Senior backend engineer building Affirm’s AI platform infrastructure for scalable financial services. Developing governed gateways, runtimes, and evaluation systems across millions of transactions.
About the role
- Senior Backend Engineer building Java/Spring Boot fintech solutions for wealth management. Owning architecture, delivery, scalability, and security in a small team.
Responsibilities
- Work in a small team, take product assignments, and lead them to completion
- Own all phases of planning, development, and delivery
- Participate in architectural design and decision-making
- Conduct code peer reviews and attend retrospectives
- Plan and execute team improvements
- Support junior and mid-level team members to achieve high code quality
- Use Spring Boot, Ruby on Rails, Postgres, Google Cloud, Kubernetes, Docker, and Astra-DB
- Improve architecture, scalability, and security with experienced engineers
- Demonstrate communication, ownership, accountability, and teamwork
- Think about the product and improve customer experience
Requirements
- 5+ years of backend development experience
- Strong development experience in Java and preferably Spring Boot
- Test Driven Development
- Extensive unit and integration testing skills
- Experience in investing and personal wealth management is a huge plus
- Mathematical proficiency is a huge plus
- Machine learning experience or related statistical training
- Experience with a big-data stack such as MongoDB or Cassandra
- Knowledge of financial products and the stock market
- Willingness to learn about new technologies
- Ability to use data or reliable sources of information to drive decision-making
- Ability to take on complex problems, learn quickly, and persist toward a good solution
- Ability to balance speed of delivery and code quality
- English is mandatory
- German is a plus
- Residence in a time zone within +/- 2 hours of Berlin time
Benefits
- Personal and professional growth
- Family and career compatibility
- Learning about investing, financial products, and money management
- Automation-focused work environment
- Equal career opportunity regardless of gender, identity, race, or religion
- Transparency and close collaboration
- Permanent employment
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