Senior Backend Developer (Node.js)

We’re looking for a Senior Backend Node.js Developer to take ownership of a core backend system and play a key role in shaping the product itself. You’ll work closely with the Product Owner to turn product ideas into robust, scalable solutions - not just implement tickets, but actively help define and refine the product using your technical expertise.

The product is a Node.js backend application where the heart of the system is a complex weekly meal menu generation algorithm. Performance, correctness, and maintainability of this logic are critical to the success of the platform.

RESPONSIBILITIES:

• Design, implement, and maintain a Node.js backend application
• Own and evolve the bi-weekly meal menu generation algorithm, including performance and edge-case handling
• Collaborate closely with the Product Owner to:
• Clarify requirements
• Propose technical solutions
• Help finalize product decisions based on feasibility and best practices
• Reference: FPYeZ3z7lbFuftsHDOt91tdnQ1PycRo3EemcLXEOhLasgNvPndFTzZUL1hSoA3us
• Design and optimize data models using MongoDB
• Ensure code quality through clean architecture, reviews, and testing
• Identify technical risks early and propose pragmatic solutions
• Improve system reliability, scalability, and maintainability over time
• Ensure code quality through clean architecture, reviews, and testing
• Identify technical risks early and propose pragmatic solutions
• Improve system reliability, scalability, and maintainability over time

TECHNICAL SKILLS:

• 5+ years of professional backend development experience
• Strong experience with Node.js (JavaScript or TypeScript)
• Solid understanding of backend architecture and system design
• Hands-on experience with MongoDB (schema design, indexing, performance tuning)
• Experience implementing and maintaining non-trivial business logic or algorithms
• Ability to communicate clearly with non-technical stakeholders (Product Owner, business side)
• Strong problem-solving skills and a product-focused mindset
• Comfortable taking ownership and making technical decisions

WOULD BE A PLUS:

• Experience with large data manipulation and organization
• Experience with testing strategies for complex business logic
• Background in performance optimization or algorithm-heavy systems
• Experience working in small, product-driven teams

PROFILE:

• ‍University degree in IT, electrical engineering or the equivalent in experience
• Minimum of 5 years of relevant work experience
• Strong interpersonal and communication skills, with proficiency in spoken and written English
• Critical independent positive thinker in resolving complex problems
• Customer-oriented team player with a positive attitude
• Good analytical and problem-solving skills

WHAT WE OFFER:

• Challenging projects in private sector
• Sustainable and socially beneficial projects in public sector
• Working with well-educated and experienced colleagues
• Paid certification and education in country and abroad (training, courses, exams etc.)
• Pleasant and friendly office environment
• Flexible working hours
• Parking
• Fruit, snacks and drinks
• Team buildings and Company celebrations (Secret Santa, New Year gifts for kids, Women’s Day)
• Private health care for all employees
• Paid prenatal test for pregnancy
• 100% paid sick leave
• Paid Gym & Fitness
• For the birth of a child, the employee receives 500 EUR bonus

SELECTION PROCESS:

• We will contact only short-listed candidates.
• We optimised the selection process. The first interview will be with HR, followed by the technical interview.  If the interview goes well, you may be invited to another technical interview or you will receive a job offer.