Senior Full Stack Engineer (Core Engine)

About the Role

This is an opportunity to join a growing company transforming healthcare technology through modern electronic billing, payments, and secure data exchange solutions across the Property & Casualty and Healthcare industries.

As a Senior Full Stack Development Engineer, you will play a key role in designing, building, and maintaining scalable applications and APIs that power mission-critical healthcare and insurance workflows. This role focuses on backend architecture, service development, data processing, and system integration, ensuring high performance, reliability, and maintainability across platforms. You will work across multiple initiatives, partnering with product, engineering, and implementation teams to deliver robust backend capabilities that support complex transaction processing and customer integrations. You will also leverage modern engineering practices, including AI-assisted development tools (Claude Code, GitHub Copilot) and automated API and workflow validation (e.g., Playwright), to ensure system reliability.

This role is central to building and maintaining the backend systems that power core products and integrations, directly impacting system scalability, reliability, and performance across platforms.

This is a hybrid role based in Concord, California, with an expectation of working in the office at least two days per week.

What You'll Do

• Design, develop, and maintain backend services, APIs, and core platform components
• Build scalable systems using Java and Spring Boot or similar frameworks
• Develop and support RESTful APIs and service integrations
• Participate in system design and architecture discussions
• Collaborate with product, implementation, QA, and engineering teams
• Support complex data processing, transformation, and integration workflows
• Ensure systems are secure, reliable, and performant under high transaction volumes
• Contribute to CI/CD pipelines and DevOps practices
• Write clean, maintainable, and testable code with strong test coverage
• Improve system observability through logging, monitoring, and diagnostics
• Troubleshoot production and integration issues

What You'll Need

• Bachelor's degree in Computer Science or related field, or equivalent experience
• 8+ years of backend software engineering experience
• Strong experience in Java and backend service development
• Solid understanding of RESTful APIs and distributed systems design
• Experience with Spring Boot or similar frameworks
• Strong SQL experience (Oracle preferred) and familiarity with NoSQL databases
• Experience with cloud platforms (AWS, Azure, or GCP)
• Experience with AI-assisted development tools (Copilot, Claude, etc.)
• Experience with Docker and Kubernetes
• Familiarity with CI/CD pipelines (Jenkins or similar tools)
• Deep understanding of Agile methodologies
• Experience building scalable backend systems

Nice to Have

• Experience in healthcare, insurance, or financial services systems
• Experience with event-driven architectures or messaging systems (Kafka, RabbitMQ)
• Familiarity with Elastic Cloud
• Experience with API testing tools (Playwright, Postman)
• Knowledge of observability tools (ELK, Prometheus, Datadog, Grafana)
• Experience with compliance requirements (HIPAA / PHI / PII)

Pay Transparency

Compensation may vary based on skills, experience, and location. In addition to base pay, employees may be eligible for performance-based bonuses and a comprehensive benefits package including medical, dental, vision coverage, 401(k) with company match, and paid time off.

$120,000—$150,000 USD