Hire Vetted Web Application Engineers at Upstaff - Page 23

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.
PHP
JavaScript
...
- I am looking for opportunities to continue to develop as a software engineer. - I have 10 years of practical experience with web applications development. I plan to use my strong skills, knowledge, and programming experience to improve existing and create new high-quality software. - Intermediate English
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Middle
Montreal, Canada
PHP
Laravel
...
- 5+ years experience in PHP and Web development. - Has a strong background in PHP development, particularly with the Laravel framework - Proficient in PHP, Laravel, HTML, CSS, JavaScript, jQuery, Silex, and MySQL - Previously, has experience as Symfony, Drupal Engineer - Upper-Intermediate English
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Architect
Armenia
PHP 12yr.
Symfony 2yr.
...
- 4+ years of experience with a can-do attitude, phenomenal time management skills, and a strong user focus. - Has gained experience in HTML, JS, AJAX, XML, ColdFusion, MySQL, MariaDB, PHP, Magento, Prestashop, Drupal, and such frameworks as CakePHP, Zend, Yii, Laravel and Symfony.
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Senior
Ukraine
.NET
Azure
Azure Logic Apps
...
- Software Engineer with 4+ years of extensive experience in developing and maintaining complex systems across various domains, including business information, media, software, hi-tech, retail, and distribution - Proven expertise in backend and frontend development, database management, cloud services, and API integrations. - Skilled in modern technologies such as .NET, Azure, AWS, React, Angular, and more. - Has 2+ years of experience with Logic Apps. - English level: Upper-Intermediate
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Clean Architecture
C
.NET
RESTful API
Web Services
...
Software engineer with over 18 years of experience specializing in backend development using C# and .NET technologies. Key achievements include architecting microservices solutions and integrating third-party applications with enterprise systems. Holds a Bachelor’s degree in Computer Science and is in the process of completing an M.C.S. in Advanced Software Architecture. Proficient in a range of technologies, including SQL Server, Oracle, Azure, Sitecore, and front-end technologies like HTML, CSS, and JavaScript. Experienced in Scrum, RUP, CMMI, ITIL methodologies, with a track record of improving performance and efficiency in software solutions, evidenced by increasing transaction throughput in one project from 20 to 200 per second.
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Expert
Bogota, Colombia
Node.js 2yr.
React 2yr.
CSS 2yr.
Tailwind CSS 2yr.
TypeScript 2yr.
...
Software Engineer with hands-on experience in the creation and maintenance of web applications, focusing on technologies such as NodeJS, ReactJS, and various database systems. Skilled in full-stack development, they have a strong grasp of both frontend and backend technologies, including the use of JavaScript, TypeScript, and modern frameworks like NestJS, ExpressJS, and Next.JS. Their technical expertise is backed by formal training in Frontend and Backend development from Platzi, ensuring a solid foundation in coding best practices and software design principles. With direct experience as a Freelance Developer and an educator, this engineer not only brings valuable coding skills to the table but also strong communication abilities and the capacity to work collaboratively in multicultural environments.
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Junior
Chivilcoy, Argentina
React 5yr.
AWS 4yr.
Node.js
PHP
Python
...
Full Stack Engineer with over 4 years of professional experience and a strong educational background in Media Technologies and Leadership. Skilled in front-end and back-end development using technologies such as React.js, Node.js, Next.js, TypeScript, PHP, and Python, complemented by expertise in databases like MongoDB and PostgreSQL. Proficient in a variety of modern tools and platforms including AWS, Google Cloud, Docker, and CI/CD practices. Recognized for transforming business requirements into scalable digital solutions and optimizing web applications for improved SEO and performance.
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MS Dynamics 365
Power Apps
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- Middle software developer with 3 years of experience developing, installing, testing, and maintaining software systems. - Skilled in various programming languages and technologies, including C#, ASP.NET Core, Windows Forms, C++, ReactJS/TS, JavaScript, Dynamics 365 CE, Power Apps, Model Driven Apps, HTML, CSS, Power Apps, Ajax, PHP, and Java Frameworks. - Proficient in using development tools such as Git, GitHub, Visual Studio, VS Code, PHPMyAdmin, IntelliJ IDEA, and Android Studio. - Experienced in working with databases like MS SQL Server, MySQL, and MongoDB. - Familiar with SCRUM/Kanban methodologies and proficient in Microsoft Windows operating systems. - Successfully completed projects involving CRM systems development, microservices architecture, and web-based multi-user solutions. - Demonstrated skills in bug fixing, code development, and task assessment. - Upper-Intermediate English
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Python 5yr.
Django
Flask
FastAPI
JavaScript
...
With over 5 years of experience in software development, the engineer exemplifies a strong command of backend technologies, specializing in Python and its frameworks Django, Flask, and Fast-Api. Proven expertise in integrating complex databases and deploying scalable solutions on AWS and GCP highlights their proficiency in the SDLC and security measures against vulnerabilities. Their contributions to open-source projects and ability to lead teams, alongside a skill set that includes PostgreSQL, JavaScript, React.js, Docker, and Kubernetes, position them uniquely for challenging backend roles. This candidate's technical acumen and record of streamlining workflows and project enhancements make them a strong contender for a senior software engineer position.
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AEM
...
- Having total work experience of 10+ years in Java/J2EE and Adobe CQ5. - Excellent experience in JCR, CRX, and OSGI technologies. - Expert in developing custom CQ components and modifying the out-of-the-box features. - Worked across the whole SDLC including analysis, design, coding, and unit testing. - Worked in Waterfall and Agile Methodology. - Upper-Intermediate English - Available since April 25th
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Senior
Delhi, India
HTML5
CSS3
SASS/SCSS
Gulp-Less
Webpack
...
Software engineer with over five years of experience as a front-end developer, specializing in responsive web development and the implementation of web applications. Proficient in HTML5, CSS3, SASS/SCSS, and JavaScript, with a foundational understanding of React. Experienced with front-end build tools like Gulp and webpack, as well as version control systems including Git and platforms like Gitlab and GitHub. Demonstrates strong problem-solving skills in client service roles and is well-versed in SDLC practices and compliance protocols, including KYC checks and CDD reviews. Holds an ongoing education in front-end development, with a commitment to continuous improvement and the application of modern development methodologies and patterns.
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JavaScript 8yr.
HTML5 8yr.
CSS3 8yr.
Python
...
- Extensive Full-Stack Development Experience: Over 8 years of experience in developing robust web applications using JavaScript, TypeScript, and Python. Demonstrated expertise in NodeJS, Angular, and experience with Python-based frameworks (Django, Flask) aligns with the desired skill set for AI Bot enhancement. - AI & Machine Learning Acumen: Keen on AI and Robotics projects, with a solid foundation in implementing machine learning models, which can be leveraged to enhance AI Bot capabilities, particularly in areas of speech recognition and NLP. - Proficient in Modern Web Technologies: Skilled in TypeScript, familiar with React and Next.js through self-study and professional development. Adaptability to incorporate Tailwind CSS and FastAPI for rapid, responsive design. - Innovative Problem Solver: Proven track record of debugging and optimizing complex systems. Experience in unit testing and code quality control ensures the ability to identify and fix issues impacting bot performance. - Collaborative Team Player: Effective in team settings ranging from 3 to 15 members. Experienced in leading and collaborating on projects, ensuring seamless integration of new features and technologies.
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Senior
Kharkiv, Ukraine
PHP
Laravel
Drupal
...
- About 10 years of experience in development- Upper-Intermediate English- Ready to start ASAP- Available Part-time - No vacation plans- Location: Moldova
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Senior
Republic of Moldova
Python
...
- Python Engineer with 5+ years of experience designing, developing, and maintaining web applications and services across diverse industries (Financial Services, Healthcare, E-commerce, Education). - Proficient in both full-stack and backend development utilizing Python frameworks like Django, FastAPI, and Nameko. - Designed and implemented microservices for financial trading platform, healthcare platform, and more. - Extensive experience with relational (MySQL, PostgreSQL) and NoSQL databases (MongoDB, Redis). Optimized queries using Django ORM and SQLAlchemy. - Utilized AWS S3 for storage and integrated with various cloud services (Stripe, Auth0, Pipedrive). - Strong computer science expertise and commercial experience in web services architecture and development - Experience with scrapers, extracting data from sites, serializing and validating data
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Python 5yr.
Banking
...
Software engineer with a comprehensive 5-year background in developing applications across Fin-tech, Management, and E-commerce domains. Deeply versed in a broad tech stack, including advanced proficiency in Python (5 years), JavaScript (3 years), and TypeScript (3 years), with solid experience in Django, React, and cloud services like AWS and Azure. Demonstrated expertise in DevOps and CI/CD methodologies is evident from hands-on Kubernetes and Terraform experience. Proven track record of optimizing application performance and infrastructure automation, leading to significant reductions in processing time, and enhancement of deployment reliability. The engineer's problem-solving acumen and ability to drive efficiency improvements are reflected in the development of feature-rich platforms and efficient system architectures.
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Senior
Georgia
Python 6yr.
Banking
...
Highly experienced Software Engineer with a solid background in Computer Science and Software Engineering, boasting 6 years in the field with a focus on the Fin-tech, Healthcare, and Agriculture domains. Demonstrates proven expertise with key technologies, including Python, JavaScript, TypeScript, and has a strong grasp on both frontend and backend development (React, Django, FastAPI). Accomplished in cloud services Azure and GCP, with a track record of optimizing performance (e.g., AWS RDS tuning resulted in a 20% response time improvement). Mastery in DevOps practices, evidenced by efficient Kubernetes deployments that enhanced speed and reliability by 10%. Hands-on experience with several databases and has successfully integrated and migrated large codebases to TypeScript, reducing runtime errors by 30%. This advanced skill set places the candidate in a prime position to tackle complex software engineering challenges and contribute effectively to a tech team.
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Senior
Poland
Rust 3yr.
TypeScript 2yr.
Solidity 2yr.
...
Blockchain Developer and Software Engineer with over 5 years of hands-on experience. Skilled in multiple key programming languages including Rust, Solidity, Python, JavaScript, and TypeScript, and proficient in English with a B2 level. Holds a comprehensive education in Computer Science and Software Engineering. Technical expertise is demonstrated in diverse blockchain environments like Ethereum, Polygon, and Solana, including advanced skills in smart contracts development, security optimizations, and integration of various blockchain technologies. Proven track record in backend development with frameworks such as Django and Node.js, cloud services like AWS, and proficiency in DevOps tools such as Docker, Kubernetes, and Terraform. Successfully improved deployment speeds by 40% through Helm charts and bolstered smart contract security to mitigate 95% of exploit vectors. Combines a passion for programming with effective leadership and project management abilities which contributes to technological advancements and project success.
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Senior
Georgia
React
React Native
TypeScript
Node.js
Express
...
Software engineer with a Bachelor's degree in Computer Software Engineering and 9 years of full-stack development experience. Expertise in React, React Native, Node.js, TypeScript, and AWS, with a record of developing SaaS fintech platforms and efficient CI/CD pipelines. Proficient in performance optimization, microservices architecture, and Web3 integrations. Adept in Agile methodologies, TDD, and advanced search implementations.
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Senior
Gdansk, Poland
Ruby
Node.js
Go
PHP
...
Expert
New York City, United States
JavaScript 4yr.
Node.js 4yr.
Redis 4yr.
PostgreSQL 3yr.
Firestore DB
...
Software Engineer with a Computer Science background and 4+ years of full-stack development experience, specializing in building high-performance applications within the FoodTech, Financial, and Gambling domains. Expertise in JavaScript and TypeScript, alongside proficiency in backend technologies such as Node JS, Nest JS, and various databases including MongoDB, PostgreSQL, and MySQL. Adept in cloud services, particularly AWS, and DevOps tools like Docker and GitHub Actions. Demonstrated success in developing microservices architectures, implementing CI/CD pipelines, and managing scalable cloud infrastructure. Recognized for optimizing systems, resolving complex problems, and automating processes through robust technical solutions.
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JavaScript 5yr.
Node.js 5yr.
AWS EC2 2yr.
MongoDB 2yr.
Firebase 1yr.
...
Skilled Full Stack Developer with 5+ years of experience in software engineering, specializing in e-commerce domain. Technical proficiencies include JavaScript, TypeScript, Node.js, and Nest.js, with a strong foundation in backend development and cloud services (GCP, AWS). Expertise in building scalable applications using databases like Redis, PostgreSQL, MongoDB, and MySQL. Demonstrated success in utilizing DevOps tools such as Docker and orchestrating CI/CD pipelines with GitHub Actions. Involved in full SDLC, agile methodologies, and has contributed to complex projects by developing RESTful APIs, microservices, and optimizing application performance.
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Node.js
JavaScript
TypeScript
NestJS
React
...
- Software Engineer with 7+ years of experience, holding a degree in Computer Science and Software Engineering with a focus on full-stack development across various domains, including finance, entertainment, and e-commerce. - Highly skilled in JavaScript and TypeScript with extensive backend and frontend expertise involving Node JS, React JS, and Next JS. - Proven proficiency in data management using PostgreSQL, Redis, and MySQL. - Demonstrated Cloud technologies and DevOps capabilities with AWS, Firebase, Docker, and GitHub Actions. - Accustomed to designing systems and leading projects to successful completion, as evidenced by work on a recruiting platform, online casino, and management applications.
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Architect
Poland
React Native
React
...
- A skilled Mobile Developer with 7+ years of experience - Strong knowledge of Javascript, TypeScript, React.js, React Native, Redux (Thunk, Saga), MobX, and much more - Has strong critical thinking skills, the ability to navigate various data environments, hands-on technical ability in data, and a drive to understand clients’ business - Connects with Product and Engineering teams to produce instrumentation to generate insightful measurements on new and existing products - Works across departments and collaborates with business managers, systems architects, engineering delivery teams, project managers, QA, and operations teams - Upper-Intermediate English
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Java 3yr.
AuraQuantic 1yr.
Business Process Model and Notation
...
- A software engineer with 3 years of experience specializing in web application development and business process modeling. - Has 1+ years of experience with business process modeling using AuraQuantic in a banking project. - Has experience with Cadence. - Skilled in Java, JavaScript, and TypeScript, backed by deep knowledge in Spring Framework, Hibernate, PostgreSQL, and AWS services. - Key projects include developing a banking document management system as well as managing cloud provider infrastructures. - Recognized for implementing robust authentication systems, optimizing database queries, and enhancing user experience through meticulous UI design.
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JavaScript 3yr.
React 3yr.
TypeScript
...
3 years of experience in development using JavaScript, React.js, react-redux, redux-thunk, TypeScript, HTML, CSS, SCSS , Git. Success-driven team player who continually meets and exceeds goals.
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Middle
Minsk, Belarus
PHP 7yr.
JavaScript 6yr.
TypeScript 3yr.
Solidity
Vanilla JS
...
-Software Engineer with 7 years in the tech industry, with a robust computer science and software engineering background. - Strong knowledge of Vanilla PHP and JavaScript and front-end and back-end development skills. -Expertise spans prominent domains such as eCommercee& retail, Marketplace, Blockchain, Entertainment, Game dev, Social Network, Healthcare, Analytics, Education -Incorporated advanced technologies like Web3.js and Elasticsearch into projects, demonstrating a balance of front-end and back-end skills. -Capabilities extend beyond app architecture, database design, and optimization with MySQL and other databases. -Proven track record of leveraging Docker and Nginx for DevOps, underpinned by a solid grasp of Git. -Has effectively fulfilled the role of Team Lead, showcasing skills in mentorship, code review, and workflow optimization.
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JavaScript 6yr.
TypeScript 5yr.
Angular 5yr.
RxJs 5yr.
Angular Material UI 5yr.
...
Software Engineer with 5+ years of extensive experience in front-end development, offering a strong foundation in software engineering and programming principles across multiple platforms. Expertise in JavaScript and TypeScript with a complete command of Angular and related technologies like RxJS, NGRX, and Angular Material. Holds a track record of leading small teams and successfully managing full software development lifecycle for various projects. Demonstrated ability to optimize application performance, manage CI/CD pipelines, and integrate analytic tools to enhance user experience. Technical acumen accentuated by hands-on experience with industry-standard tools such as Git, Jira, and Azure DevOps. Known for excellent problem-solving skills and ability to handle complex development tasks, bringing value to any team through a diligent work ethic, collaborative approach, and forward-thinking mindset.
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Senior
Warsaw, Poland
Go
...
- Software Engineer with more than 5 years of commercial experience in software development - Experience in developing and using Golang for more than 4 years - Created projects from scratch, and set up CI/CD via GitHub Actions - Experience in MVC that uses Domain-Driven Design architecture, CQRS, Event Sourcing - Hands-on experience with third-party API integration - Upper-Intermediate English - Available from 16.02.2023
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Angular
Ionic
.NET
...
- Web and Mobile app developer with 7+ years of experience in the IT industry - Skilled in front-end and back-end development, API integration, optimization, and refactoring. - Proficient in building scalable and high-performance applications using Angular and associated technologies. - Experienced in working with databases, server-side rendering, and cloud platforms such as AWS and Firebase. - 6 years of experience with Angular - 3+ years of experience with Ionic - Upper-Intermediate English - Available ASAP
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Senior
Cherkasy, Ukraine
TypeScript 5yr.
Node.js 4yr.
Express 3yr.
AWS EC2 3yr.
NestJS 2yr.
...
Software Engineer boasting a comprehensive education from Vilnius University and BSTU complemented by a robust professional background with a focus on SaaS and IaaS development. Proficient in a wide array of programming paradigms including OOP, functional, reactive, and process programming. Skilled in Haskell, with a passion for embedding AI and extensive experience in cybersecurity and DeFi, thus reflecting a deep technical expertise. With 5+ years coding in JavaScript/TypeScript and Python, and familiarity with numerous back-end technologies and tools ranging from Node.js to AWS and PostgreSQL, this engineer exemplifies a strong command over modern development practices such as TDD and DDD. Additionally, projects reflect practical experience in data processing, AI model implementation, and system architecture design.
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SQL 5yr.
JavaScript 4yr.
Node.js 4yr.
Express 4yr.
NestJS 2yr.
...
Software engineer with 5+ years of IT experience, starting as an automated systems technician, evolving into a full-stack JavaScript developer. Excelled in backend development, legacy code optimization, and new functionality implementation in complex logistics and CRM applications. Proficient in cutting-edge JS frameworks and a multitude of databases, boasting a track record of building microservices architectures and developing scalable, fault-tolerant systems. Adept at optimizing SQL queries, integrating APIs, and crafting performant web applications with high unit test coverage. The engineer's portfolio includes delivering robust solutions for logistics, casino networks, and educational platforms, demonstrating strong problem-solving capabilities and technical versatility.
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Middle
Poland
JavaScript
Node.js
NestJS
React
Redux
...
A full stack software engineer with 4+ years of experience specializing in web development for domains such as e-commerce, adTech, and media. Expertise in JavaScript, TypeScript, and PHP with hands-on experience in key backend technologies including Node.js, Nest JS, Express.js, and Laravel, as well as front-end development with React.js and associated technologies. Proven track record in implementing complex database schemas, facilitating efficient communication with RabbitMQ, and ensuring platform security with OAuth2. Solid foundation in cloud services (AWS, GCP), DevOps (Docker), and automated testing (Jest), reflecting a versatile and adaptive technical skillset.
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Middle
Georgia
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