Back End Software Engineer

Back End Software Engineer

Department: Engineering

Employment Type: Full Time

Location: London, UK

Compensation: £57,000 - £75,000 / year

We are a team of about 50 engineers who collaborate closely and take pride in delivering best-in-class software and providing an extraordinary experience to our clients. We solve some of the most challenging problems in financial services, operating in petabytes and milliseconds, not just optimizing the upload of cat photos. Our clients use our service for multiple hours a day – what we do as engineers has a real-life impact on thousands of people across the globe.

Our team values professionalism, sustainability, and psychological safety; we hold each other to high standards, give considered and constructive feedback, work smart, and look out for one another.

We’re looking for a Mid-Level Back End Engineer who can help drive innovation and deliver great software at pace while also keeping sustainability in mind. We need highly motivated, intelligent people hungry for a challenge.

We like keeping our tech stack modern and have recently completed major projects that included distributing our main rules engine using AWS services, migrating terabytes of data from SQL Server to Aurora Postgre

SQL, replacing our Single Sign-On service with Auth0, and converting our front-end to React.

• Back-end: C#
• Data storage:
  Postgre
  
  SQL;
  Amazon storage including Aurora, Dynamo
  
  DB, S3
• Infrastructure:
  Terraform and AWS, using Fargate, Lambdas, Step Functions, and more
• Pipeline:
  Git Hub Actions, Team City, Octopus Deploy, Serverless
• Front-end:
  React, Type Script

Engineers have a lot of freedom to solve problems in a way that achieves our outcomes, working within our values. You will not be micro‑managed; instead you are expected to take ownership of your work from Day 1. To thrive, you need to be comfortable with uncertainty and embrace change. We release software when it’s ready, not on a schedule, with teams deploying multiple times a day.

We work agile, but we do not follow any approach blindly. We seek 1 % improvements in everything, try new things, and use a Kanban‑inspired approach, taking inspiration from Team Topologies, 12‑factor, Dev Ops culture, and other good agile practices.

Our engineers handle a wide set of products and technical services; we are evolving our codebase to be distributed, cloud‑native, and resource‑ and cost‑effective, contributing to Fund Apps becoming carbon neutral.

• Background: A mid‑level engineer with generalist knowledge of product development concepts (software design, product requirements, work breakdown) and agile practices (TDD, CI/CD, architecture) who can apply them to solve well‑defined problems independently and with the team. You are comfortable writing code in C#, Java or Python.
• Work with purpose: You can articulate the value of your work in larger projects or team‑wide goals and have the space to own and deliver solutions while working with ambiguity and evolving requirements.
• Have courage: You are comfortable asking for and giving feedback, help others when needed, and participate in debates, brainstorms, and other team conversations regularly. You build good relationships with colleagues in Engineering, Product, and the wider company and can respectfully challenge each other to understand problems and find the best solutions.
• Be transparent: You provide work updates, communicate regularly about progress and blockers, and reach out for help when needed.
• Raise the bar: You seek opportunities to improve our code, process, and practices; 1 % improvements over time benefit everyone.
• Do more with less: You identify and help implement process and standard improvements within the team, seek to optimise workflow, and share ideas to automate manual tasks.

Salary

We are currently hiring across multiple levels and the base salary for this role is between £57,000 – £75,000. The final offer will be based on your experience and performance during the interview process.

Work Eligibility

We require candidates to have permission to work in the UK without visa sponsorship.

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