Senior Frontend / Full-Stack Software Engineer

Finonex is a well established and stable trading platform company, developing advanced, high performance technology for users worldwide.

As a Senior Frontend leaning Full-Stack Engineer, you will be a key technical contributor to our R&D team, working on user facing platforms and helping shape frontend architecture and development standards.

You will be joining a collaborative team working on a strategic product area that is approaching its first major delivery. This is just the beginning. New capabilities, improvements, and iterations will continue to evolve, and your technical decisions will have a lasting impact on the product.

If you are passionate about building high quality user interfaces, end to end ownership, and making real product impact, this role is for you.

• Take end to end ownership of frontend features, from design to production

• Build and maintain complex, forms heavy user flows using React and Next.js

• Collaborate closely with backend engineers working with Node.js

• Read and integrate with existing C# systems as part of ongoing evolution

• Drive code quality, structure, and documentation

• Work hands on in the codebase and actively participate in technical decisions

• 6+ years of professional software development experience

• Strong experience with React and Next.js

• Solid TypeScript knowledge and clean coding practices

• Backend experience with Node.js

• Ability to read and understand C# (.NET) code

• Experience working in larger, production grade codebases

• Strong communication skills and an ownership mindset

• Comfortable working onsite and independently driving work forward

• Experience with monorepos

• Hands on experience with Playwright or other E2E testing frameworks

• Experience working on or migrating legacy systems

• Familiarity with Next.js App Router