Hire Vetted Web Application Engineers at Upstaff - Page 11
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.
Web Application
All
Web Application
Data and Analytics
Cloud and Operations
Mobile Application
Blockchain
Design and Creative
Digital Platforms
Quality Assurance
Project Management
Desktop Application
Scripting and Automation
Marketing and SEO
Embedded Systems
Writing and Translation
Low-Code and No-Code
GameDev
Industrial Engineering
HTML
CSS
JavaScript
Python
The engineer has a proven track record as a Junior Technical Consultant in SAP B1 at Edel Tech, adept in crafting complex reports, layouts, and SQL queries for enterprise applications. Garnering a commendable 81.21% in BCA from Solapur University, the candidate boasts strong programming proficiency in HTML, CSS, JavaScript, Java, and Python, and is well-versed in database management with SQL and HANA. The engineer has demonstrated skills in various tools and technologies such as HANA, SSMS, VS Code, and Eclipse, with a solid foundation in unit testing and agile development methodologies. Through leading projects like a Vehicle Rental System and a Hotel Management System, the candidate effectively combined web development and backend process optimization. This software engineer's adaptability, problem-solving skills, and technical expertise make them a valuable asset poised for contributing to the success of a future employer.
Django REST framework 3yr.
UML 3yr.
VBA 3yr.
SAP Automation Training
Software engineer with hands-on experience in Python, Django, HTML, and CSS, adept at full-stack web development. Proven track record with a recent internship at CODECRAFT INFOTECH where practical application of E-commerce web application development was achieved. Robust educational foundation highlighted by an intern instructor role in Python and Django at Ahub Technologies Ltd. Certified in Information Technology with solid understanding of computer hardware and software from Tenim Press Business Center. Skilled in Excel, CorelDraw, and E-commerce applications, with a focus on training and skill development at Ahub Plateau. Looking to apply strong problem-solving skills and technical expertise in Python Developer and Graphic Designer roles.
Python 10yr.
Django REST framework 10yr.
JavaScript 10yr.
React 7yr.
TypeScript 5yr.
Senior Software Engineer with a BSc in Computer Science and over 10 years of experience specializing in Python, Django, JavaScript, React, TypeScript, and cloud platforms like AWS and Azure. Demonstrated ability in creating scalable microservice architectures and developing high-performance backend services, with a keen eye for front-end user experiences. Proficient in deploying applications using CI/CD pipelines and proficient in database management with systems such as PostgreSQL. Successfully evolved ML workflows in FinTech, eCommerce, and AI, enhancing operations and boosting performance.
JavaScript
TypeScript
Python
SQL
C/C++/C#
The engineer is a proficient Full-Stack Developer and R&D Engineer with a core focus on cutting-edge technologies encompassing JavaScript, TypeScript, Python, SQL, and C++. They have demonstrated expertise in frameworks and technologies like NestJS, Node.js, React.js, Next.js, Blockchain, and Cosmos SDK, coupled with strong database skills in PostgreSQL, MySQL, Redis, and LevelDB. With extensive hands-on experience in DevOps & tooling such as Docker, Git, Linux, Prometheus, and Grafana, the engineer has successfully designed and developed high-availability full-stack applications. Their professional experience includes leading feature development to shorten time-to-market and significantly improving system performance and stability through strategic optimizations. The engineer's deep understanding of RESTful APIs, microservices architecture, and workflow orchestration underscores a commitment to technical excellence in software development practices. Notable achievements include architecting critical blockchain integrations and real-time data streaming functionalities for varied user-intensive platforms. Holding a B.Tech in Computer Science from Medicaps University with a notable academic record further anchors their theoretical understanding and practical application of software engineering principles, securing the foundation for continued professional growth and contribution to technology innovation.
React 6yr.
Node.js 6yr.
Solidity 5yr.
Next.js 4yr.
Innovative Full Stack Web Developer with 6+ years of experience building responsive web applications and 3+ years delivering decentralized applications (dApps) across EVM and non-EVM chains. Proven ability to integrate smart contracts, optimize wallet connectivity (ConnectKit, wagmi, Viem), and deploy scalable backends on AWS. Strong foundation in JavaScript/TypeScript, React, Node.js and DeFi protocols like Uniswap, Aave, and Curve. Experienced in secure, performant infrastructure design across both centralized (AWS) and decentralized (IPFS, Fleek) environments.
FDD
Unreal Engine
NestJS
AWS
Ant Design
Senior Backend Software Engineer with over 5 years of experience in software development, specializing in system architecture and backend solutions across various industries. Holds a B.Sc in Computer Science and professional certifications such as Microsoft AZ 900 and an IBM mastery award. Expertise in developing asynchronous backend systems using NestJS, enhancing application performance with technologies like AWS SQS, Lambda, and implementing multi-queue architectures. Proficient in building scalable microservices with integrated payment and analytics features, utilizing Stripe API, and blockchain technology. Demonstrated capability in optimizing APIs, designing serverless architectures, enabling continuous integration/deployment, and ensuring system compliance and security. Strong proponent of best practices in software development lifecycle, possessing hands-on experience with Kafka, gRPC, Kubernetes, Elasticsearch, and CI/CD pipelines.
Solidity 6yr.
NestJS 6yr.
TypeScript 6yr.
EVM 5yr.
Zero Knowledge 3yr.
Software engineer with over 5 years of development experience, specializing in blockchain platforms, DeFi, and DApps. Demonstrates expertise in Ethereum ecosystem (DEX/CEX integrations, GameFi, lending, RWA, wallets, ZK systems), and diverse blockchain technologies such as Bitcoin, Stellar, and StarkNet. Key competences include Solidity development, smart contracts audit, crosschain NFT systems, and proposing standards like ERC-8006. Possesses advanced knowledge in backend engineering utilizing technologies like Node.js, Python, and .NET, with a strong foundation in computer science from Kharkiv National University of Radioelectronics. Skilled in Full SDLC, devises encryption solutions (zk-proof, homomorphic), and excels in developing auxiliary tooling and technical documentation. Active in OSS, contributing to security (Slither, Echidna, Manticore, Mythril) and infrastructure projects (AWS, DigitalOcean, Heroku).
Salesforce
CI/CD
Mulesoft
B2C Commerce Cloud
- 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.
JavaScript 9yr.
Node.js 6yr.
Ruby 6yr.
Angular 5yr.
React 3yr.
ASP.NET MVC 10yr.
MVC 10yr.
C/C++/C#
JavaScript
ASP.NET Core Framework
Accomplished ASP.NET full-stack developer with over 10 years of experience, specializing in ASP.NET, MVC, and ASP.NET Core. Expertise in C#, JavaScript, and front-end technologies like HTML, CSS, and React.js. Proficient in database management with MSSQL, PostgreSQL, and Oracle. Strong track record in software analysis, design, and project management, including leading projects for government and banking sectors. Education in IT engineering enhanced by practical application in software development. Recognized for advanced problem-solving skills and commitment to continuous professional development.
Node.js
React
- 3+ years of experience in the IT industry
- Core technology stack is AWS, Node.js, Python
- Actively working with serverless architecture AWS (Lambda, Cognito, VPC, Security Group, EC2, RDS, API Gateway, CloudFormation, SES, SNS, S3, Amazon Timestream, IAM, LightSail)
- Intermediate English
- Available ASAP
SDLC
API
GCE
Data Lake
Senior Software Engineer with over a decade of expertise in designing, developing, and managing software solutions. Specializes in PHP, .NET, Python, Java, alongside advanced knowledge in AWS, Terraform, and CI/CD tools. Proven record in building scalable payment systems, e-commerce platforms, and cloud applications. Demonstrates strong leadership in driving technology strategy and fostering innovative solutions with effective use of DevOps practices to enhance deployment efficiency. Holds a substantial education in computer science complemented by professional certifications in DevOps and Full-stack Development. Experienced in API development, system security, and database management with notable project accomplishments in payment integration and systems automation.
PHP 4yr.
JavaScript 4yr.
Symfony 4yr.
React 3yr.
TypeScript 1yr.
Software engineer with over 4 years of experience in full-stack development, specializing in PHP, Python, C#, .NET, Golang, JavaScript, and TypeScript. Holds a Master’s degree in Business Computing, Software Engineering, and AI, with strong expertise in frameworks such as Symfony, Laravel, Django, React, and Vue.js. Skilled in cloud infrastructure deployment (AWS, OVH, Docker, Kubernetes), API design (REST, OpenAPI, GraphQL), and performance optimization using Elasticsearch and Redis. Proficient in software architecture principles including SOLID, TDD, and design patterns, with hands-on experience in SaaS, ERP, CRM, IoT, and mobile applications. Demonstrated ability in business process automation and long-term project maintenance across diverse domains.
Java
Angular
- 6 years of experience in developing web applications using cutting-edge technologies
- Obtained a lot of experience in AngularJs, Angular2+, Microfrontend, Microservices, Java, Spring, JS/TS, HTML, CSS, and other related technologies
- Experience in leading teams of 5 more people
- Main subject areas include healthcare, government projects, insurance, etc.
- Upper-Intermediate English
- Available ASAP
TypeScript 7yr.
JavaScript 7yr.
Azure 3yr.
React 3yr.
Proven Full-Stack Engineer with over 7 years of experience in building robust, secure, and scalable systems. Has a strong background in team leadership and project management, ensuring timely delivery within scope and budget. Holds a Master's degree in Computer Engineering complemented by advanced technical skills across a myriad of technologies including AWS, TypeScript, JavaScript, React, Node.js, and Microservices. Experienced with a variety of databases such as SQL, MongoDB, and DynamoDB, and tools like Docker, Kubernetes, and Terraform for DevOps. Demonstrates a keen ability to integrate third-party services and has a solid foundation in continuous integration and delivery practices.
Node.js
React
- 4+ years of professional experience using front-end and back-end technologies
- Front-end: HTML, CSS, BEM, SASS/SCSS, Bootstrap, Webpack, Material-UI, ReactJS, Redux, Redux-Saga, Jest, Lodash, React-Hooks, React-Query
- Back-end: NodeJS (Express), Nest.js, REST API, Docker, OAuth, Postgres, TypeOrm, Sequelize
- Upper-Intermediate English level
- Available in 2 weeks after approval for the project
JavaScript 5yr.
Node.js 5yr.
React 5yr.
TypeScript 5yr.
- Engineer with 5+ years of experience specializing in JavaScript (Node.js, React.js) and TypeScript, delivering scalable backend services and responsive frontend applications.
- Proficient in modern frameworks and tools including Nest.js, Express, Next.js, GraphQL, Docker, AWS (Lambda, Step Functions, SQS), and CI/CD pipelines.
- Strong expertise in database management with PostgreSQL, MongoDB, DynamoDB, and Redis, implementing event-driven architectures and microservices.
- Demonstrated ability to optimize performance, enhance security (AWS Secrets Manager), and integrate complex third-party APIs across diverse domains such as sports streaming, finance, task management, and fitness platforms.
- Advanced academic background in Software Engineering and Cybersecurity, with ongoing PhD studies, underpinning a solid foundation in software development lifecycle, best practices, and engineering principles.
$10000/month
Ruby on Rails 9yr.
● 9 years of Ruby on Rails development
● Extensive knowledge in web and mobile development lifecycle
● Skilled in agile and waterfall project management methodologies, SCRUM experience ● Accountable, communicable, dedicated team player, self-motivated, conscientious, creative individual, well-experienced in troubleshooting, able to learn quickly and effectively ● Upper-Intermediate English
● Computer Systems Analyst (Master's degree)
Java
JavaScript
React
- 6+ years of experience in the IT industry
- Intermediate English
- Available 2-4 weeks
PHP 5yr.
JavaScript 5yr.
MySQL 5yr.
- Over 15 years of professional experience in web development with expertise in PHP, MySQL, JavaScript, HTML, and CSS, delivering robust back-end solutions and system maintenance.
- Strong foundation in Computer Engineering and Computer Science, holding a Bachelor’s degree and an Associate of Science degree, ensuring solid technical and theoretical knowledge.
- Proven ability to design and deploy critical database systems, including a humanitarian regional air transport management system, demonstrating skills in database design and application development.
- Experienced in full software development lifecycle (SDLC) practices, including system design, development, deployment, and maintenance across diverse sectors such as humanitarian aid and education.
- Bilingual proficiency in Portuguese and English, facilitating effective communication in international and remote work environments.
Ruby on Rails 6yr.
React 2yr.
Ruby
- Senior Software Engineer/Team Lead (6 years of experience)
- Software engineer ready for any team or business need with strong IT knowledge and natural leadership talents.
- Dedicated to enabling team members to exceed business targets.
- Initiating projects, setting up baseline architectures, finalizing deployment procedures & end to end development
including managing costs, schedule, and performance.
- Managing multiple teams to lead them to outperform others and to give positive outcomes in terms of successful milestones deliveries and project completion.
- Achieved project deadlines by coordinating with contractors to manage performance.
- Monitored automated build and continuous software integration process to drive build/release failure resolution.
- Wrote code and developed tools and integrations to meet cross-platform user needs.
- Wrote and maintained custom scripts to increase system efficiency and performance time
React
Node.js
- 7 years of professional experience using front-end and back-end technologies
- Front-end: deep knowledge of native JavaScript (basics, OOP, DOM, events, asynchrony, AJAX, event loop), ES6+, jQuery and other libraries (Moment.js, etc.), Typescript, React, React Native, Redux, other React-tools (React-router, Redux-Saga, Reselect, etc.), HTML5, CSS3, LESS, SASS, Bootstrap
- Back-end: Node.js, Nest.js, Express.js, Passport.js, RESTful API, socket.io
- Modular, scalable, and reusable code, tests, project deployment
- Upper-Intermediate English
- Available from 01.06.2022
Node.js
React
- 4+ years of professional experience using front-end and back-end technologies
- Back-end: NodeJS, Express, Nest, REST API, Docker, Google, Facebook auth, Postgres
- Front-end: React, Redux, Redux-Thunk, React-query, Webpack, Material-UI, Vite, Jest, Lodash, HTML, CSS, BEM, SASS/SCSS, LESS, Bootstrap
- Intermediate English
- Available in 2 weeks after approval for the project
JavaScript 4yr.
React
Node.js
Express
MongoDB
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.
Python 10yr.
React 7yr.
Azure 5yr.
Java
- 22+ years experience in the IT industry as a back-end engineer;
- 22 years of experience working with Java;
- 10 years of experience working with Python;
- 5 years of experience working with Microsoft Azure;
- 7 years of experience working with React;
- Deep skills working as a full-stack developer;
- Strong experience working with Oracle Database;
- 2+ years of experience working with Zeebe;
- Good skills with Camunda;
- Good skills with Scala;
- Experience working with JavaScript;
- Deep abilities working with Angular;
- Experience working with RabbitMQ;
- 2 years of experience working in a multinational financial services company;
- Good knowledge of working with Microsoft SQL Server, MySQL, Oracle Database, SQL, MongoDB;
- Deep skill working with AWS (ElasticSearch, EC2, Lambda, S3, EKS);
- Good abilities with Google Cloud Platform (GCP);
- Proficient in using Docker, Kubernetes, and Kafka;
- Fluent in English, Intermediate German, and Intermediate French.
AngularJS
- 12+ years of experience in the IT industry
- 10 years of experience with Angular.JS
- Advanced English
- Available ASAP
$16/hr
$2640/month
$2640/month
AngularJS 2yr.
React 2yr.
- 6+ years of experience in the IT industry
- 5+ years of experience with Angular
- 2 years working with Angular.JS 1.x
- Fluent English
- Available ASAP
React
Node.js
- 3 years of professional experience using front-end and back-end technologies
- Front-end: React, Redux, React query, Context API, React Hooks, HTML, CSS(SCSS), BEM, MaterialUI, AntDesign, Firebase, Angular 7+, RxJs
- Back-end: NodeJS (Express, NestJS), REST API, Docker
- Knowledge of PostgreSQL, MongoDB, MySQL databases
- Intermediate English
- Available ASAP
Java
Python
React
Node.js
AWS
Software engineer with over 5 years of full-stack development experience in healthcare, aviation, and analytics domains. In-depth knowledge of cloud-native technologies, microservices, and scalable architectures, backed by a Master of Science in Information Systems. Demonstrated ability to integrate AI models and deliver high-impact automation workflows. Proficient in Java, Python, React, and Node.js, complemented by strong experience with AWS, GCP, Docker, Kubernetes, and CI/CD implementations. Remarkable accomplishment includes the development of AI-powered microservices that increased system accuracy, and the execution of end-to-end CI/CD workflows for enterprise-grade applications.
Node.js
React
- 4 years of professional experience with front-end and back-end development
- Back-end: NodeJS (Express, Nest), REST API, Docker, Google, Facebook auth, Postgres
- Front-end: HTML, CSS, BEM, SASS/SCSS, LESS, Bootstrap, Material-UI, ReactJS, Redux, Redux-Thunk, React-query, Webpack, Vite, Jest, Lodash
- Available in 1 week after approval for the project
React
JavaScript
- Experienced Front-End Developer with 4 years of background in front-end development, building scalable, high-performance web applications.
- Experienced in React, Angular, and TypeScript state management (Redux Toolkit, RxJS), API integration (GraphQL, REST), and performance optimization for enhanced user experience.
- Skilled in designing responsive UIs (Material-UI, SCSS) and implementing secure authentication systems (JWT, role-based access control).
- Adept at performance optimization, reusable component development, and real-time data visualization.
- Strong collaborative mindset, working closely with UI/UX designers, backend teams, and stakeholders to deliver seamless and efficient front-end solutions.
Python
Java
JavaScript
Node.js
FastAPI
Computer Science graduate with a record of developing full-stack systems to combat web misinformation, leveraging technologies such as LangChain, FastAPI, and MongoDB. Engineered secure REST APIs in Node.js with JWT for the SplitSmart App, optimizing database performance and spearheading documentation. Conceived a mental health mobile app with real-time chatbot support in Flutter, demonstrating user-experience acumen. Compiled practical experience as a Mobile Money Agent, evidencing proficiency in transaction handling and regulatory compliance. Academically grounded from the University of Malawi, with engagement in leadership roles and proactive community development. Well-versed in Python, Java, JavaScript, along with AI/ML, this candidate is poised for tackling complex challenges in backend development, API design, and system integration.