Senior Software Engineer, Agentic Test Platform

The Role

Senior Staff Software Engineer, Agentic Test Platform

Engineering WA - Seattle
CA - San Francisco

Shape a brighter financial future with us. Together with our members, we’re changing the way people think about and interact with personal finance. We’re a next-generation financial services company and national bank using innovative, mobile-first technology to help our millions of members reach their goals. We’re a fast-paced, highly collaborative organization with a strong emphasis on ownership and delivery.

Join us to invest in yourself, your career, and the financial world.

We are looking for an experienced Senior Staff Software Engineer to join our Builder Tools engineering organization with a mission to enable SoFi engineers to elegantly solve problems. You will directly impact, influence and lead the direction and architecture of our AI-powered software testing experience, and elevate product reliability through testing infrastructure innovations and practices. You will lead, define, and tackle complex problems from architecture to implementation and adoption with a strong sense of ownership and delivery.

What You’ll Do:

• Technical leadership - Provide thought leadership for the technical strategy, design, implementation, delivery and operations for AI-powered agentic testing (autonomous test generation, execution, failure remediation) and foundational test infrastructure (environment, data generation, multi-tenancy).
• Innovate - Collaborate with cross-functional teams to drive innovation in testing enablement infrastructure, experience and tooling.
• Exemplary Practitioner - Be a subject matter expert in the testing domain, including outcome KPIs and metrics, and operational excellence.
• Mentor - Collaborate with engineers to provide mentorship and domain expertise to enhance the team’s technical capabilities.
• Continuous Improvement - Contribute to a culture of continuous learning, data-driven decisions and improvements. Proactively identify and manage risks.
• Collaborate – Build strong working relationships with coworkers and cross-organizational teams.
• Influence - Influence and scale the adoption of platforms, tools and best practices across the engineering organization.

What You’ll Need:

• Experience - Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related technical field.
• 8+ years software development experience.
• Experience developing in a cloud environment (e.g., AWS), using containers (e.g., Docker, Kubernetes), cloud-native technologies, service meshes (e.g., Istio, Envoy), CI/CD pipelines and automated testing.
• Expertise - Deep knowledge of testing practices for micro-services (e.g., multi-tenancy, ephemeral test environments, test user and data generation techniques). Deep awareness of testing tools (e.g., Locust, Artillery), frameworks (e.g., Kotest, Mockito) and techniques (e.g., fuzz, property).
• 2+ years of experience using or developing AI tools (e.g., Claude Code, Prompts, Cursor), AI infrastructure (e.g., MCP, RAGs, Vector DBs), agent frameworks (e.g., Agent SDK, Langchain, Langfuse).
• Design - Strong understanding of software design principles and distributed systems architecture.
• Problem solving - Strong problem solving and programming fundamentals (algorithms, data structures).
• Coding Skills - Proven coding skills (e.g., Java, Kotlin, Python) delivering large-scale systems with infrastructure automation (e.g., Terraform).
• Project Ownership - Ability to own, manage and deliver projects from scoping through launch. Experience with Agile development processes.
• Strong Interpersonal skills - Excellent written and verbal communication; ability to collaborate with technical and non-technical members in cross-functional teams.

Preferred Qualifications:

• Experience with security, compliance, and risk management in cloud environments.
• Experience with monitoring and logging (e.g., Datadog, Elastic, Coralogix).
• Experience with container orchestration (e.g., Docker, Kubernetes) and networking.

Compensation and Benefits

The base pay range for this role is $ - $. Final base pay offer will be determined based on factors such as experience,…