What you’ll be doing

As a Backend Engineer at re:infer, you’ll become a core member of the engineering team, building a scalable, highly available and secure Machine Learning platform.

We’re dedicated to what we’re doing and we work hard in a sustainable and healthy way. If you want to work from home some days that’s cool. All that matters is you contribute effectively and work well with the team.

Skills and experience

Sorted from “essential” to “nice-to-have”:

  • Python development experience

  • Working knowledge of GNU/Linux

  • Experience with service oriented software architecture

  • Experience with high-availability, compute intensive distributed applications

  • Have used “Infrastructure as a Service” (e.g. Google Cloud, AWS)

  • Containers (Docker, CoreOS etc.) and orchestration (e.g. Kubernetes/Mesos)

  • Distributed data storage (e.g. RethinkDB, ElasticSearch) and SQL

  • Rust


The backend is a mixture of Python and Rust and consists of many containerized stateless microservices and a few stateful ones. There’s a mixture of interactive and batch services, with many running heavy numerical loads. Everything gets deployed on Kubernetes in Google Cloud Platform. We use RethinkDB and Elasticsearch for storage and indexing. The frontend is built using Typescript, React, Redux and Webpack.


re:infer was founded by Machine Learning researchers, engineers and entrepreneurs from UCL and Google. We’re a small team of technologists motivated by solving the very hard problem of getting machines to understand conversations.

We work in two-week sprints following the best bits of the Agile approach to software development. Our employees benefit from a relaxed, social atmosphere in which they’re free to make use of our open-plan office to discuss ideas, or put their headphones in and find a quiet

  • We’re looking for someone who’s a hacker at heart, loves programming and can learn quickly and adapt to changing requirements. Beyond that you need to be kind, courteous, motivated, self-starting, honest and responsible.

corner as and when they require. We support flexible working hours and have a generous holiday policy and company pension. Everyone gets their own top-spec laptop and whatever office hardware works for them.


re:infer makes human conversations understood and actionable to machines. We allow our (often non-technical) users to create, manage and deploy state-of-the-art machine learning algorithms against high volume streams of conversational data. Our mission is to make all natural language communication structured, measurable and easily actionable.

re:infer is a B2B SaaS machine learning and analytics platform controlled and monitored via a web UI. We are an early stage startup with significant funding and growing very fast. It is an opportunity to make a major impact at an early stage, to tackle big problems and work towards artificial intelligence with a true grasp of human language.

re:infer’s offices are at Mindspace Aldgate, in the heart of East London.

Salary range £50,000 — 70,000

Dependent on experience