Senior Full Stack Engineer (Payments)

Office Ally; Washington; Hybrid; USD 120,000 - 180,000; Full time

Job summary

Office Ally is seeking an experienced Senior Full Stack Developer to help build ProPay2.0, our next-generation payment platform and financial infrastructure. You will design, develop, and support scalable, secure payment solutions processing ACH, virtual card, checks, and other digital payments, contributing to architecture evolution.

The role is preferred hybrid in Concord office, with consideration for remote candidates in the Pacific or Mountain time zones based on experience.

Qualifications

• Bachelor's degree in CS or related field or equivalent experience.
• 7+ years of full-stack development experience.
• Proficiency in Java and Spring Boot.
• Experience with RESTful APIs design and consumption.
• Strong SQL skills with PostgreSQL/Oracle/SQL Server.
• Experience with React and modern front-end frameworks.
• Experience with Git and modern CI/CD pipelines.
• Experience building cloud-based applications (AWS).
• Experience with payment processing, fintech, healthcare payments, or financial services platforms.
• Excellent analytical and problem-solving skills.
• Strong communication and collaboration; Agile development.

Responsibilities

• Design, develop, and maintain scalable full-stack applications for enterprise payment processing.
• Build scalable front-end applications using React and modern UI frameworks.
• Develop secure, high-performance backend services and RESTful APIs.
• Use AI-assisted development tools to accelerate coding, refactoring, and debugging.
• Design and optimize relational database schemas and SQL queries.
• Integrate with external payment providers, banking partners, and third-party APIs.
• Ensure applications meet security, compliance, and performance requirements.
• Participate in architecture discussions and technical design reviews.
• Participate in code reviews and uphold engineering best practices.
• Identify opportunities to improve system design, performance, and developer productivity.
• Troubleshoot production issues and identify root causes.
• Write automated unit, integration, and end-to-end tests.
• Collaborate with Product, QA, DevOps, and Operations teams throughout the lifecycle.

Skills

Java

Spring Boot

REST APIs

SQL

React

Git

CI/CD

AWS

Agile

Communication

Education

Bachelor's degree in Computer Science or related field

Tools

Git

CI/CD pipelines

AWS

Job description

Job Description

Job Description

About Us

At Office Ally, we've been revolutionizing healthcare administration since our inception. What started as a clearinghouse focused on simplifying insurance claims processing for healthcare providers has grown into a full-suite healthcare technology company. We offer a range of affordable, cloud-based revenue cycle management solutions –from eligibility verification and claims management to revenue recovery and payment processing –that help healthcare organizations of all sizes streamline operations and reduce administrative burdens so they can focus on what matters most: patient care.

In April 2026, Office Ally acquired Jopari Solutions, Inc, a leader in straight-through electronic claims processing for Property & Casualty (P&C), Commercial, and Government healthcare. Jopari brings deep industry expertise and innovative enterprise payment solutions that are transforming how disbursements are handled across the insurance ecosystem. Together, we are expanding our capabilities across the full healthcare transaction lifecycle, connecting claims, payments, and data exchange to deliver a more seamless and efficient experience for providers, payers, and partners.

At the core of our company are four key values that guide our mission and work:

• Ownership: We take pride in our responsibilities, driving results and taking accountability for the success of our projects.
• Empowerment: We believe in giving our team the autonomy and support to make decisions that lead to innovative solutions.
• Innovation: We continuously seek new and better ways to improve healthcare administration, embracing creativity and forward-thinking technology.
• Transparent Communication: Open, honest communication is at the heart of our collaborations, internally and with our clients, ensuring alignment and trust.

About the Role

We are seeking an experienced Senior Full Stack Developer to help build ProPay2.0, our next-generation payment platform and financial infrastructure. In this role, you will design, develop, and support highly scalable, secure payment solutions that process ACH, virtual card, check, and other digital payment transactions while contributing to the architecture and evolution of our payment platform.

Preferred work location is hybrid in our Concord office. Remote candidates residing in the Pacific or Mountain time zones will also be considered based on experience and qualifications.

What You'll Do

• Design, develop, and maintain scalable full-stack applications for enterprise payment processing
• Build scalable front-end applications using React and modern UI frameworks
• Develop secure, high-performance backend services and RESTful APIs
• Use AI-assisted development tools (Claude Code, Copilot, etc.) to accelerate coding, refactoring, and debugging
• Design and optimize relational database schemas and SQL queries
• Integrate with external payment providers, banking partners, and third-party APIs
• Ensure applications meet security, compliance, and performance requirements
• Participate in architecture discussions and technical design reviews
• Participate in code reviews and uphold engineering best practices across the team
• Identify opportunities to improve system design, performance, and developer productivity
• Troubleshoot production issues and identify root causes
• Write automated unit, integration, and end-to-end tests
• Collaborate closely with Product, QA, DevOps, and Operations teams throughout the software development lifecycle

What You'll Need

• Bachelor's degree in Computer Science or related field, or equivalent experience
• 7+ years of full-stack development experience
• Strong experience with Java and Spring Boot
• Strong Experience designing and consuming RESTful APIs
• Strong knowledge of SQL and relational databases such as PostgreSQL, Oracle, or SQL Server
• Experience with React and modern front-end frameworks
• Experience with Git and modern CI/CD pipelines
• Experience building cloud-based applications (AWS preferred)
• Experience working on payment processing, fintech, banking, healthcare payments, or financial services platforms
• Experience with ACH, EFT, virtual cards, checks, or digital payment processing
• Excellent analytical and problem-solving skills
• Strong communication and collaboration skills
• Strong understanding of Agile development methodologies

Nice to Have

• Familiarity with payment standards and financial transaction workfl