Senior Node.js Developers -Remote EU ( /J-X)

🏢 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

🏢 Summary: Junior Front-End Developer role focused on building and customizing websites and marketing platforms for international clients using modern front-end technologies and CMS solutions. The position involves implementing responsive views based on Figma designs and developing themes within CMS environments. It offers collaboration in a structured, process-driven setup with exposure to advanced marketing ecosystems. 🗂️ Requirements: Initial commercial experience (internship, freelance, or junior role), Experience with at least one CMS or eCommerce platform, Knowledge of HTML5, Knowledge of CSS3, Knowledge of JavaScript (ES6 basics), Understanding of responsive design, English proficiency B2+, Polish proficiency C1+ 📃 Skills: HTML5, CSS3, JavaScript, ES6, HubSpot, WordPress, Shopify, Magento, CMS, eCommerce, ResponsiveDesign 🏢 Description: Company Description We are an award-winning Elite HubSpot Partner based in Poland, working primarily with international clients. As the only recognized HubSpot partner in Central and Eastern Europe, we have delivered solutions to over 400 companies worldwide. We focus on building structured, well-designed digital products - without chaos, unnecessary meetings, or unclear processes. Job Description We’re looking for a Junior Front-End Developer with initial commercial experience and some exposure to CMS or eCommerce platforms. You’ll work closely with developers and project managers to deliver high-quality websites and marketing platforms for international clients. Your responsibilities: implementing front-end views based on Figma designs (HTML, CSS, JavaScript) customizing and developing themes in HubSpot CMS supporting ongoing development and optimization of websites ensuring responsiveness and cross-browser compatibility collaborating with the team to deliver tasks on time participating in code reviews and improving code quality Qualifications We are looking for someone who: has initial commercial experience (internship, freelance, or junior role) has worked with at least one CMS or eCommerce platform (e.g. HubSpot, WordPress, Shopify, Magento) knows HTML5, CSS3, and JavaScript (ES6 basics) understands responsive design writes clean and structured code communicates well in English (B2+) and Polish (C1+) is proactive and eager to learn Nice to have: experience with Git basic knowledge of performance optimization understanding of SEO fundamentals What we offer: remote-first work or office-based in Cracow, Poznan, or Warsaw — it’s up to you full-time job (30–40 hours per week possible depending on availability) european working hours (aligned with the CET time zone) flat structure where everyone owns their responsibilities work in a highly organized environment (clear processes, structured communication, no chaotic projects, no unnecessary calls) exposure to international clients and advanced CRM & marketing automation ecosystems flexible working hours great software and hardware (MacBooks) Recruitment Process Online conversation with our recruiter —he will tell you more about the company and the role, and ask about your experience and expectations A recruitment task A meeting with team members, where we’ll get to know you better and dive deeper into the responsibilities and working environment

🏢 Summary: B2B contract role for a Mid/Senior Node.js Developer focused on building and maintaining backend systems such as SaaS platforms, cloud-native applications, microservices, and event-driven architectures. The position involves architectural decision-making, backend development, and close collaboration with QA and DevOps in international projects. Candidates will work with modern cloud environments and have real impact on system design and product development. 🗂️ Requirements: 4+ years of backend development experience, Strong knowledge of Node.js, Experience with TypeScript or JavaScript, Experience with SQL databases, Experience with NoSQL databases, Understanding of microservices architecture, Understanding of serverless architecture, Understanding of event-driven systems, Hands-on experience with GCP, AWS, or Azure, Ability to write clean and maintainable code, Experience with unit and integration testing, English level minimum B2 📃 Skills: Node.js, TypeScript, JavaScript, SQL, NoSQL, GCP, AWS, Azure, REST, Docker, Microservices, Serverless, Testing 🏢 Description: We are a software house delivering long-term projects for international clients , and we are looking for Mid / Senior Node.js Developers to join our team on a B2B contract . You will work on various backend-focused projects , such as SaaS platforms, cloud-native systems, microservices, and event-driven architectures. We match projects to your experience and technical preferences, and you will have a real impact on architecture and product development. Responsibilities design, develop, and maintain backend services using Node.js (TypeScript / JavaScript) implement new features and improve existing functionalities participate in technical and architectural decision-making refactor and optimize key components of the system ensure code quality through clean code practices and testing collaborate closely with developers, QA, and DevOps engineers Requirements 4+ years of experience in backend development strong knowledge of Node.js (TypeScript / JavaScript) experience with SQL and NoSQL databases good understanding of cloud-based architectures (microservices, serverless, event-driven systems) hands-on experience with at least one cloud provider ( GCP, AWS, or Azure ) ability to write clean, well-structured, and maintainable code proactive mindset and willingness to grow technically good communication skills and English level min. B2B Example Tech Stack (depends on the project) Node.js / TypeScript Cloud platforms: GCP, Azure or AWS REST APIs & asynchronous communication SQL & NoSQL databases Docker Unit and integration testing

🏢 Summary: Senior Fullstack JavaScript Developer role focused on building cloud-integrated, data-driven solutions in an agile global team. The position involves designing and developing scalable software, solving identity and account management challenges, and integrating cloud and machine learning capabilities. Remote-friendly role (Warsaw-based) contributing to sustainable, business-critical products. 🗂️ Requirements: 5+ years of software development experience, Strong JavaScript knowledge including runtimes and APIs, Backend development experience with Node.js, Proficiency in TypeScript, Frontend development experience with React, Experience with AWS services (DynamoDB, Lambda, Step Functions), Experience designing technical architecture, Fluent English, Legal right to work in the EU 📃 Skills: JavaScript, TypeScript, Node.js, React, AWS, DynamoDB, Lambda, StepFunctions, REST, APIs, Git, Agile 🏢 Description: Unleash innovation at the intersection of cloud, data, and full-stack development — shape sustainable solutions for a better tomorrow! Warszawa-based opportunity with a remote work model (once every two weeks in the office). As a Senior Fullstack JavaScript Developer – Cloud & Data Solutions , you will be working for our client, a global leader in healthcare and agriculture dedicated to solving major global challenges in the spirit of environmental care. Join a forward-thinking team developing cutting-edge solutions in crop science, contributing to sustainable farming, resilient plants, and thriving communities. Your expertise will drive the development of cloud-integrated software, data analysis tools, and innovative machine learning integrations that foster a sustainable future. Your main responsibilities: Develop and support business-critical software solutions within an agile, global, product-oriented team Solve organization-wide challenges related to identity and account management Design and document technical architecture and software solutions across multiple teams Ensure the technical feasibility, quality, and high performance of all delivered solutions Evaluate and recommend new technologies to enhance efficiency and scalability Build and maintain relationships with key stakeholders and partner organizations Mentor junior engineers, fostering technical growth and innovation Continuously develop your technical skills and career in a fast-paced environment You're ideal for this role if you have: 5+ years of experience in software development or engineering Strong problem-solving skills, proactive attitude, and collaborative mindset Deep knowledge of JavaScript, including runtimes, APIs, and ecosystem Extensive experience with Backend development using Node.js Proficiency in TypeScript, with a track record of writing clean, maintainable code Strong front-end skills with React, build tools, and performance optimization Cloud expertise – working with AWS (DynamoDB, Lambda, Step Functions) Product-oriented mindset – understanding business domains and proposing pragmatic solutions Excellent command of English and experience working in agile, product-driven organizations Ability to collaborate effectively with a global team across time zones Willingness to learn, innovate, and grow in a dynamic environment It is a strong plus if you have: Knowledge of Medusa.js Experience with SAP and Salesforce integration Language required for the role: Fluent in English with excellent communication skills Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV in English or Polish, along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior Node.js Developer role focused on building and maintaining distributed backend systems for digital advertising and identity management using Node.js and NestJS. The position involves full lifecycle development, performance optimization, automated testing, and monitoring within a non-monolithic architecture. It also includes contributing to R&D initiatives to evolve the advertising ecosystem. 🗂️ Requirements: Higher education in Computer Science or related field, Minimum 5 years of programming experience, At least 5 years of Node.js development experience, Experience in backend application design, Experience in performance optimization, Experience in application monitoring, Experience with distributed (non-monolithic) architecture, Proficiency in automated testing development, Very good knowledge of Node.js and TypeScript, Very good knowledge of NestJS or Fastify, Experience with MongoDB and Redis, Experience with AWS S3, Knowledge of object-oriented and functional JavaScript, Experience in event-driven development, Knowledge of design patterns and best practices, Experience with Git and GitHub, English proficiency for technical documentation 📃 Skills: Node.js, TypeScript, NestJS, Fastify, MongoDB, Redis, AWS, S3, JavaScript, GIT, GitHub, Babel, Jest, Jasmine, Karma, Cypress, Datadog, Jenkins, Unix, Bash, React, NoSQL 🏢 Description: Shape the Future of Digital Advertising as a Senior Node.js Developer! Krakow/Warsaw-based opportunity with almost fully remote work model (1 day in the office/month). As a Senior Node.js Developer you'll be working for our client, a prominent player in the media industry. You will join the team and take responsibility for the development and maintenance of backend applications (Node.js, NestJS) in the field of digital advertising serving technologies and identity management, built in a distributed (non-monolithic) architecture. We are seeking someone actively engaged in improving the quality of solutions and processes, including the development of automated tests and monitoring tools, as well as co-creating new directions for the development of the advertising ecosystem (R&D). Your main responsibilities: Develop and maintain backend applications (Node.js, NestJS) for digital advertising serving and identity technologies. Develop and maintain automated tests (tools and test cases). Develop and maintain monitoring solutions. Actively participate in creating new solutions and development directions for the advertising ecosystem (R&D). Participate in the full software development lifecycle: from requirements clarification, through design, implementation, deployment, to maintenance and monitoring. You're ideal for this role if you have: Higher education, preferably in Computer Science. Minimum 5 years of programming experience in IT projects. At least 5 years of experience in Node.js project development. Experience in application design, performance optimization, and monitoring. Ability to decompose tasks effectively. Very good knowledge of: Node.js, TypeScript Frameworks such as NestJS, Fastify Databases: MongoDB, Redis AWS S3 bucket Object-oriented and functional programming in JavaScript Event-driven development Design patterns and best practices Version control systems: GIT, GitHub Babel tools Willingness for active professional growth English language skills sufficient for reading/writing technical documentation Nice to have: Knowledge of digital/programmatic advertising Familiarity with React.js and NoSQL databases Comfortable working in Unix environments, including writing bash scripts Experience with Jenkins Familiarity with Agile / Scrum / KANBAN methodologies Experience with Datadog Familiarity with test frameworks like Jest, Jasmine, Karma, Cypress Ability to write unit, functional, and integration tests

🏢 Summary: Senior Node.js Developer role focused on building and maintaining distributed backend systems for digital advertising and identity management. The position involves full lifecycle development, automated testing, monitoring, and performance optimization using Node.js and related technologies. The role is almost fully remote with occasional office presence in Krakow or Warsaw. 🗂️ Requirements: Higher education in Computer Science or related field, Minimum 5 years of programming experience, At least 5 years of commercial experience with Node.js, Strong knowledge of Node.js and TypeScript, Experience with NestJS or Fastify frameworks, Experience with MongoDB and Redis, Experience with AWS and S3, Experience in application design and performance optimization, Experience in building automated tests and monitoring solutions, Knowledge of event-driven architecture and design patterns, Proficiency with Git and GitHub, Good command of technical English 📃 Skills: Node.js, TypeScript, NestJS, Fastify, MongoDB, Redis, AWS, S3, JavaScript, Git, GitHub, Babel 🏢 Description: Shape the Future of Digital Advertising as a Senior Node.js Developer! Krakow/Warsaw-based opportunity with almost fully remote work model (1 day in the office/month). As a Senior Node.js Developer you'll be working for our client, a prominent player in the media industry. You will join the team and take responsibility for the development and maintenance of backend applications (Node.js, NestJS) in the field of digital advertising serving technologies and identity management, built in a distributed (non-monolithic) architecture. We are seeking someone actively engaged in improving the quality of solutions and processes, including the development of automated tests and monitoring tools, as well as co-creating new directions for the development of the advertising ecosystem (R&D). Your main responsibilities: Develop and maintain backend applications (Node.js, NestJS) for digital advertising serving and identity technologies. Develop and maintain automated tests (tools and test cases). Develop and maintain monitoring solutions. Actively participate in creating new solutions and development directions for the advertising ecosystem (R&D). Participate in the full software development lifecycle: from requirements clarification, through design, implementation, deployment, to maintenance and monitoring. You're ideal for this role if you have: Higher education, preferably in Computer Science. Minimum 5 years of programming experience in IT projects. At least 5 years of experience in Node.js project development. Experience in application design, performance optimization, and monitoring. Ability to decompose tasks effectively. Very good knowledge of: Node.js, TypeScript Frameworks such as NestJS, Fastify Databases: MongoDB, Redis AWS S3 bucket Object-oriented and functional programming in JavaScript Event-driven development Design patterns and best practices Version control systems: GIT, GitHub Babel tools Willingness for active professional growth English language skills sufficient for reading/writing technical documentation Nice to have: Knowledge of digital/programmatic advertising Familiarity with React.js and NoSQL databases Comfortable working in Unix environments, including writing bash scripts Experience with Jenkins Familiarity with Agile / Scrum / KANBAN methodologies Experience with Datadog Familiarity with test frameworks like Jest, Jasmine, Karma, Cypress Ability to write unit, functional, and integration tests

🏢 Summary: Senior Node.js Developer role focused on building and maintaining backend systems for digital advertising and identity management within a distributed architecture. The position involves full lifecycle development, performance optimization, monitoring, and R&D initiatives in a hybrid or remote model. The role requires strong expertise in Node.js and related technologies to deliver scalable, high-performance solutions. 🗂️ Requirements: Higher education in Computer Science or related field, Minimum 5 years of professional programming experience, Minimum 5 years of hands-on Node.js experience, Strong knowledge of application design and performance optimization, Experience with backend frameworks (NestJS or Fastify), Experience with MongoDB and Redis, Experience with AWS services (including S3), Knowledge of event-driven architecture and design patterns, Experience with Git and GitHub, Experience working in Unix environments and Bash scripting, Good command of English (technical documentation), Communicative Polish, Legal right to work in the European Union 📃 Skills: Node.js, TypeScript, NestJS, Fastify, MongoDB, Redis, AWS, S3, JavaScript, Git, GitHub, Bash, Unix, Babel, OOP, FP, EventDriven, DesignPatterns, Monitoring, Testing, Polish, English 🏢 Description: Unleash the Future of Digital Advertising — Elevate Backend Architectures with Cutting-Edge Node.js Solutions! Krakow/Warsaw-based opportunity with almost fully remote work model (only 1 day in the office/month). As a Senior Node.js Developer , you will be working for our client, a leading innovator in the media industry. You will join a dynamic team dedicated to advancing digital advertising technologies, focusing on backend development and identity management in a distributed, non-monolithic architecture. This role offers a chance to influence the evolution of advertising ecosystems through innovation and R&D initiatives, fostering your professional growth in a fast-paced environment. Your main responsibilities: Develop and maintain backend applications (Node.js, NestJS) for digital advertising serving and identity technologies. Develop and maintain automated tests (tools and test cases). Develop and maintain monitoring solutions to ensure system reliability. Actively participate in creating new solutions and shaping development directions (R&D) within the advertising ecosystem. Participate in the full software development lifecycle: from requirements clarification, through design and implementation, to deployment, maintenance, and monitoring. You're ideal for this role if you have: Minimum of 5 years of programming experience in IT projects. At least 5 years of experience in Node.js project development. Strong knowledge of application design, performance optimization, and system monitoring. Proficiency in Node.js, TypeScript, NestJS, Fastify. Experience with MongoDB, Redis, AWS S3. Ability to decompose tasks effectively and work collaboratively. Good understanding of object-oriented and functional programming in JavaScript. Familiarity with event-driven development, design patterns, and best practices. Experience with version control systems: GIT, GitHub. Knowledge of Babel tools. Willingness for active professional growth. Excellent communicative skills in Polish and sufficient English for reading/writing technical documentation. It is a strong plus if you have: Knowledge of digital/programmatic advertising. Familiarity with React.js and NoSQL databases. Experience working in Unix environments, including writing bash scripts. Hands-on experience with Jenkins. Familiarity with Agile, Scrum, or KANBAN methodologies. Experience with Datadog. Knowledge of test frameworks like Jest, Jasmine, Karma, Cypress. Ability to write unit, functional, and integration tests. Language Required for the role: Communicative proficiency in Polish. English skills sufficient for technical documentation. Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Fully remote Senior Node.js Backend Engineer role focused on building and scaling cloud-native microservices in a serverless AWS environment. The position involves designing high-performance REST APIs, provisioning infrastructure with Terraform, and optimizing distributed systems for scalability and resilience. You will contribute to CI/CD pipelines and ensure robust, production-grade backend services. 🗂️ Requirements: 4+ years of professional experience in Node.js server-side development, 2+ years of experience in system and data integration, transformation, and validation, Strong experience designing and deploying REST APIs, Hands-on experience with Terraform for AWS infrastructure provisioning, Practical experience with AWS services: Lambda, SQS, CloudWatch, S3, Deep understanding of distributed systems, scalability, and failure handling, Experience with CI/CD pipelines and GitHub Actions, Proficiency with shell scripting and Linux command-line tools 📃 Skills: Node.js, AWS, Lambda, SQS, CloudWatch, S3, Terraform, REST, CICD, GitHubActions, Shell, Linux, DistributedSystems, DynamoDB, DocumentDB, Streaming 🏢 Description: Ignite innovation at the forefront of cloud-native backend development — shape scalable microservices for dynamic digital ecosystems. Fully-remote opportunity! As a Senior Node.js Backend Engineer , you will be working for our client, a leading technology-driven organization dedicated to building resilient distributed systems that power tomorrow's digital experiences. You will contribute to designing and implementing high-performance microservices on AWS, enhancing system robustness, scalability, and flexibility. Join us and be part of pioneering solutions that redefine industry standards and accelerate your career growth. Your main responsibilities: Develop and maintain REST-like APIs and backend services using Node.js in a serverless AWS environment Design, implement, and optimize infrastructure-as-code configurations with Terraform for AWS services such as Lambda, SQS, CloudWatch, and S3 Integrate complex data streams, transform, validate, and analyze data within distributed systems Collaborate with cross-functional teams to ensure system robustness, scalability, and failure resilience Contribute to CI/CD pipelines utilizing GitHub Actions, and enforce best practices in version control Troubleshoot and resolve operational issues within AWS infrastructure and backend services Maintain comprehensive documentation and ensure high-quality code standards You're ideal for this role if you have: At least 4 years of professional experience in Node.js server-side development 2+ years of experience in system/data integration, transformation, and validation Deep understanding of distributed systems, including scalability, elasticity, replication, and failure handling Strong experience designing and deploying REST-like APIs Hands-on experience with Terraform for AWS infrastructure provisioning Practical knowledge of serverless AWS services: Lambda, SQS, CloudWatch, S3 Solid grasp of GitHub tool suite, CICD pipelines, and shell scripting Good command of Linux command line tools Excellent communication skills in English Problem-solving mentality with a focus on business impact It is a strong plus if you have: Experience with DynamoDB, DocumentDB, and Streaming services Language Required for the role: Fluent English Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. We offer you At ITDS , you will work on innovative and impactful technology projects for international companies across multiple industries in Europe and beyond. We create an environment for ambitious, driven professionals who want to grow, deliver value, and build their careers in modern IT and digital transformation. Our offer includes: Stable and long-term cooperation with attractive conditions Opportunities to develop your technical expertise across various industries and technologies The chance to work on high-impact, strategic IT and digital transformation projects A clear career path and the opportunity to grow quickly by contributing to diverse client initiatives over time International environment , knowledge sharing, social events, and training opportunities Access to an attractive medical package Access to the Multisport program Access to learning platforms such as Pluralsight Flexible working hours and remote work options #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data. # 8942

🏢 Summary: Senior Full Stack Engineer role focused on building scalable and resilient applications within a cross-functional engineering team. The position involves backend and frontend development using modern JavaScript frameworks and enterprise databases, with containerization and CI/CD practices. Available as hybrid or remote engagement across several European countries. 🗂️ Requirements: Experience with Node.js, Experience with React, Strong knowledge of PL/SQL, Experience with Oracle databases, Experience with Docker, Experience with Kubernetes or ECS, Experience with CI/CD pipelines, Experience with Jenkins or GitLab CI or GitHub Actions, Experience with MongoDB or DynamoDB or PostgreSQL 📃 Skills: Node.js, React, PL/SQL, Oracle, Docker, Kubernetes, ECS, CI/CD, Jenkins, GitLab, GitHub, MongoDB, DynamoDB, PostgreSQL 🏢 Description: Dear Consultant, We are looking for an experienced Senior Full Stack Engineer to join a cross-functional engineering team focused on building scalable and resilient applications. 📍 Poland / Romania / Bulgaria / Spain / Czech Republic / Slovakia 🏠 Hybrid / Remote 💼 Employment Contract / B2B (depending on country) Must Have: • Node.js • React • PL/SQL • Oracle databases • Docker • Kubernetes / ECS • CI/CD • Jenkins / GitLab CI / GitHub Actions • MongoDB / DynamoDB / PostgreSQL Nice to Have: • Java / SpringBoot • Kafka • Microservices • Terraform / CloudFormation • GCP / BigQuery • German language 📩 DM me if interested. marcillina.tietjen@dcvtechnologies.co.uk DCV/CKL/JO/Re:18.05.2026

🏢 Summary: Senior Fullstack JavaScript Developer role focused on building cloud-integrated and data-driven solutions within a global agile team. The position involves designing scalable architectures, developing business-critical applications, and integrating machine learning components in a cloud environment. The role combines backend, frontend, and AWS cloud expertise to deliver high-performance, sustainable digital products. 🗂️ Requirements: 5+ years of software development experience, Strong knowledge of JavaScript and its ecosystem, Extensive backend experience with Node.js, Proficiency in TypeScript, Strong frontend experience with React, Experience with AWS services (DynamoDB, Lambda, Step Functions), Experience designing technical architecture, Fluent English, Legal right to work in the EU 📃 Skills: JavaScript, TypeScript, Node.js, React, AWS, DynamoDB, Lambda, StepFunctions, Medusa.js, SAP, Salesforce 🏢 Description: Unleash innovation at the intersection of cloud, data, and full-stack development — shape sustainable solutions for a better tomorrow! Warszawa-based opportunity with a remote work model (once every two weeks in the office). As a Senior Fullstack JavaScript Developer – Cloud & Data Solutions , you will be working for our client, a global leader in healthcare and agriculture dedicated to solving major global challenges in the spirit of environmental care. Join a forward-thinking team developing cutting-edge solutions in crop science, contributing to sustainable farming, resilient plants, and thriving communities. Your expertise will drive the development of cloud-integrated software, data analysis tools, and innovative machine learning integrations that foster a sustainable future. Your main responsibilities: Develop and support business-critical software solutions within an agile, global, product-oriented team Solve organization-wide challenges related to identity and account management Design and document technical architecture and software solutions across multiple teams Ensure the technical feasibility, quality, and high performance of all delivered solutions Evaluate and recommend new technologies to enhance efficiency and scalability Build and maintain relationships with key stakeholders and partner organizations Mentor junior engineers, fostering technical growth and innovation Continuously develop your technical skills and career in a fast-paced environment You're ideal for this role if you have: 5+ years of experience in software development or engineering Strong problem-solving skills, proactive attitude, and collaborative mindset Deep knowledge of JavaScript, including runtimes, APIs, and ecosystem Extensive experience with Backend development using Node.js Proficiency in TypeScript, with a track record of writing clean, maintainable code Strong front-end skills with React, build tools, and performance optimization Cloud expertise – working with AWS (DynamoDB, Lambda, Step Functions) Product-oriented mindset – understanding business domains and proposing pragmatic solutions Excellent command of English and experience working in agile, product-driven organizations Ability to collaborate effectively with a global team across time zones Willingness to learn, innovate, and grow in a dynamic environment It is a strong plus if you have: Knowledge of Medusa.js Experience with SAP and Salesforce integration Language required for the role: Fluent in English with excellent communication skills Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV in English or Polish, along with a statement confirming your consent to the processing and storage of your personal data. We offer you: ITDS Business Consultants is involved in many various, innovative and professional IT projects for international companies in the financial industry in Europe. We offer an environment for professional, ambitious, and driven people. The offer includes: ●     Stable and long-term cooperation with very good conditions ●     Enhance your skills and develop your expertise in the financial industry ●     Work on the most strategic projects available in the market ●     Define your career roadmap and develop yourself in the best and fastest possible way by delivering strategic projects for different clients of ITDS over several years ●     Participate in Social Events, training, and work in an international environment ●     Access to attractive Medical Package ●     Access to Multisport Program ●     Access to Pluralsight ●     Flexible hours & remote work Internal job number # 6966 You can report violations in accordance with ITDS’s Whistleblower Procedure available here .