Senior Backend Engineer (f/m/d)
Confirmed on the employer's own hiring board on Oct 21, 2026. First seen by Alion on Oct 3, 2026.
We are Formunauts - a fast-growing SaaS company with a clear mission:
We support more than 100 charities in Europe and Latin America in achieving their goals. Our clients include Amnesty International, Doctors Without Borders, WWF and Greenpeace.
Since 2014, our award-winning software has helped make fundraising campaigns more efficient, increasing the funds available for meaningful projects. Since 2020, we have been operating the world’s first marketplace for face-to-face fundraising, opening up new potential for organizations and social impact startups.
In short: We build technology that enables real-world impact.
Your Role
We are looking for a Senior Backend Engineer who enjoys taking ownership, thinking beyond individual tickets and actively shaping a growing platform.
In our environment, backend engineering means more than implementation. You will be involved in technical decision-making, architectural evolution and improving how we build and run our systems.
What You’ll Do
Drive the further development of our backend systems and services
Take part in architectural decisions and backlog prioritization
Refactor and improve existing codebases, reducing technical debt
Build and enhance APIs to make our platform more accessible and scalable
Automate internal processes to support business teams and customers
Take shared ownership of DevOps topics, including deployment, monitoring and reliability
Orchestrate Docker containers for stable deployments on AWS
Build and maintain automated deployment pipelines (e.g. Drone.io, Cypress)
Create and maintain clean, sustainable documentation
What You Bring
Strong experience with backend development in a production environment
In-depth understanding of Django and Django REST framework or similar
Python proficiency (must-have)
Hands-on experience with DevOps practices, including CI/CD, containerization and cloud environments
Experience with Docker and AWS; OpenSearch and monitoring tools are a plus
A pragmatic, quality-driven engineering mindset with a sense of ownership
Ability to balance code quality, delivery speed and system reliability
Enjoyment of working in a collaborative team that shares responsibility and impact
Bonus skill: a surprisingly solid taste in bad music for the perfect sprint song
If you are excited about building scalable backend systems that actually make a difference, and you want to grow together with a purpose-driven team, we’d love to hear from you.
The actual salary depends on your qualifications and experience and is between3,900 € and 5,000 € gross per month (on a 38.5 hour basis). The salary is paid 14 times per year.