Who we are

At QuantSpark we combine commercial strategy, data modelling and software development to help our clients make smarter decisions. Our small teams of developers and consultants use complex datasets, build bespoke analytical tools and derive meaningful insights, to tackle strategic problems.

We do work for high street retailers, FTSE firms, Private Equity companies - and also do pro-bono work for the United Nations, amongst others, through the QuantSpark Foundation.

What the role is about

As a Full Stack Developer at QuantSpark, you will build both the frontend and backend of websites and applications that our clients use to better understand the data and models we have assembled for them. This means getting to the bottom of what is needed, designing and developing a good solution, and testing and validating that it works as expected.

QuantSpark being a small and smart company, you will be able to bring in your own expertise and ways of doing things, as well as learning a tremendous amount as part of your work, from colleagues and via training. You will also be able to switch between teams and thus work on a range of projects, including pro-bono ones.

Over time, you could further your architecture knowledge, learn more about automated testing or DevOps, specialise in frontend or backend development, or get started on Data Analysis or Strategic Consulting if that’s where you want to take your career.

So who are we looking for?

We don’t look for specific academic achievements or levels of experience. Instead we welcome applicants who can show technical ability, creativity, good communications, grit and a desire to learn.

More specifically for this role, you will need the following skills:

  • Javascript full-stack development (Node, NPM, Nginx, React, Webpack, HTML, CSS)

  • Python development (Flask, Gunicorn)

  • Data storage and caching (eg Sql, MongoDB, Redis)

  • Unit testing, TDD

  • Linux / Bash

  • Code management (Git, Bitbucket)

As a bonus, you would also have the following:

  • A keen eye for good user interface design and user experience

  • Experience of designing a web app architecture

  • Knowledge of advanced code deployment (CI, CD, Jenkins, Docker, Kubernetes)

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, or disability status.


  • £45k to £70k base salary, based on your profile, plus bonuses

  • Nice, comfortable, quiet office just outside Farringdon station

  • Annual training & conference budget

  • 33 days of holiday (including bank holidays)

  • Pension contribution scheme

  • Cycle to work scheme

Salary range £45,000 — 70,000

Plus bonuses; dependent on profile