Software Engineer at CitySwift

About CitySwift

CitySwift is the world’s leading performance optimisation platform for public transport, enabling data-driven decision-making for some of the largest transport networks globally. Backed by over €15 million in venture capital funding, we partner with major public transport operators and government authorities, including Go-Ahead Group, Transport for London, and many more. CitySwift is experiencing accelerated growth, with 117% year-over-year revenue growth in 2025.

Our mission is to increase the adoption of sustainable public transport worldwide. Today, our platform optimises more than 3 billion passenger journeys annually, and our target is to reach 10 billion journeys by the end of 2026.

At CitySwift, you’ll have the opportunity to take ownership, make a measurable impact, and grow professionally as part of a collaborative, mission-driven team. Join us in shaping the future of public transport by driving the next phase of CitySwift’s growth.

How we work
CitySwift is headquartered in Ireland, with our second office hub in London. We also have team members based in Australia, Singapore and across parts of the EU.

Hybrid working is the default in Ireland (with some exceptions), with remote and hybrid options across the UK and beyond. All roles have core hours of 10am to 4pm, giving you flexibility around how you structure your day. Collaboration really matters to us, with quarterly and bi-monthly meet-ups depending on your department or area of work, but we’re sensible about it – we won’t ask you to come into the office to tick a box. Our offices are designed for proper collaboration (and are dog friendly!).

We also believe trust and rest matter. Annual leave starts at 25 days, and our work abroad programme gives you the option to work from another country for up to six weeks. We move fast, expect a lot from each other and back people to do their best work.

The role
This role exists because of growth. You’ll be stepping into real problems that matter now, not hypotheticals, and will be expected to make things better, faster and more scalable.

Our Development Ecosystem

• Google Cloud Platform
• BigQuery
• Firestore
• LookerML
• Dataflow
• Cloud Composer
• Cloud Functions
• Java and Kotlin
• Python
• Spring Boot
• Apache Beam
• Airflow
• ReactJS
• PostgreSQL

About The Team

Our engineers are enthusiastic, inclusive, team players. They empathise with the users' pain points and work together to solve tough problems. They also share supportive feedback to help each other grow and improve. Our engineers are the kind of people who are committed to helping others, and using tech for good. It’s a friendly environment with regular tech talks, tech team coffee breaks and social clubs making it easier to connect with your colleagues.

What you’ll achieve:

• You will work with cross-functional development teams to deliver new features and enhancements in our existing products
• You’ll collaborate with your peers on best practices and promote knowledge sharing.
• You’ll work collaboratively through an agile development process that promotes team communication.

What you need:

• Excitement by joining a growing, fast-paced & dynamic start-up solving a real-world problem
• BS degree in Computer Science, Software Engineering, or related domains
• 1-2 years of experience in a hands-on, software engineering environment
• Exposure to any of the main cloud platforms
• Experience building software and tools with Python, Java or Kotlin
• Exposure to any modern development frameworks. For example spring boot or flask
• Experience working on the end to end development of software projects
• Experience with agile software development lifecycles
• Understanding of software best practices and test driven development

It will be great if you also have some:

• Experience working with relational database systems
• Experience with CI/CD tools
• Experience with Unix/Linux systems and shell scripts
• Knowledge of best practice data structures and optimization algorithms.
• Exposure to geo-spatial data systems
• Experience with public transit data

What you’ll get at CitySwift

• A role with real scope, where your impact is visible, your salary is reviewed as we grow, and there are career progression opportunities as the company scales and internationalises.
• Comprehensive health and life insurance through Laya Healthcare in Ireland and Aviva in the UK.
• Flexible working with hybrid working as the default in Ireland, core hours of 10am to 4pm, remote options depending on role and a work abroad programme of up to 6 weeks.
• 25 days annual leave from day one, increasing by half a day per year of service, plus company days off, a half day before public holidays and an end of year shutdown.
• Enhanced family leave, including 6 months fully paid maternity leave and 3 weeks paid paternity leave after 18 months’ service (and wedding leave!)
• And on top of all of this, the usuals done well. A matching pension scheme that increases with service, paid sick leave, bike to work scheme, wellbeing supports, and an employee referral programme with rewards of up to €4,000 (or equivalent) per referral.