Onfido is hiring a

Back-End Developer (Elixir)

Lisboa, Portugal

We’re looking for a dynamic software engineer to help us shape the future of digital identity. We’re a fast-growing, product-driven scale-up where you’ll be responsible for developing and maintaining systems for verification. We’re flexible about using the best technology to achieve this, so you’ll get to play with some exciting tech:

  • Python, Ruby and Elixir for our service code
  • React and Redux for frontend work
  • Tensorflow for Machine Learning / Computer Vision
  • Kubernetes and Docker to package and run services
  • AWS for underlying infrastructure


Day to day you’ll work in a cross-functional team to design, build, test and ship terrific features. You’ll also work closely with product managers to best understand the needs of Onfido's users and customers and provide technical guidance, support and advice to other engineers at Onfido. And as well as working on our identity verification systems you’ll help scale our infrastructure in line with business growth.

We’re as proud of the culture we’ve built in Lisbon, as the quality of the software we ship! If successful you'll join a group of smart, friendly and ambitious engineers and researchers - a team of diverse but like-minded individuals with shared values.

You can learn more about our product engineering team and the work we do on our Tech blog.


What we're hoping to see on your CV and application:


  • Interest in online identity and solving problems associated with identity and personal data
  • Strong software engineering skills
  • Experience coding in Elixir or Erlang
  • Experience with version control (e.g. Git)
  • Great communication skills (both written and spoken)


  • BSc/MSc in Computer Science, Engineering or other science subject
  • Successfully delivered ML-driven products to market
  • Good working knowledge of the other tools in our dev stack, including AWS, Docker, Kubernetes, Terraform

To be a great fit at Onfido, we look for individuals who share our values. We have over 35 nationalities in our growing team, making this an exciting and culturally enriching place to work. Check out the team and Life at Onfido!


We're committed to making Onfido a fantastic place to work, so we go to great lengths to give you what you need to succeed. You’ll receive:

  • A meaningful equity allocation
  • 22 days holiday
  • Health Cash Plan subsiding medical expenses (e.g. dental, optical, doctors plus many others)
  • Sanctus mental health coaching
  • Flexible working
  • Volunteer days - 2 days paid time off per year, in addition to holiday allowance, to volunteer
  • Nutrition advice
  • Subsidised gym or sports, therapy, home cleaning or childcare up to €65 per month
  • Holmes place gym subscription with access to all group classes and spa
  • Dedicated learning opportunities including language classes (currently Spanish, French and English), an unlimited budget for software and books, a training budget for conferences and regular lunch and learns
  • A fully stocked kitchen with unlimited breakfast, drinks, snacks and fresh fruit every day
  • Quarterly team socials, monthly company dinners and a budget for cross-team coffees and lunches
  • Open and transparent culture—we come together on a weekly basis for a global forum (OnFriday) where we share updates and strategic plans, and engage with each other informally over food and drink.

Live date: 4th October 2019
Close date: 5th November 2019
Salary: Highly Competitive

The interview process will involve:

  • Simple profile matching from us - assessing your application against the role
  • A two-way conversation where we both can find out a bit more about each other
  • Do at home task where you give a bit of an insight into how you approach problem-solving
  • On-site two-way technical and cultural conversations with the team

This process should take around two to three weeks, depending on diaries.

Once complete and provided we make you an offer, we will ask you to undertake a background check prior to joining Onfido. We consider this necessary in order to protect Onfido, our clients, and the personal data that we process.

We’re proud to be an equal opportunity employer and we value diversity at Onfido. We don’t discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

Similar jobs

Other jobs at Onfido