Blenheim Chalcot is the UK’s leading digital venture builder. We build tech start-ups that are geared to disrupt and transform sectors. We invest more than just funds, we invest our knowledge and experience, our ideas and our infrastructure. Our ventures are at the forefront of a multitude of industries covering FinTech, EdTech, Media, Sport and more.

It is a cohesive group and we have a strong culture built around curious, engaging and innovative people. Working alongside entrepreneurs and co-founders, we support our ventures from start-up to scale to exit, giving them access to the global networks and services they need to grow.

Our portfolio represents sales of over £300 million, £500 million of assets under management, more than 3,000 employees and a successful track record of over 40 companies. We host our start-ups in our incubator spaces located in Hammersmith and White City, home to a buzzing mix of fast growth digital start-ups. We currently have 19 companies in the portfolio which vary in stage from seed to international scale.



EnglishScore is a brand new EdTech venture in partnership with the British Council.  At its core is a free mobile English test that will help millions of people to unlock the potential that the English language gives them.  What we are building could have a tangibly positive impact on the lives of millions of people.  This isn’t just another techie gig.

Our service is launched at scale in India, and soft launched elsewhere around the globe.  Our first offering is focussed on testing candidates’ skills around grammar, vocabulary, reading, and listening.  Next up is speaking: we need to build real-time voice recognition and correction into our assessment, for any person with any accent anywhere on the planet.

Our technological stack is pretty open right now.  We have our Android app authored in Java, a prototype iOS app authored in Swift, and a very conventional light backend written in Python.  Our infrastructure is running on Google Cloud Platform.  We are early stage enough that nothing is set in stone, so anyone can make a case for using any technology they think would help us reach our goals more effectively.

Like all the other tech startups on the planet, we think that machine learning is going to play a fundamental part in our future.  We generate a lot of data, so data science is something we dedicate a lot of time to.

We are looking to make big waves in this industry and we want talented, interesting people to join us on the journey.


Who Are You?

First and foremost, you’re a backend specialist.  You’ve launched real services, with large user bases, which you’ve maintained and iterated.  You’ve made mistakes but you’ve learned from them.  You enjoy building solid, scalable, APIs and you believe that automated testing isn’t optional.  You can architect sensible database schemas in your sleep, and you like rolling your sleeves up with the infrastructure.

You’ve collaborated using some of the best industry practices around agile development, know how to extract requirements from stakeholders, and can work effectively with other developers who consume your services.

You have knowledge of Python, and have hopefully encountered Flask and Postgres.  You might know how to use Google Cloud Platform, and if not you’ve spent some time with Amazon Web Services or Azure.


What We Can Offer You?

The opportunity to build a global service with ambitions to acquire millions of users, pretty much from scratch, in a dynamic start-up environment.

We offer a fair salary and discretionary bonus, 25 days of paid holidays, life assurance of 4 times your annual salary, a pension scheme, a cycle to work scheme, and childcare vouchers.  Everyone here enjoys flexible benefits, with options including private medical, dental, and gym subsidies.

Possibly most importantly, we offer the chance to change people’s lives for the better.


What Next?

If it sounds like we’re a good match for what you want to be doing next, then let’s start with a conversation.  Our Head of Engineering would love to have a 30-60 minute video call to discuss your career, your aspirations, and maybe throw in a couple of technical questions to get a feel for your skills and approach.  They will also answer any questions you might have about EnglishScore.

After that we might invite you to our London office to meet with the team, dig a little deeper on your technical skills, and to share with you some of the exciting things we’re working on.

Sound like a plan?  Get in touch!  We’d love to hear from you if you think you’re the person we’re looking for.



Individuals seeking employment at Blenheim Chalcot are considered without regards to race, colour, religion, national origin, age, sex, marital status, ancestry, physical or mental disability, veteran status, or sexual orientation.


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