At a Glance
- Tasks: Own and evolve web assets, drive product decisions, and build 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.
Lead/ 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 location.
StudySmarter Expert Advice🤫
We think this is how you could land Lead/ Senior Full-Stack Engineer
✨Tip Number 1
Network like a pro! Reach out to folks in the industry, attend meetups, and connect with people on LinkedIn. You never know who might have the inside scoop on job openings or can put in a good word for you.
✨Tip Number 2
Show off your skills! Create a portfolio that highlights your best projects, especially those that demonstrate your full-stack capabilities. Make sure it’s easy to navigate and visually appealing – first impressions matter!
✨Tip Number 3
Prepare for interviews by practising common questions and coding challenges. Use platforms like LeetCode or HackerRank to sharpen your skills. Remember, it’s not just about coding; be ready to discuss your thought process and how you tackle problems.
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets seen. Plus, we love seeing candidates who are genuinely interested in joining our mission at Praktika. Don’t hesitate – hit that apply button!
We think you need these skills to ace Lead/ Senior Full-Stack Engineer
Some tips for your application 🫡
Show Your Passion:When writing your application, let your enthusiasm for language learning and AI shine through. We want to see how excited you are about the role and how you can contribute to our mission at Praktika.
Tailor Your CV:Make sure your CV highlights relevant experience with full-stack development, especially with Typescript, React, and Node.js. We love seeing how your skills align with what we’re looking for, so don’t hold back!
Craft a Compelling Cover Letter:Use your cover letter to tell us why you’re the perfect fit for the Senior Full-Stack Engineer role. Share specific examples of past projects and how they relate to the work we do at Praktika.
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 keen on joining our team!
How to prepare for a job interview at Praktika.ai
✨Know Your Tech Stack
Make sure you’re well-versed in Typescript, React, and Node.js. Be ready to discuss your experience with these technologies and how you've used them in past projects. Practika is looking for someone who can hit the ground running, so showcasing your technical skills will definitely give you an edge.
✨Showcase Your Product Mindset
During the interview, emphasise your ability to think beyond just coding. Talk about how you've approached user problems and business outcomes in previous roles. Practika values a product mindset, so share examples of how you've contributed to product vision and user experience.
✨Prepare for A/B Testing Discussions
Since you'll be driving product decisions and running experiments, be prepared to discuss your experience with A/B testing and funnel optimisation. Bring specific examples of tests you've run, what you learned, and how it impacted user engagement or conversion rates.
✨Demonstrate Your UI/UX Sensibility
Practika cares about the details that make a difference in user experience. Be ready to talk about your approach to UI/UX design, including any projects where you focused on animations, micro-interactions, or conversion details. If you have a portfolio, make sure to highlight relevant projects that showcase your skills.
