Backend Engineer (m/f/d)

Your mission at Mercanis

At Mercanis, we are building the Agentic AI Procurement Suite that powers the procurement of tomorrow, digital, transparent, and intelligent.

We are looking for a Backend Engineer who is excited to build modern, reliable backend services and grow their technical expertise over time. You will work closely with senior engineers, product managers, and designers to deliver features that bring real value to our customers.

This role is perfect for someone who already has hands-on backend experience and is ready to level up in a supportive engineering culture. You will gain exposure to production-scale systems, cloud services, and event-driven architecture, while learning best practices from experienced teammates.

Your Responsibilities on this role

• You will  build and  maintain  backend services  using Node.js and TypeScript, contributing to a modern, event-driven platform.
• You will  write clean, well-tested, and maintainable code , collaborating with peers during code reviews and pairing sessions.
• You will  work closely with product and design  to understand user needs and turn requirements into practical, scalable backend solutions.
• You will  participate  in technical discussions , bringing ideas, asking questions, and helping your team move from concept to implementation.
• You will  support the  delivery  lifecycle , contributing to testing, debugging, and  monitoring  to ensure smooth releases.
• You will  learn from senior engineers , gaining experience in cloud infrastructure, system design, and performance considerations.
• You will  stay curious and experiment , exploring new tools and contributing to continuous improvement in engineering practices.

Role requirements

• 2–4 years of professional experience as a backend or full-stack engineer, working with  c  and  TypeScript
• Solid understanding of  backend fundamentals , including asynchronous programming, API development, and data handling
• Experience working with  databases  (PostgreSQL or similar)
• Working knowledge of  unit testing and code quality practices
• A collaborative mindset, curiosity, and willingness to ask questions and grow
• Clear communication skills and a team-oriented attitude
• Fluency in English, spoken and written

Nice to have:

• Basic experience with  AWS  or other cloud environments
• Exposure to  event-driven systems  or microservices
• Some familiarity with  frontend frameworks  such as Svelte or React
• Experience with CI/CD pipelines, Docker, or  monitoring  tools

Tech you will work with:

• Backend: Node.js,  NestJS , TypeScript
• Infrastructure: AWS, serverless components
• Data: PostgreSQL, event streaming, messaging systems
• Tooling: GitHub, CI/CD, automated testing frameworks

Why to join us here at Mercanis?

• You will grow quickly with support from experienced engineers who enjoy mentoring
• You will work in a product-focused environment where your contributions matter and reach users
• You will collaborate in a culture built on learning, ownership, and teamwork
• You will experience a flexible remote setup in Spain , with the option to join our Berlin office for collaboration
• You will have opportunities to expand your responsibilities over time and influence how we build software