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Diesta on cord

Diesta

Senior Product Engineer (Backend)

Lower Thames St, London EC3R 6DN, UK
FinTech · InsurTech
Diesta is building a next generation payment processor for the worldwide insurance industry.
Active
2 days ago
Responds to
100% of requests
Responds in
7 days
Requests
1 pending
Conversations
4 started

Skills & Experience

Job roles: Back End
Experience level: Junior, Mid, Senior
Tech stack/tooling used: Angular, RAG
Core skills considered: Node.js, SQL, Python, Typescript, AWS
Other skills considered: Automated Testing, APIs, Agile, Docker, PostgreSQL

Logistics

Base salary: £75K - £115K   ·   0% - 0.1% Equity
Employment type: Permanent
Remote working: Hybrid (up to 3 remote days p/w)
Visa sponsorship: Not available

Job Description

We are seeking a Product Engineer with strong backend experience to join Diesta’s engineering team and help turn complex insurance-finance problems into well-scoped, well-built product features.

This is not a ticket-taking backend role. You will understand the customer workflow, challenge unclear or incomplete specifications, identify risks, and help shape the smallest useful end-to-end version of a feature before building it.

You will work primarily across our NestJS, Node.js, TypeScript, MySQL, Docker and AWS backend, with enough flexibility to understand and occasionally contribute to the Angular Portal where it improves delivery. You will build APIs, workflows and data-heavy capabilities that are reliable, testable and safe to evolve.

As Diesta moves from an AI-driven SDLC towards a more agentic one, you will use AI-assisted development tools thoughtfully to explore the codebase, produce implementation plans, write and review tests, and accelerate delivery without losing engineering judgement or ownership.

We are looking for a developer who can raise both the product and engineering bar: moving from high-level product direction to reliable production outcomes, and learning from customer feedback, operational evidence and incidents after release.


Key Responsibilities

Product Engineering: Turn high-level product direction into practical implementation options, helping define the smallest valuable end-to-end version before expanding into later iterations.

Backend Development: Design, build and maintain backend services, APIs, workflows and data-heavy product capabilities for Diesta's payment operations platform, primarily using Node.js, TypeScript and AWS.

Product Thinking: Go beyond blindly implementing a spec. Flag gaps, edge cases, risks, customer workflow issues and awkward product decisions before they become expensive to fix.

Scoping and Iteration: Break complex domains such as reconciliation, payouts, journals, reporting and integrations into clear version-one paths, internal milestones and customer-facing releases.

Technical Architecture: Contribute to sensible backend architecture, data models, service boundaries and implementation plans that balance speed, maintainability, reliability and product value.

AI-Assisted Engineering: Use tools such as OpenAI Codex, Claude Code or similar systems to understand the codebase, generate plans, build features, write tests, review changes and improve team productivity.

Full-Stack Awareness: Collaborate effectively with frontend engineers and, where useful, make small portal changes or reason through frontend implications in Angular.

Testing and Guardrails: Build and maintain automated tests, local environment simulations, validation scripts and acceptance checks that make it safer and faster to ship changes.

Reliability and Debugging: Investigate bugs, incidents, alerts and production issues, especially where they affect customer workflows, operational confidence, data correctness or delivery timelines.

Security and Compliance Awareness: Consider data protection, access control, auditability and compliance implications when building product features in a financial operations environment.

Collaboration: Work closely with backend developers, frontend developers, QA, DevOps, data engineers, product, operations, the Head of Product, Head of Engineering and CTO.

Documentation: Contribute clear technical and product documentation so engineers, AI agents and future team members can understand decisions, workflows and system behaviour.


What We’re Looking For

Backend Experience: Strong experience building production backend systems with Node.js, TypeScript, JavaScript, APIs, Git and modern engineering practices.

Product Mindset: Evidence that you think about the product, customer workflow and business outcome, not only the code or architecture of the assigned task.

Technical Judgement: Ability to reason through trade-offs, choose pragmatic implementation paths and explain why a particular version-one approach is the right starting point.

Communication: Clear, direct communication with the ability to explain requirements, risks, technical decisions, blockers and trade-offs to technical and non-technical colleagues.

Ownership: Comfort taking responsibility for a feature from problem framing through delivery, testing, review, rollout and follow-up.

AI-Native Mindset: Comfortable using AI tools to accelerate learning and delivery while still reviewing outputs critically and maintaining engineering standards.

Productive Collaboration: Able to work well with product, design, delivery, QA, frontend and backend colleagues, and comfortable contributing to the spec rather than waiting passively for instructions.

Problem-Solving Ability: Strong logical reasoning and patience with complex systems, messy data, domain-specific edge cases and production constraints.

Learning Pace: Ability to absorb feedback quickly, understand a complex domain and adapt to a fast-changing engineering environment.


Useful but not required

Experience or interest in any of the following would be helpful:

  • Angular or another modern frontend framework

  • Payment systems, fintech, insurance, banking or regulated data environments

  • Automated testing frameworks, acceptance testing and contract-style testing

  • Observability, monitoring and production debugging

  • Security, compliance, auditability or access-control concerns in product development

  • Prompting, agent workflows, RAG systems or AI-assisted internal tooling

  • Building personal products, prototypes, automation scripts or internal tools


Why Join Diesta?
  • Join a mission-driven team addressing real pain points in insurance finance.

  • Be part of a lean, high-performing team with direct impact on product and client outcomes.

  • Work with top insurers and brokers in an industry ripe for disruption.

  • A culture of high trust, low ego: we value competence, commitment, and transparency.


Benefits
  • Hybrid work model with a central London office (Bank / Liverpool Street)

  • Private healthcare insurance

  • Regular team lunches and international offsites

  • State-of-the-art technical equipment

  • 22 days annual leave (excluding bank holidays)

Company Benefits

  • Hybrid working with office in the heart of the City of London (Bank / Liverpool Street)
  • Free Team lunches
  • Annual international offsite trips to Athens, Lisbon, Barcelona, ...
  • Private health care insurance
  • State of the art technical equipment
  • We match charitable contributions up to £100 per employee per year
  • 22 days leave, excluding bank holiday

Interview Process

  1. Intro Call with our Chief of Staff to explore your background and aspirations.

  2. Technical Interview with the Head of Engineering.

  3. Onsite Workshop at our London office, collaborate with the team and experience our culture first-hand.

Skills of candidates in conversation

Typescript
Python
Node.js
SQL
AWS
V
Chief of Staff
Active 2 days ago
Senior Product Engineer (Backend) at Diesta
Message Victor Dulout  ·  Typically responds within days

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Starling Bank on cord

Starling Bank

Full Stack Engineer (ML Ops)

London, UK
FinTech · Banking · Finance
A better bank for everyone
Active
over 6 months ago
Responds to
0% of requests
Responds in
1h 55m
Requests
7 pending

Skills & Experience

Job roles: Full Stack
Experience level: Mid, Senior
Core skills considered: Java, React, Redux, AWS, JavaScript

Logistics

Base salary: £70K - £110K
Employment type: Permanent
Remote working: Hybrid (up to 2 remote days p/w)
Visa sponsorship: Not available

Job Description

Starling is the UK’s first and leading digital bank on a mission to fix banking! Our vision is fast technology, fair service, and honest values. All at the tap of a phone, all the time.

Starling is the UK’s first and leading digital bank on a mission to fix banking! We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way.

We’re a fully licensed UK bank with the culture and spirit of a fast-moving, disruptive tech company. We’re a bank, but better: fairer, easier to use and designed to demystify money for everyone. We employ more than 3,000 people across our London, Southampton, Cardiff and Manchester offices.

Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech. We operate a flat structure to empower you to make decisions regardless of what your primary responsibilities may be, innovation and collaboration will be at the core of everything you do. Help is never far away in our open culture, you will find support in your team and from across the business, we are in this together!

The way to thrive and shine within Starling is to be a self-driven individual and be able to take full ownership of everything around you: From building things, designing, discovering, to sharing knowledge with your colleagues and making sure all processes are efficient and productive to deliver the best possible results for our customers. Our purpose is underpinned by five Starling values: Listen, Keep It Simple, Do The Right Thing, Own It, and Aim For Greatness.

Hybrid Working

We have a Hybrid approach to working here at Starling - our preference is that you're located within a commutable distance of one of our offices so that we're able to interact and collaborate in person. We don't like to mandate how much you visit the office and work from home, that's to be agreed upon between you and your manager.

Our Data Environment

Our Data teams are excited about the value of data within the business, powers our product decisions to improve things for our customers and enhance effective and agile decision making, regardless of what their primary tech stack may be. Hear from the team in our latest blogs or our case studies with Women in Tech.

We are looking for talented data professionals at all levels to join the team. We value people being engaged and caring about customers, caring about the code they write and the contribution they make to Starling. People with a broad ability to apply themselves to a multitude of problems and challenges, who can work across teams do great things here at Starling, to continue changing banking for good.

Requirements

We have built our entire banking platform in house and mostly in Java. We are looking for people who want to work on building the tooling that is used by our engineers on a daily basis.

We are looking for people who are truly full stack, and are as comfortable polishing their javascript front end as they are debugging the innards of their java applications database interactions, or standing up infrastructure with terraform. We are looking for people who can:

  • Design REST apis.
  • Code backend services, ideally using Java, or another other server side compiled language.
  • Develop modern front ends, ideally using React and Redux.
  • Get their code into the cloud and support it there, ideally on AWS.
  • Believe in clean coding, simple solutions, automated testing and continuous deployment.
  • Like to take ownership of a feature from the original idea through to live.
  • Think (like us) that a small number of empowered developers is the right way to deliver software.

Company Benefits

  • 33 days holiday (including flexible bank holidays)
  • An extra day’s holiday for your birthday
  • 16 hours paid volunteering time a year
  • Part-time and/or flexible hours available for most roles
  • Salary sacrifice, company enhanced pension scheme
  • Life insurance at 4x your salary
  • Hybrid/remote working
  • Private Medical Insurance with VitalityHealth including mental health support and cancer care. Partner benefits include discounts with Waitrose, Mr&Mrs Smith and Peloton
  • Generous family-friendly policies
  • Varied social groups set up and run by our employees
  • Perkbox membership giving access to retail discounts, a wellness platform for physical and mental health, and weekly free and boosted perks
  • Access to initiatives like Cycle to Work, Salary Sacrificed Gym partnerships and Electric Vehicle (EV) leasing

Full details are available on our careers site

Interview Process

Interviewing is a two way process and we want you to have the time and opportunity to get to know us, as much as we are getting to know you! Our interviews are conversational and we want to get the best from you, so come with questions and be curious. In general you can expect the below, following a chat with one of our Talent Team:

  • Stage 1 - 30 mins with one of the team
  • Stage 2 - Take home challenge
  • Stage 3 - 90 mins technical interview with two team members
  • Stage 3 - 45 min final with an executive and a member of the people team
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