Senior Kotlin Developer - Backend (FTC)

Introducing Masabi 

// At Masabi, we’re driving the fare payment revolution, powering the journeys of millions all over the world. We build fare collection platforms that allow riders to seamlessly buy and present tickets for public transport either on their mobile phones, from a ticket machine, or even by tapping their bank card to travel. 

Our Justride platform is used in over 250 locations globally, including some of the largest cities in the world. With our industry-first mobile ticketing SDK, we’ve partnered with large players in the transport space, including Uber, Moovit and Transit. 

Your own journey is important to us too. Choosing a role here means joining a network of innovators from all walks of life; a group of passionate individuals who consistently deliver. Here, you’ll find the tools you need to build the career you want. Whether you’re taking the direct route or trying a new path, we’ll support you no matter what. 

Duration: This is a fixed-term contract with an initial duration of 4 months.

The Role

// As a Senior Kotlin Developer (Fixed-Term Contractor) at Masabi, you will be responsible for delivering key features and enhancements across multiple backend services that are central to our systems. This role involves working on specific projects, including expanding our fare engine calculations and architecture, which will provide opportunities to engage with diverse technologies and solve complex technical challenges.

You will collaborate closely with specialists in development, testing, and other relevant areas to deliver high-quality solutions within the agreed project timelines. This is a great opportunity for an experienced contractor to contribute meaningfully to critical initiatives while working in a dynamic and fast-paced environment.

Location

// This role is available in a fully remote contract model ONLY for candidates located in the UK.

Our Stack

// We don’t expect you to know the whole of our stack. We want the stack to keep evolving as developers identify new tools and frameworks.

• Kotlin & Java

• REST

• Git / Gradle / Maven / Artifactory

• Amazon tech (DynamoDB, EC2, S3, SQS, Kinesis, etc)

• Kafka

• Spock/Groovy used for testing

• Fully cloud-hosted platform with Infrastructure as Code tooling(Terraform)

About You

• A good command of the English language is required for this role, including the ability to communicate clearly and effectively in both written and spoken English

• Solid core programming skills in Kotlin and the ability to quickly adapt to new technologies and domains within a limited timeframe

• Proven ability to deliver high-quality software that operates at scale within defined project timelines

• Experience working within a project-focused team, contributing expertise to help shape and implement new features efficiently

• Ability to integrate into an existing codebase quickly and follow established development practices while providing valuable insights

• Open to adopting existing processes and frameworks, ensuring alignment with current development standards while bringing a practical approach to problem-solving

• Strong interpersonal skills to collaborate effectively with team members and stakeholders, ensuring smooth project execution

• A goal-oriented and proactive mindset, with the ability to work independently and ensure tasks are completed on schedule

// Careers at Masabi are for people who are going places - people who are moved by our mission to improve accessibility and make fares fair for everyone. We are grateful to be a network of innovators from all walks of life; a group of passionate individuals who consistently deliver. We operate with openness — we celebrate multiple approaches and points of view and strive to create an environment where everyone feels empowered to bring their whole, authentic selves to work.

Whoever you are, just be yourself.

We encourage people from underrepresented backgrounds to apply; we don’t discriminate. Also, please notify our team of your pronouns at any point in your application. We believe in journeys made simple. Excursions made effortless. So, we cancel out confusion and leverage our collective expertise to support transit agencies and make life better for millions of riders — together, we are creating a future.

We’re already powering journeys - are you ready to join us?