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Moneybox

Mobile fintech for savings and ISAs

Forward Deployed Engineer

AI Application EngineeringConfirmed live in the last 24 hours
Full-timeLondon, UKNo salary listed

About the Job

Requirements

  • At least five years of software engineering experience with meaningful production ownership.
  • Experience building and shipping LLM-powered systems that ran in production.
  • Production-grade Python as the primary language.
  • Real-world experience working with models through APIs, including harnesses, orchestration, structured output, tool use, agents, and retrieval-augmented generation where appropriate.
  • Experience designing evaluation sets, measuring accuracy, recall, and precision for LLM steps, and regression-testing prompts and workflows.
  • Practical safety and guardrail experience, including personally identifiable information handling, data-boundary discipline, prompt-injection awareness, and human-in-the-loop design.
  • Experience optimising cost and performance through model selection, caching, batching, token economics, and latency budgets.
  • Experience with deployment and operations, including continuous integration and continuous delivery, containerisation, monitoring, and alerting for AI workloads.
  • Data-processing fundamentals, including pipelines, transformation, validation, and anomaly handling.
  • Customer- or stakeholder-facing delivery experience in consultancy, forward-deployed engineering, solutions engineering, or embedded or platform roles serving non-engineering users.

Responsibilities

  • Own engagement delivery end to end: scope with a department, design and build the solution, deploy it, and agree its handover and ownership model from prototype through stable production.
  • Define business problems from ambiguous requests and engineer AI solutions including pipelines, LLM API integration, evaluations, guardrails, monitoring, and cost and accuracy optimisation; determine when steps should be deterministic and when an LLM is appropriate.
  • Rebuild shared, team-load-bearing tools as owned business systems under a full software development lifecycle when justified by the value.
  • Deploy ML-built components into production, including serving and integration with the Moneybox platform, in partnership with Decisioning, Data Science, and engineering teams.
  • Turn engagement learnings into reusable tooling, templates, playbooks, and self-serve workflows on the AI Platforms stack; build platform components including guardrails, sandboxing, workflows, and gateways.
  • Work alongside embedded specialists during the team's ramp-up and internalise their output so the capability remains with Moneybox.
  • Deliver initial departmental engagements selected for feasibility and measurable business value during the first three months, and deploy at least one ML-built capability to production with evaluations, monitoring, and cost controls.

Desired Qualifications

  • Experience with Azure and/or .NET; willingness to integrate with both is required, while existing expertise is a bonus.
  • Experience with agent hosting and sandboxing platforms, LLM or MCP gateways, or agentic workflow orchestration tooling.
  • Experience in financial services or another regulated environment.
  • Experience deploying models built by a data science team into customer-facing production systems.

About the Company

Moneybox

Mobile fintech for savings and ISAs

Moneybox offers a mobile app that helps people save and invest by pairing automatic savings features with a range of investment and retirement accounts. Users link their bank cards and can have rounding-up of purchases feed into savings, then allocate funds into Cash ISAs, Lifetime ISAs, and Stocks and Shares ISAs, plus investment accounts and pension services. The app also charges subscription fees and management fees on its investment products, providing a simple, mobile-first way to grow wealth over time. What sets Moneybox apart is its focus on beginners and everyday users: a straightforward interface, automatic micro-savings, and an integrated suite of savings, investment, and pension options within one platform. The company aims to make saving and investing accessible to a broad audience—especially millennials and Gen Z—so they can build long-term wealth with minimal friction.

Company size
501-1,000
Company stage
Private
Total funding
$208.2M
Headquarters
London, United Kingdom
Founded
2015

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