At a Glance
- Tasks: Own and evolve web assets, drive product decisions, and create engaging user experiences.
- Company: Join Praktika, a leading AI language learning app with over 2 million users.
- Benefits: Equity options, 26 days holiday, health benefits, and an annual educational budget.
- Other info: Dynamic team culture with excellent growth opportunities and yearly off-sites.
- Why this job: Be part of a mission to revolutionise language learning with cutting-edge AI technology.
- Qualifications: Experience in Typescript, React, Node.js, and a strong UI/UX sense.
The predicted salary is between 60000 - 80000 € per year.
About Us
At Praktika, we are building the best AI tutors to teach millions of students new languages. Since we launched our mobile apps in 2023, we have gained over 2 million MAU, become one of the world's top-4 learning apps, and are aiming to lead the AI revolution in education and become the solution of choice for contemporary language learners. We've secured our $30 million Series A funding and are scaling the team to run faster!
About The Role
We are seeking a Senior Full-stack Engineer for our web team to own and evolve all web-facing assets at Praktika — from onboarding flows and landing pages to internal tools and web-based product features. This is a full-cycle product engineering role: you'll contribute to the product vision, design experiments, ship features, and measure impact. You'll work closely with Product, Marketing, and Growth teams to drive conversion, retention, and user experience across all web touchpoints.
What You'll Do At Praktika
- Own the entire web stack — main website, onboarding funnels, customer portals, web app, and internal tools.
- Lead architecture, development, experiments and operations for all web applications.
- Drive product decisions: dive into the product vision, run A/B tests, analyze results, and iterate fast.
- Build adaptive, animated, mobile-first experiences that convert and delight users.
- Integrate with backend services (using Swagger Docs), authentication providers (Google/Apple SSO), and payment gateways (Stripe, PayPal, Revenuecat).
- Set up and optimize analytics, tracking, and conversion funnels in collaboration with Growth and Marketing.
- Ship production-ready code end-to-end — from idea to deployment to monitoring.
What We Are Looking For From You
- Product mindset first: you think in user problems and business outcomes, not just code.
- Extensive experience with Typescript, React (hooks, context, state management) and Node.js.
- Proficiency with modern full-stack tooling: TypeScript, Next.js or similar, CSS-in-JS or Tailwind.
- Hands‑on experience integrating auth providers (Firebase, Auth0), payment systems (Stripe, Revenuecat, PayPal), feature flag platforms (LaunchDarkly, Flagsmith) and analytics/marketing tools (Amplitude, Posthog).
- Strong sense of UI/UX — you care about animations, micro-interactions, and conversion details.
- Comfortable working with RESTful APIs and collaborating with backend teams.
- Data‑driven approach: experience with A/B testing, funnel optimization, and analytics tools.
- Bonus: Portfolio showcasing high-quality web projects and successful conversion experiments.
Why Should You Join Praktika
- Equity that grows with your impact: Equity growth via stock options.
- 26 days of holidays plus bank holidays (34 days per year).
- Yearly off‑sites: Last year was Istanbul.
- Health and wellness benefits via Safetywing.
- Access to an AI toolkit, including Claude, Cursor, Codex, and other productivity tools.
- Annual educational budget of up to $1,000.
Apply now to be part of a team that is redefining language learning for millions of users worldwide. At Praktika.ai we are on a mission to deliver efficient and engaging learning experiences for billions of people worldwide by bridging the gap between learning apps and human tutors. We have done this by creating a fully automated language tutorship experience powered by generative AI Avatars.
Senior Full-Stack Engineer employer: Praktika.ai
At Praktika, we pride ourselves on being an innovative employer that champions creativity and collaboration in the fast-paced world of AI-driven education. Our vibrant work culture fosters personal and professional growth, offering extensive benefits such as equity options, generous holiday allowances, and a commitment to employee wellness through health benefits and an annual educational budget. Join us in our mission to revolutionise language learning while enjoying the unique opportunity to shape the future of education from our dynamic team environment.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Full-Stack Engineer
✨Tip Number 1
Network like a pro! Reach out to folks in your industry on LinkedIn or at meetups. We all know that sometimes it’s not just what you know, but who you know that can get you in the door.
✨Tip Number 2
Show off your skills! Create a portfolio that highlights your best projects and experiments. We want to see your coding prowess and how you’ve tackled real-world problems, especially with web applications.
✨Tip Number 3
Prepare for those interviews! Research Praktika and come armed with questions about their product vision and user experience strategies. We love candidates who are genuinely interested in our mission and can contribute to our growth.
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we’re always on the lookout for passionate individuals ready to join us in revolutionising language learning.
We think you need these skills to ace Senior Full-Stack Engineer
Some tips for your application 🫡
Show Your Passion:When you're writing your application, let your enthusiasm for language learning and AI shine through. We want to see that you’re genuinely excited about the role and how you can contribute to our mission at Praktika.
Tailor Your CV:Make sure your CV is tailored to highlight your experience with full-stack development, especially with Typescript, React, and Node.js. We love seeing relevant projects that demonstrate your skills and how they align with what we’re looking for.
Craft a Compelling Cover Letter:Your cover letter is your chance to tell us why you’re the perfect fit for the Senior Full-Stack Engineer role. Share specific examples of your past work, especially any A/B testing or conversion optimisation experiences that relate to our goals.
Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it shows you’re serious about joining our team!
How to prepare for a job interview at Praktika.ai
✨Know Your Tech Stack
Make sure you’re well-versed in the technologies mentioned in the job description, especially Typescript, React, and Node.js. Brush up on your knowledge of modern full-stack tooling like Next.js and Tailwind, as you might be asked to discuss how you've used these in past projects.
✨Showcase Your Product Mindset
During the interview, emphasise your product mindset. Be ready to discuss how you approach user problems and business outcomes, not just the technical aspects. Prepare examples of how you've contributed to product vision and driven user experience improvements in previous roles.
✨Prepare for A/B Testing Questions
Since this role involves running experiments and analysing results, be prepared to talk about your experience with A/B testing and funnel optimisation. Have specific examples ready that demonstrate how your data-driven decisions led to successful outcomes.
✨Demonstrate Your UI/UX Sensibility
Given the emphasis on UI/UX in the role, be ready to discuss your approach to creating engaging user experiences. Bring along a portfolio showcasing your best web projects, particularly those that highlight your attention to detail in animations and micro-interactions.
