Skip to main content
Back to all jobs

Backend Engineer at Shareback

Are you a Backend Engineer looking to own production services at a scaling fintech? This London-based startup is seeking a Node.js and Postgres expert to drive their technical architecture forward. With a focus on reliability and high-performance APIs, this is a unique chance to join a high-growth team where your engineering decisions directly impact the product's success. If you have 4+ years of experience and a passion for scaling systems, this is the role for you.

About this role

Role overview

As a Backend Engineer, you will take ownership of production services for a rapidly scaling fintech platform. Working with Node.js, Postgres, and Redis, you will build and maintain robust APIs that handle critical financial data. You will play a key role in ensuring system reliability and performance while driving architectural decisions for the future.

About the company

Shareback

Shareback

Software

Shareback provides a secure enterprise AI platform and workspace that unifies company knowledge, workflows, apps, and communication through context-aware chat and tailored AI assistants. The platform offers advanced retrieval, intranet capabilities, pre-built and custom work-specific agents, an agent concierge, analytics, and integrations via built-in connectors or API, all with enterprise-grade security including SOC 2 Type 2, SAML SSO, SCIM, encryption at rest and in transit, and fine-grained administrative controls. Shareback also combines its platform with expert consulting to deliver customized AI solutions and onboarding for organizations.

What you'll do

What you will do

  • Design, develop, and maintain high-performance APIs and backend services using Node.js and Postgres.
  • Architect and scale production infrastructure to ensure 99.9% uptime and low-latency responses for global users.
  • Collaborate with product and frontend teams to define technical requirements and lead the implementation of complex features.

Who you are

Who this is a fit for

  • Has 4+ years of professional experience building and maintaining complex APIs and production services in a fast-paced environment.
  • Possesses expert-level knowledge of SQL and Postgres, with a proven track record of optimizing database performance and data integrity.
  • Demonstrates a history of clear ownership over scaling or reliability projects, ideally with experience in AWS, Docker, or Kubernetes.

Why this role

Why this role is remarkable

  • Direct ownership of production services at a high-growth fintech where your architectural decisions have an immediate impact on scalability.
  • Work within a sophisticated tech stack featuring Node.js, Postgres, and Redis, with the opportunity to influence the adoption of event-driven systems.
  • Join a culture that prioritizes technical excellence and reliability, offering a clear path to leadership for engineers who drive high-impact projects.

Jack & Jill

How Jack & Jill work together

Jack
I get to know what you’re great at, then find roles you’d never find yourself.
Jill
I recruit from Jack’s network and make the intro when I spot a great match.

Meet Jack

Thumbnail for Meet Jack

Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.

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.

Find a job with Jack

Ready to find your next role?

Talk to Jack for 10 minutes and see your first matches.