Senior Software Engineer (Golang/TypeScript/React)

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Engineer (Golang/TypeScript/React) based in Switzerland. As a Senior Software Engineer, you will help build and evolve a data-intensive platform used by major organisations to make informed business decisions. You will own features end-to-end, from initial concept and architecture through development, testing, and production. The role combines backend engineering in Go with modern frontend development using React and TypeScript. You will contribute to highly scalable systems that collect, process, validate, and serve large volumes of financial data. Beyond feature delivery, you will influence technical strategy, engineering standards, observability, and development practices. You will work within a collaborative, multidisciplinary team where technical ownership, continuous learning, and meaningful impact are highly valued. Accountabilities: - Design, develop, test, maintain, and enhance Golang microservices and React/TypeScript frontend applications. - Take full ownership of features from ideation and technical design through implementation, deployment, and ongoing improvement. - Build performant, accessible, and polished customer-facing interfaces using React, TypeScript, and established design systems. - Develop reliable backend services and web application backends using Go and deploy applications through Docker-based environments. - Make architectural and technical decisions while balancing existing systems, new technologies, scalability, performance, and maintainability. - Improve application and service performance, reliability, monitoring, and observability. - Establish and maintain high engineering standards through clean-code practices, code reviews, documentation, and consistent development patterns. - Collaborate with product managers, engineers, and stakeholders across the organisation to understand business requirements and deliver effective technical solutions.

- Contribute to automation, process improvements, and new technologies that improve the efficiency and quality of engineering teams and business operations. - Work with large-scale financial datasets and contribute to systems that collect, process, validate, and serve data to users. - Troubleshoot technical issues and contribute to the continuous reliability and improvement of production systems. - Share technical knowledge, communicate complex concepts clearly to technical and non-technical stakeholders, and contribute to a culture of continuous learning. - Support and contribute to CI/CD, infrastructure, and observability initiatives where appropriate. Requirements: - Strong professional experience designing, developing, testing, and operating production-grade software systems. - Advanced proficiency in Golang, including experience building backend services and working with concurrent or distributed systems. - Strong frontend development experience with React and TypeScript, including the ability to build reusable, component-based applications. - Strong SQL skills and experience working with relational databases such as MariaDB or comparable technologies. - Solid understanding of clean-code principles, software design practices, and idiomatic Go and TypeScript development. - Experience with Docker and containerised application deployment. - Ability to design and maintain performant, scalable, and reliable software systems. - Strong problem-solving skills and the ability to understand and work effectively within complex technical and business domains. - Excellent communication skills, with the ability to explain complex technical subjects to both technical and non-technical audiences. - Ability to take ownership of features and deliver solutions from concept through production.