Admin/Staff Dashboard). — Analyze User Flows: Walk through critical user journeys (e.g., member registration, class booking, staff dashboard access) to ensure they are intuitive and logical. — Report Bugs & UI Issues: Identify and do...
I need help running a live test of my new e-commerce checkout that supports AliPay and WeChat Pay. Because the endpoints are geo-fenced, the entire flow must be executed from within mainland China on a smartphone. You already use both AliPay and WeChat Pay in day-to-day life, and you have carried out payment-flow tests many times before, so the routine will feel familiar. I will give you a private link to the sandbox-to-production build plus a short checklist of what to capture (screenshots, timestamps, and the final transaction IDs). You will place a real order worth up to 80 CNY; the moment I see the callback hit my server I will immediately refund or reimburse you through the same channel. Deliverables – Screen recording or clear screenshots of each step (launch, QR scan, ...
I’m rolling out a new Android app and need real-world testers who will stick with it for a full 15 days. The process is straightforward: first join the Google Group at , then accept the Play-Store test invitation here Once you’ve opted in, install the build, open it at least once, and keep it on your device for the entire test window. Throughout the two-week period you’re free to use the app as little or as much as you like; what matters is that it stays installed so I can gather stability and retention data from Google Play Console. Deliverables I’ll be looking for: • Confirmation screenshot showing you’ve joined the Google Group and accepted the Play test link • Device/Android version details so I can match crash logs • A brief note ...
I have a small React + Vite app using Capacitor and Supabase. The UI is finished and must NOT be changed. I need help with a few focused technical fixes before release: - Android push notifications (FCM) are not working at all (iOS is OK). - In-app Messages and Alerts must update in real time (Supabase realtime). - Some auth/data issues: users sometimes can’t log in and saved records may disappear. Requirements: - Work inside the existing codebase only. - Minimal changes, no UI modifications. - Deliver a signed Android release APK ready for Google Play. - Provide an iOS build running in the simulator + clear steps to compile later. (I do NOT have an Apple Developer account.) Please show previous experience with Capacitor + FCM and confirm familiarity with React, Vite, Supabase ...
I’m looking for an experienced Power Pages consultant to work with me on an existing Dataverse setup, not a greenfield build. This is an external-facing Power Pages portal whose sole purpose is secure data submission and management into existing custom Dataverse tables. Existing setup (must be reviewed first) Three custom Dataverse tables already exist Relationships are already defined (parent + related child tables) Your first task will be to: * Review the current table structure * Validate relationships, columns, data types, and ownership * Flag any required changes upfront before portal configuration begins * No assumptions. No silent refactoring. Scope of work You will: * Configure a Power Pages site connected to my existing Dataverse tables * Surface a main parent f...
Necesito un pequeño software hecho a medida que instale y funcione sin complicaciones en Windows. Trabajo como Masajista y Terapeuta Gestalt y hoy llevo mis registros en hojas sueltas y un par de hojas de cálculo; busco concentrar todo en una única aplicación ligera, clara y en español. El núcleo debe ser una ficha de cliente con su historial completo de sesiones (fecha, tipo de tratamiento, notas rápidas). Desde la misma pantalla quiero poder registrar el cobro, generar una factura en PDF y, si lo deseo, programar un recordatorio automático para la próxima cita (correo, SMS o cualquier integración sencilla que me propongas). También me interesa un pequeño panel estadístico con los tres datos q...
Tenho um problema real a ser resolvido e preciso de alguém que entre, entenda a situação e entregue o resultado sem complicações. Trabalho 100 % remoto desde 2015 e já coordenei projetos que deixaram clientes satisfeitos no Brasil e no exterior; portanto, valorizo comunicação clara, prazos respeitados e qualidade consistente. O desafio pode estar em desenvolvimento de software, design gráfico ou redação/tradução — explicarei o escopo exato assim que você mostrar que domina a sua especialidade. O importante é receber uma solução funcional, bem documentada e pronta para uso. O que espero de você: • Diagnóstico rápido do problema e proposta d...
Saya sedang mengerjakan sebuah proyek pengembangan perangkat lunak dan membutuhkan bantuan di sisi pengujian fungsional. Pekerjaan ini menuntut kolaborasi erat dengan developer, analyst, dan QA internal agar setiap fitur yang kami rilis memenuhi standar kualitas sejak tahap awal. Tanggung jawab utama: • Menjabarkan requirement menjadi skenario uji yang jelas dan terukur. • Menyusun dan memelihara Test Plan serta Test Case detail. • Menjalankan pengujian fungsional—baik manual maupun otomatis—lalu mendokumentasikan hasilnya. • Melaporkan temuan melalui alat pelacak bug (contoh: JIRA) beserta langkah reproduksi yang lengkap. • Berkoordinasi secara proaktif dengan tim untuk verifikasi perbaikan dan regresi. Deliverable akhir: 1. Dokumen Test Plan...
Trabajo con Dolibarr 16.04 y necesito un módulo CFDIMX que se acople sin fricciones a nuestro sistema ERP actual. El objetivo es cubrir todo el flujo de facturación electrónica bajo la normatividad vigente del SAT. Debe contemplar: • Emisión de facturas electrónicas CFDI 4.0. • Complemento de pagos automático y editable. • Cancelación de facturas con acuse correspondiente. • Generación y timbrado de Carta Porte 2.0 para operaciones de transporte. Quiero que el módulo quede instalado, configurado y probado dentro del entorno productivo, con código fuente documentado para futuras actualizaciones. La integración hacia el ERP puede ser vía los hooks internos de Dolibarr o conexi&oa...
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
Learn how to find and work with a top-rated Google Chrome Developer for your project today!
Learn how to find and work with a skilled Geolocation Developer for your project. Tips and tricks to ensure successful collaboration.