BWI GmbH | Germany | 04xxx, 89xxx, 30xxx, 81xxx, 65xxx, 80xxx, 20xxx, 60xxx, 22xxx, 21xxx, 10xxx, 14xxx, 13xxx, 12xxx, 90xxx, 53xxx Bonn, Frankfurt, Hamburg, Hannover, München, Nürnberg, Ulm, Berlin, Leipzig | Permanent position | Full time / Home office | Published since: 08.01.2026 on stepstone.de
Lead Backend Developer - BundesMessenger (m/f/d)
As a primary digitization partner of the Bundeswehr, we provide stable, safe and efficient IT services in Germany and abroad, from basic operations to the field close to the application and thus contribute to the continuous increase in the leadership and operational capacity of the Bundeswehr. With over 7,700 colleagues, we operate and modernise one of the largest and most complex IT infrastructures in Germany. We are looking for responsible IT specialists who are convinced that the Bundeswehr-IT will further develop in challenging digitalization projects and thus contribute to Germany's security. Together with us, we are concerned about the future digital capability of the Bundeswehr. Lead Backend Developer (m/w/d) from now on and in full time, preferably in Bonn, alternatively nationwide at a BWI site. Want to participate in one of the most important open source solutions for public administration? With us you design the BundesMessenger – a secure communication platform for all of Germany. Be there and develop with us a product that really makes a difference. In our agile, interdisciplinary teams, all hands work in hand: from UX to frontend and backend to DevOps & Testing. If you want to build innovative software with passion and actively shape Germany's digital sovereignty, you are right in our team! !
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Your tasks • Your profile • What we offer
You significantly shape the technical vision and advance the strategic development of our backend systems The design and implementation of a highly scalable and secure application with Rust and Python are your responsibility As a professional head of the backend team, you take the lead, promote best practices through code reviews and act as a coach for the developers Your Hands-on mentality shows you in the development of challenging core components in Rust as well as in the design of APIs and supporting services in Python You define and establish sustainable standards for code quality, security according to the 'Secure by Design' principle, testing and our CI/CD processes
You can present a degree or comparable training in the IT field You have about 6 years of professional experience in the design and development of complex backend systems as well as professional leadership experience You have very good knowledge of Rust and Python as well as experience in building performant, incidental applications and mastering common Web/REST API frameworks (e.g. FastAPI, Django) You bring a deep understanding of microservices, distributed systems and asynchronous communication patterns with Security you think from scratch with (Secure by Design) and has practical experience in developing high-security applications (e.g. according to OWASP principles) In addition to good team and communication skills as well as decision-making and implementation strength, you are characterised by a sense of responsibility and a proactive, analytical and goal- and solution-oriented approach. You master the German language in word like writing and can communicate safely in English
Through varied and socially relevant tasks, we ensure the smooth operation of IT and the digitization of the Bundeswehr We allow you flexibility to reconcile work and private life, for example through mobile work or trust work time and the long-term construction of a value balance account for e.g. a sabbatical The BWI offers a market-oriented remuneration, a secure workplace and a premised and employee-funded occupational pension scheme You start with 30 days of annual holiday with option for individual adjustments Our Benefit app provides you with a monthly balance and tax relief on tickets for the ÖPNV
Location
 | BWI GmbH | |
| 89075 Bonn, Frankfurt, Hamburg, Hannover, München, Nürnberg, Ulm, Berlin, Leipzig | ||
| Germany |
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