Founding Engineer — Product (up to £150k) in London

Founding Engineer — Product (up to £150k) in London

London Full-Time 60000 - 80000 £ / year (est.) Home office (partial)
Dex

At a Glance

  • Tasks: Design and build features for a decision-intelligence platform impacting public policy.
  • Company: Innovative AI lab focused on societal simulations and transparency in governance.
  • Benefits: Competitive salary up to £150k, flexible work environment, and growth opportunities.
  • Other info: Join an early-stage startup and thrive in a dynamic, impactful environment.
  • Why this job: Make a real difference in public policy with cutting-edge technology and collaboration.
  • Qualifications: 2-5 years of software engineering experience, strong backend or full-stack skills.

The predicted salary is between 60000 - 80000 £ per year.

This role is with one of Dex's trusted partner companies.

We work closely with their teams to truly understand their culture, goals, and what they're looking for, so we can match you with the right opportunity and give you context about the role before you commit to a process.

The role

This applied AI lab is building society-level simulations for governments, helping policy teams research evidence, model population responses, and draft decision-ready documents.

Backed by leading investors, their platform brings transparency and auditability to critical public policy decisions, supporting human judgment rather than replacing it.

  • The work
  • Design and build end-to-end features for a decision-intelligence platform, spanning data pipelines, cloud infrastructure, and full-stack components.
  • Translate complex policy workflows and social science models into robust, scalable software solutions.
  • Collaborate directly with policy advisors, civil servants, and legal teams to define product requirements and user experience.
  • Drive technical decisions and architectural choices as an early member of the engineering team.
  • Contribute to a platform that simulates population responses and drafts policy documents, ensuring transparency and auditability.

What You Bring

  • 2-5 years of software engineering experience, with a strong backend or full-stack background.
  • Proven ability to build scalable backend infrastructure and deploy services on GCP or AWS using infrastructure-as-code.
  • Experience working directly with non-technical clients or users, translating needs into technical solutions.
  • Comfort operating in an early-stage startup environment: you thrive with ambiguity and can scope your own work.
  • A genuine interest in public‑sector problems, policy, govtech, or the social‑science aspects of the work.
  • #J-18808-Ljbffr

Founding Engineer — Product (up to £150k) in London employer: Dex

Join a pioneering early-stage venture-backed company at the forefront of building foundation models for extreme physics, where you will have the unique opportunity to shape the engineering culture from day one. With a strong focus on innovation and collaboration, this role offers competitive compensation, a dynamic work environment, and the chance to contribute to critical advancements in global infrastructure and energy. You'll be part of a small, research-heavy team that values your expertise and encourages personal growth, making it an excellent place for those looking to make a meaningful impact.

Dex

Contact Details:

Dex Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Founding Engineer — Product (up to £150k) in London

Join Local Tech Meetups

Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Dex or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!

Contribute to Open Source Projects

Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Dex.

Tap into Online Developer Communities

Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Dex.

Explore Job Boards Specifically for Tech Roles

Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Dex that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!

We think you need these skills to ace Founding Engineer — Product (up to £150k) in London

Software Engineering
Backend Development
Full-Stack Development
Scalable Infrastructure Design
GCP
AWS
Infrastructure-as-Code

Some tips for your application 🫡

Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.

Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Dex.

Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Dex and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!

Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!

How to prepare for a job interview at Dex

Brush Up on Your Coding Skills

For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.

Know Your Tools and Frameworks

Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Dex uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.

Showcase Your Projects

Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.

Prepare for Behavioural Questions

While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.