System1 on cord

System1

Frontend Software Engineer

External position
Remote in UK
Hiring internally for System1?
Market Research · Analytics
The Ad Effectiveness Agency.
Posted
2 days ago
Checked
cord regularly checks that external positions are still open
2 days ago

Skills & Experience

Job roles: Front End
Experience level: Mid, Senior
Core skills considered: Typescript, React, Data Visualisation, Automated Testing, CI/CD
Other skills considered: API Testing, WCAG, Cloud Computing, Product Management

Logistics

Base salary: Undisclosed
Some companies on cord are unable to disclose salaries publicly due to internal company policies. Message the company for salary information.
Employment type: Permanent
Remote working: Remote
Work from: Within United Kingdom
Visa sponsorship: Not available

Job Description

We are looking for a talented and ambitious Frontend Software Engineer to join the empowered product team building System1's next-generation AI platform. As our first frontend engineer on the platform, you will shape how the world's largest brands experience AI-powered predictions of their advertising's effectiveness, building the interfaces through which they upload video at scale, explore analytics and insights, and work with AI agents. You will work as a first-class member of the product team alongside your Product Manager, Product Designer and Team Lead to discover and deliver outcomes that matter to our customers and our business. This is a rare opportunity to define the frontend architecture and conventions from day one, engineer in a genuinely AI-native way, and work at the speed our market demands.


What you will be doing?

  • Partner as a member of an empowered product team (Product Manager, Product Designer, Team Lead and engineers), sharing accountability for the outcomes your team commits to.
  • Define the frontend architecture, patterns and conventions for our AI platform as our first frontend engineer, and set the bar for those who join after you.
  • Build the platform's web application in TypeScript and React, creating fast, intuitive experiences for the world's largest advertisers.
  • Bring complex analytics and insights to life through data visualisation and dashboards that make our predictions clear and actionable.
  • Build agentic and conversational interfaces, including streaming AI responses, that let customers work naturally alongside AI.
  • Create robust experiences for uploading, processing and reviewing video at scale.
  • Work API-first against a headless, spec-driven backend, consuming generated clients and helping shape the API contracts your interfaces depend on.
  • Partner closely with your Product Designer, iterating rapidly from prototype to production and building a component library and design system together.
  • Put automated testing at the heart of everything you ship, with a fully automated CI/CD pipeline that lets the team release with confidence.
  • Engineer through Claude Code day to day, building and sharing skills, subagents and workflows that raise the speed and quality of the whole team.
  • Contribute to continuous product discovery, helping the team assess feasibility early and building quick prototypes to test ideas with customers before we commit.

You need to be this kind of person:

  • A missionary, not a mercenary. You care deeply about the customer problem and the outcome, not just the code.
  • Outcome-driven. You measure your success by the change you create for customers and the business, not by tickets closed.
  • An engineer first, with AI as a force multiplier. You use AI tools to move faster with rigour, not to skip the thinking.
  • Comfortable with ambiguity and ownership. As our first frontend engineer, you don't wait to be told how things should be done, you shape it with your team and go.
  • A clear communicator, able to explain technical trade-offs to product, design, data science and commercial colleagues as well as to fellow engineers.
  • Curious and a lifelong learner, with the integrity to back your point of view with evidence in front of colleagues, customers and stakeholders.
  • Able to see the bigger picture without losing attention to detail, you care about the pixels and the performance as much as the architecture.
  • A natural collaborator, comfortable working with all departments at all seniorities, and equally able to drive work forward independently.
  • Passionate about (good!) advertising, how it works and how it can be improved or excited to become so.

You need to have the following experience:

To be successful in this role, you will have approximately 3-5 years of real-world frontend engineering experience and be ready to operate as a first-class member of an empowered product team, where you'll have outsized influence on the outcomes we deliver.

  • Strong commercial experience building web applications in TypeScript with React or another modern component-based framework.
  • Experience building data-rich interfaces, with a strong track record in data visualisation, dashboards and presenting analytics and insights.
  • Experience building conversational or agentic interfaces, including handling streaming responses from AI models.
  • Experience building against headless, API-first backends, ideally consuming clients generated from API specifications.
  • A testing-first mindset, with hands-on experience of automated testing and fully automated CI/CD pipelines.
  • Experience working closely with designers in fast, iterative cycles, and building or contributing to a component library or design system.
  • Daily use of Claude Code as an engineering tool, including building your own skills and subagents, with an engineering-led approach rather than vibe coding.
  • Experience working in a product operating model, as part of an empowered, cross-functional product team.
  • Experience of building accessible interfaces to recognised standards (e.g. WCAG).
  • Experience with video upload, playback or media-heavy applications at scale is a strong plus.
  • Familiarity with cloud platforms and the security and compliance expectations of enterprise customers is a plus.

This role will require you to operate across multiple discovery and delivery threads in parallel, balancing speed with the craft and reliability our customers expect.

Frontend Software Engineer at System1
Position posted 2 days 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
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