Guiding the Kotlin backend developers in designing, developing, and maintaining software applications, while setting technical direction and upholding code quality standards
Collaborating with the software architect to define and evolve system architecture for enhanced scalability, performance, and security
Actively engaging in coding, code review, and the enforcement of best practices
Collaborate closely with our Customer Support (L1), Infrastructure Support (L2), and Application Support (L3) teams to efficiently manage escalations
helping identify, troubleshoot, and resolve operational issues that keep our clients running smoothly
Participate in a rotating on-call schedule to ensure reliable 24/7 client support paired with appropriate compensation for your time and expertise
Mentoring and coaching team members to promote continuous learning and growth
Efficiently managing tasks and providing technical insights to ensure on-time and on-scope project delivery
Maintaining consistent communication with the Project Manager to ensure alignment and shared objectives
Staying up-to-date with the latest Java, Kotlin, backend technologies, frameworks, and tools, and introducing relevant technologies to enhance development processes

Proficiency in Java ecosystem, familiarity with Java 17, 21
Kotlin is our choice of language on the JDK, so experience with it is a huge plus
Familiarity with back-end frameworks such as Spring, Micronaut, or similar technologies
Experience with AI-powered coding tools/agents
A strong OOP mindset and a commitment to upholding SOLID principles
Hands-on experience with SQL or NoSQL databases
A genuine interest in staying up-to-date with the latest industry trends
A passion for writing clean code; if you're an Uncle Bob fan, you're more than welcome
Expertise in Containerization and Kubernetes (that would be a significant advantage)
Familiarity with at least one public cloud provider
our focus is on AWS, but we are also using GCP and Azure if these fit better to our needs
A mindset that encourages innovation, inspiring team members to bring forth fresh ideas and adapt to changing industry landscapes
A keen eye for the latest and greatest trends in the world of backend development
The ability to provide constructive feedback to team members, creating a space for personal and professional growth
A commitment to always having your project mates' backs and offering a helping hand when they need it
At least an intermediate level of English language skills since our team operates internationally.

To unleash your full potential, we’re here to help you grow every step of the way with exciting international projects, access to inspiring conferences, in-house soft skill trainings, and online courses. We’ll even support your English classes, and with our skill matrix, you’ll always have a clear path to learn.
To feel your best, your wellbeing truly matters to us. That’s why we offer health coverage with Medicare, Life1 gym access to keep you moving, and extra sick days for those moments you just need a little rest. We celebrate milestones with a fully paid month off after five years, offer extra paternity leave for growing families, and provide support through our Employee Assistance Program.
To have a blast, you’ll join a friendly team of 200+ people, all passionate about building amazing digital products. Whether it’s our Summercharge festival, a football match, quiz night, or just grabbing a drink with teammates, there’s always something to look forward to. And with our buddy system, you’ll feel part of the team from day one.
To brighten your day, our dog-friendly office in the heart of Budapest is filled with good vibes, great coffee, tasty snacks (yes, including Túró Rudi!), and cozy corners to relax, connect, or have a little fun when you need a break. You’ll also have a yearly personal budget and a company library to keep your curiosity growing.

Backend Tech Lead, Java/Kotlin

Key skills