You will lead the technical design of backend services for AltOS, a mission-critical operating system for the $13 trillion alternative asset industry. Working with Java 21 and Spring Boot, you'll build scalable microservices that integrate global asset managers, institutional investors, and private equity firms into a unified, API-driven ecosystem.
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London, United KingdomNot Disclosed
Senior Back-end Engineer at $28M Series A fintech building private market infrastructure
Private markets are a $13 trillion industry currently running on fragmented, manual systems. This $28M Series A fintech is changing that by building AltOS—the industry-standard operating system for alternative asset managers. Backed by heavyweights like Apollo Global Management and Motive Partners, they are seeking a Senior Back-end Engineer to lead the design of mission-critical Java 21 microservices. If you have 7+ years of experience and want to work alongside leaders from KKR, Blackstone, and Revolut to modernize global finance infrastructure, this is your chance to join a high-growth London team with day-one equity and significant technical ownership.
Overview
Role overview
Company
Vega
FinTech50-100 employees
$28M Series A fintech building private market infrastructure backed by Apollo and Motive Partners
Responsibilities
What you will do
- Design and develop robust microservices using Java 21 and Spring Boot within a high-performance AWS and Kubernetes environment.
- Architect and optimize RESTful APIs to facilitate seamless integration between PE firms, distributors, and fund administrators.
- Drive engineering excellence by advocating for clean code, automated testing, and DevOps best practices across the entire backend stack.
Candidate profile
Who this is a fit for
- 7+ years of professional backend experience with deep expertise in Java, Spring Boot, and building production-grade microservices.
- Proven track record of shipping scalable infrastructure in high-growth fintechs or startups with a strong engineering culture.
- Strong proficiency with SQL (Postgres), cloud-native services (AWS), and container orchestration using Docker and Kubernetes.
What makes it remarkable
Why this role is remarkable
- Work at the intersection of high-finance and scale-up tech with a founding team from KKR, Blackstone, Goldman Sachs, and Revolut.
- Join a company with massive institutional backing; lead investor Apollo Global Management is also an anchor client, providing immediate enterprise-scale traction.
- High-impact ownership environment where you can shape technical direction and progress into squad leadership as the company scales its global infrastructure.
Jack & Jill
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Meet Jack
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How does this work?
Jack's an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack's network.
If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.
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