Senior Full Stack Engineer (Core Engine)
$120k - $150kOffice Ally
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
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) to improve development speed and efficiency, and apply modern testing approaches such as automated API and workflow validation (e.g., Playwright, where applicable) to ensure system reliability.
This role is central to building and maintaining the backend systems that power our core products and integrations. You will directly impact system scalability, reliability, and performance across multiple customer-facing and internal platforms. Your work will help ensure that complex healthcare and insurance transactions are processed accurately, efficiently, and securely at scale.
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 across internal and external systems
- Participate in system design and architecture discussions for scalable backend solutions
- Work closely with product, implementation, QA, and engineering teams to define technical requirements
- Support complex data processing, transformation, and integration workflows
- Ensure backend systems are secure, reliable, and performant under high transaction volumes
- Utilize Claude to support development, accelerate problem-solving, and improve productivity while maintaining high code quality.
- Contribute to CI/CD pipelines, deployment automation, and DevOps practices
- Write clean, maintainable, and testable code with strong unit and integration test coverage
- Apply modern engineering practices, including shift-left testing and continuous quality improvement
- Use AI-assisted development tools (Claude Code, Copilot, etc.) to accelerate development, debugging, and analysis
- Improve system observability through logging, monitoring, and diagnostics enhancements
- Troubleshoot production and integration issues as needed
What You'll Need
- Bachelor's degree or equivalent experience in Computer Science or related field
- 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 backend frameworks
- Strong SQL experience (Oracle preferred) and familiarity with NoSQL databases
- Experience working with cloud platforms (AWS, Azure, or GCP)
- Experience and passion around working with AI: Copilot, Claude, Windsurf, Gemini Code, or similar
- Experience with containerization (Docker) and orchestration (Kubernetes)
- Familiarity with CI/CD pipelines (Jenkins or similar tools)
- Deep understanding of Agile development methodologies
- Experience building maintainable, scalable backend systems
Nice to Have
- Experience in healthcare, insurance, or financial services systems
- Exposure to high-volume transaction processing or integration-heavy environments
- Experience with event-driven architectures or messaging systems (Kafka, RabbitMQ, etc.)
- Familiarity with Elastic Cloud
- Experience with API testing or workflow automation tools (Playwright, Postman, etc.)
- Knowledge of system observability tools (ELK, Prometheus, Datadog, Grafana, etc.)
- Strong debugging and production troubleshooting skills
- Experience working with sensitive data and compliance requirements (HIPAA / PHI / PII)
- Strong communication skills and ability to collaborate across technical and non-technical teams
Pay Transparency
Office Ally is committed to fair and equitable compensation practices in alignment with pay transparency laws. Compensation for this position may vary based on individual 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, and vision coverage, 401(k) with company match, paid time off, and other benefits. Actual compensation will be determined considering the candidate's qualifications, relevant experience, and internal equity.
Office Ally Pay Transparency
$120,000—$150,000 USD
Why You'll Love Working at Office Ally
At Office Ally, your work has a direct impact on healthcare providers and their ability to deliver exceptional care. We're driven by a mission to simplify healthcare administration, making it easier for providers to focus on what they do best—helping patients. As an Office Ally employee, you'll be at the heart of our efforts to deliver exceptional service and software solutions to our clients in the healthcare space.
EEO Note
Office Ally is an Equal Opportunity Employer and does not discriminate against any employee or applicant on the basis of age, color, disability, gender, national origin, race, religion, sexual orientation, veteran status, or any classification protected by federal, state, or local law.
$120k - $160k
...company located in Berkeley, California seeks a hands-on Senior Engineer to build end-to-end systems and own core product pieces. You will utilize your expertise in... ...and the agility to ship features quickly. This is a full-time role offering a competitive salary range of $12...SeniorFull time$120k - $150k
...healthcare providers has grown into a full-suite healthcare technology company.... ..., payers, and partners. At the core of our company are four key values that... ...and Healthcare industries. As a Senior Full Stack Development Engineer, you will play a key role in...SeniorWork at officeLocal areaShift work2 days per week$160k - $180k
...Description Department: Engineering Employment Type: Full-time Location: Remote within the United... ...Role Summary We’re looking for a Senior Software Engineer who loves building... ...Pacific Time working hours Tech stack: React, Mantine/Tailwind, Java/Kotlin...SeniorFull timeTemporary workImmediate startRemote workVisa sponsorship$170k - $240k
...where impact drives revenue. About the Role We’re hiring a Senior Fullstack Engineer who wants to build consumer products at meaningful scale... ...Have Experience 5+ years building and maintaining complex full-stack systems Experience in startup or high-ambiguity environments...SeniorRemote workShift work$140k - $180k
...Wanna join the adventure? Loft Orbital is looking for a Senior Full‑Stack Engineer to join our Oort team. Oort is our central web platform—a unified environment that consolidates all infrastructure data and tools, empowering Loft to streamline, integrate,...SeniorFull time- PLEASE CLICK HERE TO SEE *ALL* OF OUR JOB OPENINGS!Senior Full Stack Engineer (Backend)As a Senior Full-Stack Engineer, you'll be a key player in building the technology platform that delivers these insights, working with cutting-edge algorithms and composite AI solutions...SeniorCasual workWork at office
- ...and GraphQL, with strong debugging and troubleshooting skills.Full Stack - Hands-on experience with MySQL, MS SQL, NoSQL databases,... ...cloud platformExperience with AI-powered development tools for engineering productivity and solution quality (e.g., GitHub Copilot, Claude...Senior
$166.6k - $208.3k
...through the skies. It embodies the elegance of simplicity in engineering, transforming the demanding task of controlling an aircraft... ...product engineering group is growing and we’re looking to hire senior full-stack engineers. We’re a team of pragmatic, product-minded...Senior$180k - $230k
...Kiddom helps schools and districts deliver more equitable, effective, and adaptive learning experiences.We're looking for a Senior Full Stack Engineer to join our AI Experience Pod, the team behind Kiddom's flagship AI-powered experience for teachers and students. You'll...SeniorPermanent employmentLocal areaFlexible hours$161k - $210k
Senior Software Engineer Dealpath is the AI-powered operating system for institutional real estate investing — purpose-built to help the world's... ...managing trillions in real assets, using AI coding tools as a core part of how you build every day. We're looking for engineers...SeniorCasual workImmediate start$141.9k - $190.3k
...Entertainment and ESPN Product & Technology is a global organization of engineers, product developers, designers, technologists, data... ...for ad breaks across Hulu, Disney+, ESPN, and others.As a Senior Full Stack Software Engineer (P3) on our team, you’ll leverage your...SeniorWork experience placementWork at office- ...We're looking for a senior full stack engineer to help build the core systems behind AI teammates for finance. You'll design and ship infrastructure that allows agents to initiate, execute, and complete real workflows across messy enterprise environments. This is not surface...Senior
- ...Unlock Healthcare's Full CapacityHospitals run on three things: their people, their beds... ...best next actions.You'll own the decision engine behind those recommendations, turning messy... ...WhyExperience working across the entire tech stack.Strong systems thinking and the ability to...SeniorWork at officeRelocation
$100k - $200k
...States of AmericaTime Type: Full timeAbbott is a global healthcare... ...OPPORTUNITYThisSenior Full Stack Engineer position can work out of... ...CA location.We are seeking a Senior Full Stack Engineer with strong... ...application performance including Core Web Vitals, bundle size, and...SeniorWorldwideShift work$95.55k - $195.25k
...role ends on May 31, 2027. What You’ll Do As a Deloitte Tax Full Stack Engineer, Senior you’ll design, develop, and deploy cutting-edge web... ...(e.g., Angular, React).Proven hands-on experience on .NET Core, ASP.NET Core Web API, SQL, NoSQL, Entity Framework 6 or above...SeniorWork at officeLocal areaVisa sponsorshipShift work2 days per week3 days per week$140k - $200k
...conquering their day. HONK is seeking an experienced and versatile fully remote Senior Software Engineer. In this role, you will work closely with our CTO and team of full-stack engineers to design, architect, and build new products and features. From enhancing our...SeniorRemote work$163k - $246.5k
...more at semgrep.dev. About the role As a Fullstack Engineer, you’ll work across the stack to design, build and maintain a fast and reliable user... ...physics and philosophy to formal methods research and full-fledged corporations. We’re new parents and new grads, dog...SeniorFull timeCurrently hiringLocal areaRemote workWeekend work3 days per week- ...Senior Full-Stack EngineerAs a Senior Full-Stack Engineer, you will design, build, and deploy the frontend and backend services that power our creative brainstorming and creation products. You will work with emerging web standards to build web-based image and video creation...Senior
$196k - $220k
...playing games. We're looking for a Senior Software Engineer to join the Growth team at Discord. Our... ...engaged members. You'll work across the stack to build the systems that acquire and activate... ...content at scale Work across the full stack — frontend (TypeScript, React)...SeniorFull time- ...Senior Full-Stack Engineer Mach9 is at the forefront of leveraging advanced machine learning and computer vision techniques to transform raw geospatial data into actionable insights to help civil engineers build and maintain infrastructure globally. Our first product...Senior
$196k - $220.5k
...mobile. Collaborating with the other engineers on your team to write, review, and ship elegant... ...with at least a couple parts of our tech stack: Python, Typescript/React, Elixir, Rust... .... The US base salary range for this full-time position is $196,000 to $220,500 +...SeniorFull time$196k - $220.5k
...games. Game Records are the core of our gaming conversation. It... ...launches at Discord. Our engineering culture values collaboration,... ...switching between different technical stacks and learning new ones. You... ...US base salary range for this full-time position is $196,000 to $...SeniorFull time$150k - $185k
...Senior Full Stack Engineer, PremiumSan Francisco, CA, Washington, D.C., New York City, N.Y., Remote (USA)Rocket Money's mission is to meaningfully improve the financial prosperity of millions of people. Rocket Money offers members a unique understanding of their finances...SeniorTemporary workWork at officeRemote work$196k - $220.5k
...highly technical, creative, hands-on, and impact-focused Software Engineer to join our growing Ads team. Our team is revolutionizing... ...latest industry technologies What you should have ~ Full-stack experience with hands on experience with Typescript, React, Python...SeniorFull timeRelocationRelocation package$171.5k - $250k
...here—and you’ll pioneer the future of education, too. As a full-stack engineer at ClassDojo, you'll help build the systems that will... ...users incrementally. Help grow other engineers into more senior engineers. Systematically improve the quality of our product...SeniorRemote work- ...Everyone owns a domain that would be a full team at a larger company. San... ...The Role Sphere is looking for senior full stack engineers who will own and build out new product... ...Requirements Experience in Python. Our core application backend and data pipeline...SeniorWork at office
- ...country. If you're excited to help shape the future of healthcare, we'd love to meet you.About the RolePlenful is hiring Senior Full-Stack Engineers across all three of our product teams — 340B, Intake, and a new pod opening up a fresh area of pharmacy operations. You'll...SeniorFull timeLive inWork at officeRemote workShift work2 days per week
- ...Senior Full Stack Engineer Locations: San Francisco At Kargo, our mission is to build a connective tissue between the physical world of freight and the digital ecosystem used to manage it. We believe that advancements in smart infrastructure are critical to enabling...SeniorLocal area
$211k - $250k
...Senior Full Stack EngineerLocation: Remote (United States, Canada, Latin America) Company Stage of Funding: Series C / AI + Blockchain Intelligence... ...across 180+ blockchains.The company is at a stage where engineers can have meaningful product ownership while benefiting from...SeniorH1bWork at officeRemote workVisa sponsorship- ...architect and not managing one, enterprise architect level in full stack tech stackSeek green card, US citizen, or a heavy hand on H1... ...of 12 years of experience and proven performance at a senior engineering and enterprise architectural level is requiredProducts and solutions...SeniorTemporary workH1bLocal areaImmediate start
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Full Stack Engineer (Core Engine). Be the first to apply!
- full stack developer Berkeley, CA
- full stack engineer Berkeley, CA
- remote .net full stack web developer Berkeley, CA
- senior full stack web developer Berkeley, CA
- senior java full-stack developer Berkeley, CA
- senior developer Berkeley, CA
- senior aws cloud engineer Berkeley, CA
- remote senior salesforce administrator Berkeley, CA
- senior marketing operations manager Berkeley, CA
- senior manager tax Berkeley, CA



