Backend Engineer

Backend Engineer

Full-Time 50000 - 60000 £ / year (est.) No home office possible
nsave

At a Glance

  • Tasks: Design and implement robust financial infrastructure for a mission-driven fintech.
  • Company: Join nsave, a fintech transforming wealth management for underserved communities.
  • Benefits: Competitive salary, dynamic work environment, and opportunities for professional growth.
  • Other info: Collaborative culture focused on inclusivity and creative problem-solving.
  • Why this job: Make a real impact in fintech while building secure and scalable systems.
  • Qualifications: Experience in backend architecture and a passion for optimising complex systems.

The predicted salary is between 50000 - 60000 £ per year.

Location: London, UK (Spitalfields). Full-time, on-site.

About the role

At nsave, we’re building a new kind of fintech, focused on transforming the way underserved communities manage and grow their wealth. We’re looking for an exceptional Backend Engineer to join us in shaping the future of our platform and services. If you're passionate about building robust, scalable, and secure financial infrastructure, this is your chance to make a lasting impact in a mission-driven company. It’s a chance to be at the forefront of designing and engineering the core systems of nsave, a company working to protect and grow the wealth of the financially excluded.

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

Values

Pride in Impact, Compassionate Action, Creative Problem Solving, and Inclusivity guide how we work together.

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 for distressed economies. We use compliance-by-design principles and proprietary technology to create a secure and reliable service. We have raised funding from Sequoia Capital, Y Combinator, and SV Angel.

Seniority level: Entry level

Employment type: Full-time

Job function: Engineering and Information Technology

Backend Engineer employer: nsave

At nsave, we pride ourselves on being a mission-driven fintech company that not only focuses on transforming financial services for underserved communities but also fosters a collaborative and inclusive work culture. Located in the vibrant Spitalfields area of London, we offer our employees competitive pay, opportunities for professional growth, and the chance to make a meaningful impact in the world of finance. Join us to be part of a team that values creativity, compassion, and innovative problem-solving while working on cutting-edge technology in a supportive environment.
nsave

Contact Detail:

nsave Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Backend Engineer

✨Tip Number 1

Network like a pro! Reach out to folks in the fintech space, especially those at nsave. A friendly chat can open doors and give you insights that might just land you an interview.

✨Tip Number 2

Show off your skills! Create a portfolio or GitHub repo showcasing your backend projects. When you apply through our website, include links to your work to impress the hiring team.

✨Tip Number 3

Prepare for the tech interview! Brush up on your coding skills and be ready to discuss your approach to building scalable systems. We love seeing how you think and solve problems!

✨Tip Number 4

Follow up after applying! A quick message to express your enthusiasm can set you apart. Let us know you’re keen on joining the mission at nsave!

We think you need these skills to ace Backend Engineer

Backend Architecture
Databases
Site Reliability
Infrastructure as Code
Continuous Deployment
Clean Abstractions
Scalability
Security-first Mindset
AWS (ECS, RDS/Postgres)
Docker
NestJS (Node.js)
TypeScript
Kafka
Collaborative Skills
Business-aware Decision Making

Some tips for your application 🫡

Tailor Your CV: Make sure your CV reflects the skills and experiences that match the Backend Engineer role. Highlight your expertise in backend architecture, databases, and any relevant fintech experience to catch our eye!

Craft a Compelling Cover Letter: Use your cover letter to tell us why you're passionate about building robust financial systems. Share specific examples of how you've tackled challenges in previous roles, especially in regulated environments.

Showcase Your Projects: If you've worked on any projects that demonstrate your backend engineering skills, don’t hesitate to include them! Whether it's a personal project or something from a previous job, we love seeing what you can do.

Apply Through Our Website: We encourage you to apply directly through our website for the best chance of getting noticed. It’s the quickest way for us to see your application and get the ball rolling on your journey with nsave!

How to prepare for a job interview at nsave

✨Know Your Tech Stack

Make sure you’re well-versed in the technologies mentioned in the job description, like NestJS, TypeScript, and AWS. Brush up on your knowledge of backend architecture and CI/CD pipelines, as these will likely come up during technical discussions.

✨Showcase Your Problem-Solving Skills

Prepare to discuss specific examples where you've tackled complex problems, especially in a fintech context. Highlight how you’ve improved system health or security in previous roles, as this aligns with nsave's focus on compliance and reliability.

✨Understand the Company’s Mission

Familiarise yourself with nsave’s mission to support underserved communities. Be ready to articulate how your skills can contribute to their goals, particularly in building robust financial infrastructure that prioritises user trust and compliance.

✨Ask Insightful Questions

Prepare thoughtful questions about the team dynamics, the challenges they face, and how they measure success in their projects. This shows your genuine interest in the role and helps you assess if it’s the right fit for you.

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