Senior Full Stack Engineer - React + Node.js at capital

<div>We are a leading trading platform ambitiously expanding to the four corners of the globe. Our top-rated products have won prestigious industry awards for their cutting-edge technology and seamless client experience. We deliver only the best, so we are always in search of the best people to join our ever-growing talented team.<br>We are looking for a Senior Full Stack Engineer to join our Engineering Excellence team within the Product &amp; Engineering department. In this role, you will take end-to-end ownership of building and evolving a key internal operational platform — a productivity and visibility tool designed to empower managers with the insights and capabilities they need to lead their teams effectively.<br>You will work closely with engineering, product, and management stakeholders across the organisation to understand their needs and translate them into well-architected, scalable solutions. Your contributions will have a direct and measurable impact on how our teams operate and grow.</div> Responsibilities: • Design, build, and maintain a full-stack internal platform serving operational and management use cases across the organisation; • Take end-to-end ownership of features — from architecture and API design through to frontend implementation and deployment; • Build clean, performant, and maintainable user interfaces using React / Next.js and TypeScript; • Develop robust backend services and RESTful APIs using Node.js and NestJS; • Collaborate closely with engineering managers and product stakeholders to gather requirements and define solutions; • Contribute to technical decisions, code reviews, and engineering best practices within the team; • Ensure reliability, scalability, and security of the platform as adoption grows across the company. Requirements: • 5+ years of professional software engineering experience, with strong full-stack expertise; • Solid proficiency in TypeScript and modern JavaScript ecosystems; • Strong experience with Next.js for building production-grade frontends; • Hands-on experience with Node.js and NestJS (or similar backend frameworks); • A solid understanding of RESTful API design and backend architecture principles; • Hands-on experience with relational databases (e.g. PostgreSQL or MySQL) and solid understanding of data modelling and query optimisation; • Comfortable working in an agile environment with a high degree of ownership and autonomy; • Strong communication skills — able to collaborate effectively with both technical and non-technical stakeholders. Nice to have: • Hands-on experience working with data — including data pipelines, aggregations, or analytics integrations; • Experience building internal tooling, dashboards, or management platforms; • Familiarity with CI/CD pipelines and DevOps practices; • Experience with cloud infrastructure (AWS or GCP); • Prior experience in a fintech or high-growth technology company. What you will get in return: • Competitive compensation; • A generous paid leave policy, supporting a healthy work–life balance; • Two additional paid days per year dedicated to volunteering and giving back; • Private medical insurance for your peace of mind; • An additional flexible benefits budget, allowing you to tailor benefits to your needs; • Flexible working mode; • The opportunity to work from almost anywhere in the world for up to 30 days per year; • Annual company-wide events held in locations around the globe; • In-office massages to support wellbeing. Be a key player at the forefront of the digital assets movement, propelling your career to new heights! Join a dynamic and rapidly expanding company that values and rewards talent, initiative, and creativity. Work alongside one of the most brilliant teams in the industry.