Session Replay and Heatmaps: A view of how real people experience a product across web and mobile, so teams can see the why behind the numbers
About the Role
As a Senior Software Engineer on the team, you'll own the technical design and delivery of features across Experiments, Feature Flags, Session Replay, and Heatmaps. You'll work across the full stack, from React frontend experiences to Python backend services to high-throughput systems like flag evaluation and replay ingestion. You'll partner directly with Product and Design to shape where these products go next, and collaborate with teams like AI Engine and Product Platform on shared systems and the SDKs that power our products.
This is a high-impact role on a small, senior team where you'll have significant influence over the technical direction of products that are central to Mixpanel's growth.
Responsibilities
Own technical design for complex features end to end, from backend services and data models to frontend experiences
Make well-reasoned technical decisions that balance speed, quality, cost, and product considerations, anticipating problems and developing contingency plans
Drive reliability, observability, and operational excellence for services that customers depend on in production, addressing tech debt before it becomes a long-term problem
Partner with AI Engine to bring AI into how customers design, run, and understand experiments and replays
Collaborate with Product Platform and other teams on SDKs, shared infrastructure, and architectural decisions that affect the broader platform
Mentor engineers on the team through code reviews, pairing, and 1:1 support, helping them grow technically
Serve as an escalation point for complex bugs and on-call incidents in the team's domain
Work with Support and Solutions Engineering on customer escalations and technical questions from prospects
Partner with Product and Design to identify and lead areas of future work beyond the current roadmap
We're Looking For Someone Who Has
Bachelor's degree in Computer Science, Mathematics, a related field, or equivalent practical experience
5+ years of professional software engineering experience with a proven track record of delivering quality solutions with speed
Experience building and operating production systems end to end, with real ownership of reliability and correctness in a product customers depend on
Expert-level depth in at least one area (systems, web, or data infrastructure) with broad understanding of full-stack architecture
Experience owning technical design for complex projects and managing multiple concurrent workstreams
Strong cross-functional collaboration skills: you work effectively with other teams and organizational stakeholders with little guidance
Sound judgment in setting priorities, selecting technologies, and making tradeoffs that factor in technical, product, and business considerations
A track record of mentoring other engineers and contributing to team growth
Strong technical communication, ideally with experience collaborating in an asynchronous remote environment
A desire to help teams build and decide faster in the AI era
Bonus Points For
React / TypeScript experience
Django / Python experience
Experience with experimentation, feature flagging, or session replay products, as a builder or a heavy user
Experience building high-throughput, low-latency services
Familiarity with analytics or observability platforms
Experience building with LLMs, AI agents, or tool-use frameworks
Comfort using AI coding tools (Claude Code, Cursor, etc.) in your daily work
Additional Resources
Engineering Life Page
Engineering Blog
Compensation
The amount listed below is the total target cash compensation (TTCC) and includes base compensation and variable compensation in the form of either a company bonus or commissions. Variable compensation type is determined by your role and level. In addition to the cash compensation provided, this position is also eligible for equity consideration and other benefits including medical, vision, and dental insurance coverage. You can view our benefits offerings here.
Our salary ranges are determined by role and level and are benchmarked to data released by Radford, a global compensation database. The range displayed represents the minimum and maximum TTCC. To stay on top of market conditions, we refresh our salary ranges twice a year so these ranges may change in the future. Within the range, individual pay is determined by experience, job-related skills, qualifications, and other factors. If you have questions about the specific range, your recruiter can share this information.
SF Bay Area
$235,500—$277,000 USD
New York Metro Area
$235,500—$277,000 USD
Benefits and Perks
Comprehensive Medical, Vision, and Dental Care
Mental Wellness Benefit
Generous Vacation Policy & Additional Company Holidays
Enhanced Parental Leave
Volunteer Time Off
Additional US Benefits: Pre-Tax Benefits including 401(K), Wellness Benefit, Holiday Break
please note that benefits and perks for contract positions will vary*
Culture Values
Make Bold Bets: We choose courageous action over comfortable progress.
Innovate with Insight: We tackle decisions with rigor and judgment - combining data, experience and collective wisdom to drive powerful outcomes.
One Team: We collaborate across boundaries to achieve far greater impact than any of us could accomplish alone.
Candor with Connection: We build meaningful relationships that enable honest feedback and direct conversations.
Champion the Customer: We seek to deeply understand our customers’ needs, ensuring their success is our north star.
Powerful Simplicity: We find elegant solutions to complex problems, making sophisticated things accessible.
Why choose Mixpanel?
We’re a leader in analytics with over 29,000 customers and $277M invested from prominent investors: like Andreessen-Horowitz, Sequoia, YC, and, most recently, Bain Capital. Mixpanel’s pioneering event-based data analytics platform offers a powerful yet simple solution for companies to understand user behaviors and easily track overarching company success metrics. Our accomplished teams continuously facilitate our expansion by tackling the ever-evolving challenges tied to scaling, reliability, design, and service. Choosing to work at Mixpanel means you’ll be helping the world’s most innovative companies learn from their data so they can make better decisions.
Mixpanel is an equal opportunity employer supporting workforce diversity. At Mixpanel, we are focused on things that really matter—our people, our customers, our partners—out of a recognition that those relationships are the most valuable assets we have. We actively encourage women, people with disabilities, veterans, underrepresented minorities, and LGBTQ+ people to apply. We do not discriminate on the basis of race, religion, color, national origin, gender, gender identity or expression, sexual orientation, age, marital status, veteran status, or disability status. Pursuant to the San Francisco Fair Chance Ordinance or other similar laws that may be applicable, we will consider for employment qualified applicants with arrest and conviction records. We’ve immersed ourselves in our Culture and Values as our guiding principles for the impact we want to have and the future we are building.
