Overview

Join to apply for the Backend Engineer, London role at nsave.

nsave is a fintech company focused on transforming how underserved communities manage and grow their wealth. We’re building robust, scalable, and secure financial infrastructure to protect and grow the wealth of the financially excluded. Location: London, UK (Spitalfields) – Full-time, on-site.

Responsibilities

• Design, implement, and own core infrastructure subsystems: service architecture, reliability, CI/CD pipelines, operational health, security, and integrations with compliance and banking services.
• Proactively improve system health and compliance: identify weaknesses in code and infrastructure, prioritize fixes, and deliver solutions that keep systems secure, performant, and regulation-ready.
• Ensure user-facing financial systems are high-throughput, low-latency, and meet reliability expectations.
• Balance rapid product iteration with operational stability—responding quickly to shifting priorities in a dynamic environment.
• Champion a user-centered approach, building infrastructure that directly supports product performance, compliance, and trust.

Qualifications

• Broad platform & infrastructure expertise: backend architecture, databases, site reliability, infrastructure as code, and continuous deployment.
• Strong software engineering fundamentals: clean abstractions, scalability, thoughtful trade-offs, and a passion for building and optimizing complex systems.
• Security-first mindset: experience designing and operating robust, financial-grade systems that can withstand penetration attempts.
• Collaborative and supportive: committed to improving developer productivity, enabling teammates to ship quickly and safely, and maintaining the team’s operational health.
• Business-aware decision making: ability to weigh speed vs. quality, with technical choices guided by product and compliance needs.
• Regulated environment experience: familiarity with fintech or other domains where compliance, reliability, and security are critical.

Tech

• Backend: NestJS (Node.js), TypeScript
• Infrastructure: AWS (ECS, RDS/Postgres), Docker
• Messaging: Kafka

We don’t expect you to know all of these already. What matters is solid engineering fundamentals and the eagerness to quickly get up to speed.

Our Values

• Pride in Impact: We take pride in the work we do and the positive difference we make for our users.
• Compassionate Action: We’re thoughtful, empathetic, and proactive in our approach to solving problems and working together as a team.
• Creative Problem Solving: We believe creativity, curiosity, and resilience are the keys to success in everything we do.
• Inclusivity: We champion a diverse and inclusive culture where everyone’s voice is heard and valued.

About Nsave

nsave is a fintech company with offices in London and Geneva, founded to protect and grow the wealth of the financially excluded by offering safeguarded hard currency accounts and an investment platform tailored to individuals in distressed economies. We use compliance-by-design principles and proprietary technology to create a secure and reliable service. We’ve raised $22 million in funding from Sequoia Capital, Y Combinator, and SV Angel. For more information, visit: www.nsave.com

Seniority level

• Entry level

Employment type

• Full-time

Job function

• Other

Industries

• IT Services and IT Consulting
• Fintech

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