Senior Node.js Developer — Digital Advertising and Backend Architecture

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.