Senior Backend Engineer (Berlin)

Contract type
Ongoing
Work mode
Remote
Experience
Senior · 5+ years

Job description

A Senior Backend Developer role at Kadmos, a regulated salary payment provider in the shipping industry, responsible for owning core backend systems and building secure, scalable financial solutions.

At a glance

Work mode
Remote
Languages
English – fluent

What you'll do

  • Develop and maintain core backend systems
  • Build reusable libraries
  • Implement complex financial components
  • Integrate with external service providers
  • Take full ownership of responsibilities while collaborating closely with product, compliance, and engineering teams
  • Design systems that handle secure financial transactions

What we're looking for

  • 5+ years of professional experience in backend engineering with Java and Spring Boot
  • Master's degree in Computer Science, Mathematics, or Physics
  • Expertise in Spring Boot and strong knowledge of modern frameworks, SDKs, API standards, and libraries
  • Solid experience with unit, integration, and performance testing (JUnit, Spock, Testcontainers)
  • Strong understanding of building secure, reliable, and scalable systems, ideally in a regulated or financial services context
  • Proactive, ambitious, and collaborative mindset with a track record of delivering high-quality solutions
  • Fluency in English

Nice to have

  • Familiarity with React
  • Experience in building financial products

Benefits

  • Opportunity to work in a company with direct social impact
  • Attractive compensation
  • Open & International environment
  • Fantastic location in the heart of Berlin & flexible WFH policy
  • Free lunch at the office
  • Latest equipment, to ensure you have everything needed

Apply

About Kadmos

Kadmos is a Berlin-based startup founded in 2021 by MIT graduates Justus Schmueser and Sasha Makarovych to bring fintech, low margins, and transparent FX to industries riddled with opaque mark-ups, kickbacks, and physical cash transactions. It is a regulated salary payment provider in the shipping industry.

Mission

To revolutionise salary payments to migrant workers

Key facts

  • 2021
  • Berlin
  • Fintech
  • Backed by renowned VCs Addition and Atlantic Labs
  • Has raised more than $39 million since 2021
  • Founded by MIT graduates Justus Schmueser and Sasha Makarovych

Partners & customers

AdditionAtlantic Labs

What they value

  • Diversity
  • Transparency
  • Teamwork