Backend Engineer (m/f/d)

Mercanis; Madrid; Híbrido; EUR 40.000 - 55.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Flexible remote work

Mentorship from experienced engineers

Opportunities for professional growth

Descripción de la vacante

Mercanis is seeking a Backend Engineer to join our team and help build the next-generation AI Procurement Suite. In this role, you will develop reliable backend services using Node.js and TypeScript, collaborating closely with senior engineers and stakeholders.

We value a supportive engineering culture focused on mentorship and continuous improvement. This position allows for flexible remote work globally, with a preference for EU time zones, or a hybrid setup from our Berlin office.

Formación

• 2-4 years of professional experience as a backend or full-stack engineer.
• Solid understanding of backend fundamentals.
• Experience working with databases, preferably PostgreSQL.

Responsabilidades

• Build and maintain backend services using Node.js and TypeScript.
• Write clean, well-tested, and maintainable code.
• Collaborate with product and design to understand user needs.

Conocimientos

Backend fundamentals (asynchronous programming, API development, data handling)

Node.js

TypeScript

PostgreSQL

Unit testing

Collaboration and communication

Fluency in English

Herramientas

AWS

Docker

GitHub

Descripción del empleo

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.

This role can be fully remote globally with preference for EU time zones, or hybrid from our Berlin office.

Your Responsibilities

• 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 practicesa 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 enjoy flexible remote work, with the option to join our Berlin office
• You will have opportunities to expand your responsibilities over time and influence how we build software

We welcome applications from individuals of all backgrounds, experiences, and identities—regardless of gender, age, ethnicity or ability—as part of our commitment to a fair, transparent, and merit-based recruitment process.

We know the impostor syndrome can sometimes hold back incredible talent, so if you're doubting yourself, don’t. We genuinely want to hear from you, and encourage you to apply.