Senior Full Stack Developer Wednesday 2 June 2021 - United Kingdom

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Nine Twenty are partnered with a Unique Games specialist and we are looking for a Full Stack Developer to join our growing business.

What do we do?

A young, exciting, and energetic company specialising in helping our clients acquire, retain, and monetise customers via web and mobile apps in the form of free and pay-to-play games. We use the science of gamification to encourage desired behaviours. The company is growing, and we have ambitions to be a leading games provider, and we have been gaining recognition nationally and abroad.

Our current clients are multi-national I-gaming companies based in Europe, Africa, Asia, and the USA, and we have started to expand into non-I-gaming markets.

Who are we looking for?

We are looking for someone confident, has an eye for detail, can solve problems, balance multiple deadlines, and is happy to help others.

If you're looking to join a team where you'll make a real difference and where you'll be heard and valued – please apply!

What can we offer you?

  • A fun, relaxed, and collaborative environment, working in a company built on honesty that has flexible hours
  • Joining a growing company that's evolving all the time, giving you the opportunity to test yourself and your role to discover your skills
  • Being surrounded by a group of bright, motivated people. We are a friendly, straightforward, and talented bunch that keeps it light-hearted

Job Brief

We're looking for you to join our team as a Senior full-stack developer, reporting directly to the Lead Developer. You will build a variety of games for our clients and backend gaming solutions and handle third-party integrations. Once the games are live, you will be responsible for running those games in the production environment and any ongoing development work required.

Responsibilities include but are not limited to

  • The development of our games from inception to completion
  • Collaborating with other technical and design team members to deliver applications on time and on budget
  • Act as the lead developer's deputy when required
  • Work with and support other developers and teammates
  • With the help of the CTO and Lead Developers, undertake thorough Quality Assurance testing on projects to ensure the final delivery meets requirements and scope
  • Continual testing and bug fixing for the apps that we have live
  • Attend daily stand-ups and contribute to team planning sessions
  • Stay abreast of digital tools, platforms, and industry trends


  • 5+ years experience in one or more of the main technologies we use: React.js, Node, HTML/CSS, Postgres, Web API, Git or understanding of other major programming languages or frontend technologies such as Java, C#
  • Demonstrable experience in building complex web-based systems
  • Background in integrating third party (RESTful) APIs and building APIs
  • Able to work well in an agile environment
  • Great interpersonal skills
  • An aptitude for problem-solving, the ability to think on your feet, and action solutions
  • Enjoy working closely with others as part of a close-knit team

Other useful experience and skills

  • Knowledge of some of the other technologies we use including AWS, Docker, Serverless, Google analytics, common web security techniques
  • Knowledge of building backend services and designing and maintaining databases

Employee Package and Benefits

  • Competitive salary
  • Flexible working
  • 32 days holiday
  • Matched pension up to 3% (after 3 months)
  • Share Options (after one year)
  • As much coffee as you can drink