Senior Software Engineer - Platform

Who We Are 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 $22.7 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. The Opportunity The Engineering Ecosystem Org exists to help engineers deliver member value with high speed and high quality. As a Senior Software Engineer, you will design, build, and operate scalable platform services and shared libraries that improve developer productivity, system reliability, and delivery velocity. In your first year, success means delivering complex platform capabilities end-to-end, contributing to architecture decisions, and raising engineering quality through strong technical practices and mentorship. At Oportun, we move fast and we hold each other to a high bar. If you care about doing your best work while actually moving the needle for real people, you'll fit right in. What You'll Do Your day-to-day You'll design, build, test, deploy, and maintain scalable, reliable platform services and shared libraries.You'll contribute to platform and system architecture decisions with a focus on reliability, scalability, and developer experience.You'll write high-quality, maintainable code and model strong engineering best practices.You'll collaborate with Staff Engineers and peers to implement standards and patterns that support Continuous Delivery.You'll identify and address performance, scalability, and reliability issues across platform services.You'll participate actively in design reviews, code reviews, and technical discussions, providing thoughtful and constructive feedback.You'll drive operational excellence by improving monitoring, alerting, and incident response practices.You'll investigate root causes of production issues and implement long-term fixes to reduce on-call burden.You'll mentor and support junior and mid-level engineers through code reviews, pairing, and technical guidance.You'll partner with cross-functional teams to understand requirements and deliver solutions that create measurable business and customer value.You'll bring ideas for how we can do things better - proactively, not just when asked.You'll look for ways to use AI tools thoughtfully - to work smarter, reduce manual work, and make better decisions faster. Who You Are The right fit looks like this You're a hands-on engineer who enjoys solving complex technical problems, navigating ambiguity, and improving systems that other engineers depend on. You take ownership from design through production, communicate clearly, and help raise the technical bar through mentorship and constructive feedback. You're comfortable navigating complexity and don't wait for perfect information to move forward. You communicate clearly, give direct feedback, and expect the same in return. What You Bring Required Skills & experience You'll have 7-8 years of related software engineering experience with a bachelor's degree, or a master's degree with an equivalent combination of education and experience.You've demonstrated strong experience in software development focused on backend systems and services.You bring proficiency in Java, C#, C++, or similar backend languages, with strong knowledge of software design principles, data structures, and algorithms.You have experience building and operating scalable, reliable, and secure systems, including 3+ years designing, building, deploying, and maintaining container-based applications.You bring 4+ years of experience working with cloud platforms such as AWS, GCP, or Azure.You have experience with Continuous Delivery practices and automated deployment pipelines.You have strong problem-solving and debugging skills, effective communication and collaboration skills, and experience mentoring junior engineers and contributing to team-level technical leadership.You bring working knowledge of secure development practices and security considerations in distributed systems. Nice to Have Experience in financial services or the fintech industry.Familiarity with shared platforms, distributed systems, developer productivity, or engineering ecosystem practices.You've used AI tools such as ChatGPT, Copilot, or similar to improve your own productivity. Our AI Mindset We build with AI. We lead with judgment. AI Isn't a Feature Here. It's How We Work. We're excited about what AI makes possible, and we're looking for people who share that curiosity. You don't need to be an expert. You need to be open to experimenting, willing to learn, and able to apply new tools in ways that actually move the needle. In this role, you'll be encouraged to explore AI tools, find practical use cases for your function, and bring ideas for working smarter. We believe the best outcomes come when human judgment and AI capability work together. Why Oportun What's In It For You Oportun offers a competitive compensation and benefits package designed to support your physical, financial, and professional well-being. Benefits vary by country of employment. US Benefits Some of the benefits available to eligible employees include: 401(k) Company Match; Medical, Dental & Vision Insurance; Life & Disability Insurance; Flexible PTO. Eligibility and plan details vary by location and employment status. To learn more about Oportun and our benefits, visit oportun.com/careers We are proud to be an Equal Opportunity Employer and consider all qualified applicants for employment opportunities without regard to race, age, color, religion, gender, national origin, disability, sexual orientation, veteran status or any other category protected by the laws or regulations in the locations where we operate. California applicants can find a copy of Oportun's CCPA Notice here: https://oportun.com/privacy/california-privacy-notice/. We will never request personal identifiable information (bank, credit card, etc.) before you are hired. We do not charge you for pre-employment fees such as background checks, training, or equipment. If you think you have been a victim of fraud by someone posing as us, please report your experience to the FBI’s Internet Crime Complaint Center (IC3).