Mid-level Backend Engineer (Kotlin/PHP) - Roaming

Monta; Berlin; Vor Ort; EUR 60.000 - 80.000; Vollzeit

Zusammenfassung

A leading company in EV charging is looking for a Mid-level Backend Engineer (Kotlin/PHP) in Berlin. The role involves building and maintaining scalable infrastructure for the #1 CPMS & EV charging platform. Candidates should have experience with backend development using Kotlin and PHP, be comfortable with AI tools, and have strong communication skills. This full-time position offers a dynamic work environment where you can directly impact thousands of EV drivers daily and thrive among talented and driven colleagues.

Leistungen

Yearly education budget

Free daily lunch

Flexible working hours

Paid parental leave

Qualifikationen

• Experience in building scalable backend systems.
• Worked with Kotlin (Micronaut) and PHP (Laravel), or one with the ability to learn the other.
• Clear and pragmatic communication skills.

Aufgaben

• Scope out requirements and plan new features in collaboration with the team.
• Cross-team execution and integration of features.
• Perform automated validation and verification testing.

Kenntnisse

Kotlin

PHP

Backend development

AI tools usage

Tools

Grafana

Loki

AWS

Kubernetes

Jobbeschreibung

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Holiday heads-up ✨ Our TA team will be on vacation and back on 13 January, so responses may take a little longer than usual. Thanks for your patience and happy holidays!

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.

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 Roaming 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.

A Brief Overview Of Our Tech Stack

• PHP/Laravel monolith
• Kotlin services with Micronaut and Exposed
• Dart/Flutter (incl. Flutter Web) for apps
• Typescript/React (+Next.js) for web apps and rapid prototyping
• Observability via Prometheus, Grafana, and OpenSearch/Kibana
• AWS + Kubernetes with Helm and Argo CD for deployments

What We’re Looking For

• Junior ready for the next jump or mid-level backend experience: You have experience building scalable backend systems.
• Tech Stack: You have worked in Kotlin (Micronaut) and PHP (Laravel), or have experience in one with the ability to quickly master the other in a mixed environment.
• 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

• 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 AI, but we expect comfort learning, experimenting, and adopting AI responsibly.

Why Monta

• Ownership from day one — we don’t micromanage, we expect you to deliver.
• Being number one is not easy — 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/

Monta is building the platform that powers the future of EV charging. We connect hardware, software, businesses, and drivers into one seamless ecosystem. Our mission is to make charging simple, reliable, and scalable for everyone.

Seniority level

Mid-Senior level

Employment type

Full-time

Job function

Engineering and Information Technology

Industries

Software Development

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