Backend Tech Lead (Java/Kotlin)

Reposted Yesterday
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Szeged, Szegedi járás, Csongrád-Csanád, HUN
Hybrid
Senior level
Information Technology • Consulting
The Role
The Backend Tech Lead will guide Kotlin developers, design scalable systems, uphold code quality, mentor team members, and manage operational issues.
Summary Generated by Built In
Our vision is simple yet powerful: we want to create a place where engineers thrive, taking on exciting projects and using the latest technologies, free from the shackles of legacy solutions.

Thanks to the diverse range of industries we work with, our days are never boring: from world-class apps to AR solutions or even programming robots, we’ve got it all covered. We don’t just write code for our screens; rather, we develop impactful products used by millions every day: let them be large-scale public transport applications, leading fintech platforms, or storage solutions contributing to a greener future.

We are a team of 100+ engineers (Java, JavaScript, Android, iOS, NodeJS and dotnet platforms) and QA engineers with our coding fingers at the ready working on the next big thing. We value openness, modesty, hard work, and simple yet great solutions.

We are looking for a Backend Tech Lead to join our team and spearhead the design, development, and evolution of our software applications. In this role, you will play a pivotal part in setting technical direction, guiding our Kotlin backend developers, and collaborating closely with architects to build scalable, secure, and high-performance systems. If you are a clean code enthusiast who loves mentoring and staying ahead of the Java/Kotlin curve, we'd love to hear from you.

Your day to day will include:

  • 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

What makes you thrive here:

  • 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

Why join Supercharge?

  • 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 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 Szeged 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.

About our Szeged office

After focusing on our International expansion for years, we felt that it was time to think locally and open a second office in Hungary, in the vibrant city of Szeged. With its bustling tech and social scene, stunning architecture, and laid-back atmosphere, the city has all that a true Supercharger needs. We are here to create a place where IT professionals can thrive, find international challenges, opportunities to grow, and amazing company culture.

Skills Required

  • Proficiency in Java ecosystem and familiarity with Java 17, 21
  • Experience with Kotlin
  • Familiarity with backend frameworks such as Spring, Micronaut, or similar
  • Experience with AI-powered coding tools/agents
  • Hands-on experience with SQL or NoSQL databases
  • Expertise in Containerization and Kubernetes
  • Familiarity with at least one public cloud provider (AWS, GCP, Azure)
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The Company
London, England
231 Employees
Year Founded: 2010

What We Do

At Supercharge, we are your innovation partner to turn disruption into opportunity. We are a next-generation product innovation agency driving growth, efficiency, and resiliency for our partners. We create smart product strategies, design delightful interfaces and build robust, AI-driven software to turn some of the most challenging digital initiatives of our partners into success stories. Our in-house team of over 200 digital experts across our European and North American offices are passionately united in the pursuit of discovering and building better futures. We cut through business, tech, and regulatory complexity and fuse behavior science-based design and unique data & AI-focused technical competence to propel your business. We believe that innovation is a team effort: our strategists, designers, developers, and engineers work shoulder to shoulder to enable what yesterday was still impossible. Supercharge has been one of the fastest-growing tech companies in Europe according to Financial Times (FT1000) and Deloitte (Fast50) for two years running. Having delivered over 250 digital products for our partners internationally, we are pioneers in redefining, diversifying, and protecting businesses to achieve long-term success. Products delivered by our team stretch from major mobile banks to solutions powering successful startups. By working with us, you will find yourself among leading companies like Ericsson, Vodafone, Santander, Metlife, Unilever, Delivery Hero, or Pfizer. Let’s talk about your future as a digital leader! Reach out now

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