Senior Staff Software Engineer (R14272)

About this role

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
We’re looking for a Senior Staff Software Engineer to provide technical leadership across multiple engineering teams, systems, and business domains. You’ll help shape architecture, technical strategy, and execution for complex initiatives spanning Product, Platform, Infrastructure, and customer-facing systems.
This is a highly influential individual contributor role for a deeply technical leader who operates with a high degree of autonomy and accountability. You’ll lead strategically important work from discovery through production, mentor Staff and senior engineers, and help teams make strong technical decisions across scalability, reliability, security, cost, developer productivity, and long-term maintainability.
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.
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-today

• You’ll provide senior technical leadership across multiple engineering teams, systems, and business domains.

• You’ll drive architecture, design, and implementation of scalable, reliable, secure, and maintainable software systems.

• You’ll lead complex cross-functional technical initiatives from discovery and design through delivery and production operation.

• You’ll partner with Product, Engineering, Data, Risk, Compliance, Operations, Customer Experience, and business stakeholders to connect technical decisions with business outcomes.

• You’ll design and guide implementation of backend services, APIs, integrations, platform capabilities, and distributed systems.

• You’ll evaluate existing systems and identify opportunities to improve reliability, scalability, performance, observability, maintainability, cost efficiency, and developer productivity.

• You’ll influence technical strategy, roadmap planning, architecture standards, and prioritization across teams.

• You’ll establish and promote strong engineering practices across code quality, testing, CI/CD, monitoring, documentation, security, and operational excellence.

• You’ll mentor Staff Engineers, senior engineers, and technical leads, helping raise the bar for architecture, execution, ownership, and technical judgment.

• You’ll help teams make thoughtful trade-offs across speed, quality, scalability, reliability, security, cost, and long-term maintainability.

• You’ll lead or support modernization efforts across legacy and modern systems, platforms, and integrations.

• You’ll contribute to systems supporting customer communications, telephony, contact center workflows, servicing platforms, and enterprise integrations where needed.

• You’ll participate in production support, incident reviews, root-cause analysis, and long-term reliability improvements for critical systems.

• You’ll identify practical ways to use AI-assisted engineering tools and automation to improve development workflows, operational efficiency, knowledge sharing, and team effectiveness.

Who You Are
The right fit looks like this
You’re a deeply technical engineer who thinks beyond individual systems and considers the broader organization, business context, and long-term impact of technical decisions. You’re comfortable taking on ambiguous, high-impact problems and creating clarity across multiple teams.
You influence through technical judgment, credibility, and collaboration rather than title alone. You communicate clearly, mentor other senior engineers, and take ownership for outcomes from strategy through production.
What You Bring
Skills & experience
Required

• 12+ years of professional software engineering experience.

• Deep experience designing, building, and operating large-scale distributed systems.

• Proven experience providing technical leadership across multiple teams or complex technical domains.

• Strong experience with backend services, APIs, integrations, data flows, and cloud-based architectures.

• Proficiency in one or more modern programming languages such as Java, Python, Go, JavaScript/TypeScript, Kotlin, or similar.

• Strong knowledge of system design, software architecture, scalability, reliability, observability, security, and operational excellence.

• Experience with cloud platforms such as AWS, GCP, or Azure.

• Experience with relational and/or NoSQL databases.

• Experience with CI/CD, automated testing, monitoring, logging, alerting, and production operations.

• Demonstrated ability to influence technical direction and drive alignment without relying on direct authority.

• Strong communication skills with the ability to explain complex technical concepts to technical and non-technical stakeholders.

• Experience mentoring senior engineers and helping teams improve technical execution.

• Strong ownership mindset with experience driving ambiguous, cross-functional initiatives to completion.

Nice to Have

• Experience with telephony, contact center platforms, IVR, call routing, voice systems, customer communications, or customer engagement technologies.

• Experience with platforms such as Twilio, Amazon Connect, Genesys, Five9, NICE, Cisco, Avaya, or similar technologies.

• Experience integrating third-party SaaS platforms, vendor APIs, or enterprise systems.

• Experience in fintech, financial services,…