Senior Fullstack (React + Node.js) Developer

🏢 Summary: Senior Fullstack (React + Node.js) Developer role focused on building and enhancing a complex iGaming platform using modern web technologies. The position involves developing new features, integrating third-party APIs, and ensuring scalability, performance, and code quality within a microservices-based architecture. Office presence in Łódź or Wrocław is required. 🗂️ Requirements: Knowledge of JavaScript and ECMAScript 6, 3+ years commercial experience with React, 3+ years commercial experience with Node.js, 3+ years commercial experience with Nest.js, 5+ years commercial experience in web development, Experience with high-load SQL or NoSQL databases, Experience implementing REST, GraphQL and WebSockets, Understanding of TDD principles and writing tests, Understanding of microservices architecture, Experience with GIT, Experience with RabbitMQ, Experience with Redis, Ability to work from office in Łódź or Wrocław 5 days per week 📃 Skills: JavaScript, ECMAScript6, React, Node.js, Nest.js, SQL, NoSQL, REST, GraphQL, WebSockets, TDD, Microservices, GIT, RabbitMQ, Redis 🏢 Description: We are looking for a Senior Fullstack (React + Node.js) Developer to join our team in developing a complex iGaming platform using the latest web development technologies. If you're a self-starter with solid architecture, design, coding, testing, and debugging skills, we'd love to hear from you! Please note that office work 5 days from the EPAM office in Łódź, Wroclaw is required. Responsibilities Develop the in-house iGaming platform Integrate 3rd party APIs Create new features from inception Collaborate with cross-functional teams for high-quality solutions Ensure platform scalability and performance Maintain code quality through testing and debugging Contribute to architectural and design decisions Enhance and support existing platform components Requirements Knowledge of JavaScript and ECMAScript 6 standards 3+ years commercial experience in React, Node.js and Nest.js 5+ years commercial experience in web development Background in high loaded SQL or NoSQL databases Implementation of REST, GraphQL and WebSockets Understanding of TDD principles and test writing Familiarity with microservice architecture principles Skills in GIT, RabbitMQ and Redis Nice to have 2+ years hands-on background developing over CI/CD, Microservices architecture or Containers Familiarity with Kubernetes, Nats or TypeScript We offer/Benefits We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

🏢 Summary: Senior Full-stack Developer role focused on building and enhancing a digital banking product using React.js and Java. The position involves end-to-end development, quality assurance, observability, and production support in a hybrid work model. Ideal for engineers experienced in scalable applications, CI/CD, testing frameworks, and AI-driven solutions. 🗂️ Requirements: Strong knowledge of React.js with ability to write custom hooks and reusable responsive components, In-depth knowledge of JavaScript, CSS, HTML, Proven experience with Java and Spring, Experience with GitLab CI/CD, Experience with testing frameworks (Jest, React Testing Library, Playwright), Proven AI experience 📃 Skills: React, Java, JavaScript, Spring, HTML, CSS, GitLab, CI/CD, Jest, Playwright, Azure, Terraform, AI 🏢 Description: We are seeking a talented Senior Full-stack Developer with expertise in React.js and Java to join our dynamic team on an exciting project in the banking sector. If you are passionate about building robust, scalable applications and eager to contribute to a fast-paced, innovative environment, this opportunity may be an excellent fit for you. Please note that hybrid work, with 3 days from the Client office in Wroclaw, is possible. Responsibilities Help design, develop, and improve the digital product Apply a broad range of software engineering practices, from analyzing user needs and developing new features to automated testing and deployment Ensure the quality, security, reliability, and compliance of our solutions by applying our digital principles and implementing both functional and non-functional requirements Build observability into our solutions, monitor production health, help to resolve incidents, and remediate the root cause of risks and issues Share knowledge and expertise with colleagues and contribute regularly to our engineering culture and internal communities Requirements Thorough understanding of React.js and with an ability to write custom hooks and responsive reusable components In-depth knowledge of JavaScript, CSS, HTML, and front-end languages Proven experience in Java and Spring Knowledge of GitLab CI/CD Knowledge of testing frameworks, including Jest and React Testing Library, Playwright Proven AI experience Nice to have Knowledge of Microsoft Azure, Terraform Working experience in Agile methodologies (Scrum, Kanban) and knowledge of associated tools like JIRA or GitLab boards We offer We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

🏢 Summary: Senior Full-stack Developer role focused on building and enhancing scalable digital banking solutions using React.js and Java. The position involves end-to-end development, automated testing, deployment, and ensuring quality, security, and reliability of applications in a hybrid work model. You will contribute to engineering practices, observability, and continuous improvement within a fast-paced environment. 🗂️ Requirements: Strong knowledge of React.js, Ability to write custom hooks, Experience building responsive reusable components, Strong knowledge of JavaScript, Strong knowledge of CSS, Strong knowledge of HTML, Proven experience with Java, Proven experience with Spring, Experience with GitLab CI/CD, Experience with Jest, Experience with React Testing Library, Experience with Playwright 📃 Skills: React, Java, JavaScript, CSS, HTML, Spring, GitLab, CI/CD, Jest, Playwright 🏢 Description: We are seeking a talented Senior Full-stack Developer with expertise in React.js and Java to join our dynamic team on an exciting project in the banking sector. If you are passionate about building robust, scalable applications and eager to contribute to a fast-paced, innovative environment, this opportunity may be an excellent fit for you. Please note that hybrid work, with 3 days from the Client office in Wroclaw, is possible. Responsibilities Help design, develop, and improve the digital product Apply a broad range of software engineering practices, from analyzing user needs and developing new features to automated testing and deployment Ensure the quality, security, reliability, and compliance of our solutions by applying our digital principles and implementing both functional and non-functional requirements Build observability into our solutions, monitor production health, help to resolve incidents, and remediate the root cause of risks and issues Share knowledge and expertise with colleagues and contribute regularly to our engineering culture and internal communities Requirements Thorough understanding of React.js and with an ability to write custom hooks and responsive reusable components In-depth knowledge of JavaScript, CSS, HTML, and front-end languages Proven experience in Java and Spring Knowledge of GitLab CI/CD Knowledge of testing frameworks, including Jest and React Testing Library, Playwright Nice to have Knowledge of Microsoft Azure, Terraform Working experience in Agile methodologies (Scrum, Kanban) and knowledge of associated tools like JIRA or GitLab boards We offer/Benefits We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

🏢 Summary: Full-time Senior Full Stack Developer role focused on building scalable, data-driven platforms for financial and enterprise sectors using Node.js and React. The position involves designing microservices, developing RESTful APIs, and creating responsive front-end applications in a hybrid work model (Warsaw). 🗂️ Requirements: 5+ years experience as Senior Full Stack Developer, Strong expertise in Node.js, Strong expertise in React, Experience with Express.js, Experience building RESTful or GraphQL APIs, Knowledge of OAuth and JWT authentication, Proficiency in Redux, HTML5, CSS3, ES6+, Experience with Vite, Webpack or Babel, Experience with MySQL or PostgreSQL, Experience with AWS, Azure or GCP, Experience with Docker and Kubernetes, Proficiency with Git 📃 Skills: Node.js, React, Express.js, GraphQL, REST, OAuth, JWT, Redux, HTML5, CSS3, JavaScript, ES6, Vite, Webpack, Babel, MySQL, PostgreSQL, AWS, Azure, GCP, Docker, Kubernetes, Git, SQL, MongoDB, CI/CD 🏢 Description: Senior Full Stack Developer (Node.js + React) 💰 Salary: 23,000-24,800 PLN/Month 💻 Warsaw, Poland (Hybrid - 3 days in office, 2 days remote) 🕦 Full-time ☑️ B2B or CoE We’re looking for a Senior Full-Stack Developer to join a fast-growing international tech company focused on building modern, data-driven platforms that power digital transformation in the financial and enterprise sectors. Requirements: 5+ years of experience as a Senior Full Stack Developer with significant expertise in Node.js and React. Strong experience in building server-side applications using Node.js and Express.js. Hands-on experience with API development and integration, particularly with GraphQL or RESTful services. Strong knowledge of authentication and authorization mechanisms (OAuth, JWT, session-based). Front-end proficiency in React.js, Redux, HTML5, CSS3, and modern JavaScript (ES6+). Familiarity with front-end build tools such as Vite, Webpack, and Babel. Strong experience with databases such as MySQL and  PostgreSQL. Experience with cloud platforms (AWS, Azure, or GCP), as well as containerization and orchestration tools such as Docker and Kubernetes. Strong experience using Git and version control systems. Proficiency in English (both written and spoken). Key Responsibilities: Design, build, and maintain scalable, high-performance server-side applications and RESTful APIs using Node.js and Express.js. Develop and maintain interactive, responsive user interfaces using React.js, Redux, and modern JavaScript (ES6+). Lead the design and implementation of scalable architectures and microservices. Work closely with database engineers to design efficient schemas and manage data interactions using SQL databases or MongoDB. Ensure reliable deployments and smooth release of updates using CI/CD pipelines and Docker. Write unit and integration tests and optimize performance to ensure high-quality code. Collaborate closely with cross-functional teams to define and implement technical solutions. Improve system performance, reliability, and long-term maintainability through optimization and best practices. Get to know DevsData: We are a technology consulting company and a recruitment agency, delivering software solutions to clients from Europe and the US. We work 100% remotely, in an international team, including people from Asia, London, or San Francisco. We employ people with experience in international corporations as well as students of the best technical and business universities. Find out more: https://devsdata.com/

🏢 Summary: Full-Stack Developer role focused on building and delivering secure, scalable applications using React, Next.js, Node.js, and Azure. The position emphasizes shift-left testing, API development, and end-to-end ownership of high-quality, resilient solutions. You will work across the stack to design, develop, and optimize modern web applications and microservices. 🗂️ Requirements: 3+ years of full-stack development with TypeScript, Next.js, Node.js, React, Experience with RESTful and GraphQL APIs, Knowledge of Microsoft Azure, Familiarity with CI/CD pipelines, Understanding of DevOps practices, Knowledge of web security principles, Experience with Git, Understanding of software engineering principles and design patterns 📃 Skills: TypeScript, JavaScript, Next.js, React, Node.js, Azure, REST, GraphQL, CI/CD, Git, DevOps, Microservices, Testing, Security, APIs 🏢 Description: We are seeking a highly skilled Full-Stack (React/Node.js + Azure) Developer to join our team and play a pivotal role in implementing a new project. In this position, you will be instrumental in shaping our shift-left testing strategy, ensuring that quality and resilience are embedded from the very beginning of development. Leveraging your strong expertise in Next.js, you will work across the stack—from building modern, performant front-end experiences to designing and integrating APIs and microservices. You will take ownership of delivering secure, scalable, testable, and maintainable solutions that meet the highest engineering standards. Responsibilities Design, build, and maintain full-stack applications using TypeScript, Next.js, Node.js, and React Champion the shift-left approach by embedding quality early in the SDLC, writing unit, integration, and end-to-end tests alongside feature development Collaborate with product managers, designers, and other developers to deliver high-quality features and user experiences Develop and maintain RESTful and GraphQL APIs, ensuring robust integration with front-end and third-party services Optimize application performance, scalability, and security Participate in code reviews, providing constructive feedback and ensuring adherence to best practices Troubleshoot, debug, and resolve technical issues across the stack Contribute to continuous improvement of development processes, tools, and methodologies Document technical decisions, system architecture, and codebase for future reference and onboarding Requirements 3+ years of experience developing full-stack applications with TypeScript, Next.js, Node.js, and React Strong understanding of software engineering principles, design patterns, and best practices Familiarity with CI/CD pipelines and modern DevOps practices Knowledge of Microsoft Azure Proficiency in building and consuming RESTful and GraphQL APIs Solid understanding of web security principles and secure coding practices Experience with version control systems, preferably Git Excellent problem-solving skills and attention to detail Good work ethic and strong sense of ownership of end result Excellent verbal and written communication skills, B2 level of English We offer/Benefits We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

🏢 Summary: Lead the development of a high-load iGaming platform as a Tech/Team Lead Node.js Developer, driving architecture, integrations and new feature delivery. The role focuses on building scalable microservices, APIs and database solutions while collaborating with cross-functional teams. Fully remote work from Poland is possible. 🗂️ Requirements: Strong knowledge of JavaScript and ECMAScript 6, 3+ years commercial experience with Node.js and Nest.js, 5+ years commercial experience in web development, Proven AI experience, Hands-on experience with high-load SQL or NoSQL databases, Commercial experience implementing REST, GraphQL and WebSocket APIs, Solid understanding of TDD principles and experience writing tests, Understanding of microservice architecture principles, Practical experience with GIT, Hands-on experience with RabbitMQ and Redis, Familiarity with MongoDB and MySQL 📃 Skills: JavaScript, ECMAScript6, Node.js, Nest.js, AI, SQL, NoSQL, MongoDB, MySQL, REST, GraphQL, WebSocket, TDD, Microservices, GIT, RabbitMQ, Redis, TypeScript, Kubernetes, NATS, CI/CD 🏢 Description: We are looking for an experienced Tech/Team Lead Node.js Developer to spearhead the development of the innovative iGaming platform. Please note that fully remote work from Poland is possible. Responsibilities Build and maintain our in-house platform while ensuring scalability and reliability Design and implement integrations with third-party APIs Take an active role in developing new features from scratch by contributing ideas and technical solutions Operate with high-load SQL and NoSQL databases (MongoDB, MySQL) Implement REST, GraphQL and WebSocket APIs Write and maintain unit and integration tests following TDD principles Collaborate with cross-functional teams to define, design and ship new features Use GIT for version control and take part in code reviews Handle message brokers such as RabbitMQ and Redis Follow microservice architecture principles in system design and implementation Requirements Strong knowledge of JavaScript and ECMAScript 6 standards 3+ years of commercial experience with Node.js and Nest.js 5+ years of commercial experience in web development Proven AI experience Hands-on background in high-load SQL or NoSQL databases Commercial experience implementing REST, GraphQL and WebSocket APIs Solid understanding of TDD principles and proven experience writing tests Understanding of microservice architecture principles Practical experience with GIT version control Hands-on background with RabbitMQ and Redis Familiarity with MongoDB and MySQL databases Nice to have 2+ years of practical background in CI/CD, microservices architecture or containerization Hands-on familiarity with Kubernetes Practical exposure to the NATS messaging system Working knowledge of TypeScript We offer We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

🏢 Summary: Opportunity for an experienced Tech/Team Lead Node.js Developer to lead the development of a high-load iGaming platform, designing scalable architecture and integrating third-party services. The role involves hands-on backend development, API design, database management and microservices implementation. Fully remote work from Poland is available. 🗂️ Requirements: Strong knowledge of JavaScript and ECMAScript 6, 3+ years of commercial experience with Node.js and Nest.js, 5+ years of commercial web development experience, Proven AI experience, Experience with high-load SQL or NoSQL databases, Experience implementing REST, GraphQL and WebSocket APIs, Experience with TDD and writing unit and integration tests, Understanding of microservice architecture principles, Experience with GIT version control, Experience with RabbitMQ and Redis, Familiarity with MongoDB and MySQL 📃 Skills: JavaScript, ECMAScript6, Node.js, Nest.js, AI, SQL, NoSQL, MongoDB, MySQL, REST, GraphQL, WebSocket, TDD, GIT, RabbitMQ, Redis, Microservices 🏢 Description: We are looking for an experienced Tech/Team Lead Node.js Developer to spearhead the development of the innovative iGaming platform. Please note that fully remote work from Poland is possible. Responsibilities Build and maintain our in-house platform while ensuring scalability and reliability Design and implement integrations with third-party APIs Take an active role in developing new features from scratch by contributing ideas and technical solutions Operate with high-load SQL and NoSQL databases (MongoDB, MySQL) Implement REST, GraphQL and WebSocket APIs Write and maintain unit and integration tests following TDD principles Collaborate with cross-functional teams to define, design and ship new features Use GIT for version control and take part in code reviews Handle message brokers such as RabbitMQ and Redis Follow microservice architecture principles in system design and implementation Requirements Strong knowledge of JavaScript and ECMAScript 6 standards 3+ years of commercial experience with Node.js and Nest.js 5+ years of commercial experience in web development Proven AI experience Hands-on background in high-load SQL or NoSQL databases Commercial experience implementing REST, GraphQL and WebSocket APIs Solid understanding of TDD principles and proven experience writing tests Understanding of microservice architecture principles Practical experience with GIT version control Hands-on background with RabbitMQ and Redis Familiarity with MongoDB and MySQL databases Nice to have 2+ years of practical background in CI/CD, microservices architecture or containerization Hands-on familiarity with Kubernetes Practical exposure to the NATS messaging system Working knowledge of TypeScript We offer We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

🏢 Summary: Opportunity for an experienced Tech/Team Lead Node.js Developer to lead the development of a scalable iGaming platform, working fully remotely from Poland. The role focuses on building high-load, microservices-based systems, integrating third-party APIs, and driving new feature development from scratch. You will collaborate with cross-functional teams while ensuring code quality, reliability, and architectural excellence. 🗂️ Requirements: 3+ years commercial experience with Node.js and Nest.js, 5+ years commercial experience in web development, Strong knowledge of JavaScript and ECMAScript 6, Proven AI experience, Hands-on experience with high-load SQL or NoSQL databases, Commercial experience implementing REST, GraphQL and WebSocket APIs, Solid understanding of TDD and experience writing unit and integration tests, Understanding of microservice architecture principles, Practical experience with GIT, Hands-on experience with RabbitMQ and Redis, Familiarity with MongoDB and MySQL 📃 Skills: JavaScript, ECMAScript6, Node.js, Nest.js, AI, MongoDB, MySQL, SQL, NoSQL, REST, GraphQL, WebSocket, TDD, GIT, RabbitMQ, Redis, Microservices, CI/CD, Kubernetes, NATS, TypeScript 🏢 Description: We are looking for an experienced Tech/Team Lead Node.js Developer to spearhead the development of the innovative iGaming platform. Please note that fully remote work from Poland is possible. Responsibilities Build and maintain our in-house platform while ensuring scalability and reliability Design and implement integrations with third-party APIs Take an active role in developing new features from scratch by contributing ideas and technical solutions Operate with high-load SQL and NoSQL databases (MongoDB, MySQL) Implement REST, GraphQL and WebSocket APIs Write and maintain unit and integration tests following TDD principles Collaborate with cross-functional teams to define, design and ship new features Use GIT for version control and take part in code reviews Handle message brokers such as RabbitMQ and Redis Follow microservice architecture principles in system design and implementation Requirements Strong knowledge of JavaScript and ECMAScript 6 standards 3+ years of commercial experience with Node.js and Nest.js 5+ years of commercial experience in web development Proven AI experience Hands-on background in high-load SQL or NoSQL databases Commercial experience implementing REST, GraphQL and WebSocket APIs Solid understanding of TDD principles and proven experience writing tests Understanding of microservice architecture principles Practical experience with GIT version control Hands-on background with RabbitMQ and Redis Familiarity with MongoDB and MySQL databases Nice to have 2+ years of practical background in CI/CD, microservices architecture or containerization Hands-on familiarity with Kubernetes Practical exposure to the NATS messaging system Working knowledge of TypeScript We offer We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

🏢 Summary: Leadership role focused on building and scaling a high-load iGaming platform using Node.js and microservices architecture. The position involves designing APIs, integrating third-party services, and ensuring system reliability and scalability. The role requires on-site work in one of the specified office locations. 🗂️ Requirements: Strong knowledge of JavaScript and ECMAScript 6, 3+ years commercial experience with Node.js and Nest.js, 5+ years commercial experience in web development, Experience with high-load SQL or NoSQL databases, Experience implementing REST, GraphQL and WebSocket APIs, Experience writing unit and integration tests using TDD, Understanding of microservice architecture, Experience with GIT version control, Experience with RabbitMQ and Redis, Familiarity with MongoDB and MySQL 📃 Skills: JavaScript, ECMAScript6, Node.js, Nest.js, SQL, NoSQL, MongoDB, MySQL, REST, GraphQL, WebSocket, TDD, GIT, RabbitMQ, Redis, Microservices 🏢 Description: We are looking for a Tech/Team Lead Node.js Developer to join our team. In this role, you will spearhead the development of the innovative iGaming platform. Please note that office work 5 days from the EPAM office in Krakow, Gdansk, or Warsaw is required. Responsibilities Build and maintain our in-house platform while ensuring scalability and reliability Design and implement integrations with third-party APIs Take an active role in developing new features from scratch by contributing ideas and technical solutions Operate with high-load SQL and NoSQL databases (MongoDB, MySQL) Implement REST, GraphQL and WebSocket APIs Write and maintain unit and integration tests following TDD principles Collaborate with cross-functional teams to define, design and ship new features Use GIT for version control and take part in code reviews Handle message brokers such as RabbitMQ and Redis Follow microservice architecture principles in system design and implementation Requirements Strong knowledge of JavaScript and ECMAScript 6 standards 3+ years of commercial experience with Node.js and Nest.js 5+ years of commercial experience in web development Hands-on background in high-load SQL or NoSQL databases Commercial experience implementing REST, GraphQL and WebSocket APIs Solid understanding of TDD principles and proven experience writing tests Understanding of microservice architecture principles Practical experience with GIT version control Hands-on background with RabbitMQ and Redis Familiarity with MongoDB and MySQL databases Nice to have 2+ years of practical background in CI/CD, microservices architecture or containerization Hands-on familiarity with Kubernetes Practical exposure to the NATS messaging system Working knowledge of TypeScript We offer/Benefits We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

🏢 Summary: Senior Fullstack Developer role focused on extending a HubSpot-based CRM with new frontend, backend, and integration functionalities in a fully remote setup. The position involves building custom modules, managing license and trial features, and ensuring reliable integrations between internal and external systems. The developer will take ownership of data flows, webhooks, and system reliability within a small cross-functional team. 🗂️ Requirements: Minimum 5 years of experience as Fullstack Developer, Strong knowledge of React, Strong knowledge of TypeScript, Solid experience with Node.js, Experience with API development, Hands-on experience with webhooks, Experience with system integrations, Ability to extend existing backend codebases, Experience with AI-assisted coding tools, English C1 level, Polish B2 level 📃 Skills: React, TypeScript, Node.js, APIs, Webhooks, HubSpot, CRM, LMS, Authentication, Integrations, Monitoring, Observability, Claude 🏢 Description: Senior Fullstack Developer (React / Node.js) – Fully Remote Location: Fully remote Working hours: 10:00–18:00 (UK time), no travel required Rate: PLN 120–160 / hour Project duration: Initial 2 months, extension very likely Client: International financial institution Process: 2 interview stages Team: 2 Developers, Project Manager, Architect About the Role We are looking for an experienced Senior Fullstack Developer to join a small, cross-functional team working on the expansion of an existing CRM system. The project focuses on extending a HubSpot-based solution with new frontend, backend, and integration functionalities. You will play a key role in designing and building a new custom HubSpot application for internal users, developing license and trial management features, and integrating multiple internal and external systems. The role combines hands-on development with ownership of integrations and data flow reliability. Responsibilities Design and develop a new custom module within an existing HubSpot application Build user-facing interfaces for internal HubSpot users Implement a management panel for customer trials and licenses Integrate the application with existing internal APIs Identify and implement missing backend functionalities Develop integration code in Node.js connecting LMS webhooks with the authentication system Automate user account creation based on LMS-triggered events Automate user roles and permissions assignment based on learning system data Ensure data consistency, reliability, and observability across systems Handle error management, retries, and monitoring of webhook-based flows Requirements Minimum 5 years of professional experience as a Fullstack Developer Very strong knowledge of React and TypeScript Solid experience with Node.js and API development Hands-on experience with webhooks and system integrations Ability to read, understand, and extend existing backend codebases Practical experience using Claude Code or similar AI-assisted coding tools English proficiency at C1 level (daily collaboration with international clients) Polish proficiency at B2 level or higher (internal team communication) What We Offer Fully remote work Competitive hourly rate: PLN 120–160 Sports card (Multisport or equivalent) Private medical healthcare Access to learning and training platforms Small, experienced team with a clear technical direction High likelihood of project extension after 2 months