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.Â

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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.Â

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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.Â
• You will write clean, well-tested, and maintainable code , collaborating with peers during code reviews and pairing sessions.Â
• You will work closely with product and design  to understand user needs and turn requirements into practical, scalable backend solutions.Â
• You will participate  in technical discussions , bringing ideas, asking questions, and helping your team move from concept to implementation.Â
• You will support the delivery  lifecycle , contributing to testing, debugging, and monitoring  to ensure smooth releases.Â
• You will learn from senior engineers , gaining experience in cloud infrastructure, system design, and performance considerations.Â
• 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 Â
• Solid understanding of backend fundamentals , including asynchronous programming, API development, and data handlingÂ
• Experience working with databases  (PostgreSQL or similar)Â
• Working knowledge of unit testing and code quality practices Â
• A collaborative mindset, curiosity, and willingness to ask questions and growÂ
• Clear communication skills and a team-oriented attitudeÂ
• Fluency in English, spoken and written

Nice to have:Â

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

Tech you will work with:Â

• Backend: Node.js, NestJS , TypeScript
• Infrastructure: AWS, serverless componentsÂ
• Data: PostgreSQL, event streaming, messaging systemsÂ
• 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 collaborationÂ
• You will have opportunities to expand your responsibilities over time and influence how we build software