Senior Software Engineer (R14016)

About Oportun

Oportun (Nasdaq: OPRT) is a mission-driven financial services company that puts its members' financial goals within reach. With intelligent borrowing, savings, and budgeting capabilities, Oportun empowers members with the confidence to build a better financial future. Since inception, Oportun has provided more than $21.3 billion in responsible and affordable credit, saved its members more than $2.5 billion in interest and fees, and helped its members set aside an average of more than $1,800 annually.

Working at Oportun

Working at Oportun means enjoying a differentiated experience of being part of a team that fosters a diverse, equitable and inclusive culture where we all feel a sense of belonging and are encouraged to share our perspectives. This inclusive culture is directly connected to our organization's performance and ability to fulfill our mission of delivering affordable credit to those left out of the financial mainstream. We celebrate and nurture our inclusive culture through our employee resource groups.

Position Overview

The mission for the Engineering Ecosystem Org at Oportun is to be the force-multiplicative organization that empowers engineers to deliver member value with high speed and high quality. Teams in this Org play a vital role in designing, developing, and maintaining cutting-edge software solutions that power our mission and advance our business. We strike a balance between leveraging leading tools and developing in-house solutions to create member experiences that empower their financial independence.

As a Senior Software Engineer at Oportun, you will be a key technical contributor responsible for designing, building, and maintaining scalable, reliable platform services and shared libraries. You will work closely with Staff Engineers, product teams, and other senior engineers to evolve the engineering platform and improve developer productivity, system reliability, and delivery velocity.

The Role

We are looking for a Senior Software Engineer to help design, build, and maintain our platform and associated services. This role will have a meaningful impact on Oportun’s evolving platform and engineering ecosystem. You will contribute to architectural decisions, lead complex features end-to-end, and help raise the technical bar across your immediate teams.

The ideal candidate is a strong hands-on engineer with experience building and operating distributed systems, who enjoys solving complex technical problems and mentoring other engineers while remaining deeply involved in day-to-day development.

Responsibilities

• Design, build, test, deploy, and maintain scalable, reliable platform services and shared libraries.
• Contribute to platform and system architecture decisions with a focus on reliability, scalability, and developer experience.
• Write high-quality, maintainable code and set a strong example of engineering best practices.
• Collaborate with Staff Engineers and peers to implement standards and patterns that support Continuous Delivery.
• Identify and address performance, scalability, and reliability issues across platform services.
• Participate actively in design reviews, code reviews, and technical discussions, providing thoughtful and constructive feedback.
• Drive operational excellence by improving monitoring, alerting, and incident response practices.
• Investigate root causes of production issues and implement long-term fixes to reduce on-call burden.
• Mentor and support junior and mid-level engineers through code reviews, pairing, and technical guidance.
• Partner with cross-functional teams to understand requirements and deliver solutions that create measurable business and customer value.

Requirements

• Requires a minimum of 7–8 years of related experience with a bachelor’s degree; or a master’s degree with an equivalent combination of education and experience.
• Strong experience in software development with a focus on backend systems and services.
• Proficiency in Java, C#, C++, or similar backend languages.
• Strong understanding of software design principles, data structures, and algorithms.
• Experience building and operating scalable, reliable, and secure systems.
• Experience (3+ years) designing, building, deploying, and maintaining container-based applications.
• Experience (4+ years) working with cloud platforms such as AWS, GCP, or Azure.
• Strong problem-solving skills and ability to debug complex technical issues.
• Experience with Continuous Delivery practices and automated deployment pipelines.
• Effective communication and collaboration skills, with the ability to work well within cross-functional teams.
• Experience mentoring junior engineers and contributing to team-level technical leadership.
• Working knowledge of secure development practices and security considerations in distributed systems.

Preferred Skills

• Financial services or fintech industry experience is a strong advantage.

Key Skills/Competency

• Software Engineering
• Platform Services
• Distributed Systems
• Cloud Platforms (AWS, GCP, Azure)
• Containerization
• Backend Development
• Java
• C#
• C++
• Problem Solving