Remote Senior Java Developer (m/f/x)

CRX Markets AG; Germany (OH); Remote; USD 80,000 - 110,000; Full time

Benefits offered by this job

State-of-the-art hardware

Annual team gatherings

Flexible workflows

Enhanced AI tools

Job summary

A leading financial technology company is seeking a seasoned software engineer to design and build microservices for payment flows. Candidates must have strong skills in Java and Spring Boot, with a focus on distributed systems, RESTful APIs, and solid database management. This role offers a fully remote freelancing setup allowing team autonomy and access to advanced development tools. Join to experience ownership in delivery and innovate within a vibrant international team.

Qualifications

• 6+ years of production experience with Java and Spring Boot, focusing on depth over quantity.
• Ability to think in distributed systems with clear understanding of CAP theorem and failure modes.
• Designing RESTful APIs and service boundaries.

Responsibilities

• Design and build microservices for complex payment flows with strict performance requirements.
• Translate business requirements into technical solutions.
• Collaborate on system design ensuring scale, resilience, and security.

Skills

Java

Spring Boot

Distributed systems

RESTful APIs

Relational databases

Messaging systems

Containers

Kafka

Kubernetes

AWS

React

TypeScript

Job description

CRX Markets operates as the leading global marketplace for working capital financing, connecting corporates and financing partners for competitive, market-driven solutions on both sides of the balance sheet. Trusted by leading companies including BASF, Mercedes-Benz, Nestlé, and Lufthansa, we enable treasury teams to optimize cash flow and strengthen financial agility, resilience, and sustainability. Our platform processes over €30B in annual transaction volume and helps businesses unlock working capital - getting suppliers paid faster, giving buyers payment flexibility, and connecting both to the funding that makes it possible.

Headquartered in Munich, our growing team of over 100 professionals is shaping the future of working capital solutions.

Your Role

• Own critical services - Design and build microservices processing complex payment flows with strict performance requirements
• Influence product direction - Translate business requirements into elegant technical solutions
• Shape architecture - Collaborate on system design for scale, resilience, and security
• Raise the bar - Lead and engage in code reviews, mentor teammates, and champion engineering excellence
• Evaluate technology - Research and integrate tools that improve developer experience and platform capability
• Improve how we work - Teams own their process, not just their code; if something isn't working, you have the authority to change it
• Deliver quality you’re proud of - Strong tests, automation, CI/CD, and operational ownership

Your Profile

• Strong production experience with Java and Spring Boot ecosystem (typically 6+ years, but we care more about depth than years)
• Think in distributed systems: you understand CAP theorem trade-offs, eventual consistency, and failure modes
• Solid experience designing RESTful APIs and service boundaries
• Solid proficiency with relational databases and messaging systems
• Hands-on experience with containers and orchestration
• Clear communication - you explain technical decisions clearly to both engineers and stakeholders
• Bonus points for: Kafka, Kubernetes, AWS experience, performance engineering, practical use of AI developer tools, React or TypeScript frontend skills as well as a background in the financial service industry or in regulated industries

Our Offer

• Be part of a distributed international team in a fully remote freelancing setup (B2B)(CET)
• Work with state-of-the-art hardware (MacBook Pro M-series) for optimal performance
• Stay connected through annual team gatherings that foster coherence and team spirit - remote, but never isolated
• Experience true ownership- teams choose their own workflows, no ceremonies are sacred
• Modern DX - mature IDP, GitHub Copilot standard, extended AI access for power users. We automate the tedious. Less boilerplate, more interesting problems

Are you up for the challenge?

Please upload your documents including your CV and your earliest possible starting date using our online application form.

You want to know more?

Here’s what to expect when you apply:Career at CRX Markets | Become part of our fantastic team