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Mixmax is the #1 product helping revenue teams work proactively by eliminating busywork and creating seamless customer experiences. As we scale, we’re looking for staff-level engineers who thrive in startup environments - people who are energized by building, iterating, and driving impact with autonomy. This is more than a coding role. It’s an opportunity to shape the technical direction of a fast-moving, product-led company with thousands of users. As a Staff Engineer at Mixmax, you’ll work across teams to influence key product decisions, ship high-impact features, scale our architecture, and level up our engineering culture. We move fast, operate globally, and prioritize clear thinking, kind communication, and pragmatic solutions.
Job Responsibility:
Be the senior technical voice in your team: design, review, mentor, and help deliver major features at high quality
Partner with the other Staff Engineers to drive cross-company technical strategy, architectural standards, and engineering culture
Own cross-cutting initiatives: scalability, reliability, developer experience, system evolution
Define, evangelize, and maintain lightweight guardrails (RFCs, ADRs, patterns etc) that scale with our team
Work alongside PMs, Designers, and Engineering leadership to align on direction, push back when needed, and ensure architecture enables (not constrains) product goals
Raise the bar on quality, mentoring engineers, and contributing to how we work, review, and make decisions
Own your impact. At this level, you’ll define what success looks like: spotting high-leverage opportunities, setting your own direction, and making tangible improvements that strengthen how we build, ship, and collaborate
Requirements:
Deep expertise in backend development with the versatility to work across the stack
Strong hands-on experience with TypeScript, Node.js, and familiarity with MongoDB and AWS-based architectures
Exposure to or curiosity about AI tools and their real-world application in user-facing products
Experience working in cross-functional product teams, balancing product and technical decisions
A track record of pragmatic, high-impact technical calls and influencing outcomes across teams
Experience mentoring and levelling up other engineers
Excellent communication skills - you can simplify complex systems and align people around ideas