Senior MTS Software Engineer

About the Role Join an engineering team building applications that help researchers and domain experts create, review, and analyze research data. Your work will support research workflows through user-facing tools and backend services. What You'll Do Build interfaces for writing tasks, reviewing files and video, inspecting agent actions, and comparing experimental results. Develop APIs and PostgreSQL data models for tasks, reviews, files, and experiments. Connect applications to data pipelines and file storage, with input validation, permission controls, and clear error handling. Work with researchers to improve workflows, investigate bugs, and maintain performance as datasets grow. What We're Looking For At least 3 years of experience building and maintaining applications used by others. Strong skills in TypeScript and React, or Python with a backend framework such as FastAPI, and willingness to work across the stack. Experience designing APIs and working with SQL and relational databases such as PostgreSQL. A practical approach to testing, debugging, and incorporating user feedback. Experience with annotation tools, research software, or large-dataset exploration is a plus. Familiarity with AWS, S3, background jobs, or frontend testing frameworks such as Playwright is valuable. Compensation & Benefits Competitive compensation, equity, health, dental, and vision coverage, visa sponsorship, and relocation support. Location On-site in Zürich, Switzerland.