Senior Backend Engineer(Remote)


Madrid, ES
  • Job Type: Full-Time
  • Function: Engineering Software
  • Post Date: 01/01/2021
  • Website:
  • Company Address: Calle de la Princesa 25, Madrid, 28008

About Lingokids

We’re the playlearning™ app for more than 10 million families around the world. We teach kids important skills in English and help them discover their natural superpowers. Creativity. Collaboration. Critical thinking. Communication. These are some of the skills that children need to thrive. Parents can join the adventure of learning too. We’ve developed more than 600 games and activities kids and parents can play together. Our dream is to have a positive impact on 100 million families and we’re playworking™ hard to make it a reality!

Job Description

Your mission
Are you ready to Playwork™ with us? 

Lingokids is looking for a Senior Backend Engineer to join our backend chapter and help our product squads build and deliver amazing educational experiences to the children of the millions of families that use our mobile application.

At Lingokids we encourage candidates of all different backgrounds and identities to apply. We actively seek to hire individuals with different perspectives and we are eager to continue diversifying our company's culture. We strive to be an inclusive, supportive place where you can do the best work of your career.

Our offices are in Madrid, Spain but the position is open to anyone with experience working remotely. Some overlap with Central European Time is expected though, for those times when a video call is the most efficient way to communicate.

As a Senior Backend Engineer you will take ownership, build upon, and improve the API services that deliver a personalised learning experience to millions of families worldwide. You will also get a chance to work on internal tools that help us better understand our users and offer them exactly what they need.

More specifically, you will:

  • Bring your analytical skills to early product definition sessions and help shape product ideas into technically feasible features.
  • Document product, technical, and architectural decisions for the benefit of both engineering and product audiences.
  • Improve and expand the system we use to track child progress throughout our extensive educational curriculum.
  • Integrate with our Recommendations System to deliver personalised content that matches each and every child’s learning path.
  • Build internal tools that will help us scale educational content production by an order of magnitude.
  • Build upon integrations with third-party CRM and forums that provide parents with a superior child progress reporting experience.
  • Work on a majestic modular monolith built with Ruby on Rails, PostgreSQL, Redis, and Sidekiq. 
  • Own your work from development to production and ensure its quality, maintainability and supportability.
Your profile
Are you our  Senior Backend Engineer?
The ideal teammate for us would be someone who believes that communication, empathy, inquisitiveness, and open mindedness are fundamental to being successful in any endeavour.

You should:

  • Have considerable experience designing and developing APIs with Ruby on Rails that scale to thousands of requests per minute. 
  • A solid understanding of the backend stack: HTTP, Relational Databases, Background Processing Systems, Asynchronous Messaging Systems
  • Some experience in both horizontal and vertical scaling of backend systems
  • Be comfortable working with HTML, CSS, and JavaScript, especially to build admin interfaces.

We also look out for:

  • A DevOps mentality of owning a service all the way to production.
  • An appreciation for good User Experience and have an eye for good Visual Design and attention to detail.

English is a must. We are a multicultural team and we are providing a service in English so, we don't care about certificates but we expect you to be able to communicate fluently.

You should feel equally comfortable communicating in long-form writing. Given the circumstances we have become a fully remote company and we are firm believers that being articulate in both spoken and written long-form asynchronous communication is key to working efficiently together.

Experience working closely with non-technical stakeholders to refine requirements and bring them to life is a must as we expect our Senior Backend Engineer to be the driving force for the entire lifecycle of development.

If you think you don't tick all the boxes, we'd still love to hear from you. Nobody checks every box, and we are looking for someone excited to join the team.

If you are the ONE, we have a lot to offer... 

We are not perfect, but we are proud of our culture and work hard to make sure every Lingoer loves what they do. These are some of the things we offer you for being a Lingoer:

  • Competitive Salary.
  • Visa Sponsorship: We will fully-sponsor a visa to come work with us if needed.
  • Holidays: 23 days of paid leave, and 14 days of bank holidays a year!
  • Family Leave Enjoy up to 4 months of paid family leave, regardless of when you joined.
  • Stock-options: Joining the Lingokids journey means you own part of the company.
  • Flexible Hours & Remote working: We care about the results you bring to the team. 9 to 6 and constant commuting is not for us either.
  • The gear you need:, Whether it’s mac or windows, a big screen or a laptop stand, whatever you need to do your job, we get it for you.
  • Diverse Environment: Gender-balanced and multicultural team with 16+ nationalities and day-to-day work in English.
  • Training: We support you to get better at your job with all the books, conferences and training you need. Including language lessons at the office in ES, EN & PT
  • Free Friday Lunch: Company allowance to be able to order lunch every Friday with Deliveroo!

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Disclaimer: Local Candidates Only
This company does NOT accept candidates from outside recruiting firms. Agency contacts are not welcome.