Sr/Staff Software Engineer - COB & Subrogate

Responsibilities

You will set the architecture and technical direction for backend systems while shipping cloud-native services that power high-stakes payment-integrity decisions. You will also mentor engineers, collaborate cross-functionally, and own your services in production to ensure reliability and performance.

Requirements

Candidates must have 6-10+ years of backend engineering experience with strong proficiency in Rust, Java, Go, or Scala. You should possess deep expertise in system architecture, distributed systems, and cloud-native development, along with a proven ability to work with agentic AI tools.

Skills

• Rust
• Java
• Go
• Scala
• System architecture
• Cloud development
• Distributed systems
• AWS
• GCP
• Azure
• Docker
• Kubernetes
• CI/CD
• SQL
• NoSQL
• Agentic engineering

Benefits

• Medical insurance
• Dental insurance
• Vision insurance
• FSA
• HSA
• Tuition reimbursement
• 401(k) with company match
• Unlimited PTO
• Equity
• Health and wellness benefits

About this role

Machinify is a leading healthcare intelligence company with expertise across the payment continuum, delivering unmatched value, transparency, and efficiency to health plan clients across the country. Deployed by over 85 health plans, including many of the top 20, and representing more than 270 million lives, Machinify brings together a fully configurable and content-rich, AI-powered platform along with best-in-class expertise. We’re constantly reimagining what’s possible in our industry, creating disruptively simple, powerfully clear ways to maximize financial outcomes and drive down healthcare costs.
We're hiring for a Staff and Senior Backend Engineer to join our expanding Right Payer Solutions product team across Subrogate and COB product lines.
Our Culture @ Machinify
We embrace complex challenges with curiosity — a genuine interest in understanding the hard problems at hand and how to move the needle forward. Our engineers empower each other to take action, learn deeply about our customers' needs, and unlock innovation with a strong sense of product ownership. We build with our users in mind, thoughtfully shipping outcomes, not just features. The technology we build shapes real healthcare decisions, demanding a high bar for engineering excellence — what we ship carries real weight. We pressure-test new AI tools, shape how they're used, and set the example for what disciplined, AI-driven engineering looks like: fast, but always under structured human oversight.
The Role
We're hiring a Staff / Senior Backend Engineer to join our expanding engineering team spanning the Subrogation and Coordination of Benefits (COB) product lines. This is a joint posting for both lines — you'll join one of them, matched on your background and team need.
You'll set technical direction for backend development and use your deep programming expertise to design, build, and operate scalable, reliable cloud-native services and distributed systems that run at scale on AWS, GCP, or Azure. You'll work alongside AI coding agents as a core part of how you deliver — directing and reviewing their output while holding the bar on quality. The ideal candidate has strong experience in application design, system architecture, and cloud development, plus a proven ability to drive adoption of new languages, tools, and agentic development practices across a team.
You'll join a highly visible engineering team trusted to solve complex, high-stakes problems using the best of AI, data, and software systems. Partnering cross-functionally, you'll influence product direction, work directly with customers, and own systems that positively impact millions of lives — where your technical decisions truly matter.
We develop in Rust; strong Java, Go, or Scala engineers are a great fit and we'll help you adopt Rust effectively. This is hands-on product engineering — building and owning production services and features, not a DevOps, Platform, or SRE role.
Click here to learn more about our COB (Coordination of Benefits) & Subrogation product lines.
Does this sound like the right opportunity for you? Let’s connect!
What You’ll Do
Set the architecture and technical direction for backend systems on your product line
Ship cloud-native services that power accurate, high-stakes payment-integrity decisions
Turn ambiguous product intent into concrete, well-sequenced backend design
Own your services in production — reliability, observability, and performance at scale
Raise the engineering bar and grow the team's programming maturity as we scale Rust
Set the standard for AI-driven delivery, keeping delivery fast and under human oversight
Simplify labor-intensive workflows by applying ML techniques to large volumes of data
Balance new customer value with technical-debt cleanup to keep the product sustainable
Partner with PM, ML/DS, QA and UX to shape product direction and outcomes
Mentor engineers and act as the backend voice in cross-team planning
Work directly with customers on systems that impact millions of lives
What You Bring
10+ years of backend engineering for Staff, 6+ years for Senior (full-stack experience a plus)
Strong application design and system architecture across complex backend systems
Proven ability to author technical design documents that satisfy engineers and product partners alike
Substantial production experience in Rust, Java, Go, or Scala; Rust highly desired
Proven experience designing, building, and operating distributed systems at scale
Hands-on with containers and orchestration (Docker, Kubernetes) in production
Ownership of CI/CD pipelines for your own services — building them, not just consuming them
Production experience on at least one major cloud — AWS, GCP, or Azure
Strong SQL and relational database skills; comfort across NoSQL and caching layers
Hands-on experience with agentic engineering tools and workflows in production
Proven ability to read complex code and own and continually improve code quality
Strong cross-functional collaboration with engineering, PM, ML/DS, and leadership
A pragmatic default and strong systems instinct — you find root causes, not symptoms
Comfort with complexity and curiosity to define the path forward, not wait for one
BS or MS in Computer Science, or equivalent experience
Nice to have
Technical leadership on Rust best practices — idioms, safety, and performance — as the team scales adoption across greenfield projects
Healthcare, payer, or insurance domain experience; claims or payment-integrity workflows
Experience shipping ML/AI-driven features in production and earning the business's trust in them
What We Offer
Work from anywhere in the US! Machinify is digital-first.
Top Medical/Dental/Vision offerings
FSA/HSA
Tuition reimbursement
Competitive salary, 401(k) with company match
Unlimited PTO
Additional health and wellness benefits and perks
Flexible and trusting environment where you’ll feel empowered to do your best work
The salary for this position is based on an array of facto...

About Machinify

Software Development · 1,001-5,000 employees · headquartered in Palo Alto, California