Senior Backend Engineer, Java, Spring Boot

wealthAPI GmbH

. Work in a small team, take product assignments, and lead them to completion .

Posted 10/24/2026full-timeRemoteSenior💰 €50,000 - €90,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive backend development expertise with a strong focus on Java and Spring Boot, alongside proficiency in architectural design and decision-making. Capable of leading teams to improve code quality and customer experience while utilizing tools like Kubernetes and Docker.

Highest-signal resume keywords

Java DevelopmentSpring BootTest Driven DevelopmentUnit TestingIntegration Testing

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Backend DevelopmentJavaSpring BootUnit TestingIntegration TestingMachine LearningMathematical ProficiencyBig-Data StackMongoDBCassandra

Soft Skills

CommunicationOwnershipAccountabilityTeamworkProblem-Solving

Tools & Technologies

PostgresGoogle CloudKubernetesDockerAstra-DB

Industry Keywords

InvestingPersonal Wealth ManagementFinancial ProductsStock Market

Tech Stack

Tools & technologies

CassandraCloudDockerJavaKubernetesMongoDBPostgresRubyRuby on RailsSpringSpring BootSpringBoot

About the role

Key responsibilities & impact

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

What you’ll need

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

Comp & perks

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