Senior Backend Engineer

Vor 3 Tagen


Berlin, Berlin, Deutschland A11 Vollzeit 80.000 € - 120.000 € pro Jahr

As a key growth accelerator, A11 partners with Europe's most ambitious startups and scaleups, corporates and SMBs to connect them with top-tier talent ready to make an impact. 

Recently, we've paired with one of Project A's newest seed-stage investments to build their Tech Team and are looking for a Senior Backend Engineer (m/f/d) with extensive experience building scalable and robust software solutions in Python to join their Team. 

This is your chance to join an early stage startup that's well on its way to becoming a global category leader 

Join the A11 Ecosystem: a German-based startup that's harnessing AI technologies to improve working capital and create circular supply chains for industrial manufacturing companies.  

In this role, you'll:
  • Design, develop, and optimize secure, reliable, and high-performance backend systems that form the core of our client's product
  • Collaborate with Product and Data teams to design, build, and deploy features that delight users and address real customer needs
  • Architect and implement large-scale, scalable, and maintainable software solutions using modern best practices
  • Build on cloud-based solutions (e.g., AWS) to ensure a robust and scalable backend
  • Take ownership of DevOps pipelines to enhance deployment workflows, performance, reliability, and cost efficiency
  • Stay on top of technology trends and tools, ensuring our product evolves with customer demands

Current stack:

  • Cloud: AWS
  • Backend: Python, FastAPI
  • Data: Postgres, Neo4J
  • Infrastructure: Kubernetes and Terraform
Your Profile
  • Backend Development Expertise: 5+ years of experience with a strong focus on Python development and designing robust backend systems.
  • Scalable Architecture: Proven track record of designing and building large-scale, high-performance web applications and cloud-based services.
  • Collaboration & Drive: Strong communication skills, entrepreneurial mindset, and the ability to thrive in a fast-paced, ambitious environment.
  • Languages: Strong communication skills in English (German business fluency is preferred) 
  • Data Engineering Knowledge: Familiarity with data pipelines, modeling, and analytics is a plus. Experience with Apache Airflow is an advantage.
  • DevOps Experience: Proficiency in containerized applications (e.g., Kubernetes) and a solid understanding of deployment pipelines and cloud platforms is a plus
  • Experience with ERP systems like SAP and enterprise solutions is a plus

Please note that this position is based in Mannheim or Berlin. 

If you're eager to join the A11 Ecosystem and shape what's next, we want to hear from you

Our Commitment to Diversity and Inclusion

A11 is committed to diverse and equal opportunities hiring for all – applicants, candidates, and employees alike. We value humans – with all our glorious multifaceted backgrounds, perspectives, and experiences – and look forward to your application.



  • Berlin, Berlin, Deutschland NAVIT Vollzeit 90.000 € - 120.000 € pro Jahr

    We're on a mission to reshape how companies provide Corporate mobility to their employees. As a fast-growing SaaS startup in the mobility tech space, we help modern employers offer smart, flexible, and sustainable commuting solutions to their teams — from public transit to bike leasing and shared mobility services.Backed by forward-thinking investors and...


  • Berlin, Berlin, Deutschland MLabs Vollzeit 120.000 $ - 140.000 $ pro Jahr

    Senior/Lead Backend Engineer - FinTech & Crypto Innovation Location: Remote - Fully remote across Europe - they can do B2B or hire through EoR.Compensation: $120K - $140KWe are looking for a Senior/Lead Backend Engineer obsessed with good architecture, efficiency, and resilience to help us revolutionize the FinTech and crypto industry. This role is for a...


  • Berlin, Berlin, Deutschland Cornelsen Verlag GmbH Vollzeit 70.000 € - 95.000 € pro Jahr

    Die Cornelsen Gruppe mit Hauptsitz in Berlin zählt mit Marken wie Cornelsen, Duden, Cornelsen Experimenta sowie Veritas und dem Verlag an der Ruhr seit mehr als 75 Jahren zu den führenden Anbietern auf dem deutschsprachigen Bildungsmarkt. Mit über 1.600 Mitarbeiter*innen entwickeln wir innovative crossmediale Bildungslösungen von der frühen Kindheit bis...


  • Berlin, Berlin, Deutschland Choco Vollzeit 60.000 € - 120.000 € pro Jahr

    Choco is on a mission to enable the global food system to become sustainable by optimizing the way food is sold, ordered, distributed, and financed. Our AI-focused software connects distributors with their customers to operate waste-free and efficiently.  A problem of this magnitude requires a massive scale and only the best people will be able to solve it....


  • Berlin, Berlin, Deutschland Choco Vollzeit 60.000 € - 120.000 € pro Jahr

    Choco is on a mission to enable the global food system to become sustainable by optimizing the way food is sold, ordered, distributed, and financed. Our AI-focused software connects distributors with their customers to operate waste-free and efficiently. A problem of this magnitude requires a massive scale and only the best people will be able to solve it....


  • Berlin, Berlin, Deutschland Bolt Technology Vollzeit 80.000 € - 120.000 € pro Jahr

    We are looking for an experienced Senior Backend Software Engineer to work on unique product challenges: complex algorithms for demand prediction, optimal real-time pricing, routing, fraud detection, distributed systems and much more.About usWith over 200 million customers in 50+ countries, Bolt is one of the fastest-growing tech companies in Europe and...


  • Berlin, Berlin, Deutschland 5d7ae12c-dea7-4c56-a4c0-36b44a14120e Vollzeit 80.000 € - 120.000 € pro Jahr

    We are looking for an experiencedSenior Backend Software Engineerto work on unique product challenges: complex algorithms for demand prediction, optimal real-time pricing, routing, fraud detection, distributed systems and much more.About UsWith over 200 million customers in 50+ countries, Bolt is one of the fastest-growing tech companies in Europe and...


  • Berlin, Berlin, Deutschland Get Your Tech Talent Vollzeit 80.000 € - 120.000 € pro Jahr

    Key job characteristics:On-site/hybrid in BerlinStart ASAPOpen for freelancers as wellDeat Applicant, for one of our client - leading company designing AI automation solutions for business, we are looking for a Senior Backend Engineer (Ruby on Rails). You will play a key role in designing and implementing new features, optimizing existing systems, and...


  • Berlin, Berlin, Deutschland Grover Vollzeit 60.000 € - 100.000 € pro Jahr

    About GroverFounded in 2015, Grover enables consumers and businesses across Europe to subscribe to tech devices and comprehensive technology solutions - from individual smartphones, laptops, and wearables to full corporate device setups. The company offers access to over 1,000 unique tech items on flexible and financially convenient terms. A pioneer of the...

  • Backend Engineer

    Vor 6 Tagen


    Berlin, Berlin, Deutschland Mercanis Vollzeit 60.000 € - 120.000 € pro Jahr

    Your mission at MercanisAt 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,...