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Fintech Senior Software Engineer Jobs in Oregon (NOW HIRING)

Senior Software Engineer

Portland, OR · On-site

$103K - $116K/yr

As a Senior Software Engineer at Resource Data, you will join a team of consultants leading complex technical work and resolving ambiguous business challenges. The Senior Software Engineer drives the ...

Senior Software Engineer

Portland, OR · On-site

$103K - $116K/yr

As a Senior Software Engineer at Resource Data, you will join a team of consultants leading complex technical work and resolving ambiguous business challenges. The Senior Software Engineer drives the ...

OR

$122K - $161K/yr

Senior Software Engineer, Guarded Containers The role, in a nutshell: We're looking for a Senior Software Engineer to join our Guarded Containers team and help shape the future of Chainguard Images ...

Sr. Software Engineer - Accounting

$122K - $161K/yr

About this job We're looking for a Senior Software Engineer to join a 6-person cross-functional product development team focused on continuing to enhance the accounting module of our Appfolio ...

Senior Software Engineer

OR · On-site +1

$122K - $161K/yr

As a Senior Software Engineer, you will design and build internal applications that power critical bank functions. You'll work across software systems, automation, integrations, and platform tooling ...

Senior Software Engineer

Beaverton, OR · On-site

$127K - $168K/yr

Senior Software Engineer - NIKE, Inc. - Beaverton, OR. Develop, code, configure and test software systems and solutions to meet defined digital product specifications and direction; design and build ...

Senior Software Engineer

Beaverton, OR · On-site

$127K - $168K/yr

FULL STACK SENIOR SOFTWARE ENGINEER Nike / Global Technology / Consumer Product & Innovation / Product Innovation Engineering WHO YOU WILL WORK WITH: Our team supports Nike Product Innovation teams ...

Senior Software Engineer, Unsecured Installments

OR · On-site +1

$122K - $161K/yr

As a Senior Software Engineer on the Unsecured Installments team, you'll be a technical leader for ... Background in fintech, lending, payments, or other regulated financial products with complex user ...

OR · On-site

$133K - $166K/yr

Senior Software Engineer, SIM Key Auth & Trust Team Department: Technology Reports To: Senior Manager, Engineering FLSA Status: Exempt Location: US Remote Job Summary: The SIM Key Auth & Trust Team ...

Senior Software Engineer

OR · Remote

$122K - $161K/yr

Five9 is seeking a Senior Software Engineer to rapidly modernize our internal platform tooling and drive full-stack engineering maturity. This is primarily a hands-on developer role - you will own ...

We are seeking a Sr. Software Engineer to join our Evaluation Services team. Our Evaluation ... Experience with trading platforms, fintech, or capital markets technology * Familiarity with React ...

Sr. Software Engineer - FOS

OR · On-site +1

$140K - $175K/yr

ABOUT THE ROLE Facility Optimization Solutions (FOS), a subsidiary of CannonDesign, is seeking an experienced and highly skilled Senior Software Engineer to join our FOS products team. Reporting to ...

$122K - $161K/yr

HealthEdge is seeking a Senior Software Engineer (Java) with a strong technical background, a passion for solving complex business problems, and a focus on delivering enterprise-grade solutions. As a ...

Senior Software Engineer - Government Cloud

OR · Remote

$122K - $161K/yr

Senior Software Engineer - Government Cloud We're hiring a software engineer to join the team responsible for bringing Tines to federal customers in AWS GovCloud. You'll build and improve the product ...

OR · On-site

$110K - $137K/yr

We seek a Sr. Software Engineer who will be active in developing features and capabilities within our Identity Management product suite. We require a passionate developer who flourishes in a fast ...

Require an experienced Senior Software Engineer (C#) to support a Metrology Equipment Software Project. This project involves developing and enhancing advanced software solutions for motion control ...

The Senior Software Engineer II is a senior technical engineer responsible for designing, developing, and delivering the Early Intervention Coordination of Benefits (EI-COB) solution on a high-volume ...

Showing results 21-40

Fintech Senior Software Engineer information

What are the key skills and qualifications needed to thrive as a Fintech Senior Software Engineer, and why are they important?

To thrive as a Fintech Senior Software Engineer, you need advanced programming skills (such as Java, Python, or C++), a deep understanding of financial systems, and a degree in computer science or related field. Proficiency with cloud platforms (like AWS or Azure), knowledge of financial APIs, and familiarity with security protocols and regulatory compliance tools are typically required. Strong problem-solving abilities, effective communication, and leadership skills help you collaborate with cross-functional teams and manage complex projects. These competencies are crucial for building secure, scalable, and innovative financial technology solutions in a highly regulated and rapidly evolving industry.

What is the difference between Fintech Senior Software Engineer vs Fintech Software Developer?

AspectFintech Senior Software EngineerFintech Software Developer
Required CredentialsBachelor's/Master's in CS or related, 5+ years experienceBachelor's in CS or related, 1-3 years experience
Work EnvironmentDesigning complex systems, leading projectsImplementing features, coding, testing
Employer & Industry UsageFinancial tech firms, banks, startupsFintech companies, startups, financial institutions

The main difference between a Fintech Senior Software Engineer and a Fintech Software Developer lies in experience, responsibilities, and scope. Senior engineers typically lead projects, design system architecture, and mentor junior staff, while developers focus on coding and implementing features. Both roles require strong technical skills, but senior roles demand more experience and leadership capabilities.

What does a Fintech Senior Software Engineer do?

A Fintech Senior Software Engineer is responsible for designing, developing, and maintaining complex software solutions tailored for the financial technology sector. This role involves working with technologies such as blockchain, payment processing systems, and security protocols to build scalable and secure financial applications. Senior engineers also mentor junior developers, collaborate with cross-functional teams, and ensure compliance with industry regulations. Their work is crucial in enabling innovative digital financial products and services.

How does a Fintech Senior Software Engineer typically collaborate with cross-functional teams to deliver secure financial solutions?

As a Fintech Senior Software Engineer, you will regularly work with product managers, UX/UI designers, compliance specialists, and QA engineers to design, develop, and deploy secure financial applications. Collaboration often involves participating in agile ceremonies, reviewing technical requirements, and ensuring all solutions meet regulatory and security standards. Effective communication and teamwork are crucial, as you’ll need to balance innovation with strict compliance, and often mentor junior engineers in best practices. This cross-functional approach ensures that the final product is robust, user-friendly, and aligned with business objectives.
What job categories do people searching Fintech Senior Software Engineer jobs in Oregon look for? The top searched job categories for Fintech Senior Software Engineer jobs in Oregon are:
What cities in Oregon are hiring for Fintech Senior Software Engineer jobs? Cities in Oregon with the most Fintech Senior Software Engineer job openings:
Infographic showing various Fintech Senior Software Engineer job openings in Oregon as of August 2026, with employment types broken down into 88% Full Time, 8% Part Time, and 4% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution.

Senior Software Engineer - Mercury Command

Mercury

Portland, OR • On-site

$129K - $171K/yr

Full-time

Re-posted 13 days ago


Job description

Job Summary:
Mercury is a fintech company that is building technology to enhance financial interfaces for the long term. The Senior Software Engineer will be responsible for designing and shipping new capabilities for Command, maintaining the LLM layer, and ensuring the reliability and quality of the product.
Responsibilities:
• Design and ship new Command skills, the domain-specific instruction sets that teach the model how to handle workflows like sending money, managing invoices, and understanding cash flow
• Design and build agentic workflows in Command, defining the architecture for how multi-step agent interactions should work as we extend what the product can do on a customer's behalf
• Work with backend teams to define tool schemas for new capabilities, shaping the data contracts between Mercury's business logic and the model
• Own new capabilities end to end, from the system prompt to the frontend component that renders the response
• Maintain and evolve Command's prompt architecture: the system prompt, skill loading system, session context, and the policy and compliance layers underneath
• Tune model behavior: reasoning effort, prompt caching strategy, fallback chains, and the streaming patterns that make the product feel fast
• Stay current with how models are evolving and bring that knowledge back to how Command is built
• Write and expand Command's eval harness, adding cases that cover new capabilities and scoring rubrics that detect regressions before users do
• Partner with product and compliance teams to define what 'working correctly' means for each new capability, then build the tests that prove it
• Own the reliability and quality of what you ship, from initial design through post-launch monitoring
Qualifications:
Required:
• Has 7 or more years of software engineering experience, with deep technical expertise building and scaling LLM-powered applications in production
• Has gone beyond shipping a first version: you have scaled an LLM-powered product, dealt with the reliability and performance problems that come with real usage, and made it better over time
• Has experience designing agentic systems and has opinions about how to architect multi-step workflows that are reliable, explainable, and safe to run on behalf of real users
• Has built eval infrastructure and can write cases that actually measure whether the product works, not just whether the model outputs something plausible
• Understands the real tradeoffs in LLM deployments: latency, cost, compliance, and what breaks in production that doesn't show up in demos
• Has opinions about what makes an AI product trustworthy, not just impressive, and can build toward that bar
• Is comfortable with TypeScript and willing to learn Haskell for backend tool work, or already comfortable with both
• Can work across the full stack of an AI product, from the system prompt to the streaming frontend
• Has a track record of mentoring engineers and raising the technical bar of their team
Company:
Mercury provides digital banking and financial tools tailored for startups and modern businesses. Founded in 2017, the company is headquartered in San Francisco, USA, with a team of 1001-5000 employees. The company is currently Late Stage.