Ling - Senior React Developer

Lead and evolve Ling App’s React Native mobile experience.
$6,000–$8,000/month - Partial overlap with Thailand (GMT+7) hours.

Hey there! I'm Simon, the CEO of Ling App. At Ling, we help people learn languages - especially those that aren't always easy to find in traditional courses. Whether it's Thai, Serbian, or even Khmer, we make learning fun and accessible through our mobile app.

We’ve grown a lot over the past few years, hitting $4.5 million in revenue last year, and we're aiming for $8 million in 2026. To get there, we're leveling up our team and looking for top talent to help us grow.

Our team is about 45 strong, with half of us in Thailand and the rest spread across the world.

We value high standards, open communication, and a friendly work environment.

If you're looking for a place where you can make a real impact, work with great people, and build something meaningful, we'd love to have you on board!

We’re looking for a Senior React Native Developer who is ready to step in to fully understand and take ownership of our tech stack and eventually grow into a leadership role on our Development team.. You’ll lead the development, maintenance, and innovation of our app at first and grow into mentoring our developers and helping them grow their skills.

In this role, you will:

🚀 Own the development and maintenance of our mobile applications (iOS & Android) using React Native

🏗️ Architect, design, and implement scalable, maintainable mobile solutions

🧩 Design, implement, and maintain backend services and APIs using Node.js

🧠 Take ownership of day-to-day technical and architectural decisions, balancing quality, delivery speed, and product impact

✅ Ensure high standards of code quality, testing, and maintainability through code reviews, unit tests, and best practices

⚡ Identify and resolve performance issues, technical debt, and architectural risks, optimizing for stability and responsiveness

🎨 Collaborate closely with Product, Design, and UI/UX to build solutions grounded in real user needs

👨‍🏫 Mentor developers, conduct code reviews, and actively raise the overall technical bar

🌟 Gradually become the go-to technical authority for the team

📚 Stay up to date with industry trends and emerging technologies to drive continuous improvement and innovation

This is a full-time role, and you’ll need to be available from 14:00–18:00 Thailand time (GMT+7) / 8:00 AM–12:00 PM CET. We also have a preference for candidates who can overlap more closely with our core working hours of 9:30 AM–6:00 PM Thailand time (GMT+7).

This role is not about managing people immediately. It’s about owning systems, decisions, and outcomes, with leadership growing naturally from there.

You will report directly to the Co-Founder & CEO, Simon Bacher, with close collaboration across Product, Design, and QA.

Over time, you’re expected to grow naturally into a Tech Lead position, based on trust, impact, and results.

Requirements

To excel in this role, you need:

✅ BS/MS degree in Computer Science, Software Engineering, or a related field (or equivalent practical experience)

✅ 5+ years of professional software development experience, with a strong focus on mobile development
✅ Clear communication skills, strong ownership mentality, and fluency in English

✅ 3+ years of hands-on production experience with React Native

✅ Strong proficiency in TypeScript, JavaScript, React, and React Native

✅ Experience building and maintaining backend services using Node.js (NestJS, Express, or similar)

✅ Deep understanding of mobile performance optimization, debugging, and troubleshooting

✅ Experience with native modules and bridging in React Native

✅ Familiarity with functional and declarative programming paradigms, including immutable data structures

✅ Experience with modern engineering practices such as code reviews, testing (unit & end-to-end), and CI/CD pipelines

✅ Experience with Firebase, Git, and third-party integrations

✅ Strong understanding of performance, scalability, and maintainability trade-offs

✅ Product-oriented mindset — you care why things are built, not just how

✅ Proven leadership experience mentoring junior developers and collaborating across teams

Brownie points for:

• Prior experience acting as a Tech Lead or technical owner
• Experience improving legacy systems or scaling production applications
• Exposure to mobile performance optimization or complex state management

The ideal candidate is easy to work with, willing to take on challenges, and not afraid to openly communicate across departments. You should be able to break down complex technical topics so others can understand them.

We’re looking for someone who is supportive, open to feedback, and committed to our mission of helping people learn languages.

If you’re entrepreneurial and like to take initiative, you’ll fit right in!

Benefits

What’s in it for you?

💰 $6,000 - $8,000 per month* (open to further negotiations)

⏳ Full-time, fully remote

🏖️ 30 days PTO

🩺 Annual health checkup reimbursement
💆 Wellness reimbursement (Gym/yoga/massage/etc.)
🏢 Coworking space reimbursement for remote employees
📚 Regular workshops for learning & training

✈️ Annual company trip

*Please note that this is a gross salary and that you are responsible for any tax-related procedures in your country of residence. We kindly ask you to apply only if you are happy to work remotely as an independent contractor.

This is our typical hiring process - occasionally, it may include extra steps.

For this role, JobRack is partnering with Ling to find their next hire. We’ll handle all the screening and testing, so they see only the best-fit candidates - like you!

🔍 How to shine

• Read the role details carefully.

• Submit a thoughtful, high-quality application.
• Stay responsive - we’ll keep you updated at every stage.

✨ Important notes
• Apply only through JobRack; please don’t contact the company directly.
• We expect a respectful hiring experience - any disrespect means instant disqualification.
• This is a full-time, primary role (no freelancing or second jobs).

❓ New to remote work?
Check out our handy FAQ: jobrack.eu/jobseeker-faq