Senior Backend Engineer

Posted 3 Days Ago
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Girona, Gerona, Cataluña, ESP
In-Office
Senior level
Fintech • Software • Financial Services
The Role
Design, develop, and maintain scalable, secure backend systems using Python, Django, DRF, FastAPI, Docker, and AWS. Build service integrations, optimize APIs, write automated tests, document systems, and ensure production reliability. Collaborate with frontend, DevOps, product, and other stakeholders to deliver business-aligned solutions. Participate in code reviews, improve engineering processes, share technical expertise, and mentor junior and mid-level backend engineers.
Summary Generated by Built In
About the role: 

As a Senior Backend Engineer, you play a crucial role in designing, developing, and maintaining scalable, high-performance backend systems that support fundcraft’s platform. You work closely with cross-functional departments, including frontend engineers and product managers, to deliver robust backend solutions that align with business objectives. Your focus is on hands-on development, ensuring the reliability, security, and maintainability of the platform, while addressing complex technical challenges in production.

This is a position based in Spain and reporting directly to the Lead Backend Engineer.

Key responsibilities:
  • Implementing scalable, high-performance features and integrations between services in a high-demand system, ensuring reliability, efficiency, and seamless user experience.
  • Develop, implement, and maintain end to end solutions using technologies such as Python, Django, DRF, FastAPI, Docker and AWS Cloud. 
  • Use AI tools like Cursor and Claude Code to help you write the code.
  • Write automated unit tests and integration tests to validate backend functionality and ensure code quality and reliability. 
  • Maintain comprehensive documentation of backend systems, APIs, and processes to facilitate knowledge transfer and ensure code maintainability. 
  • Share technical insights and best practices with unit members, and contribute to the continuous improvement of engineering processes and workflows.
  • Proactively provide technical knowledge and support to junior and other senior backend engineers.
  • Work closely with DevOps engineers, product managers, and other stakeholders to understand requirements and deliver high-quality solutions that meet business objectives and user needs. 
  • Communicate effectively with other members, providing regular updates on project status, challenges, and progress.

RequirementsSkills & Expected Behaviours:
  • Develop scalable, high-performance backend systems that support business objectives and platform needs.
  • Collaborate with cross-functional departments to ensure seamless integration of backend solutions with frontend applications.
  • Optimise APIs for performance, scalability, and security, ensuring they meet the technical requirements of various applications.
  • Contribute to code quality by participating in code reviews and adhering to best practices in software development.
  • Mentor mid and junior engineers by providing guidance, sharing technical insights, and supporting their growth.
  • Maintain up-to-date documentation of backend systems, APIs, and processes to ensure code maintainability and knowledge sharing.

Benefits

Why Join Us:

  • Join a culture that celebrates creativity and welcomes innovative, disruptive ideas, empowering you to make a real impact.
  • Immerse yourself in a fast-paced, diverse workplace where you'll have the chance to collaborate and learn from specialists across various fields, fostering personal and professional growth.
  • Embrace automation and seamless tech integration in your workflows, while our platform boosts operations through tech leverage, ensuring you stay ahead of the curve and updated with new technologies.
  • Enjoy an attractive compensation package that recognizes your contributions and dedication to our shared success, rewarding you fairly for your hard work.
  • Work in a comfortable, ergonomic environment within our spacious, modern offices located conveniently in the heart of Girona, just minutes away from the train station where you can enjoy daily fresh fruit and coffee!
  • Monthly afterworks organised by the company to unwind and strengthen team connections.
  • Enjoy flexible entry hours that help you balance your personal life with your work commitments.

Skills Required

  • Experience developing scalable, high-performance backend systems
  • Proficiency with Python
  • Experience with Django and Django REST Framework
  • Experience with FastAPI
  • Experience with Docker
  • Experience with AWS Cloud
  • Ability to develop and optimize secure, scalable APIs
  • Experience writing unit and integration tests
  • Experience with code reviews and software development best practices
  • Ability to mentor junior and mid-level engineers
  • Ability to document backend systems, APIs, and processes
  • Ability to collaborate with cross-functional engineering, DevOps, and product teams
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The Company
HQ: Luxembourg
125 Employees
Year Founded: 2021

What We Do

Your partner in digital fund operations. Founded in 2021, fundcraft is Europe’s premier provider of end-to-end digital fund operations for the alternative asset management industry. Its integrated product offering encompasses every aspect of the fund lifecycle, from fundraising and investor onboarding to daily operations, data management, and reporting. fundcraft’s digital platform offers an open, collaborative, and transparent operating system that centralises data, processes, and interactions into a single source of truth. This enables seamless collaboration among stakeholders—fundcraft delivery experts, asset managers, accountants, auditors, tax advisors, and depositary banks—on a unified platform. By combining cutting-edge technology with expert product delivery, fundcraft automates every aspect of fund administration, including transfer agency, accounting, and risk management, enhancing efficiency, transparency, and control throughout the fund lifecycle. As a CSSF-licensed AIFM and central administrator, fundcraft supports over 220 Luxembourg-domiciled funds for Venture Capital, Funds of Funds and Private Equity firms, representing more than €11 billion in commitments​.

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