Sr/Staff Software Engineer, Fullstack| Product

We're hiring a Senior Full-stack Engineer (open to Staff) interested in working in Rust or Scala to join our engineering team! We have full-stack needs on our Pay and Subrogate product teams.

Our Culture @ Machinify

We embrace complex challenges with curiosity, having genuine interest and drive to understand 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 and 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

This is a full-stack role with a backend center of gravity. You'll spend the majority of your time designing and building the backend systems and APIs that power our web products. but you're equally comfortable moving up the stack to build the user-facing features those systems support. We're looking for an engineer who can own a feature end to end, from data model to UI, while bringing real depth on the backend. You'll leverage your deep programming expertise to design and build scalable, reliable web application systems — working 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 and system architecture, along with 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. You're responsible for writing code that has a significant impact on our customers and future product lines. Our team partners cross-functionally to influence product direction, work directly with customers, and own systems positively impacting millions of lives, where your technical decisions truly matter.

Click here to learn more about our product lines.

Does this sound like the right opportunity for you? Let’s connect!

What You’ll Do

• Deepen your understanding in the healthcare claims and payments domain
• Developer Coach/Multiplier - An experienced Java, Scala and/or Rust developer who not only builds production-grade services, but also contributes to setting standards, mentors others, and elevates the team’s overall programming maturity.
• Contribute to new product development of complex in-browser applications, taking advantage of your holistic view to ensure our application is extensible, scalable, and secure
• Balance customer-facing features and technical debt cleanup to keep the software suite sustainable
• Architect and implement complex applications that apply ML techniques to large volumes of data, simplifying labor-intensive processes through good user experience
• Design systems that work together to deliver a good-performing, reliable application
• Bring agentic engineering practices into the team’s day-to-day work and help the team adopt them effectively

What You Bring

• 10+ years of experience spread across both frontend and backend programming
• Proven experience designing and shipping customer-facing web application products, you've built features that serve external users and you're energized by that kind of work!
• Experienced in Rust, Java, or Scala with additional strengths across UI development.
• The ability to write a Technical Design Document (TDD) that a staff peer trusts and a product lead can understand — turning ambiguous product intent into concrete backend design
• A product and user-driven mindset. You connect your technical decisions to the people using what you build, and you care about the outcome, not just the implementation
• Strong cross-functional collaboration skills with your engineering peers, senior PM, ML/DS partners, and leadership. You care more about the system landing than about being right.
• A pragmatic default paired with a strong systems instinct – you look for root causes, not symptoms.
• Hands-on experience with agentic engineering tools and workflows in a real production setting.
• Experience reading and understanding complex code, owning code quality and improving it
• Critical thinking and problem solving skills working in a high growth environment where stakes are high
• Comfort with complexity and curiosity to define the path forward, not wait for one
• Nice to have - Provides technical leadership on Rust best practices - idioms, safety, and performance as the team scales its adoption across greenfield projects
• BS or MS in Computer Science (or equivalent experience)

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

How We Evaluate Talent

Our interview process is designed to evaluate candidates across our engineering career ladder. The level, title, and compensation range we're able to offer are determined by your overall performance and the competencies you demonstrate throughout the process which allows us to place each candidate at the level that best reflects their experience and abilities!

The salary for this position is based on an array of factors unique to each candidate: Such as years and depth of experience, set skills, certifications, etc. We are hiring for different levels, and our Recruiting team will let you know if you qualify for a different role/range. Salary is one component of the total compensation package, which includes meaningful equity, excellent healthcare, flexible time off, and other benefits and perks.

Pay Range: $200,000-250,000 ~