Tech Lead Backend Engineer Spain (m/f/d)

Permanent employee, Full-time · Spain

Your mission

Your Mission

As a Tech Lead Backend Engineer, you will drive backend initiatives, set architectural direction, and contribute to building a high-performing engineering culture. In this hands-on leadership role, you’ll balance deep technical execution with strategic planning and mentorship.

You’ll collaborate closely with engineers, product managers, and stakeholders to ensure backend systems align with business goals—while fostering a culture of quality, ownership, and continuous improvement.

Your Responsibilities
Your Responsibilities

  • Lead Engineering Execution: Drive design and implementation of robust, scalable backend systems using modern technologies like Node.js, NestJS, and event-driven/serverless architecture.
  • Define & Evolve Architecture: Own technical direction and system design across services, ensuring scalability, maintainability, and high availability.
  • Mentor & Grow Engineers: Support team members through coaching, technical guidance, and regular feedback to help them grow and thrive.
  • Set Engineering Standards: Champion best practices in coding, testing, documentation, observability, and deployment.
  • Collaborate Across Functions: Partner with product, design, and other engineering teams to shape the roadmap and balance delivery speed with technical quality.
  • Hands-on Development: Remain actively involved in coding, reviews, and technical problem solving while enabling others to succeed.
Your profile

Your Profile

Technical Leadership

  • 8+ years of backend development experience, with significant time spent designing systems and leading engineering efforts.
  • Proven experience owning architecture and making high-impact technical decisions.
  • Deep knowledge of JavaScript/TypeScript, Node.js, and microservice-based architectures.
  • Experience working with event-based systems and cloud-native/serverless environments.
  • Strong focus on performance, security, scalability, and operational excellence.

People & Process

  • Experience mentoring engineers and helping them grow professionally.
  • Strong collaboration skills — you're comfortable navigating trade-offs and building consensus across teams.
  • You’ve led technical projects or squads, and are able to balance hands-on work with coordination responsibilities.
  • Clear and concise communicator, both verbally and in writing.

Engineering Mindset

  • Passion for craftsmanship and building robust, elegant systems.
  • Champion of modern engineering practices: CI/CD, testing, observability, and continuous delivery.
  • Pragmatic and strategic: you focus on long-term value without over-engineering.

Please note that we are seeking support for our remote tech team in Spain

Why us?

What You Can Expect from Us

  • Lead high-impact projects that shape the future of our platform.
  • Join a supportive environment that values engineering excellence, autonomy, and growth.
  • Work with a modern stack and influence long-term tech direction.
  • Enjoy a hybrid setup with great teams in Barcelona or Berlin.

 

Interested? Then we’re excited to hear from you!

We believe diverse perspectives make us better – that’s why we strive to build an inclusive, discrimination-free work environment. We welcome individuals from all backgrounds – regardless of ethnicity, skin color, religion, nationality, gender, age, or physical or mental abilities. Discrimination has no place at Mercanis.

About us
About Us 

Agentic AI Procurement Suite – Procurement of Tomorrow


At Mercanis, we have a clear mission: to shape the procurement of tomorrow – digital, transparent, and intelligent.


Our Agentic AI Procurement Suite digitalizes the entire procurement process – from demand to supplier management and contract signing. Through the use of AI, operational tasks are fully automated, allowing procurement departments to focus on strategic matters. In this way, we create efficient structures, reduce manual efforts, and promote seamless collaboration along the entire supply chain. Our vision: transparent processes, time-optimized automations, and sustainable supplier relationships that deliver real value.


With over $30 million in Series A funding, supported by leading investors such as Patech, Average Vantage Point, and Speedinvest, we are well-positioned to continue expanding our vision. Since our founding, we’ve been working with a passionate team to shape the future of procurement. We are convinced: this is just the beginning.


That’s why we are looking for ambitious new team members and creative minds who are ready to take bold new steps with us and shape the future of procurement.

Your application!
Thank you for considering a career at Mercanis. Please fill out the following form. In case you are experiencing problems with the document upload, mail your documents to careers@mercanis.com.
Uploading document. Please wait.
Please add all mandatory information with a * to send your application.