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Who we are:

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. The industry is going through an unprecedented transformation, and we’re at the forefront. We’re proud to come to work every day knowing that what we do has a direct impact on people’s lives, with our core values guiding us every step of the way. Join us to invest in yourself, your career, and the financial world.

The Role:

We are looking for an experienced Senior Staff Software Engineer to join our Builder Tools engineering organization with a mission to enable So Fi engineers to elegantly solve problems. In this role, you will have the opportunity to 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 get the chance to lead, define, and take on complex and interesting problems as part of a fast-paced, highly collaborative organization. The ideal candidate will be a mentor, technical leader and a team player who is hands-on and comfortable driving solutions from initial architecture to implementation and adoption with a strong sense of ownership and drive for 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 in the team, provide mentorship, and domain expertise to enhance the overall technical capabilities of the team..

• Continuous Improvement - Contribute to creating a culture of continuous learning, data-driven decisions and improvements. Proactivelyidentify 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 environment, 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 working with Agile development processes.

• Strong Interpersonal skills - Excellent written and verbal communication skills. Demonstrated ability to collaborate well with technical and non-technical members, and proven skills to operate effectively in a cross-functional team.

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 listed below. Final base pay offer will be determined based on individual factors such as the candidate’s experience, skills, and location.

To view all of our comprehensive and competitive benefits, visit our Benefits at So Fi page!
So Fi provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion (including religious dress and grooming practices), sex (including pregnancy, childbirth and related medical conditions, breastfeeding, and conditions related to breastfeeding), gender, gender identity, gender expression, national origin, ancestry, age (40 or over), physical or medical disability, medical condition, marital status, registered domestic partner status, sexual orientation, genetic information, military and/or veteran status, or any other basis prohibited by applicable state or federal law.
The Company hires the best qualified candidate for the job, without regard to protected characteristics.
Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.
New York applicants: Notice of Employee Rights
So Fi is committed to an inclusive culture. As part of this commitment, So Fi offers reasonable accommodations to candidates with physical or mental disabilities. If you need accommodations to participate in the job application or interview process, please let your recruiter know or email accommodations@sofi.com.
Due to insurance coverage issues, we are unable to accommodate remote work from Hawaii or Alaska at this time.

Internal Employees

If you are a current employee, do not apply here - please navigate to our Internal Job Board in Greenhouse to apply to our open roles.