ExTrac on cord

ExTrac

Software Engineer

External position
London, UK
Hiring internally for ExTrac?
Machine Learning and AI · Data
Ahead of Tomorrow
Posted
a month ago
Checked
cord regularly checks that external positions are still open
2 days ago

Skills & Experience

Job roles: Back End
Experience level: Mid, Senior
Core skills considered: Python, APIs, Microservices, Cloud Computing, CI/CD
Other skills considered: Data Pipelines, Scrum, Agile, Software Architecture

Logistics

Base salary: £75K - £80K
Employment type: Permanent
Remote working: Hybrid (up to 2 remote days p/w)
Visa sponsorship: Not available

Job Description

We are looking for a Software Engineer to join ExTrac's engineering team to help build and operate the services and pipelines the platform runs on.

ExTrac takes a continuously ingested, multi-source corpus and turns it into products analysts use to make decisions under time pressure. You will help build and run the backend microservices that make that possible: services and databases that expose curated data through APIs, run search and aggregation over large indices, hold application state, and keep the whole thing fast and correct as volume and customer count grow.

The work is broad by design. In a single quarter it spans API and service design, search and database performance, long-running data pipelines, cloud infrastructure, and the deployment tooling underneath all of it. You will own well-defined features and components end to end within a single system across a Go and Python codebase, working alongside the AI team who build our analytical and agentic features, the frontend team who build the web and mobile interfaces, and the analysts and product managers who define what gets built.


What the job involves

Service design and delivery

  • Build and own features, components, and APIs end to end within a single system, taking responsibility for your work and its place within the overall architecture.
  • Contribute to system design and architecture discussions, and take on more of the design work as you build context and scope.
  • Build and maintain APIs used by internal teams and customers, following established contracts and versioning conventions.

Production engineering

  • Develop Go and Python-based microservices to support data collection, processing, and querying, with guidance from senior engineers on more complex components.
  • Help hold services to production standards for latency, cost, and reliability, and build the instrumentation to know when they are not meeting them.
  • Build and operate high-throughput data streaming pipelines and work on improving scalability, robustness, and latency.
  • Help optimise databases and index performance where it is the constraint on product behaviour.

Working with analysts, product, and other engineering teams

  • Work directly with the analysts who use our products, turning what they hit in practice into changes in the system.
  • Iterate quickly against a live stream of product requests, flagging where they collide with longer-horizon platform work.
  • Partner with the AI and frontend teams to deliver cross-functional features, working through the engineering, performance, and reliability problems that sit outside of their scope.
  • Contribute to the shared foundations other engineers depend on: deployment pipelines, service templates, observability, and the environments their work runs in.

You should apply if

  • You have built and worked on production backend systems. You will spend your time working on Go and Python services, databases, and APIs, and you know the difference between something that works on a laptop and something that holds up under production load, latency, and cost.
  • You can work independently on well-defined problems, and know when to flag ambiguity or ask for input rather than guessing. When the obvious approach fails, you look for another one before escalating.
  • You are happy to take the initiative in order to complete a task, whether that means learning a new skill, reaching out to stakeholders to clarify requirements, or suggesting an alternate approach.
  • You treat quality, security, and observability as engineering fundamentals rather than optional extras, and you flag technical debt rather than letting it accumulate silently.
  • You actively seek feedback and act on it, and you look for opportunities to pair with and learn from the engineers around you.
  • You want to work on things that matter. Our software sits underneath decisions taken by governments, defence organisations, and institutions operating where being wrong or late carries real consequences.

Requirements

Due to the nature of our work and the clients we support, applicants must be eligible to obtain UK security clearance. We are currently only able to consider applicants who are nationals of a NATO member state, Australia, or New Zealand.

  • 2+ years of professional software engineering experience, with demonstrated ability to build and ship production-grade services, and experience owning features or components end to end within a larger system.
  • Proficiency in building microservices using Go or Python, with the ability to pick up the other quickly.
  • Practical understanding of software engineering patterns.
  • Strong communication and collaboration skills. Comfortable writing clear technical documentation and discussing requirements with colleagues from engineering and the wider team.
  • Interest across the stack: an interest in deployment pipelines, database behaviour, and security engineering.
  • An interest in how the product is actually used, and a willingness to take analyst feedback into requirements discussions rather than treating requirements as someone else's problem.

Desirable

  • Currently working with Go-based microservices.
  • Experience with Elasticsearch and/or PostgreSQL.
  • Experience with cloud infrastructure and infrastructure as code, and with the CI/CD pipelines around them.
  • Experience with streaming or event-driven pipelines.
  • Experience with feature flags and trunk-based development. Features land close to weekly, and individual deploys go out several times a day across several projects.
  • Experience working in software for defence, government, or other compliance-constrained environments.
Software Engineer at ExTrac
Position posted a month ago

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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
Alex Yeates on cord
Message Alex Yeates at Starling Bank
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