PHP/Kotlin Backend Engineer - Roaming

About Monta

Monta powers the EV charging ecosystem. With 300,000+ monthly users and millions of charge sessions every month, our platform accelerates the electrification of mobility.

This is a fast-moving place. The problems are hard, the pace is quick, and the bar is high. If you like real ownership, figuring things out, and seeing the direct impact of your work, you’ll do well with us.

AI is built into how we work. It helps us ship faster, make better decisions, and stay lean. Everyone at Monta is expected to use AI tools thoughtfully — and to find smart ways to use them to move the work forward.

Our principles keep us grounded: Build Together & Finish, Sweat the Details, Customer First, and Aim for the Moon.

The best part of Monta is the people — sharp, ambitious, and good to be around. You’ll be challenged, supported, and trusted to deliver.

We’re looking for a PHP/Kotlin Backend Engineer who’s ready to roll up their sleeves, take ownership, and build with us — through the grind and the wins.

This Is What You Will Achieve
Power the #1 CPMS & EV charging Platform: Build the robust, scalable infrastructure necessary to make Monta the undisputed global leader in Charge Point Management Systems.
Scale the Roaming Network: Strengthen our existing roaming functionality. Your work will directly impact how seamlessly thousands of EV drivers connect to charging points across different networks.
Innovate on Standards: Implement exciting new features including the latest OCPI versions and Plug & Charge capabilities.
Turn vision into reality: Balance technical ambition with sleeves-rolled-up execution to ensure our fleet and roaming offerings remain best-in-class.
What You’ll Do
Own the full lifecycle: Scope out requirements and plan new features in collaboration with the team, taking code from ideation to production.
Cross-team execution: Work closely with Ops, Product, Frontend and other Backend teams to navigate ambiguity and ensure features integrate seamlessly.
Ensure quality at speed: Perform automated validation and verification testing while supporting your teammates with thoughtful code reviews.
Monitor and Maintain: Utilize tools like Grafana and Loki to monitor system health, ensuring reliability for the drivers who depend on us.
Own outcomes in a high-trust environment where we value execution over perfection.
Navigate ambiguity and shifting priorities — keeping momentum when it matters most.
Celebrate wins and learn fast from misses alongside an ambitious, diverse team.
Push boundaries with courage and resilience while staying true to our DNA.
What We’re Looking For
Mid-level or above Backend Experience: You have solid experience building scalable backend systems.
Our Tech Stack: You are proficient in Kotlin (Micronaut) and PHP (Laravel), or have strong experience in one with the ability to quickly master the other in a mixed environment.
OCPI Expertise: You have experience working with OCPI (Open Charge Point Interface) and understand the complexities of the EV roaming ecosystem.
Clear & pragmatic communicator who builds alignment fast.
Authentic team player with empathy, openness, and ownership.
Comfortable with AI-powered tools to accelerate your work (Claude, Gemini, Codex, etc.), with the willingness to learn more.

If the mission excites you but your experience isn’t a perfect 1:1 match, apply anyway — we care about potential, not perfection.

AI Competency

You’ll be expected to work with AI-powered tools. Some we use:

GitHub Copilot / Claude Code
ChatGPT / Gemini / Claude
Notion AI (docs, knowledge, meeting notes)
AI-enhanced testing & monitoring (e.g., generative QA, Grafana ML)

We don’t expect mastery of all — but we expect comfort learning, experimenting, and adopting AI responsibly

Why Monta
Impact, not easy mode — your work matters, and you’ll feel it every day.
Ownership from day one — we don’t micromanage, we expect you to deliver.
The grind is real — priorities shift, and flexibility is sometimes needed to get things across the finish line. But so are the rewards: impact, growth, and a team that has your back.
The people are extraordinary — talented, driven, and fun to work with. You’ll be challenged, supported, and inspired in equal measure

What We Offer

A yearly education budget and extra days off to use it.

A friendly and social company culture with movie nights, Friday bars, pub crawls, and more.

Free lunch every day.

Pension & health coverage to keep you secure for today and tomorrow.

Paid parental leave to support life’s big moments.

Warrants program - be part of our growth story.

Flexible working hours; as long as you’re at key meetings and delivering great work, we trust you to manage your schedule.

A one month electric vehicle introduction program (plus access to a shared company EV).

Please send us your application in English.

To succeed in this position, your spoken and written English skills need to be proficient. Since Monta is a globally active company, you’ll be communicating often and regularly with our co-workers and partners around the world, making your professional English knowledge essential.

Please note that we don’t accept unsolicited applications from headhunters or recruitment agencies. Unsolicited applications sent to our company or co-workers are considered to be the property of Monta, and we won’t agree to pay any referral compensation or recruiter fee without a signed agreement.

Find out more by visiting https://monta.com/uk/careers/