Senior Full Stack Engineer (Node.js & React )

🏢 Summary: The offer is for an experienced Node.js Engineer to design, build, and scale backend services for a modern data-driven platform. The role involves developing REST/GraphQL APIs, contributing to system architecture, and owning the full development lifecycle in an Agile environment. The position requires close collaboration with cross-functional teams and active participation in technical decision-making. 🗂️ Requirements: 5+ years of experience with JavaScript and Node.js, Strong proficiency in TypeScript, Experience designing and building REST or GraphQL APIs, Knowledge of relational and NoSQL databases, Experience with AWS services, Understanding of software architecture and scalable systems, Experience with Express or Next.js frameworks, Knowledge of web fundamentals and security best practices, Fluent English (B2+), Availability overlapping with US Eastern Time core hours 📃 Skills: JavaScript, Node.js, TypeScript, REST, GraphQL, MySQL, MongoDB, Redis, AWS, EC2, Lambda, SQS, Express, Next.js, CORS, OWASP, Scrum 🏢 Description: We are looking for an experienced Node.js Engineer to join a team building and scaling a modern data-driven platform. ✅ Your responsibilities: Design, build, and maintain backend services using Node.js Develop scalable APIs (REST / GraphQL) Contribute to system architecture, performance, and scalability improvements Own the full development lifecycle: implementation, testing, deployment, and maintenance Collaborate closely with product, frontend, and DevOps teams in an Agile (Scrum) environment Participate in technical decision-making and drive best practices 🧠 Our requirements: 5+ years of experience with JavaScript / Node.js Strong proficiency in TypeScript Hands-on experience designing and building RESTful and/or GraphQL APIs Solid understanding of databases (relational and NoSQL, e.g., MySQL, MongoDB, Redis) Experience with AWS (e.g., EC2, Lambda, SQS) Good understanding of software architecture and scalable systems Experience with frameworks such as Express or Next.js Knowledge of web fundamentals (e.g., CORS) and security best practices (OWASP) Ability to work independently and support team-level technical decisions Fluent English (B2+) Availability overlapping with US Eastern Time core hours 🌟 What we offer: Remote work Flexible cooperation model (B2B / employment contract) Opportunity to work on a scalable, data-focused platform Collaboration with a highly skilled engineering team Real impact on technical decisions and system architecture

🏢 Summary: Frontend-focused role developing and maintaining scalable React applications with TypeScript, integrated with Node.js backend services and data pipelines. The position involves building production-grade, data-driven solutions, contributing to architecture decisions, and optimizing complex UI workflows. It offers work on a high-impact product within a modern TypeScript and React ecosystem. 🗂️ Requirements: Strong proficiency in React, Strong proficiency in TypeScript, Experience building large-scale production applications, Experience with Node.js and API integrations, Experience with data-driven applications, Understanding of modern frontend architecture, Knowledge of testing practices, Ability to work in cross-functional teams 📃 Skills: React, TypeScript, Node.js, APIs, Microservices, Snowflake, Testing, Architecture, Data, Pipelines 🏢 Description: ✅ Your responsibilities: Develop and maintain scalable React applications with TypeScript across the full frontend stack Collaborate closely with backend engineers, data teams, and product managers to deliver high-quality solutions Ensure type safety, code quality, and maintainability throughout the application Participate in design and architecture discussions, proposing improvements to frontend patterns and integrations Troubleshoot and optimize complex UI and data-intensive workflows Support knowledge sharing and mentor junior developers when needed 🧠 Our requirements: Strong proficiency in React and TypeScript , with experience building large-scale, production-grade applications Familiarity with Node.js backend development and integration with APIs or microservices Experience working with data-driven applications , ideally with Snowflake, data lakes, or pipelines Solid understanding of modern frontend architecture, testing, and best practices Ability to communicate effectively in a cross-functional, high-stakes environment Proactive, self-motivated, and capable of delivering high-quality solutions under tight timelines 🌟 What we offer: Opportunity to work on a premium, high-profile product with global business impact Exposure to a modern TypeScript/React ecosystem, integrated with backend Node.js services and advanced data pipelines Collaborative environment with experienced engineers and product leaders Career growth and technical mentorship in a cross-functional team Competitive employment package and benefits.

🏢 Summary: Backend-focused Fullstack Engineer role (80% backend) focused on designing and maintaining scalable, secure backend services and APIs for data-driven and integration platforms. The position involves working with distributed systems, system integrations, and cloud infrastructure while contributing to frontend development with React. You will own features end-to-end from design to deployment in a distributed international team. 🗂️ Requirements: ~5 years backend experience with Node.js and TypeScript, Strong knowledge of relational databases, Experience building REST APIs and distributed services, Hands-on experience with cloud infrastructure, Experience with Kubernetes, Practical experience with React, Experience with system integrations 📃 Skills: TypeScript, Node.js, React, PostgreSQL, GCP, Kubernetes, REST, SQL 🏢 Description: Fullstack Engineer (Backend-Focused) We’re looking for a Backend-heavy Fullstack Engineer (80% backend, 20% frontend) to join a distributed team building critical data and integration platforms. What You’ll Do Design and maintain scalable, secure backend services and APIs Work on system integrations and data-centric platforms Collaborate across frontend, backend, and data teams Take full ownership of features from design to deployment Tech Stack TypeScript / Node.js , React Relational databases (PostgreSQL or similar) Cloud infrastructure (GCP), Kubernetes REST APIs, system integrations, distributed services Who We’re Looking For ~5 years backend experience with Node.js / TypeScript Strong relational database knowledge Experience with React (frontend contribution) Cloud and Kubernetes experience Excellent communication skills , ownership, and proactive collaboration Comfortable working in distributed international teams

🏢 Summary: Senior Backend Engineer role focused on designing, building, deploying, and maintaining scalable backend systems using TypeScript and Node.js in a cloud environment. The position involves developing microservices on AWS, shaping system architecture across platforms, and ensuring production reliability for international users. Strong emphasis on clean architecture, testing, and infrastructure as code. 🗂️ Requirements: 5+ years backend development experience in production environments, Expert hands-on experience with TypeScript and Node.js, Strong knowledge of software engineering principles, testing, data structures, and algorithms, Experience designing and developing REST APIs, Experience with event-driven architecture, Experience building and maintaining microservices, Hands-on experience with AWS cloud services, Experience with Infrastructure as Code using Terraform, Experience with CI/CD pipelines and related tools, Strong knowledge of PostgreSQL and DynamoDB, Proficiency in OO design patterns, SOLID principles, and Clean Code, Computer Science degree, Experience working with Agile methodologies such as SCRUM or Kanban 📃 Skills: TypeScript, JavaScript, Node.js, AWS, Terraform, CircleCI, Docker, Datadog, PostgreSQL, DynamoDB, REST, CICD, Microservices, OOP, SOLID, Algorithms, DataStructures, SCRUM, Kanban 🏢 Description: About the role You will need to be an expert in backend development with a thorough understanding of the technologies involved. Strong backend skills where you can demonstrate your ability to apply these technologies, as well as deploy and maintain them will be crucial to success. Technologies we work with: Typescript, JavaScript, Node.js, REST APIs, AWS, Terraform Responsibilities: Designing, writing, testing functionalities for a backend system written in TypeScript, Node.js Deploying and maintaining microservices in AWS using Terraform Design software architecture between backend, frontend and mobile apps Maintaining system on production used by consumers from several European countries Debugging issues Scoping and assessing the complexity of features Participating in sprint planning, daily sprints and meetings with product owners for grooming new features Recruiting and mentoring team members Collaborating with other team members and teams that depend on the functionalities that you develop Required qualifications: 5+ years of production software development experience in backend Strong understanding of software engineering principles, testing, data structures and algorithms Expert hands-on experience in technologies such as Typescript / Node.js Experience in developing Cloud and Infrastructure solutions with AWS and CI/CD processes supported by tools like Terraform, CircleCI, Docker, Datadog, etc. Strong knowledge of DBMS like PostgreSQL, DynamoDB Expertise in REST APIs, Experience in event driven architecture Proficiency in OO design patterns, SOLID principles, Clean Code and solving architectural problems Computer Science degree Experience working with Agile methodologies such as SCRUM and/or Kanban Good communication and collaboration skills Self-motivation, proactive attitude Proficiency in English Nice to have: Exposure to frontend development in React Working experience with one of the object-oriented and/or functional languages such as C#, Python Java, Golang, Kotlin

🏢 Summary: Frontend React Developer role focused on building and scaling modern web applications using React and Next.js in distributed, cloud-based environments. The position involves developing reusable components, integrating with APIs and cloud services, and ensuring high performance, security, and code quality through testing and best practices. The role requires strong experience in scalable architectures and collaboration within microservices-based systems. 🗂️ Requirements: 5+ years of commercial experience with React, Strong knowledge of JavaScript and TypeScript, Practical experience with React hooks, routing, and state management, Experience in distributed systems or microservices environments, Experience with cloud platforms (GCP preferred), Experience building scalable applications consuming REST APIs and JSON, Knowledge of data structures and algorithms, Proficiency in HTML and modern CSS approaches, Experience with automated testing (unit, integration, end-to-end), Ability to debug and optimize applications using browser developer tools, Experience building responsive web interfaces 📃 Skills: React, Next.js, JavaScript, TypeScript, HTML, CSS, Tailwind, SASS, CSSModules, REST, JSON, GCP, Microservices, UnitTesting, IntegrationTesting, E2E, BrowserTools, DataStructures, Algorithms 🏢 Description: We are looking for a Frontend React Developer for our client – a global technology consulting company focused on data, analytics, and cloud-based solutions, supporting international organizations in building scalable digital products. They operate in a distributed environment, combining strong engineering practices with a business-oriented mindset to deliver impactful solutions across multiple industries. Your responsibilities Build and enhance modern web applications using React and Next.js Create reusable components and contribute to scalable frontend architecture Work closely with cross-functional teams including backend engineers, data specialists, and product stakeholders Improve performance, security, and overall user experience of applications Connect frontend layers with APIs and cloud-based services Maintain high development standards through testing and clean coding practices. Requirements At least 5 years of hands-on experience with React in commercial projects Strong command of JavaScript and TypeScript Practical understanding of React fundamentals, including hooks, routing, and state management solutions Experience working in distributed systems or microservices environments Exposure to cloud platforms (GCP experience is an advantage) Background in developing scalable applications that consume REST APIs and work with JSON data Solid grasp of core programming concepts such as data structures and algorithms Good knowledge of HTML and modern CSS approaches (e.g. Tailwind, SASS, CSS Modules, or similar tools) Experience with automated testing (unit, integration, and end-to-end) Ability to debug and optimize applications using browser developer tools Experience in building responsive and user-friendly interfaces across devices Strong communication skills and experience working in collaborative, distributed teams Self-driven approach with a strong sense of ownership English proficiency at B2 + level or higher.

🏢 Summary: Fullstack engineering role focused on designing, developing, deploying, and maintaining backend services in TypeScript and frontend applications in React. The position involves building and operating microservices in AWS using Terraform, ensuring production stability, and contributing to architecture and feature planning. You will work in an Agile environment with strong emphasis on code quality, testing, and CI/CD practices. 🗂️ Requirements: 5+ years fullstack production experience, Strong TypeScript or C# experience, Experience with React development, Knowledge of PostgreSQL or DynamoDB, Experience building and consuming REST APIs, Hands-on experience with CICD pipelines, Understanding of data structures and algorithms, Knowledge of OOP, SOLID and CleanCode principles, Experience with AWS and infrastructure as code, Computer Science degree, Experience with Scrum or Kanban 📃 Skills: TypeScript, JavaScript, NodeJS, React, REST, AWS, Terraform, CSharp, PostgreSQL, DynamoDB, CICD, Docker, Kubernetes, Jenkins, CircleCI, GitLabCI, Datadog, Microservices, SOLID, CleanCode, OOP, Algorithms, DataStructures, Scrum, Kanban 🏢 Description: About the role You will need to be an expert in backend and frontend development with a thorough understanding of the technologies involved. Strong backend and frontend skills where you can demonstrate your ability to apply these technologies, as well as deploy and maintain them will be crucial to success. Technologies we work with:Typescript, JavaScript, Node.js, React, REST APIs, React, AWS, Terraform, C# Responsibilities: Designing, writing, testing functionalities for a backend system written in TypeScript and a frontend system written in React & TypeScript Deploying and maintaining microservices in AWS using Terraform Maintaining system on production used by consumers from several European countries Debugging issues Scoping and assessing the complexity of features Participating in sprint planning, daily sprints and meetings with product owners for grooming new features Recruiting and mentoring team members Collaborating with other team members and teams that depend on the functionalities that you develop Required qualifications: 5+ years of production software development experience in a fullstack role Strong understanding of software engineering principles, testing, data structures and algorithms Solid hands-on experience in technologies such as Typescript or C# Strong knowledge of DBMS like PostgreSQL, DynamoDB Expertise of REST APIs Strong hands-on experience of CI&CD processes Proficiency of OO design patterns, SOLID principles and Clean Code Computer Science degree Able to work with Agile methodologies such as SCRUM and/or Kanban Good communication and collaboration skills Self-motivation, proactive attitude Proficiency in English Nice to have: Some experience or interest in developing Cloud and Infrastructure solutions with AWS and CI/CD processes supported by tools like Docker, Kubernetes, Jenkins, Terraform, CircleCI, GitlabCI, Datadog, etc. Working experience with one of the object-oriented and/or functional languages such as C#, Elixir, C++, Java, Golang, Erlang, Python, Kotlin

🏢 Summary: Lead Software Engineer role focused on designing and delivering scalable, secure, high-performance full-stack applications for enterprise and public sector clients. The position involves building modern frontend and backend systems, developing APIs and microservices, and supporting CI/CD, testing, and cloud environments. The role also includes technical leadership and mentoring within cross-functional teams. 🗂️ Requirements: Strong experience with JavaScript and TypeScript, Backend development experience with Node.js or Python, Experience with modern frontend frameworks, Knowledge of REST and GraphQL APIs, Experience with microservices architecture, Experience with cloud platforms (AWS, Azure, or GCP), Familiarity with CI/CD pipelines, Experience with testing frameworks, Understanding of security best practices, Understanding of performance optimization, Experience mentoring developers or leading technical initiatives 📃 Skills: JavaScript, TypeScript, Node.js, Python, React, Vue, Angular, REST, GraphQL, Microservices, AWS, Azure, GCP, CI/CD, Testing, Security, Performance 🏢 Description: International company delivering advanced internet connectivity solutions is looking for a Lead Software Engineer to help build scalable, secure, and high-performance digital products used by enterprise and public sector clients. Your responsibilities 🚀 Designing and developing modern full-stack applications Building scalable front-end solutions (React, Vue, Angular) Developing backend services and APIs (REST / GraphQL) Creating reusable components and microservices Supporting CI/CD, testing, monitoring, and automation Collaborating with Product and Design teams Mentoring engineers and supporting technical decisions Must have ✅ Strong experience with JavaScript / TypeScript Backend development experience (Node.js or Python preferred) Experience with modern frontend frameworks Knowledge of APIs, microservices, and cloud platforms (AWS, Azure, GCP) Familiarity with CI/CD and testing frameworks Understanding of security and performance best practices Experience mentoring developers or leading technical initiatives Nice to have ⭐ Experience with AI-driven tools Knowledge of design systems or distributed systems Advanced security knowledge What’s offered 🎁 International work environment Modern tech stack and large-scale systems Learning & development opportunities Competitive salary + private healthcare + pension plan Hybrid working model

🏢 Summary: The offer is for a Senior Fullstack Developer responsible for designing, developing, and optimizing scalable web applications with a strong focus on Java-based back-end systems and React/Next.js front-end solutions. The role involves building and maintaining APIs, integrating third-party services, managing databases, and ensuring application security and performance. It includes collaboration with cross-functional teams and contributing to high-quality, secure, and well-documented systems. 🗂️ Requirements: At least 4 years of experience in similar position, Proficiency in Java server-side programming, Strong understanding of React and Next.js core principles, Experience with React Router, Hooks, Redux or similar state management, Experience with MySQL, PostgreSQL or MongoDB, Proven experience in building scalable web applications, Experience in back-end development, English level B2 or higher 📃 Skills: Java, React, Next.js, Redux, JavaScript, MySQL, PostgreSQL, MongoDB, Git, REST, API, Docker, NodeJS, AWS, Azure, GCP 🏢 Description: Tasks: Designing, developing, and maintaining the server-side logic of web applications. Implementing scalable and efficient server-side components and APIs. Build React/Next.js based applications. Working with relational and/or NoSQL databases to store and retrieve data efficiently. Designing and optimizing database schemas for performance and scalability. Integrating third-party APIs and web services to enhance application functionality. Developing custom APIs to facilitate communication between front-end and back-end systems. Implementing security best practices to protect against common web application vulnerabilities. Conducting regular security audits and implement necessary measures. Optimization: optimizing server-side code for maximum speed and scalability. Monitoring and troubleshooting performance issues. Collaborating with front-end developers, UI/UX designers, and other team members to ensure seamless integration of components. Using version control systems (e.g., Git) to manage and track changes to the codebase. Conducting thorough testing of server-side components to identify and fix bugs. Collaborating with QA engineers for comprehensive testing. Clear and comprehensive documentation for back-end systems and APIs. Requirements: At least 4 years of experience in a similar position. Proficiency in Java server-side programming. Thorough understanding of React/Next.js core principles along with React router, hooks, Redux (or the like) workflows, Web performance and security. Experience with database systems (e.g., MySQL, PostgreSQL, MongoDB). Proven experience in back-end development and building scalable web applications. Familiarity with cloud platforms (e.g., AWS, Azure, GCP) is a plus. Previous experience in Front-end development with Docker is plus. Experience with NodeJS is a plus. Strong analytical and problem-solving skills with attention to detail. Effective communication skills to collaborate with cross-functional teams. Ability to adapt to changing project requirements and technologies. English at least B2. Offer: Stable employment. On the market since 2008, 1500+ talents currently on board in 7 global sites. “Office as an option” model. You can choose to work remotely or in the office. Great Place to Work® certified employer. Flexibility regarding working hours and your preferred form of contract. Comprehensive online onboarding program with a “Buddy” from day 1. Cooperation with top-tier engineers and experts. Unlimited access to the Udemy learning platform from day 1. Internal Gallup Certified Strengths Coach to support your growth. Certificate training programs. Lingarians earn 500+ technology certificates yearly. Upskilling support. Capability development programs, Competency Centers, knowledge sharing sessions, community webinars, 110+ training opportunities yearly. Grow as we grow as a company. 76% of our managers are internal promotions. A diverse, inclusive, and values-driven community. Autonomy to choose the way you work. We trust your ideas. Create our community together. Refer your friends to receive bonuses. Activities to support your well-being and health. Plenty of opportunities to donate to charities and support the environment. Modern office equipment. Purchased for you or available to borrow, depending on your location.

🏢 Summary: Lead Software Engineer role focused on building scalable, secure, and high-performance full-stack applications for enterprise and public sector clients. The position involves designing modern frontend and backend solutions, developing APIs and microservices, and supporting cloud-based CI/CD environments. The role also includes technical leadership and mentoring while ensuring best practices in security and performance. 🗂️ Requirements: Strong experience with JavaScript, Strong experience with TypeScript, Backend development experience with Node.js or Python, Experience with modern frontend frameworks, Knowledge of APIs and microservices, Experience with cloud platforms (AWS, Azure, or GCP), Familiarity with CI/CD pipelines, Experience with testing frameworks, Understanding of security best practices, Understanding of performance optimization best practices, Experience mentoring developers or leading technical initiatives 📃 Skills: JavaScript, TypeScript, Node.js, Python, React, Vue, Angular, REST, GraphQL, Microservices, APIs, AWS, Azure, GCP, CICD, Testing, Security, Performance 🏢 Description: International company delivering advanced internet connectivity solutions is looking for a Lead Software Engineer to help build scalable, secure, and high-performance digital products used by enterprise and public sector clients. Your responsibilities 🚀 Designing and developing modern full-stack applications Building scalable front-end solutions (React, Vue, Angular) Developing backend services and APIs (REST / GraphQL) Creating reusable components and microservices Supporting CI/CD, testing, monitoring, and automation Collaborating with Product and Design teams Mentoring engineers and supporting technical decisions Must have ✅ Strong experience with JavaScript / TypeScript Backend development experience (Node.js preferred or Python) Experience with modern frontend frameworks Knowledge of APIs, microservices, and cloud platforms (AWS, Azure, GCP) Familiarity with CI/CD and testing frameworks Understanding of security and performance best practices Experience mentoring developers or leading technical initiatives Nice to have ⭐ Experience with AI-driven tools Knowledge of design systems or distributed systems Advanced security knowledge

🏢 Summary: Senior Frontend Developer role focused on designing, building, testing, deploying, and maintaining a React and TypeScript-based frontend system integrated with backend services and mobile apps. The position involves frontend architecture design, production support, and working within Agile teams to deliver scalable solutions used across multiple countries. 🗂️ Requirements: 5+ years of production experience with React, Strong hands-on experience with TypeScript, Strong understanding of software engineering principles, Experience with testing and design systems, Knowledge of REST APIs, Familiarity with DBMS such as PostgreSQL or DynamoDB, Degree in Computer Science, Experience working with Agile methodologies (SCRUM or Kanban), Experience using AI tooling 📃 Skills: React, TypeScript, JavaScript, HTML, CSS, REST, PostgreSQL, DynamoDB, Testing, DesignSystems, Agile, SCRUM, Kanban, AI 🏢 Description: About the role You will need to be an expert in frontend development with a thorough understanding of the technologies involved. Strong frontend skills where you can demonstrate your ability to apply these technologies, as well as deploy and maintain them will be crucial to success. Technologies we work with: React, TypeScript, JavaScript, HTML, CSS, Cypress, Playwright, Node.js, REST APIs, AWS, Terraform Responsibilities: Designing, writing, testing functionalities for a frontend system written in React & TypeScript Design frontend software architecture with connection to backend services and mobile apps Deploying and maintaining frontend / backend applications Maintaining system on production used by consumers from several European countries Debugging issues Scoping and assessing the complexity of features Participating in sprint planning, daily sprints and meetings with product owners for grooming new features Collaborating with other team members and teams who depend on functionalities that you develop Recruiting and mentoring new team members Required qualifications: 5+ years of production software development experience in React Strong understanding of software engineering principles, testing, design systems Solid hands-on experience in TypeScript Know-how of REST APIs Familiarity with DBMS like PostgreSQL, DynamoDB Computer Science degree AI Tooling usage Able to work with Agile methodologies such as SCRUM and/or Kanban Good communication and collaboration skills Self-motivation, proactive attitude Proficiency in English Nice to have: Exposure to backend development (can be in TypeScript) Some experience or interest in developing Cloud and Infrastructure solutions with AWS and CI/CD processes supported by tools like Docker, Kubernetes, Jenkins, Terraform, CircleCI, GitlabCI, Datadog, etc.