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.
The Role_
// Masabi is hiring a Chief Architect, a collaborative, deeply technical and hands-on leader to shape our technology strategy, embed architectural standards and lead our Data and AI vision for our multi-tenant SaaS platform.
You’ll be Masabi’s key architectural partner, trusted for your clarity, technical insight, and ability to bring people with you. You’ll work across all levels of the organisation to ensure that our architecture supports scalability, resilience, security, and developer experience as we grow.
You’ll partner closely with the CPO and VP of Engineering to co-own strategic implementation, switching easily between 10,000-foot architecture and working in the codebase. You’ll lead our team of four Principal Engineers, supporting their growth, aligning them on technical direction, and fostering collaboration across squads and domains.
You’ll also champion thoughtful, responsible adoption of AI/ML capabilities, both as product features and to enhance developer workflows, embedding AI in ways that deliver meaningful value and long-term impact.
Location_
// This role is remote within the UK, with occasional travel to our London office for team meetings, planning sessions, or company events. If you're London-based, you’re welcome to work from the office on a hybrid basis.
Responsibilities_
Architectural LeadershipPartner with the VP of Engineering to define and evolve our long-term architectural vision, acting as the ultimate design authority while aligning with delivery priorities
Own the architectural direction of Masabi’s multi-tenant SaaS platform, with a strategic focus on AI and Data as innovation streams
Integrate and balance architectural direction, performance, compliance, and security into a single, outcome-oriented plan
Establish and embed architectural principles and participate in key design decisions to support alignment across teams
Promote best practices in system design, infrastructure design, reliability, observability, and performance
Stay actively engaged with code, tools, and infrastructure, leading through shared standards, not gatekeeping
Collaborate with product, engineering, and platform teams to de-risk decisions and enable confident delivery
Identify and nurture opportunities to embed AI/ML into our platform and engineering processes, ensuring value to customers and teams
Act as a supportive expert in Data and AI development, guiding standards, contributing to code, and enabling scalable, responsible implementation
Evaluate and recommend emerging tools and practices that improve scalability, reliability, and developer experience
Partner with Product and Engineering to develop a team that identifies and pilots AI-enabled capabilities that can be commercialised and scaled into the Masabi platform
Collaborate with Product and Engineering leadership to align platform strategy with technical sustainability and scale
Mentor and coach Principal Engineers and other senior ICs, investing in technical leadership development
Partner with the VP of Engineering to ensure teams deliver against a coherent architecture, while maintaining agility and shared ownership
Foster a culture of inclusion, technical excellence, and sustainable delivery practices
Collaborate with platform and security teams to ensure alignment with compliance standards (SOC2, ISO27001, PCI)
Embed secure-by-design and fail-safe patterns across the platform
Strengthen operational awareness through instrumentation and observability tooling
Our Stack_
// At Masabi, we take a modern, pragmatic approach to technology, optimising for scalability, resilience, and developer experience.
Kotlin (Backend & Mobile), TypeScript (Web), Python
KrakenD & Ktor (APIs), Vue/Nuxt (Frontend), Capacitor (Hybrid Mobile)
Fully cloud-hosted on AWS - Fargate, Lambda, DynamoDB, S3, SSM, KMS, etc.
Kafka / Kafka Streams, DynamoDB as the primary store, limited use of Aurora
GitLab CI/CD, Terraform & Terragrunt (IaC), Renovate (Dependencies)
Grafana Cloud for metrics, logs, traces and SLOs; OpenTelemetry as our instrumentation standard
Strong emphasis on meaningful tests at all levels of the testing pyramid
AI tooling: JetBrains Junie, Amazon Q, Kiro, GitLab Duo, CodeRabbit, ChatGPT, Gemini, Microsoft Copilot
We’re intentional about our tooling and open to better ways of doing things; this role will shape where we go next.
About You_
Hands-on, empathetic technical leader, experienced in distributed systems, platform-scale SaaS, and architectural ownership
Someone who thrives in cross-functional environments and can communicate clearly with engineers, product managers, and commercial stakeholders alike
Experience working in high-availability, regulated, or security-conscious environments
Passionate about AI/ML and data-driven engineering, whether in product, tooling, or ops
Mentored senior engineers and driven technical alignment in growing orgs
Someone who leads with empathy, humility, and pragmatism
Bonus Points_
Experience in fare payments, mobility, fintech, or embedded systems
Exposure to M&A or platform re-architecture in scaling environments
Contributions to open-source, architecture communities, or thought leadership
Some of Our Benefits_
25 days of holiday per year plus the option to buy another 5 days pro-rated
Private Healthcare via AXA, including pre-existing conditions and mental health
Life Insurance
Menopause support
Ability to work for up to 3 months per year from any country in the world (certain limitations)
Pension scheme
Training allowance of up to £1000 per year
£200 annual allowance for any home office needs or improvements
Enhanced family leave pay
Careers at Masabi are for people going places - driven by a mission to make transit fair and accessible for all.
We are a network of innovators from all walks of life, passionate about making a difference. At Masabi, we operate with openness and trust, creating an environment where everyone feels empowered to bring their whole, authentic selves to work.
Whoever you are, just be yourself.
We welcome applications from underrepresented backgrounds and encourage you to share your pronouns at any stage. Together, we simplify journeys, remove barriers, and improve daily life for millions.
Why Join Masabi?
Driven by Purpose – We believe in journeys made simple. The work isn’t always easy, but the best things never are.
Encouraged to Accelerate – Masabi is going places and our people are in the driving seat. Whether you’re taking the direct route or exploring new paths, we support your journey.
Advancing with Empathy – We put people first and foster a culture of learning, not blame. No matter your cargo, we share the load.
We’re already powering journeys - are you ready to join us?
