Skip to content
New Job?Nejo!

Your personal AI career agent

A1A11

Senior Backend Engineer(m/w/x)

Berlin
Full-timeOn-siteSenior
AI/ML

Designing and implementing complex backend systems for a global trade supply chain platform. 7+ years backend engineering experience with Java (Spring Boot) required. Entrepreneurial freedom, pre-validated business model.

Requirements

  • 7+ years backend engineering experience
  • Track record of owning critical systems in production
  • Deep expertise in Java (Spring Boot)
  • Strong familiarity with Python
  • Comfort navigating polyglot codebase
  • Designing distributed systems
  • Event-driven architecture experience
  • Microservices experience
  • Data pipelines experience
  • Strong command of PostgreSQL
  • Experience with cloud-native infrastructure on AWS
  • Experience through hypergrowth or scale challenges
  • Multiplier: making engineers better
  • Providing feedback and technical clarity
  • Comfortable operating in ambiguity
  • Ability to shape requirements

Tasks

  • Design and implement complex backend systems
  • Maintain backend systems long-term
  • Lead technical discussions and engineering decisions
  • Document technical trade-offs clearly
  • Mentor junior and mid-level engineers
  • Conduct code reviews and pairing sessions
  • Provide structured feedback to team members
  • Identify and address systemic infrastructure weaknesses
  • Propose and execute infrastructure improvements
  • Collaborate with engineering, product, and data teams
  • Align technical direction with business goals
  • Improve backend observability, reliability, and performance
  • Participate in technical interviews
  • Help define the engineering bar

Work Experience

  • 7 years

Education

  • Bachelor's degreeOR
  • Master's degree

Languages

  • EnglishBusiness Fluent

Tools & Technologies

  • Java
  • Spring Boot
  • Python
  • LangGraph
  • LLM APIs
  • OpenAI
  • Anthropic
  • Gemini
  • PostgreSQL
  • Kinesis
  • AWS
  • Terraform
  • GitHub Actions
  • Node.js
  • TypeScript
  • Next.js
  • React

Benefits

Informal Culture

  • Entrepreneurial freedom

Other Benefits

  • Pre-validated business model
  • Collaboration with top-tier investors

Startup Environment

  • Experienced founding team
  • Collaboration with angels
  • Collaboration with leading market experts
Find the original job posting in its most current version here. Nejo automatically captured this job from the website of A11 and processed the information on Nejo with the help of AI for you. Despite careful analysis, some information may be incomplete or inaccurate. Please always verify all details in the original posting! Content and copyrights of the original posting belong to the advertising company.

  • The AI-driven trade platform

    Backend Engineer - Supply Chain & Logistics(m/w/x)

    Full-timeOn-siteSenior
    Berlin
  • A11

    Backend Engineer - FinTech(m/w/x)

    Full-timeOn-siteSenior
    Berlin
  • The company

    Sr. Backend Engineer(m/w/x)

    Full-timeOn-siteSenior
    Berlin
  • The AI-driven trade platform

    Backend Engineer - FinTech(m/w/x)

    Full-timeOn-siteSenior
    Berlin
  • A11

    Backend Engineer (AI Agents/Workflows)(m/w/x)

    Full-timeOn-siteExperienced
    Berlin
View all 100+ similar jobs

Nejo is an AI – results may be incomplete or contain mistakes