Senior Backend Engineer Java/Spring Boot
Senior Back-End Engineer – Java/Spring Boot
Location: London (Baker Street)
Working Pattern: Hybrid – 3 days per week in-office
Salary: Up to £130,000 (negotiable) + equity & benefits
This position is being recruited on behalf of one of our customers.
About the Company
The company is unlocking scale for the alternative asset management industry. With private markets surpassing $20 trillion in assets under management — and expected to triple by 2032 — the sector is undergoing unprecedented growth, complexity and demand. To keep pace, managers need a modern, purpose-built technological backbone.
The Role: Senior Back-End Engineer
As a Senior Back-End Engineer at Vega, you will play a key role in building the core infrastructure that powers the platform. You will architect, develop, and optimise scalable microservices using Java 21 and Spring Boot, ensuring seamless integration with critical systems across the private markets ecosystem.
This is a unique opportunity to directly influence the technology reshaping the future of a multi-trillion-dollar industry.
Key ResponsibilitiesTechnical Architecture
Lead the design and development of backend services for the SaaS B2B platform
Drive an open, modular architecture that integrates seamlessly with partners across the private equity landscape
Microservices Development
Build and maintain scalable, resilient microservices using Java 21 and Spring Boot
Champion performance, reliability, and long-term maintainability
API Engineering
Develop and optimise RESTful APIs that power front-end applications built with React & TypeScript
Work extensively with OpenAPI for interface generation and documentation
Platform Integrations
Ensure smooth integration with third-party systems used by private equity firms, distributors, private banks, and fund administrators
Performance & Optimisation
Identify bottlenecks, improve data flow, and ensure high-performance service operation at scale
Code Quality & DevOps
Advocate clean code practices, automated testing, and CI/CD excellence
Contribute to robust DevOps processes for smooth deployments and high availability
Leadership & Mentorship
Provide technical guidance to fellow engineers
Foster a culture of innovation, learning, and engineering best practice
Qualifications
7+ years of professional experience in back-end development
Deep expertise in Java (preferably Java 21) and Spring Boot
Proven experience designing and developing microservices architectures
Strong proficiency with SQL, including schema migrations using Flyway
Hands-on experience with AWS services such as EC2, RDS, S3, Cognito, and KMS
Working knowledge of containerisation tools (Docker) and orchestration (Kubernetes)
Strong background in building REST APIs and working with OpenAPI
Familiarity with CI/CD pipelines and automated testing frameworks
Excellent problem-solving ability and strong communication skills
Tech Stack
Back-end:
Java 21, Spring Boot, REST, PostgreSQL, JOOQ, Flyway, JUnit, TestContainers, Mockito
AWS (EC2, RDS, Cognito, S3, KMS), Docker, Kubernetes
Front-end (exposure beneficial):
TypeScript, React, Tailwind CSS
Why Join?
Work at one of the most forward-thinking fintechs in alternative assets
Backed by world-class investors and industry leaders
Competitive base salary + meaningful equity
Private medical insurance, gym membership, learning & development budget
Major impact on a platform redefining the future of private markets
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