Hire Vetted Web Application Engineers at Upstaff - Page 2

- Full-stack web developer with more than 9 years of commercial experience. - Has worked on a wide range of projects, including financial remittance systems, medical appointment websites, and payment systems for electronic document exchange services. - Has experience working with a range of technologies including ASP.NET Core, .NET Core, EF Core, TypeScript, Node.js, Microservices, Kafka, Azure, AWS, Angular, React, Vue.js, and WPF. - Strong bug-fixing skills and experience with DevOps responsibilities. - Upper-Intermediate English

- Full-Stack .NET Engineer with 16 years of experience developing innovative products and leading teams and companies in the IT sector. - Has 6+ years of experience working with payment systems integrating MasterCard, Visa, Payoneer, and PayPal into the user's programs. - Has 4 years of experience with Sitecore in different domains like Hospitality, Tourism, and Automotive. - Expertise in system architecture, analytics, optimization, DevOps - Proficient in C# and .NET framework, with extensive experience in ASP.NET Core, Blazor, and Electron.NET. - Strong background in implementing DevOps practices, including continuous integration and continuous deployment (CI/CD), version control using Git, and automation with tools like Jenkins and Azure DevOps. - Led and managed teams in various roles such as Team Lead, Architect, and DevOps. Demonstrated leadership skills in defining goals, assigning tasks, and ensuring project success.

- 10+ years with Salesforce (mostly B2C Commerce), I have successfully built topnotch back-end and front-end for various e-commerce websites, - improved Salesforce solutions for clients, and created many integrations in small and large teams. I have experience as a Salesforce developer with Service, Sales, Financial Services, Communications, and Marketing Clouds. - Past projects include developing solution approaches for diverse tasks such as integrating all import/export jobs with the client's SFTP servers, integrating third-party services using a services framework, LINK integrations, and building custom integration cartridges for payment processors like Adyen and Rakuten.

- Senior Full-Stack Engineer with over 8 years of industry experience and a solid educational background with a Bachelor's degree in Computer Science from Holy Angel University. - Expertise in a wide range of programming languages (JavaScript, TypeScript, PHP, Java, Python, Golang, C#) and frameworks (React, Next.js, Vue, Node, Laravel, Django), enabling versatile full-stack development. - Proficient in modern DevOps and cloud technologies (Docker, Kubernetes, AWS, GCP), AI & ML implementations (PyTorch, TensorFlow), and creating responsive front-end applications that improve user experience. - A track record of building and maintaining large-scale, AI-integrated applications, such as a consumer savings app with 20,000+ active users. - Strong grasp of databases (MySQL, PostgreSQL, MongoDB, Firebase, Redis) and proficiency in Version Control (Git), improving collaboration and SDLC efficiency. - Demonstrated ability to drive projects from concept to deployment, with an emphasis on clean code, automated testing, and CI/CD practices.

Software engineer specializing in scalable React applications, with a robust engineering background in microelectronics and applied physics. Experienced in working with international teams, the engineer boasts a track record of successful frontend development across EdTech and enterprise domains. Notable technical competencies include mastery of JavaScript (ES6+), TypeScript, React.js, Next.js, and performance optimization. Key achievements include A/B Testing for UX enhancement, leading API integrations and performance boosting initiatives. Armed with Agile methodologies, the candidate has effectively communicated and coordinated within cross-functional teams. With a solid foundation in computer science education and hands-on experience, this candidate is a fit for roles requiring deep technical expertise and a commitment to high-quality, efficient software development.

Seasoned full-stack .NET developer with over 11 years' experience specializing in C# and ASP.NET Core application development. Proven track record in building scalable and reliable applications across healthcare, logistics, and financial industries. Expertise in database optimization with MSSQL and implementing RESTful APIs, marked by success in creating responsive web interfaces enhanced with technologies like ReactJS and TypeScript. Holds certifications in ASP.NET Core and Angular app development, as well as SAP Business One. Adept in Agile methodologies and CI/CD practices using Azure DevOps.

Engineer with 6 years of experience specializes in back-end development, architecture, and optimization. Proficient in JavaScript, TypeScript, Python, Node.js, and a suite of modern database technologies. Delivered complex projects, including multi-tenant SaaS platforms and event management systems. Holds a BE in IT with a strong grasp of Agile SDLC and coding best practices. Demonstrated skills in AWS, RESTful APIs, and both SQL and NoSQL databases, with a track record of mentoring teams and driving engineering excellence.

- Senior Software Developer with over 9 years of experience in full-stack development and project management, skilled in Python, C#.NET, JavaScript, and more. - Proven track record in leading teams and delivering 20+ projects in telecom, fintech, and agri-tech sectors. - Expertise in backend architecture, API development, AI integration, and agile methodologies. - Demonstrated success in digital transformations, SDLC management, reducing operational costs, and enhancing system reliability. - Holds a Bachelor's degree in Business IT from the University of Greenwich and advanced computer studies diplomas. - Recognized for mentoring junior developers and achieving a 100% client satisfaction rate on enterprise-level projects.

A proficient web developer with years of practical experience, specializing in creating robust websites using WordPress, Wix, and Shopify. Has a strong foundation in Computer Science with a BS degree from DHA Suffa University. Highly skilled in website design, evidenced by a history of successfully freelancing in the domain. Demonstrates a clear understanding of software development practices and the SDLC. Technically adept in numerous aspects of web development including graphic design and WordPress theme customization, this candidate has a proven track record with companies like Omar Technologies and Dracarys Developers, bringing to the table a blend of technical expertise and pragmatic problem-solving abilities.

Backend Engineer with proven expertise in scalable and secure products using Node.js, Express.js, and MongoDB. Demonstrates technical proficiency in building RESTful APIs, integrating payment services like Paystack, and deploying robust authentication systems. Engages in content creation, sharing backend tutorials while also fostering a community of developers. Holds a bachelor's degree in Environmental Education with further specialization in backend engineering through a diploma. Proven track record in problem-solving and product enhancement within a collaborative team in the travel industry. Key projects include a full-stack Blog Authentication System and a Wallet Transaction System, showcasing proficiency in Node.js, Express, MongoDB, and JWT.

Software engineer with 5 years of experience specializing in full-stack development, adept in both front-end and back-end technologies. Key skills include mastery of React.js, Redux Toolkit, Node.js, Express.js, and familiarity with modern frontend frameworks. Proven track record of driving innovation and handling complex problems, demonstrated by achievements such as the AI-driven navigation bar and data analysis in computational notebooks at BetterBrain. Expert in enhancing user experiences, improving operational efficiency by 30%, and mastering data management solutions. Academic background supported by a Bachelor's degree in Computer Science and continuous professional development through courses. An engineer proficient in SDLC, agile methodologies, and modern development practices, ready to deliver top-tier web applications.

Versatile Junior Developer with expertise in React.js, Core PHP, CodeIgniter, MySQL, and JavaScript, along with a solid foundation in database systems and software engineering from B.Tech in Computer Science. Demonstrated skills in developing dynamic web applications, implementing CRUD operations, and designing secure API integrations. Proven ability to work collaboratively in team environments, paired with a commitment to maintaining high-quality standards in line with CMMi guidelines. Recognized for efficiently handling client requirements, troubleshooting issues, and mentoring junior team members. Portfolio includes building a multilingual import-export platform and a finance tracking app. Holds a Full Stack Developer Certification, showcasing proficiency in modern web technologies.

Expert with Angular, Typescript, Javascript, RxJs, enteprise level applications. Currently learning React and Next.js framework

Expert software engineer with 20+ years of experience specializing in backend and full-stack development. Proficient in an array of languages like PHP, Visual Basic, and JavaScript, with a strong foundation in database architecture across MySQL, PostgreSQL, and SQL Server. Demonstrates a consistent track record of optimizing system performance and scalability, evidenced by a 40% reduction in load times and a successful migration from Delphi to PHP. Holds an engineering degree and numerous technical certifications, underpinning a solid educational foundation in computer science. Recognized for advanced technical skills and delivering high-impact projects such as ScanChex Mobile and comprehensive payroll and administrative systems.

With over half a decade of experience, the engineer stands out as a seasoned React Developer who possesses a deep understanding of front-end technologies including ReactJS, NextJS, JavaScript, and Typescript. An adept professional in employing Rest APIs, Redux, and various CSS frameworks such as Material UI and Tailwind for creating responsive and user-friendly interfaces. The engineer's portfolio includes significant contributions to diverse domains like Social Networking, AgriTech, and IT Services, which showcases versatility and technical acumen. Leveraging a strong background in the entire software development life cycle, the engineer has a proven track record in implementing CI/CD pipelines and maintaining code versions using Git, demonstrating an expertise that optimizes application features and ensures delivery of high-quality software products.

- 8+ years of experience in backend development with a strong focus on Python and distributed systems. - Expertise in Django, FastAPI, and Flask, including experience building and optimizing microservices architectures. - Skilled in designing and maintaining REST APIs and GraphQL services for large-scale telecom, healthcare, and e-commerce platforms. - Deep understanding of PostgreSQL, SQLAlchemy, and MySQL, with experience in database design, optimization, and performance tuning. - Skilled in Docker and Kubernetes for containerization and orchestration, as well as CI/CD pipelines setup using Jenkins. - Experienced in asynchronous programming and real-time systems development. - Strong knowledge of OOP, SOLID, and design patterns, with experience implementing secure and testable backend code. - Worked with AWS (EC2, RDS, S3) and Azure AD B2C for authentication and cloud infrastructure management. - Background in AI integration, data encryption, and authorization systems for enterprise-grade software solutions.

Frontend Developer with over 1 year of self-led learning and 9+ months of hands-on project experience. Expertise in JavaScript, TypeScript, React.js, and Python. Proficient with backend technologies such as Node.js, Express.js, and NestJS, including RESTful APIs and database management using PostgreSQL and Firebase. Demonstrated ability in deploying web applications with tools like Render and CI/CD practices. Strong focus on responsive design, accessibility, and performance optimization, underpinned by knowledge of modern development methodologies and design patterns.

Seasoned Full-stack Developer with a comprehensive understanding of both front-end and back-end technologies, proficient in React, Node.js, and NestJS. Brings over 3 years of commercial experience in creating web applications and automation bots, with a proven track record of optimizing performance and enhancing prompt designs for LLMs resulting in a 30% quality improvement. Demonstrated success in scalable solution development with a focus on efficiency, evident from a 40% MySQL query performance enhancement. Holds solid DevOps fundamentals with hands-on experience in Docker, Git, CI/CD, and a diverse tech stack encompassing Sequelize ORM, Python, and various LLM APIs. Proactive problem-solver and an advocate for clean code practices, geared with a strong education in technology, highlighted by a notable GPA from AEH. Eligible to work in the EU, multilingual with proficiency in English, Polish, Russian, and Belarusian, and with a future plan to potentially shift base to Düsseldorf in 2026.

- 5+ years of experience in Python backend development, focused on distributed systems, REST API design, and microservice architecture; - Experienced with FastAPI, Django, and Django REST Framework, with a deep understanding of framework internals and asynchronous programming (asyncio, Celery, Kafka); - Experience developing and maintaining scalable APIs and high-performance backend services for AI-driven platforms, cryptocurrency systems, and automation tools; - Solid knowledge of RDBMS systems with emphasis on PostgreSQL - database schema design, optimization, and query performance tuning; - Experience with SQLAlchemy (declarative and async modes) and integration of data pipelines across multiple services; - Skilled in Docker-based deployments and cloud environments (AWS, Azure) with hands-on CI/CD setup and monitoring; - Experienced in secure authentication systems (JWT, OAuth2) and real-time data streaming using Kafka and Celery; - Strong command of SDLC, code quality, testing (Pytest), and Agile methodologies; - Experience in AI integration - building and deploying AI agents and workflow automation tools with LangChain, Supabase, and Firebase.

A seasoned software engineer with extensive experience in developing, maintaining, and testing systems, particularly with the Open Source SONiC OS at Nokia. Proficient in a wide range of programming languages including Rust, C/C++, Python, TypeScript, Lua, and scripting with Bash. Demonstrated expertise in Linux kernel development, network protocols, containerization with Docker, and CI/CD pipelines using Gitlab. Contributed significant automation improvements through tools like Ansible, Prometheus, and Grafana. Additionally, has a background in service desk support with a focus on Azure and Active Directory, and demonstrates ongoing commitment to professional development as shown by their technical degree from Hive Helsinki, with a strong foundation in algorithms, network programming, and game development.

- Full Stack Developer with 5+ years of experience building and scaling web & mobile applications using the MERN stack, React Native, and DevOps practices, including Docker, CI/CD, and AWS. - Adept at designing, developing, and deploying production-ready MVPs for various clients, with a record of 25+ successful product launches. - Proficient in React.js, such as employing advanced state management with Redux and React Context, and optimizing performance with best practices like lazy loading and code splitting. - Technical writer and educator with content reaching over 700K readers, contributing to freeCodeCamp and other tech platforms, enhancing knowledge sharing within the developer community. - Holds a BTech in Computer Science, providing a solid foundation in software engineering principles; experienced in collaborating with design teams to create fluid, responsive UI/UX for web applications. - Demonstrates a deep understanding of software development life cycle and modern development methodologies, as well as a knack for teaching coding and assisting clients with SEO and organic growth.

Results-driven Senior Java Backend Developer with 11+ years of experience specialising in Java-based API integration and microservices architecture. Worked in international teams of 2–25 members, both on-site and remotely, with 3 years of proven team leadership. • Expertise: Kubernetes (AKS, AWS, GCP , OpenShift), cloud computing, enterprise integration platforms (EIP), and workflow automation. • Leadership: Successfully led teams, mentored developers, and drove the adoption of best practices in software design, CI/CD, and Agile methodologies (Scrum, Kanban).

Software Engineer with a strong background in full-stack development, having worked with a variety of technologies including ReactJs, NextJs, NestJs, NodeJs, and Go. Exhibits proficiency in both front and backend development, with experience using databases like PostgreSQL and MongoDB. Utilizes Microservices Architecture with Kafka and demonstrates a keen understanding of event-driven patterns for scalable and efficient applications. Proven track record in delivering optimized web solutions, achieving notable performance improvements and containerizing applications with Docker for streamlined deployment. Strong proponent of clean code and best practices in security, particularly in the development of a secure password manager with end-to-end encryption. Evidences a Bachelor’s degree in Management Information Systems (MIS) from Lebanese University, underlying a solid foundation in computer science.

Software engineer with hands-on experience in multiple languages including Python, JavaScript, Java, and proficiency in web development. Deep knowledge of frameworks such as Django, Flask, and frontend technologies like React, Vue.js, and CSS. Notable achievements include developing a highly downloaded plugin for Open Broadcaster Software and an innovative online music platform. Holds a bachelor’s degree in Computer Science from National Open University of Nigeria and a National Diploma in Computer Science and has practical experience with deploying applications on AWS and Heroku. The engineer effectively utilizes version control with Git and engages in agile practices with tools like Jira and Trello. Specializes in API development, cybersecurity, and responsive frontend implementation, and is known for efficiency in remote work environments.

- Full-Stack Engineer with a strong background in software engineering - 8+ years with React, Vue, and Angular - Backend systems with NodeJS, PHP, Laravel, and various database technologies such as MySQL, PostgreSQL, and MongoDB. - Holds a Specialist degree in Software Engineering

- 4+ years with JavaScript, Node.js, React - Proficiency in integrating third-party services and APIs, creating highly dynamic user interfaces and service architectures. - Bachelor's degree in Software Engineering

- Full Stack Developer with 1+ years of experience in designing scalable, production-grade web applications using the MERN stack and AWS cloud services. - Proficiency in React.js, Node.js, MongoDB, AWS Lambda, Cognito, API Gateway, and S3. Expert in serverless architecture, RESTful APIs, database design, authentication systems, and performance optimization. - Developed several full-stack applications, including a CV generation platform with optimized PDF exports and serverless APIs handling over 10,000+ requests daily. - Holds a Bachelor's degree in Computer Engineering, complementing his practical coding skills with a strong foundation in computer science principles. - Agile and DevOps advocate with experience in using tools like Git, GitHub, and AWS Suite for iteration, version control, and infrastructure as code. - Dedicated to best practices in software development, including secure coding, performance measurements, structured logging, and clean architecture implementation.

With over a decade of specialized experience in frontend development and accessibility engineering, this candidate stands out for their expertise in creating inclusive digital environments compliant with WCAG standards. Their deep understanding of user-centric design is reflected in their proficiency with HTML, CSS, TypeScript, and modern frameworks such as Angular and React. They have a proven track record in performing detailed accessibility audits, leveraging assistive technologies and testing tools to enhance project compliance with European and international laws. The candidate's front-end development experience is complemented with practical proficiency in using ARIA patterns, semantic HTML, and establishing keyboard navigation practices. Their portfolio includes close collaboration with cross-functional teams to successfully implement fixes and features that significantly improve user accessibility, ensuring rigorous adherence to accessibility audits and VPAT documentation.

Accomplished software engineer with 15+ years of experience in driving technology solutions across various industries. Expert in B2B/B2C sales strategy with a focus on IT and technology-based applications. Noteworthy for implementing go-to-market strategies and digital marketing campaigns that enhance brand visibility and product reach. Strategic thinker with an MBA in Business Development Management and a strong record in leveraging data insights for business growth. Credits include a marked 25% increase in sales revenue via strategic partnerships and a 40% boost in the sales pipeline with a leading edge in CRM optimization and customer relationship management. Proficient in spearheading team performance and executing market research to elevate competitive standings through innovative product offerings.

With over 9 years of experience, the engineer has established a strong reputation in full stack development, exhibiting prowess in Python, Django, React JS, and front-end JavaScript technologies. They have a proven track record in leading and developing scalable web applications, showcasing competencies in database schema design, backend logic, API creation, and performance optimization. Their educational foundation in Computer Sciences is complemented by their ability to work in team environments, driving projects to successful completion and mentoring junior developers. The engineer possesses practical knowledge of cloud services, version control, data scrapping tools, CI/CD pipelines, and has actively contributed to various projects, demonstrating technical agility across domains such as e-commerce, HR management, sentiment analysis, and more.

Software engineer with over 20 years of professional experience, adept in backend development, database programming, and application deployment. Graduated with a Bachelor's Degree in Computer Science from the University of Illinois at Chicago, demonstrating a robust educational foundation in the field. Exhibits proficiency in a multitude of technologies including C#, ASP.NET, Microsoft SQL Server, Oracle PL/SQL, and modern development tools like Visual Studio. Specializes in financial and accounting software, having developed key applications for revenue management and cloud-based accounting platforms, aligning with industry practices such as SDLC and Agile methodologies. Holds a track record in enhancing legacy systems and integrating APIs with a focus on improving application efficiency and user experience.

Cloud-focused Software Engineer with hands-on experience in full-stack app development, cloud infrastructure, and AI, leveraging a strong foundation in computer systems engineering from Midlands State University. Expertise lies in designing scalable, secure cloud solutions and employing automation in DevOps pipelines, manifested through project work including the development of a Security & Safety Solutions Web App and an AI Customer Feedback Classifier on AWS. Technologically proficient with AWS, Docker, Kubernetes, Terraform, among others, coupled with a background in multiple programming languages like Python, JavaScript, and Java, which was applied in intern role at Fredca Security. Holds AWS Certified Cloud Practitioner and other relevant certifications, underscoring technical proficiency and dedication to cloud services excellence.