Design and build scalable infrastructure for the OneBank product, focusing on reliability and performance.
About this role
This senior software engineer is the technical core of a new B2B initiative applying AI to operational problems in financial services. At the 0-to-1 stage, the work spans customer discovery, technical validation and shaping a product for use in business operations. Responsibilities include interviewing customers and observing frontline work to structure operational problems and data flows; planning, designing, building, evaluating and operating LLM-based AI agents and business systems; and leading technical work from proposals and proof-of-concept through production deployment and adoption. The engineer also designs architecture around enterprise security and governance requirements. The stated environment includes Ruby, Python, AWS, Terraform, MySQL, PostgreSQL and GitHub Actions. Applicants need approximately five or more years of experience taking a web application or business system from design through production operation, as well as experience developing and operating a production product incorporating LLM, RAG and AI agents. They must have advanced through unsettled specifications or unfamiliar domains by forming hypotheses and learning, and have structured complex operational problems through customer or frontline dialogue as problems to solve with software or AI.
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