Upstaff Developer Profile Directory
All vetted software engineers you need to build AI, Web3, and data Products.
- Dedicated Full-time commitment for long-term or Time& Material for shorter or ongoing support
- Europe, Israel, LatAm, United States, Asia geography coverage
- Remote and hybrid engagement
- Trial period, no termination fees or hidden costs for transparent and risk-free onboarding.
$9000/month
- 9+ years of professional expertise in the IT industry; - Rich experience in Frontend Development using (HTML5, CSS3, ES6,React, Angular, Angular JS, Node JS, React(fluent), Backbone(fluent), JQuery), strong technical background; - Experience with third-party services integration; - Experience in databases: MongoDB; - Experienced in software architecture performing; - Team Leading (Tech team); - Experienced in code reviewing and code refactoring - Available in 2 weeks after approval for the project
- 4 years of experience in software development based on frontend technologies. - Front-end developer with expertise in web & mobile application development based React.js/Vue.js, React Native, HTML/CSS. - Experienced in the next stages of the life cycle of development of business applications: planning, estimation, investigation, development, writing tests, support of existing code.
$5880/month
- 4+ years of experience in web development using React Native and React - Upper-Intermediate English - Available ASAP
- Seasoned Software Engineer with over 7 years of experience in backend and frontend development, technical team leadership, and optimizing complex systems. - In-depth knowledge of PHP, Node.js, React, Laravel, and extensive experience with database technologies like MySQL and MongoDB. - Proven track record in both leading development of critical systems and individual contributions, exemplified by successfully securing 1.5 TB of critical government data and improving platform performance significantly. - Proficient in the application of software engineering principles such as MVC, SOLID, and various architectural patterns in multiple project contexts. - Recognized for expertise in performance optimization, cross-functional teamwork, and integrating payment solutions in high-traffic platforms. - Fluent in English and native in Persian and Azari, with valuable experience in bridging communication between technical teams and stakeholders.
Seasoned Fullstack Web Developer with 4 years of specialized experience in the MERN stack, demonstrating solid expertise in REACT, NODE, EXPRESS, and MONGO DB technologies. Proficient in crafting efficient web applications and contributing to all phases of the SDLC, as evidenced by several successful web projects. Skilled in utilizing modern development tools like Vite, Postman, JSON, Git, and RESTful practices. Adept at leveraging frontend technologies such as React with HMR and Babel/SWC for expedited updates. Holds an educational foundation in Hospitality and Tourism Administration, complemented by coding bootcamp expertise. Technical prowess is further underlined by practical knowledge in Figma, JavaScript, SQL Server, and responsive web design, making them a standout candidate for frontend or fullstack roles in dynamic development environments.
Software engineer with 4 years of web development experience, including advanced proficiency in React.js, TypeScript, and state management libraries such as Redux and Zustand. Highly skilled in backend technologies like Node.js and Express.js, with a strong foundation in RESTful APIs and database management using MongoDB, MySQL, or PostgreSQL. Demonstrated expertise in performance optimization, code refactoring, and a thorough understanding of authentication mechanisms such as JWT. Well-versed in Agile development methodologies and tools like Git, Webpack, and Vite, with a proven track record of mentoring junior developers and leading projects to successful launches. Educational background includes a Bachelor's degree from Cairo University and ongoing online learning in web development.
- React/React Native Engineer with almost 6 years of professional experience - Experience with Amazon/Amplify/S3/Code push - Successfully developed both iOS and Android applications using React Native - Developing React/React Native apps that interface with Restful APIs - Experience with React/Redux/Third-Party API Integrations - Experience with GraphQL/Apollo - Upper Intermediate English - Available ASAP
- Experienced software engineer with about 5 years of commercial front-end development experience. - Proficient in CSS, HTML, SASS/SCSS, JavaScript, TypeScript, React, and Redux. - Skilled in creating user interfaces, developing client-side and mobile applications, and implementing responsive design. - Strong problem-solving and analytical skills with a focus on cross-browser compatibility and responsive markup design. - Familiarity with Three.js for creating and displaying 3D graphics in a browser. - Knowledge of Agile methodologies and experience working in an Agile development environment. - Proficient in using Git for version control and collaborating with team members. - Experience with REST APIs, Postman, Firebase, MongoDB, Docker, Jenkins, and Webpack for building and deploying applications. - Familiarity with software development practices, SDLC, and code review processes. - Strong communication skills and ability to work in a team environment. - Bachelor's degree in Computer Science or related field (if mentioned).
- Experienced full-stack developer with a strong background in software engineering and computer science education; - Proficient in Node.js, React, and PHP, with expertise in OOP and TypeScript; - Skilled in creating projects from scratch and working with legacy code; - Experienced in API integrations, including AWS S3, Google Maps, and Mailchimp; - Familiar with various technologies and frameworks such as Docker, PostgreSQL, Redis, and Laravel; - Strong understanding of SDLC, software development practices, and Agile methodologies; - Excellent communication skills and experience working with international customers and teams.
- 4+ years of practical experience in web development in the Front-end developer position - He has experience in developing web applications using VueJS, jQuery, JavaScript - He has blockchain experience - Upper-Intermediate English
Software engineer with extensive experience in front-end and back-end development, proficient in Core JavaScript and DOM API as well as Angular, React, and Vue. Valuable contributor to cross-functional teams with a track record of optimizing performance and streamlining SDLC through Agile methodologies. Recognized for delivering high-quality, user-friendly software solutions that exceed client expectations and contribute to business growth. Holds a First Class Honours BSc in Information Technology and Business Information System from MiddleSex University and an Advanced Diploma in Software Engineering from Aptech, distinguished by technical rigour and a practical approach to problem-solving. Employs a combination of in-depth technical expertise in the JavaScript ecosystem, software development best practices, and continuous professional development to drive impactful innovations.
- Magento Frontend Developer with more than 3,5 years of experience. - PWA Experience of 5 months - E-commerce systems development. - Informational sites development. - Corporate portals development. - Upper- Intermediate English. - Available ASAP.
I’ve been a front-end developer since 2019. Flexible, self-dependent, communicable person. I’m looking for ways to develop my programming skills. I have experience with responsive layout, web sites, mini applications in JS and SPA in Vue.js.
Hardworking front-end developer with 3+ years of extensive experience. I’ve worked on several challenging projects and have solid technical knowledge.
- More than 5 years of software development experience using Vue.js, - More than 5 years using WordPress technology. - Intermediate English. - Available ASAP.
Seasoned Full-Stack Engineer with 6+ years of significant experience in designing and building sophisticated web applications, with a particular strength in revenue management systems for the Japanese market. Known for exceptional proficiency in Python, JavaScript, and modern web technologies like Django, Flask, Vue.js, and React. Adept at all stages of software development from requirement analysis to deployment, consistently delivering projects that prioritize user experience and maintainability. Distinctive competencies include deep understanding of data visualization as evidenced by the implementation of complex features for SaaS platforms, combined with proficiency in critical full-stack development tools and practices such as Docker, CI/CD, and AWS. Recognized for a track record of remote freelancing success on Upwork, citing 100% job satisfaction over 24 jobs and more than 5,623 remote hours. Backed by a solid foundation in computer science with a completion of the reputable CS50x course from Harvard University.
- 11+ years of experience in Full Stack Engineer with main focus on JavaScript/TypeScript. - Experienced with all stages of the development cycle for dynamic web projects. - Well-versed in React/Redux & Vue & Angular. - Fluent English - Available ASAP - No vacation plans
- 4+ years of commercial experience in IT. - Experience in developing applications using JavaScript (Vue). - Good knowledge in JavaScript - Experience in Single Page Applications Development - Intermediate English - Available ASAP
$4570/month
Good understanding of HTML5 and CSS3. Highly proficient with Vue.js framework and its core principles. Ready to start ASAP.
As an experienced web developer with 7 years of experience specialising in developing WordPress websites of varying complexity. In the last 3 years, has focused on honing my skills in JavaScript, with a particular emphasis on using Vue/Vuex and WordPress REST API.
- 14+ years of experience in Web & Mobile App development - Fluent English - Available ASAP - No vacation plans
- 8+ years of commercial experience in IT - Experience in developing web applications using Vue.JS (Vuex, Vuetify) - Intermediate English - Good logical thinking, high level of responsibility. Communicative, responsible, hardworking, result-oriented, and team player - Available ASAP
I'm a second-year Computer Science student at Nanyang Technological University with a passion for full-stack development and cloud engineer , I’m seeking internships to combine my technical expertise and business acumen to drive innovative, tech-driven solutions.
Software engineer with a deep foundation in RDBMS design, including extensive experience in developing and bug fixing MySQL. Expertise in client-server protocols, lexical analysis, parsing, and SQL commands. Highly skilled in C and C++, with notable contributions like the MySQL++ API and software critical to the Mars Rover mission. Holds a BSc in Technology, with proficiencies in English, French, Italian, Greek, and Slavic languages. Recognized with numerous industry awards, including the 'MySQL Rock Star 2025'.
- 4+ years of experience as a Data Engineer, focused on ETL automation, data pipeline development, and optimization; - Strong skills in SQL, DBT, Airflow (Python), and experience with SAS, PostgreSQL, and BigQuery for building and optimizing ETL processes; - Experience working with Google Cloud (GCP) and AWS: utilizing GCP Storage, Pub/Sub, BigQuery, AWS S3, Glue, and Lambda for data processing and storage; - Built and automated ETL processes using DBT Cloud, integrated external APIs, and managed microservice deployments; - Optimized SDKs for data collection and transmission through Google Cloud Pub/Sub, used MongoDB for storing unstructured data; - Designed data pipelines for e-commerce: orchestrated complex processes with Druid, MinIO, Superset, and AWS for data analytics and processing; - Worked with big data and stream processing: using Apache Spark, Kafka, and Databricks for efficient transformation and analysis; - Amazon sales forecasting using ClickHouse, Vertex AI, integrated analytical models into business processes; - Experience in Data Lake migration and optimization of data storage, deploying cloud infrastructure and serverless solutions on AWS Lambda, Glue, and S3.
With over a decade of IT support and customer relations, the engineer has a solid track record of driving growth and process improvements in tech-centric roles. Experience includes resolving complex technical issues, optimizing IT systems for improved user experience, and leading cross-functional teams to success. Highlights of their achievements include a significant increase in company revenue, a high rate of customer satisfaction, and earning accolades for exceptional leadership. The engineer's professional background is underscored by impactful roles in operations management and IT support without specifying a computer science education or software engineering particulars.
Senior .NET Developer with over a decade of professional experience, showcasing advanced competencies in scalable and secure web application development, microservices architecture, and cloud solutions. Expertise in crafting optimized code by leveraging C#, ASP.NET Core, Entity Framework, and diverse databases like MS SQL Server and MongoDB. Proven track record in improving system performance, maintainability, and accelerating development cycles through SOLID principles and modern DevOps practices. Demonstrated ability touring in enterprise-level API development, and security enhancements, further leveraging CI/CD, containerization, and serverless technologies in both Microsoft Azure and AWS environments. Adept in applying design patterns and software engineering principles like CQRS, DDD, and the Akka.NET actor model to build robust and fault-tolerant systems.
Software engineer with a Bachelor's degree in Computer Science from Illinois State University, exhibiting a solid grasp of programming methodologies and a 3.1 GPA. Accumulated over four and a half years of professional experience in web development, specializing in technologies such as Vue.js, Joomla, PHP, and cloud computing with AWS. Demonstrated proficiency in deploying complex applications to Kubernetes clusters and optimizing web content. Showcased commitment to continuous improvement by contributing to open-source projects and designing tools like a real-time log analyzer with NUXT.js and a Laravel command-line tool. Robust technical skill set includes JavaScript, PHP, Python, Java, Swift, Rust, alongside tools like GitHub, NoSQL, and REST APIs, ensuring the engineer is well-equipped to tackle a diverse range of software challenges and contribute significantly to any development team.
- 10+ years in software quality engineering, automation testing, and SDET. - 4 years of experience with Python for automation development, scripting, and testing. - Deep skills with Java, Javascript, Typescript, PHP, Groovy, Swift, Kotlin, Ruby, and Go. - 5 years of expertise in mobile test automation using Appium. - Skilled in using Robot Framework for scalable test automation, focusing on RPA and API testing to streamline workflows. - 8 years of experience with Selenium/Selenide for web automation. - Extensive work with relational and NoSQL databases, including PostgreSQL, MySQL, MongoDB, and structured data formats like CSV/XML. - Strong background in CI/CD automation, including Jenkins, Docker, Docker Compose, CircleCI, and Kubernetes. - Experience with various QA tools such as Cypress, Cucumber, Playwright, WDIO, Browserstack/Lambdatest API, REST Assured, Postman, Axios, SOAP, JUnit/TestNG, PyTest, Allure reports, ReportPortal, Guava, AutoIT3 etc. - Created custom automation frameworks (Cypress-based) and migrated legacy QA systems, including CMS. - Experienced in API testing with GraphQL and RESTful services. - Testing techniques: Black-box (BVA, EP, CE, EG), Grey-box (pairwise, traceability matrix, decision tables), and White-box testing (statement analysis). Smoke/Regression/Release testing. - Test strategies development, with test plans, test cases etc. - Documentation, test reporting & analysis creation & maintenance.
- QA Engineer with a strong analytical background. Commercial experience since 2019. - Hands on on both Mobile (iOS and Android native applications) and web applications. - Proficient in employing OS emulation tools like BrowserStack and Azure Storage Emulator, and Remote Test Lab. - Expertise includes hands-on experience with Windows, Android, iOS, HTML, CSS, SQL, and managing databases using MS SQL. - Demonstrates comprehensive abilities in web and mobile application testing, front-end, back-end, and API testing, and database management: Postman, Swagger, and TestRail.
- Having over 25 years of experience as a Senior Software Solutions Architect, Hands-on Technical Team Leader, Full Stack Software Engineer, Business Intelligence (BI), and Applicative Database Administrator (ADBA) - Engineer with extensive experience in software development, demonstrating proficiency in multiple programming languages, including Java, C#, and Python. - Proficient with modern software development methodologies such as Agile and Scrum, ensuring project delivery aligns with business requirements and timelines. - Strong background in computer science with a focus on developing scalable and efficient code, contributing to robust software architecture. - Experience in full software development life cycle (SDLC), including requirements analysis, design, implementation, testing, and maintenance. - Expertise in applying best practices and patterns in software engineering to produce high-quality and reusable code. - Demonstrated success in past projects by optimizing system performance and enhancing user experience through innovative technical solutions.