Senior Node.js Developer

Ignite the Future of Digital Advertising — as a Senior Node.js Developer!

Krakow/Warsaw-based opportunity with a hybrid, mostly remote work model (1 day in the office/month).

As a Senior Node.js Developer, you will be working for our client, a leading entity in the media industry dedicated to transforming digital advertising and identity management. Join a forward-thinking team responsible for developing scalable backend applications within a distributed architecture, contributing to innovative solutions that shape the advertising ecosystem. This role offers a unique chance to be at the forefront of digital innovation while advancing your career in a dynamic environment.

Your main responsibilities:

• Develop and maintain backend applications (Node.js, NestJS) for digital advertising serving and identity technologies.

• Create and sustain automated tests, develop monitoring tools, and ensure system reliability.

• Participate in the full software development lifecycle — from requirements analysis, design, deployment, to maintenance and optimization.

• Collaborate actively in R&D to define new solutions and future directions for the advertising ecosystem.

• Contribute to creating scalable, high-performance software solutions, applying best practices and design patterns.

• Engage in code reviews, documentation, and team knowledge sharing to ensure code quality and continuous improvement.

You're ideal for this role if you have:

• Minimum 5 years of programming experience in IT projects, with at least 5 years in Node.js application development.

• Higher education, preferably in Computer Science.

• Strong skills in Node.js, TypeScript, and frameworks such as NestJS and Fastify.

• Experience working with databases like MongoDB and Redis.

• Knowledge of AWS S3, object-oriented and functional programming, event-driven architecture, and design patterns.

• Proficiency with version control systems (GIT, GitHub).

• Familiarity with building and maintaining automated tests using frameworks like Jest, Jasmine, or Cypress.

• Good understanding of monitoring and performance optimization.

• Willingness to actively pursue professional growth.

• Good command of English for technical documentation and communication.

It is a strong plus if you have:

• Knowledge of digital or programmatic advertising.

• Experience with React.js and NoSQL databases.

• Familiarity with Unix/Linux environments and Bash scripting.

• Experience with Jenkins, Datadog, and Agile methodologies (Scrum/Kanban).

Language Required for the role:

• Polish (Communicative level).

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.

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 various industries. 

• 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. 

You can report violations in accordance with ITDS’s Whistleblower Procedure available here. 

Ref. number  

 8941