ELEKS Software Engineering and Development Office is looking for a Senior Full-Stack Developer (Node.js and React) in Poland or Croatia.

ABOUT PROJECT

Our customer is a global life sciences & healthcare organization whose mission is to improve the quality of people’s lives worldwide. Their digital products directly support life-saving therapies and healthcare research used by millions of patients and their families.

This company works with leading pharmaceutical, biotech, and government partners and plays a critical role in accelerating the delivery of new treatments to the market.

Tech Stack: React, Node.js, Typescript, Next.js, Fastify.

REQUIREMENTS

5+ years of professional experience in software engineering
Strong hands-on experience with Node.js and React in building and maintaining production-grade applications
Experience with Fastify is a strong advantage
Excellent knowledge of JavaScript, HTML, and CSS (experience with SCSS/LESS is a plus)
Proven experience in designing and consuming RESTful APIs (GraphQL knowledge is a plus)
Solid understanding of cloud-native development, CI/CD pipelines, and containerization (Docker, Kubernetes)
Strong grasp of software architecture, SOLID principles, and security best practices
Experience working with databases such as PostgreSQL, MongoDB, and Redis
Familiarity with monitoring and observability tools (Prometheus, OpenTelemetry) – nice to have
Exposure to AI/ML tools (e.g., GitHub Copilot, OpenAI API) is a plus
Strong problem-solving skills with a proactive ownership mindset
Upper-intermediate or higher level of English (written and spoken)
Willingness to travel occasionally to Ireland

RESPONSIBILITIES

Design, develop, and maintain reliable software in line with technical requirements, focusing on performance and availability
Analyze requirements, review designs, and estimate user stories following project methodology (Agile, Waterfall, etc)
Proactively propose code refactoring and optimization improvements according to the best software development practices and coding standards
Help maintain and improve high-quality standards within the developer community by sharing knowledge, conducting tech talks, and participating in the internal promotion verification process
Stay up-to-date with modern technology and obtain professional certifications
Support less experienced developers by providing training, distributing, and monitoring tasks

WHAT YOU WILL GET WITH ELEKS

Close cooperation with a customer
Challenging tasks
Competence development
Ability to influence project technologies
Team of professionals
Dynamic environment with low level of bureaucracy

ABOUT ELEKS

ELEKS is a custom software development company. We deliver value to our clients, thanks to our expertise and experience gained from working as a software innovation partner since 1991.

Our 2000+ professionals located in the Delivery Centers across Eastern Europe and sales offices in Europe and North America, provide our clients with a full range of software engineering services. These include product development, QA, R&D, design, technology consulting and dedicated teams.