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.
Python 6yr.
TensorFlow 5yr.
AWS
...

- 6 years of experience - Senior Data Scientist with specialization in Machine Learning and Computer Vision - Advanced English.

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Seniority Senior (5-10 years)
Location Cyprus
Kafka
JavaScript
PostgreSQL
Node.js
TypeScript
...

- More than 5 years of experience in commercial software development; - Strong knowledge of front-end / back-end frameworks and libraries; - Experience in analyzing and building architecture, prioritizing tasks and calculating risks; - Has experience in developing blockchain-based software; - Skilled in JavaScript / Typescript,React, Redux,Node.js; - Experience in researching productivity and technical problems of production; - Upper-Intermediate English

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Seniority Senior (5-10 years)
Location Ukraine
PostgreSQL
Node.js
Vue.js
React
NestJS
...

- Well-qualified Full Stack Developer familiar with a wide range of programming utilities and languages. - Knowledgeable of backend and frontend development requirements. - Able to handle any part of the process with ease. - Collaborative team player with excellent technical abilities offering 12 years of related experience. - Knowledgeable Front End Developer adept at creating successful websites or apps that meet customer needs. - Specializing in collaborating with entrepreneurs and customers to gather requirements produce plans, and improve designs for usability and functionality. - Very proficient in VueJS, ReactJS, HTML, and CSS - Advanced English

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Seniority Senior (5-10 years)
Location Portugal
Kafka
JavaScript
NestJS
Node.js
TypeScript
...

- Full-Stack Web Developer with expertise in both back-end and front-end development - Extensive experience in all stages of the development cycle for dynamic web projects - Proficient in multiple programming languages - Has a strong understanding of software architecture and design principles - Skilled in project management, decision making and complex problem solving. Has creative and - innovative thinking, service-focused, self-development

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Seniority Senior (5-10 years)
Location Ukraine
JMeter
iOS
Android
Grafana
InfluxDB
...

- Bug’s life cycle, roles, and activities in the project team, positive/negative tests, smoke-testing, GUI, cross-browser, compatibility, black-box, white-box, gray-box, functional, non-functional, unit testing, regression testing, Mobile cross-browser testing, Mobile app testing - Creation of test plans, test cases, test suites, checklists, and bug reports. - Knowledge of Test Design techniques. - Understanding of SDLC, methodologies, and the difference between types of testing. - Hands-on experience in mobile application testing on IOS and Android operating systems. - Hands-on experience using emulators for Android and IOS e.g. Blue Stack. - Experience with Performance testing - Jmeter, BlazeMeter - Upper-Intermediate English

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Seniority Senior (5-10 years)
Location Ukraine
SDLC
...

- 5 years of experience in business analysis - Proficient in project documentation, SDLC, and requirements management - Skilled in mind mapping, UML/BPMN modeling, and prototyping - Experienced in prioritization, SWOT analysis, and stakeholders management - Strong analytical thinking and research skills - Effective communication and conflict management abilities - Knowledgeable in risk management and software development lifecycle - Quick learner, proactive, and adaptable to change - Upper-Intermediate level of spoken and written English

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Seniority Junior (1-2 years)
Location Ukraine
Node.js
...

- 3-5 years of experience in Full Stack Web Development - Strong knowledge of Node.js, JavaScript, and TypeScript - Experience with Express.js and Nest.js - Proficient in working with databases such as MongoDB, MySQL, and PostgreSQL - Familiarity with front-end technologies including HTML5, CSS3, React.js, and Vue.js - Skilled in building RESTful APIs and GraphQL - Experience with Docker and Prisma - Strong understanding of OOP and SOLID principles - Familiarity with AWS services - Good logical thinking and a team player - Intermediate English. - Availability starting from ASAP

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Seniority Junior (1-2 years)
Location Poltava, Ukraine
Node.js
...

- Developing web applications using Node.js, JavaScript, and TypeScript. - Experience with Express.js and Nest.js. - Writing tests unit and E2E - Strong knowledge of algorithms and data structures - Good logical thinking and team player. - Uper- Intermediate English. - Availability starting from ASAP

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Seniority Junior (1-2 years)
Location Zaporizhzhya, Ukraine
Node.js
...

- Experience in developing web applications using JavaScript (Node.js, React.js). - Solid understanding and knowledge of object-oriented approach, software engineering principles, and concepts. - Knowledge in development of design and development of relational databases, creation stored procedures and triggers. - Good logical thinking and team player. - Communicative, responsible, hardworking, result-oriented. - Upper-Intermediate English. - Availability starting from ASAP

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Seniority Junior (1-2 years)
Location Poltava, Ukraine
Java
...

- 3+ years of programming experience. - Participated in various programming tournaments and commercial projects. - Core expertise covers Java and everything related. - Solid experience in the design, development, and support of back-end web applications. - Experience writing desktop applications in Java. - Experience maintaining business processes. - Specializing in web-application development with Spring Framework. - Upper-Intermediate English. - Availability starting from ASAP.

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Seniority Middle (3-5 years)
Location Poland
Java 10yr.
...

- Software Engineer with over 10 years of practical development experience. - Practical experience with Java Standard Edition 7-17; Java Enterprise Edition(JPA, JTA, CDI, JMS, JSF, JAX-RS, Servlets API); - Hands on experience with Spring technological stack: Spring Core, Spring Boot, Spring Data, Spring Security; - Strong SQL knowledge and the corresponding experience with relational DBMS: Oracle, MSSQL, PostgreSQL; - Code quality assurance: refactoring, review using Crucible and Sonarqube; - Software architect skills: design of application architecture, decision-maker about technological stack; - Experience working in an Agile methodology; - Coordination of all the communications channels between the customer and team; - Development teams building, interviewing, hiring personnel; - Delivery complex software solutions for Application life-cycle management, Media and e-- - Commerce industries, Process automation, plug-in development for Atlassian products. - Intermediate English - Availability starting from ASAP

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Seniority Senior (5-10 years)
Location Poland
Python
...

- 5+ years of experience in Python development. - Proficient in Python, Bash, Groovy, Django, Django REST Framework, and other related technologies. - Strong knowledge of AWS services and architecture. - Experienced in designing and implementing RESTful APIs. - Skilled in Git and CI/CD practices. - Good understanding of testing approaches. - Bachelor's degree in computer science. - AWS Certified Solutions Architect. - Upper-Intermediate English

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Seniority Senior (5-10 years)
Location Estonia
Java
...

- 4+ years of experience in developing applications using Java and related technologies. - Good knowledge in programming JDBC, Hibernate. - Experience in using Design patterns. - Good logical thinking, self-learning, high level of responsibility. - Hard-working, result-oriented, creative and communicative, team player. - Upper-Intermediate English. - Availability starting from 18.09.2023

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Seniority Middle (3-5 years)
Location Ukraine
Java
...

- Have experience in programming Spring Framework. - Have experience with Microservices architecture. - Practice with Elasticsearch (Kibana); - Experience in the fintech sphere; - Understanding of “Clean code”; - Good logical thinking, self-learning, high level of responsibility. - Responsible, hard-working, result-oriented, creative, and communicative, team player. - Intermediate English. - Availability starting from Asap

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Seniority Middle (3-5 years)
Location Kyiv, Ukraine
Java
...

- 5 years of experience in developing applications using Java. - Good knowledge of programming JDBC, and Hibernate. - Experience in using Design patterns. - Good logical thinking, self-learning, high level of responsibility. - Responsible, hard-working, result-oriented, creative, communicative, and team player. - Intermediate+ English. - Availability starting from ASAP

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Seniority Middle (3-5 years)
Location Kropivnitskiy, Ukraine
.NET
OutSystems
...

- 10+ years experience in IT - Upper-Intermediate English

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Seniority Senior (5-10 years)
Location Guadalajara, Mexico
OutSystems
...

- Software Engineer with a broad software development experience in commercial projects. - Prefers to work in Microsoft stack but is also familiar with other environments like Outsystems or UiPath. - His command of English allows to communicate freely, as it was the default language for most of his employment. Always open to innovation.

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Seniority Senior (5-10 years)
Location Warsaw, Poland
JavaScript
TypeScript
...

- 3+ years of commercial experience in IT - Experience in developing web applications using JavaScript (React) - Deep knowledge of HTML, CSS, TypeScript - New functionality development - Communicative, responsible, hardworking, result-oriented - Experience from simple sites to huge projects for companies - Good attention to details - Good logical thinking and team play - Intermediate- English - Availability starting from ASAP

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Seniority Junior (1-2 years)
Location Dnipro, Ukraine
C++ 10yr.
Go 4yr.
Rust 3yr.
...

- Software developer (since 2002), startup experience (since2007), - Upper-Intermediate English - Available SAP

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Seniority Senior (5-10 years)
Location Ukraine
Android 8yr.
...

- 8+ years of experience with Android Development - 4+ years of experience with Kotlin - Upper-Intermediate English

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Seniority Senior (5-10 years)
Location Portugal
Android
...

- 4 years of commercial experience with Kotlin - Intermediate English

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Seniority Middle (3-5 years)
Location Tashkent, Uzbekistan
Node.js
...

- 5+ years of experience in developing web applications using JavaScript (Node.js, React.js). - Have solid understanding and knowledge of object-oriented approach, software engineering principles, and concepts. - Have knowledge in development of design and development of relational databases, creation stored procedures and triggers. - Intermediate English - Availability starting from ASAP

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Seniority Senior (5-10 years)
Location Kharkiv, Ukraine
Go 5yr.
...

- 6 years of experience as a software engineer - 5 years of experience with Golang - Extensive knowledge and hands-on experience in these Public Key Infrastructure(PKI) and mutual TLS (mTLS) - Upper-Intermediate English

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Seniority Senior (5-10 years)
Location Yerevani, Armenia
JavaScript
React Native
...

- 7+ years of commercial experience in IT - Experience in developing applications using JavaScript (React, React Native) - Strong knowledge of JavaScript, HTML, CSS and big variety of development tools and libraries - Good logical thinking, self-learning, high level of responsibility - Responsible, self-motivation, hard-working, creative and communicable, team player. - Good attention to possible solutions and details - Desire to develop good modern applications - Intermediate+ English - Availability starting from ASAP

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Seniority Senior (5-10 years)
Location Croatia
Node.js
...

- Experience in developing web applications using JavaScript (React.js, Node,js). - Good logical thinking, high level of responsibility. - Communicative, responsible, hardworking, result-oriented, and team player. - Good attention to details. - Intermediate+ English - Availability starting from ASAP

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Seniority Senior (5-10 years)
Location Zaporizhzhya, Ukraine
QA
...

- Experience more than 9+ of professional Software Testing - Good understanding of QA theory and deliverables - Clear understanding of SDLC and testing processes: Scrum, Waterfall, XP - Practical experience in Agile/Scrum development processes - Strong experience in working with QA documentation, knowledge in using support documentation - Good knowledge of different testing methods, techniques and types - Ability to apply test analysis and test design techniques - Proficient with defect tracking and test management tools - Strong experience in testing of multiple iOS and Android-based smartphones and tablets - Experience in web services testing and Responsive Design testing - Test automation experience - Upper-Intermediate English - Availability starting from 01/10/2023

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Seniority Senior (5-10 years)
Location Lutsk, Ukraine
QA
...

- More that 7+ years of professional expertise in the Information Technologies (IT) industry - Technical Lead of QA department - Experience in teaching and team leading - Experience in negotiation and communication with customer - Clear understanding of SDLC and testing process: Agile (Scrum, Kanban), Non-agile (Waterfall, V-model) - Practical experience in Agile/Scrum development process - Strong experience in working with test documentation (Test-plan, checklist, test-case, test-report etc.) - Good knowledge of different testing methods, techniques and types - Proficient with defect tracking and test management tools - Strong experience in testing of multiple iOS and Android-based smartphones and tablets - Ability to work independently, analytical mindset - Responsive Design testing experience - Upper-Intermediate English. - Availability starting from ASAP

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Seniority Senior (5-10 years)
Location Morshyn, Ukraine
QA
...

- 8 years of experience in Quality Assurance; - Strong understanding of SDLC and testing methodologies; - Strong experience in testing web and mobile applications; - Daily Scrum activities (stand-ups, meetings, planning, work estimation, decision making); - Strong experience in maintaining and updating test documentation (test cases, checklists, test plan, mind map); - Providing test results reports on a daily/weekly basis; - Conducting internal trainings for QA team, have experience in mentoring, performance reviews; - Experience in Scrum Master responsibilities. - Upper-Intermediate English. - Availability starting from 01/10/2023

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Seniority Senior (5-10 years)
Location Poland
React Native
...

- Senior Software Engineer with 6 years of experience in the IT industry, 5+ of them at cross-platform mobile development. - Mostly works with React and React Native. - He does his best to keep up with modern practices and modern technologies, that way he can offer clients the most up to date solutions that give the users of their application the best experience. - Team player and flexible in the working environment. - Responsible Engineer willing to grow professionally and create new effective solutions for business. - Upper-Intermediate English.

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Seniority Senior (5-10 years)
Location Ukraine
React Native
...

- 4+ years of commercial experience - Highly motivated Full-stack developer with a strong focus on delivering results. - Equipped with solid technical and problem-solving skills, strive to create impactful solutions. - Great team player, and always responsive to the needs of the project. - Upper-Intermediate English.

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Seniority Senior (5-10 years)
Location Ukraine
Java
Python
Selenium Webdriver
...

- Experience more than 15+ of professional Software Development and Automation Testing - Tech Lead of QA department, enormous experience in mentoring; - Participation in testing of software applications for a range of business domains; - Experience in testing of different projects for different OS and Application Servers; - Experience with Java, Python automated testing; - Experience with Relational databases and ORM technology; - Experience in writing testing documents (test plans, test cases, etc.); - Experience in common testing techniques including black box, functional, smoke, load, performance, regression, GUI, usability, scenario, etc.; - Good communication skills, ability to learn new software and processes quickly and efficiently. - Upper-Intermediate English - Availability starting from ASAP

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Seniority Senior (5-10 years)
Location Ukraine
Java
...

- 37+ years of experience in IT. - Proficiency English

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Seniority Architect/Team-lead
Location Romania
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