JS Software Engineer (React, Next.js)

Join Sigli’s international team! Where we strive to make everyone feel welcome and valued. You’ll work on different projects across Europe and the UK while growing your career in a culture built on trust, care, and equality.

This remote position is open for candidates based within Sigli’s hiring regions: Europe, Balkans, Central Asia, Caucasus.

About the project:

Our client is a leading provider of ecommerce solutions for software and hardware resellers. Their ecommerce platform is the sales channel, offering a robust ecosystem of in-house and third-party services that support complex reseller transactions at scale.

To ensure long-term scalability, performance, and independence from third-party limitations, the client is undertaking a full rebuild of their ecommerce platform. This involves migrating from a legacy CMS/CRM system to a modern, fully custom solution built with React, Next.js and Node.js. The new platform will provide complete control over development, eliminate vendor lock-in, and support the evolving needs of their reseller network.

What you will do:

• Develop, and maintain high-quality web applications using TypeScript, React, Next.js;
• Take ownership of tasks end-to-end, proactively investigating requirements and technical solutions with minimal need for repeated clarifications;
• Deliver highly polished UI and implementation details with a strong focus on accuracy, consistency, and pixel-perfect execution where applicable;
• Collaborate with cross-functional teams to deliver seamless user experiences;
• Optimize applications for maximum speed, scalability, and performance.

What you bring:

• 4+ years of hands-on experience building web applications using React;
• Strong grasp of JavaScript (ES6+) and TypeScript;
• Solid understanding of Next.js for server-side rendering, static site generation, and API routes;
• Experience with TailwindCSS for building responsive UI components with utility-first styling;
• Proficient in React Query for efficient data fetching, caching, and synchronization with server state;
• Experience working with GraphQL for building efficient APIs and integrating complex data structures in frontend applications;

• High attention to detail and a strong sense of consistency in code and UI;

• Self-sufficient, proactive mindset: able to figure things out independently and manage time efficiently;

• Upper-Intermediate English proficiency;
• Experience with Zod is nice to have.

What Sigli gives:

• Culture you can count on:

Our core values ownership, transparency, and service aren’t just paper promises, they are our daily navigators. This means open communication, no bureaucracy and no micromanagement – we trust our people.

• True remote flexibility:

Work from wherever you feel most productive and organize your day around your tasks, meetings and stay responsive during our core collaboration hours (12 PM-4 PM Lithuanian time).

• Structured growth and connection:

Mentorship Program: you get a dedicated colleague from day one to help you adapt, build connections, and grow, bridging the distance.

Engaging Internal Life: we ensure connection and growth through internal activities, knowledge exchange, online challenges, our Sigli Soft Skills School, and local team gatherings.

Sounds like a match? We can’t wait to see your application!