Freelancer API Developers For Hire
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Hire ullaschandrakar
*Hyderabad, CT | uchandrakar143@gmail.com | 9903504229 ## **Professional Summary** Senior Quality Assurance Engineer with over a decade of experience architecting scalable automation frameworks for web, mobile, and backend systems. Expert in **high-stakes data integrity**, **performance validation**, and...*Hyderabad, CT | uchandrakar143@gmail.com | 9903504229 ## **Professional Summary** Senior Quality Assurance Engineer with over a decade of experience architecting scalable automation frameworks for web, mobile, and backend systems. Expert in **high-stakes data integrity**, **performance validation**, and **cross-platform automation**. Awarded "Employee of the Month" multiple times for preventing critical production failures and improving system performance. ## **Core Technical Toolkit** * **Programming Languages:** Java, SQL, JavaScript, Kotlin, C#. * **Automation Tools:** Playwright, Cypress, Selenium, Appium, Puppeteer, Protractor. * **Testing Frameworks:** TestNG, Cucumber (BDD), Jasmine, Gauge, POM, and CRAFT. * **Infrastructure & DevOps:** REST Assured, Postman, JMeter, Jenkins, Git, GitLab, BrowserStack, and Spring Boot. ## **Key Expertise & Projects** ### **1. Data Migration & Integrity Validation** * **AS400 to MariaDB Migration:** Developed custom comparison scripts to validate data field accuracy during large-scale database transitions, ensuring zero data loss. * **SOLR Search Engine Validation:** Built end-to-end scripts for field-by-field comparison when migrating to new SOLR search engines with updated database architectures. * **Environment Parity:** Created scripts to identify missing YAML keys and value differences when moving builds between lower and upper environments. ### **2. Performance & API Engineering** * **Load Testing:** Used **JMeter** to validate API changes and identify bottlenecks, leading to significant performance improvements in member-facing views. * **Workforce Planning APIs:** Automated validation for complex compensation modules, including tax exemptions and CTC calculations. ### **3. Mobile & Cross-Browser Automation** * **Mobile Testing:** Expert in **Detox** and **Perfecto** for automated Android device testing * **Scalable Browser Testing:** Integrated **BrowserStack** capabilities into existing frameworks to ensure seamless cross-platform compatibility. ## **Professional Experience** * **Senior QA Automation Engineer** | Copart | 2021 – 2024 * **SDET I** | Planful | 2019 – 2021 * **Junior QA Engineer** | Copart | 2018 – 2019 * **Associate** | Cognizant | 2016 – 2018 ## **Education & Certifications** * **B.Tech. in Electrical Engineering** | NIT Raipur * **Honors:** Multi-year Employee of the Month award winner (Copart & Planful). ### **How I Can Help Your Project:** 1. **Testability Audit:** I analyze your codebase to implement stable `data-testid` selectors and remove automation blockers. 2. **Scalable Frameworks:** I build TypeScript-based Playwright or Cypress suites using the **Page Object Model (POM)** for easy maintenance. 3. **Data-Heavy Testing:** I automate complex DB-to-UI verification to ensure your data is accurate across all layers. 4. **CI/CD Integration:** I wire all tests into your **GitHub Actions** or **Jenkins** pipelines for real-time reporting and failure analysis. less -
Hire Webtechfusion23
Webtechfusion23 Webtechfusion23
$30 USD / hour
✅Full-Stack Web Developer | 12 years of ExperiencePakistanI am a Full-Stack Web Developer with 12 years of experience in (𝗣𝗛𝗣, 𝗟𝗮𝗿𝗮𝘃𝗲𝗹,𝗖𝗼𝗱𝗲𝗶𝗴𝗻𝗶𝘁𝗲𝗿 & 𝗪𝗣) . I have successfully served more than 1,000 businesses through various freelancing platforms like Upwork and Fiverr. I absolutely love making software that helps businesses work better and smarter. It's like giving...I am a Full-Stack Web Developer with 12 years of experience in (𝗣𝗛𝗣, 𝗟𝗮𝗿𝗮𝘃𝗲𝗹,𝗖𝗼𝗱𝗲𝗶𝗴𝗻𝗶𝘁𝗲𝗿 & 𝗪𝗣) . I have successfully served more than 1,000 businesses through various freelancing platforms like Upwork and Fiverr. I absolutely love making software that helps businesses work better and smarter. It's like giving them a superpower! 𝗠𝗬 𝗦𝗘𝗥𝗩𝗜𝗖𝗘𝗦: ✔️Web based Enterprise Resource Planning (ERP) Software ✔️Web based Content Management Systems (CMS) ✔️Web based Inventory Management Systems ✔️Web based Accounting Management Systems ✔️Web Data Analytics Dashboards ✔️API Development ✔️Web Scraping ✔️Wordpress Website development ✔️Ecommerce/WooCommerece ✔️Web Security ✔️Payment integration (Paypal, Stripe, Visa, Master) ✔️Mobile App development ✔️Graphic Designing ✔️AI Automation 𝗠𝗬 𝗦𝗞𝗜𝗟𝗟𝗦 : Core PHP | MVC | CodeIgniter | Laravel | JavaScript | Wordpress | HTML5 | CSS 3 | jQuery | AJAX | MySQL | MySQLi | React JS | Node JS | Firebase | Cronjob | Cake PHP | FireStore | MongoDB | Cpanel | Web Security | Elementor | Divi | GPT | Chatbots | SSL | Metabase | CSV | Project Management | Ui/Ux | Figma | iOS and Android App Development | Flutter | React Native | GUI | Pulumi | Gruntworks | WIX 𝗣𝗢𝗥𝗧𝗙𝗢𝗟𝗜𝗢 ⭐⭐⭐⭐⭐ ERP System: https://demopump.munshei.pk Gaming & Gifts: https://bonustienda.com/app WooCommerace: https://sandalirasoterra.it/ Dropshipping: https://petsplanetcare.com/ Shopify:https://trustedpetproducts.com/ WooCommerace: https://joypack.com.mx/product-category/experiencias/ Customize Cart Plugin: https://noblendy.com/cart-2/ Wordpress Website for Movers: https://brightprofessionalmovers.com/ Traverls & Tours: https://pericoripiaotours.com/home-new/ Health & Care: https://atriohomecare.org/ Thank you Regards, Aftab Ahmad Full Stack Developer less -
Hire sanjay2004
Smartinfosys is a leading website development, corporate branding and SEO company that has been on the scene since 2001. Starting with a small set-up, we have gradually consolidated our resources and today have 150+ full-time team members working for you in Five Development Centers in India. We fit in with your...Smartinfosys is a leading website development, corporate branding and SEO company that has been on the scene since 2001. Starting with a small set-up, we have gradually consolidated our resources and today have 150+ full-time team members working for you in Five Development Centers in India. We fit in with your aspirations and works with the sole objective of empowering you and your business by providing state-of-the-art website design & development services, android & iOS apps design & development, corporate branding services, graphic design, and SEO services. Our services are: Website Design & Development Android & iPhone Apps Custom PHP Application Development Regular Website Maintenance Ecommerce Website Development CMS Website Development WordPress Websites API Integration, LLM API,REST API PHP Open Scripts Customization SEO,Node.js Audit AWS Corporate Branding / Graphic Design / Print Design Logo/ Van-Truck Wrap design / Tradeshow displays/ Flyers/Brochures/Book Covers/ PPT Presentation Social Media Marketing / Digital Marketing Blog ,Article writing We have featured in international publications such as Techgoss, 1mby1m and The Economic Times for our contribution to the web industry. less -
Hire freelancerimra59
freelancerimra59 freelancerimra59
$10 USD / hour
Web Developer | VA | CAD & Structural SupportBangladeshWelcome to my profile! Backed by over 52 five-star reviews and a flawless track record, I operate as a multi-disciplinary technical professional and digital solutions provider. I specialize in scaling businesses, building premium web applications, managing multi-channel ad campaigns, and handling complex...Welcome to my profile! Backed by over 52 five-star reviews and a flawless track record, I operate as a multi-disciplinary technical professional and digital solutions provider. I specialize in scaling businesses, building premium web applications, managing multi-channel ad campaigns, and handling complex technical/administrative operations. To accommodate my diverse expertise, my workflow is divided into 5 Core Specialized Divisions: 1. WEB DEVELOPMENT & E-COMMERCE HUB Full-stack store creation, speed optimization, and custom layout configuration. Expert in WordPress, Shopify, Wix, WooCommerce, and Webflow, alongside complete marketplace operations for Amazon and eBay (SEO, product listings, storefront design). 2. DIGITAL MARKETING & TRAFFIC ACQUISITION Architecting high-ROI paid ad funnels. End-to-end management of Google Ads (AdWords), Meta (Facebook/Instagram Ads), Snapchat, and TikTok campaigns targeted at lead generation, B2B recruitment, and e-commerce conversions. 3. VIRTUAL ASSISTANCE & BUSINESS AUTOMATION High-level executive support including data entry, email/inbox management, CRM updating, customer support, file organization, and comprehensive daily administrative operations. 4. CAD, DRAFTING & TECHNICAL SUPPORT Assisting engineering and construction management workflows with precise civil/structural arrangement layouts, AutoCAD drafting, document control, and technical schematic adjustments. 5. CONTENT & CREATIVE MULTIMEDIA Providing supplemental design layouts, ad creatives, responsive UI elements, and highly persuasive copywriting for landing pages and marketing campaigns. I work with absolute independence, strict attention to data integrity, and a fast infrastructure. Let’s collaborate to execute your project with 100% precision! less -
Hire Tanmoy236
I help startups and growing businesses design, build, and scale reliable digital products — without delays, guesswork, or communication gaps. I’m the founder of a professional marketing and technology services firm based in USA and Bangladesh, trusted by 400+ clients worldwide over the last 9+ years. My team and I...I help startups and growing businesses design, build, and scale reliable digital products — without delays, guesswork, or communication gaps. I’m the founder of a professional marketing and technology services firm based in USA and Bangladesh, trusted by 400+ clients worldwide over the last 9+ years. My team and I focus on delivery, stability, and long-term value, not just “finishing tasks.” 🔹 CORE SERVICES WE OFFER Software & Web Development ✅Custom Web Applications (Laravel, PHP, ASP.NET) ✅WordPress, Shopify & Magento Solutions ✅Admin Panels, Dashboards & APIs ✅Scalable Database Design & Management Mobile App Development ✅Android & iOS Applications ✅Flutter (Cross-Platform) ✅Backend & Web Services Integration UI/UX & Design ✅High-converting Landing Pages ✅PSD/Figma to HTML ✅Brand-aligned Website & Newsletter Design Business Automation & Data ✅Excel Automation (Formulas, VBA, Macros) ✅Data Analysis & Workflow Optimization Marketing Services & Digital Growth ✅SEO (On-Page & Off-Page) ✅Performance-focused Website Optimization ✅Technical SEO for Web Apps ✅Graphics Design ✅Video Editing ✅Digital Ads - Meta, Tiktok, google and LinkedIn Customer Support/Operations ✅In Bound and Outbound Calls ✅Customer Support agent less -
Hire wardahaider110
wardahaider110 wardahaider110
$30 USD / hour
Mobile Apps, SaaS & Website Development CompanyPakistanWe build reliable mobile apps, SaaS platforms, and custom web solutions for startups and growing businesses. With 7+ years of development experience, our team can support your project from planning and UI/UX design through development, testing, deployment, and ongoing maintenance. ✅ Our core services include: 🔹...We build reliable mobile apps, SaaS platforms, and custom web solutions for startups and growing businesses. With 7+ years of development experience, our team can support your project from planning and UI/UX design through development, testing, deployment, and ongoing maintenance. ✅ Our core services include: 🔹 Flutter mobile applications 🔹 React and modern web applications 🔹 Laravel, PHP and API development 🔹 WordPress, Shopify and WooCommerce 🔹 UI/UX design and interactive prototypes 🔹 Payment, third-party API and cloud integrations ✅ Why clients work with us: 🔹 5.0 rating across 90+ reviews 🔹 Preferred and Verified Freelancer 🔹 Clear communication and detailed planning 🔹 99% on-time and 100% on-budget record 🔹 Long-term technical support after launch Send us your requirements, existing documentation, or current product issues. We’ll review them and recommend a practical next step. less -
Hire natesd
Staff-level software engineering with 20+ years building production systems for startups and global companies including Cisco Systems and Qualcomm. We design and deliver complete solutions end-to-end, from low-level real-time infrastructure to full-stack web and mobile applications. What we do: - Real-Time &...Staff-level software engineering with 20+ years building production systems for startups and global companies including Cisco Systems and Qualcomm. We design and deliver complete solutions end-to-end, from low-level real-time infrastructure to full-stack web and mobile applications. What we do: - Real-Time & Performance-Critical Systems — low-latency apps, streaming, audio/video, embedded firmware - AI Integration — RAG systems, speech processing, LLMs built into real products - Full-Stack & Mobile — modern web apps and cross-platform mobile on solid backend architecture - Business Automation — Power Automate, Excel/VBA, Power BI dashboards, Sage, Office integrations - CAD & 3D — Solidworks, AutoCAD, STL modeling, HVAC load calculations - Web Platforms — WordPress, Joomla, Shopify, PHP less -
Hire oleksandrz14
Passionate and result-driven Full Stack Developer with expertise in building scalable, high-performance, and responsive web applications from concept to deployment. I specialize in turning complex ideas into clean, user-friendly digital products. Core Tech Stack: CMS & E-commerce: WordPress, Shopify,...Passionate and result-driven Full Stack Developer with expertise in building scalable, high-performance, and responsive web applications from concept to deployment. I specialize in turning complex ideas into clean, user-friendly digital products. Core Tech Stack: CMS & E-commerce: WordPress, Shopify, WooCommerce Frontend: React.js, Next.js, TypeScript, HTML5/CSS3, Tailwind CSS Backend: Node.js, Express, Python (Django/FastAPI), RESTful APIs Databases: PostgreSQL, MongoDB, MySQL Tools & Cloud: Git, Docker, AWS, Figma Why Work With Me? Clean, maintainable, and well-documented code Strong focus on UI/UX and seamless performance Clear communication and regular project updates 100% commitment to deadlines and quality Let’s turn your vision into reality! Feel free to send a message to discuss your project. less -
Hire YammTech110
YammTech Canada | Your Web, Mobile & Digital Growth Partner At YammTech Canada, we help businesses transform their ideas into high-growing digital products. Headquartered in Toronto with an expert global delivery hub in Pakistan, we serve as a long-term strategy, tech, and marketing partner for companies across...YammTech Canada | Your Web, Mobile & Digital Growth Partner At YammTech Canada, we help businesses transform their ideas into high-growing digital products. Headquartered in Toronto with an expert global delivery hub in Pakistan, we serve as a long-term strategy, tech, and marketing partner for companies across Canada, the US, and Europe. We don't just build software or run campaigns, we streamline your internal operations, scale your customer reach, and build systems that generate measurable business growth. 💻 How We Help Your Business Grow 1. Mobile Apps Built for Engagement Seamless User Experiences: Apps designed to keep your customers engaged, returning, and converting. Multi-Platform Reach: Complete app design and launch for both iPhone and Android users. Store Visibility: Optimization strategies that get your app discovered by the right audience. 2. Web & Business Automation Custom Web Platforms: High-performing websites and customer portals built for high conversion. E-Commerce & Store Expansion: End-to-end management for storefronts across Shopify, Amazon, and Walmart. Process Automation: Custom tools that automate repetitive tasks, saving your team hours every week. 3. High-Converting Marketing & Paid Ads Targeted Ad Campaigns: Cost-effective Facebook, Instagram, and Google campaigns that drive sales. Search Engine Visibility: Proven local and global SEO strategies to bring organic leads straight to you. Audience & Community Growth: Content strategies that build brand loyalists and active customer communities. 4. Branding & Visual Design Brand Strategy: Professional logos, marketing visuals, and brand guidelines that set you apart. 3D Visualizations: Realistic architectural and product 3D designs to bring your vision to life. 🌍 Global Reach, Canadian Roots Our Toronto-based leadership guarantees clear communication, strategy, and accountability, while our expert global delivery team ensures round-the-clock progress and cost-effective execution. 💡 Why Businesses Partner With YammTech ✅ Built for Business Scaling: We optimize your workflows, eliminate bottlenecks, and build tech that grows directly alongside your revenue. ✅ Focus on Measurable ROI: Every app, website, and ad campaign is structured around your business goals, sales growth, and customer satisfaction. ✅ End-to-End Execution: From strategy and design to launch, marketing, and ongoing support, we manage everything under one roof. ✅ Clear & Honest Communication: Transparent updates, direct project management, and zero confusing tech-jargon. less -
Hire tahasohail763
I help startups and businesses turn ideas, workflows, and complex requirements into scalable AI-powered mobile and web applications. With 8+ years of software development experience and 60+ completed projects, I build complete digital products from architecture and UI implementation to backend development, API...I help startups and businesses turn ideas, workflows, and complex requirements into scalable AI-powered mobile and web applications. With 8+ years of software development experience and 60+ completed projects, I build complete digital products from architecture and UI implementation to backend development, API integrations, AI features, testing, and deployment. My core areas include: • AI-powered mobile and web applications • SaaS product development • Custom business applications and platforms • Flutter apps for iOS and Android • React / Next.js web applications • Node.js and Laravel backend systems • REST APIs and third-party integrations • AI integrations, automation, chatbots, RAG and intelligent workflows • Admin panels, dashboards and business management systems • Existing application modernization, optimization and scaling I focus on building products that are reliable, maintainable, and ready to grow not just writing code to complete a task. Whether you are starting a new product, adding AI capabilities to an existing application, or replacing a manual business workflow with custom software, I can help you plan the technical approach and build the solution from end to end. Why clients work with me: • 8+ years of software development experience • 60+ completed projects • 4.9/5 client rating • Top Freelancer • Strong experience with startups and business applications • Full-stack development from frontend to backend and deployment • Clear communication, structured development, and long-term support If you have an app idea, SaaS product, existing system, or business process that needs to be turned into a reliable digital solution, send me the details. I’ll help you understand the right technical approach and the best way to build it. less
