
OAK'S LAB · Prague
ABOUT US OAK’S LAB is a technology partner that helps startups, scaleups, and enterprises build software solutions by deploying empowered product teams. Our in...
OAK’S LAB is a technology partner that helps startups, scaleups, and enterprises build software solutions by deploying empowered
product teams. Our innovative solutions have created market leaders across multiple sectors.
At OAK'S LAB, design is central to everything we build.
We're offering the perfect blend of support and responsibility: You will be quickly empowered to take full ownership of
challenging design initiatives on one of our live products. This isn't theoretical; this is real-world value creation,
collaborating with our experienced engineering and product teams.
Your steep learning curve will be fully supported. You’ll be supported by our Head of Design or a Senior Designer through
consistent mentorship and coaching. We're looking for someone who loves to experiment, learn, operate on the edge of technology
and eager to tackle any challenge, while helping us keep a consistent high bar of quality.
Bring your ambition and a solid portfolio, and join our growing team of 7 talented designers. If you’re ready to showcase your
creativity and have a direct impact on the success of the products we build, we want to hear from you.
principles.
design impact.
We’ve built over 40 successful products. Here are a few from our portfolio:
See our design portfolio here.
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associated with OAK'S LAB. We will never ask for payment information or banking details via email, phone, or any other
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Rohlík Group is one of Europe’s fastest-growing online grocery platforms, changing how people eat and live. Founded in 2014 in the Czech Republic, we’ve grown into a trusted brand with more than one million customers across Czechia, Hungary, Austria, Germany, and Romania. Our mission is simple to make everyday shopping faster, easier, and more sustainable. We combine smart technology, efficient logistics, and a genuine love for great food. From local bakeries and farmers to our own private labels, we make sure every product that reaches our customers is fresh, safe, and top-quality. We’re committed to sustainability and supporting local communities, reducing packaging, and working closely with small producers. For our customers, Rohlik Group is more than just shopping, it's a better way to enjoy good food every day. DEPARTMENT OVERVIEW The Software Development team designs, builds, and maintains our in-house e-grocery platform. We work in agile, cross-functional squads to scale our services, enhance mobile and web user experiences, and support seamless end-to-end automation across our logistics networks. Our engineering culture focuses on high performance, continuous delivery, and pragmatic, customer-centric innovation. ROLE OVERVIEW As a KMP Engineer, you will drive the development, scalability, and quality of our multiplatform and native Android and iOS application architecture across multiple European markets. Operating within an agile, cross-functional squad (ShapeUp), you will champion the delivery of high-value features that directly simplify customer lives and elevate the online grocery shopping experience. This role serves as a technical anchor, collaborating with Product Owners, Designers, and backend engineers to share business logic seamlessly across platforms while mentoring team members to elevate overall engineering excellence. WHAT WE EXPECT FROM YOU / THE POSITION TO PERFORM * Owns the design, execution, and deployment of shared multiplatform code and features using Kotlin Multiplatform (KMP) and Jetpack Compose. * Leads code quality, architecture scalability, application performance tuning, and the technical mentorship of engineering peers through code reviews and pair programming. * Partners with Product Designers and Product Owners to define technical scopes, run product experiments, and build highly intuitive, customer-centric mobile experiences. * Provides input to continuous delivery workflows, engineering process updates, and CI/CD pipeline optimizations (Firebase, GitLab). * Supports cross-functional frontend, mobile, and backend teams to minimize platform architectural complexity and enforce clean engineering standards. WHAT WE LOOK FOR / WHAT WE REQUIRE Required * 5+ years of professional engineering experience developing commercial Android applications. * Proficient expertise in Kotlin, Android Architecture Components, Coroutines, Flow, and Jetpack Compose. * Strong track record of maintaining high-quality code through robust automated unit testing. * AI proficiency and adoption on daily basis * Pragmatic engineering mindset focused on delivering value without over-engineering solutions. * Excellent communication and collaboration skills to operate successfully within cross-functional teams. * Hands-on experience with Kotlin Multiplatform (KMP) * Experience integrating dependency injection frameworks (Koin) and network libraries (Retrofit, Ktor). Preferred * Practical familiarity with setting up and maintaining mobile CI/CD pipelines (Firebase, GitLab). * Background in fast-paced e-commerce or high-throughput logistics software environments. * Experience with iOS WHAT’S IN IT FOR YOU * Fair reward - You’ll get a strong fixed salary, no bonus games, no politics. Great work is rewarded clearly and fairly. * Good food every day - You’ll enjoy a free lunch every day and fresh fruit & veggies in the office. Because good food fuels great work. * Life, not just work - You’ll have real flexibility three days in the office, 2 days at the Home Office where it suits you. And unlimited paid vacation based on trust. * Personal growth - You’ll grow as fast as Rohlik does. Every challenge is a chance to learn and make an impact. * Real impact - What you do here matters. You’ll see your work changing how people eat and live from day one. * Recognition among colleagues - Your effort won’t go unnoticed. You can recognise others (and be recognised) through peer credits to use in our internal cafeteria. * Xtra membership - You’ll get free Xtra membership and 10% cashback on everything you buy on Rohlik.cz. * Sport & wellbeing - You’ll stay active with company sports challenges or a subsidised Multisport card. * A team that sticks together - You’ll work with people who move fast, support each other and celebrate wins together. * If this sounds like you - You’re someone who takes ownership, acts fast and gets things done. Ready to bake something great with us?
Fitify combines the experience of fitness coaches with the latest technology to enable millions of healthy lifestyle changes. We're a fast growing Prague-based team with a growing footprint in the U.S., and a folks working remotely around the globe. We’re looking for people keen to work in a fast-paced, data-driven company and are eager to have a direct impact on people’s well-being. Our team comes from various backgrounds and fitness levels - what we share is a craving to build something truly meaningful. As a part of Fitify, you’ll have the opportunity to build a product that is already used by more than 20 million people and use your skills to create a special health and fitness experience for each one of them. On top of that, you’ll be building the next billion-dollar fitness company from the heart of Europe 🦄 What we offer: 🤩 Great product with a positive impact (millions of healthy lifestyle changes and still counting) 🌎 Seed-stage startup with huge potential (~25 employees neck & neck with apps by Nike, Adidas, or Fitbit...) 🔑 Key role in the company 💰 Employee stock options 💪 Multisport card (free leisure and exercise facilities) 🎓 Opportunity to attend/speak at conferences 🪑 Cool office with gym, cafe, and the greatest rooftop in the center of Prague (Národní Třída) Your role: Participate in the development of the most popular Czech fitness app with millions of users Bring Figma designs to life with attention to detail and responsiveness Take part in architectural decisions, follow the best practices with the MVVM architecture and coroutines Enhance workout scheduling algorithms while maintaining a good test coverage and improving the documentation Keep improving the workout experience on wearable platforms Make customer-centric UI/UX decisions independently Work with product managers and designers to help shape the vision of our platform Your profile: Tech stack: Kotlin, Kotlin Coroutines, Android Jetpack, MVVM, Firebase, Kotlin Multiplatform Full-time, living and breathing the mission Proactive personality with high attention to detail Good feeling for UI/UX Based in Prague (home office up to 50%) Interest in fitness & wellness is a plus Fluent in English Want to know more about us? Download Fitify, and read the story of Fitify on Forbes (CZ)
Fitify combines the experience of fitness coaches with the latest technology to enable millions of healthy lifestyle changes. We're a fast growing Prague-based team with a growing footprint in the U.S., and a folks working remotely around the globe. We’re looking for people keen to work in a fast-paced, data-driven company and are eager to have a direct impact on people’s well-being. Our team comes from various backgrounds and fitness levels - what we share is a craving to build something truly meaningful. As a part of Fitify, you’ll have the opportunity to build a product that is already used by more than 20 million people and use your skills to create a special health and fitness experience for each one of them. On top of that, you’ll be building the next billion-dollar fitness company from the heart of Europe 🦄 What we offer: 🤩 Great product with a positive impact (millions of healthy lifestyle changes and still counting) 🌎 Seed-stage startup with huge potential (~25 employees neck & neck with apps by Nike, Adidas, or Fitbit...) 🔑 Key role in the company 💰 Employee stock options 💪 Multisport card (free leisure and exercise facilities) 🎓 Opportunity to attend/speak at conferences 🪑 Cool office with gym, cafe, and the greatest rooftop in the center of Prague (Národní Třída) Your role: Lead the development of our unique tools for personal trainers allowing hundreds of coaches to multiply their impact and help them maintain millions of healthy lives Working on a new product. No refactoring of obsolete code. Direct impact on the architecture. 2 technical founders. Flat-structured hierarchy. No irrelevant meetings. Craft visually attractive landing pages used to acquire and onboard new users Work with product managers and designers to help shape the vision of our platform Participate in hiring and onboarding of new colleagues as we staff up Your closest teammates would be Matouš (CTO) and Jakub 👋 Your profile: Tech stack: TypeScript, React, node.js, Cloud Functions Full-time, living and breathing the mission Proactive, self-driven, able to work independently Based in Prague (home office up to 50%) Interest in fitness & wellness is a plus Fluent in English Want to know more about us? Download Fitify, and read the story of Fitify on Forbes (CZ)