Software Engineer, AI Platform

Mixpanel; San Francisco (CA); On-site; USD 188,000 - 254,000; Full time

Benefits offered by this job

Medical, Vision, Dental

Mental Wellness

Generous Vacation

Parental Leave

Volunteer Time Off

401K

Job summary

Mixpanel is seeking a driven Software Engineer for the AI Platform team to build scalable, secure infrastructure that accelerates AI agent development. You will lead as a key contributor in a fast, small team, delivering value to users and internal teams.

You will design backend services and orchestration frameworks, focus on reliability, observability, and best practices, and collaborate across product, design, and engineering. This is a frontline, high-impact role in the SF Bay Area.

Qualifications

• Bachelor's degree in Computer Science, Mathematics, a related field, or equivalent practical experience.
• 2+ years of professional software engineering experience.
• Strong full-stack fundamentals: frontend, backend, and data layers.
• Excellent debugging and technical investigation skills.
• Strong technical communication, especially in asynchronous remote environments.
• Ability to move fast and iterate in ambiguous environments.
• Hands-on experience integrating and orchestrating LLMs and agents.
• Experience building AI native systems and scaling them in production.
• Familiarity with techniques to optimize AI agents: eval frameworks, agent tooling, vector search engines, context engineering, and prompt engineering.
• Desire to leverage AI to drive product improvement, observability, and product analytics at scale.

Responsibilities

• Platform Architecture: Design and develop core backend services, APIs, and microservices.
• Agent Orchestration: Build scalable frameworks for multi-step agent workflows.
• Evaluation & Reliability: Build robust evaluation systems for quality and task success.
• Observability & MLOps: Implement monitoring and distributed tracing for AI models.
• Operational Excellence: Ensure high-performance serving with latency and cost-control.
• Collaboration: Work with designers, PMs, and engineers to build self-serve infrastructure.
• Leadership: Mentor junior engineers and conduct design reviews.

Skills

Full-stack fundamentals

Debugging

Technical communication

Async collaboration

Ownership & delivery

LLMs orchestration

AI-native systems

Prompt engineering

Vector search

Context engineering

Education

Bachelor's degree in CS or related

Tools

LLM integration tooling

Agent frameworks

Job description

Mixpanel turns data clarity into innovation. Trusted by more than 29,000 companies, including Workday, Pinterest, LG, and Rakuten Viber, Mixpanel’s AI-first digital analytics help teams accelerate adoption, improve retention, and ship with confidence. Powering this is an industry-leading platform that combines product and web analytics, session replay, experimentation, feature flags, and metric trees. Mixpanel delivers insights that customers trust. Visit mixpanel.com to learn more.

About Mixpanel

Mixpanel turns data clarity into innovation. Trusted by more than 29,000 companies, including Workday, Pinterest, LG, and Rakuten Viber, Mixpanel’s AI-first digital analytics help teams accelerate adoption, improve retention, and ship with confidence. Powering this is an industry-leading platform that combines product and web analytics, session replay, experimentation, feature flags, and metric trees. Mixpanel delivers insights that customers trust. Visit mixpanel.com to learn more.

About The Team

The AI Platform team is a newly formed team at the center of Mixpanel's AI-first analytics vision. With a greenfield charter, we're building the infrastructure that accelerates and transforms AI product development at Mixpanel, both internally and for our customers. We provide the tools to improve AI products, enabling internal teams and customer agents to build things that were previously unimaginable. We build shared infrastructure that is essential for developing AI features with confidence and speed, and that gives every agent the tools, context, and quality guarantees to act autonomously on behalf of users.

Some Examples Of What We Are Building

• Agent Optimization Framework: A system that optimizes AI products for quality, speed, and cost, using metrics from production and evals, given the context of the invocation.
• AI Agent Integrations and Accessibility: Products and tools that bring the power of Mixpanel to wherever it is most effective for our customers, including a Mixpanel slackbot, MCP, and a public skills library.
• AI Engine: Services that centralize core AI and LLM functionality at Mixpanel in order to accelerate AI development, compound the value of AI efforts, and provide customers with a consistent experience.

Role Overview

We are looking for a driven Software Engineer to join our AI Platform team. You will be responsible for building the scalable, secure, and reliable infrastructure that accelerates AI agent development. You will be a leader and key contributor in a small, fast paced, newly formed team with a mandate to empower AI development across the company.

Responsibilities

• Platform Architecture: Design and develop the core backend services, APIs, and microservices that enable product teams to easily and securely leverage AI models.
• Agent Orchestration: Build scalable frameworks and tools to support multi-step agent workflows, including task decomposition, tool invocation, and persistent memory.
• Evaluation & Reliability: Build robust evaluation systems to continuously measure reasoning quality, hallucination rates, and task success.
• Operational Excellence: Architect high-performance serving infrastructure with strict guarantees around latency, throughput, cost-efficiency, and error handling.
• Observability & MLOps: Ensure comprehensive monitoring, structured logging, and distributed tracing across all deployed AI models.
• Collaboration: Partner with designers, product managers, and other engineers to build self-serve infrastructure that transforms our AI development cycle.
• Leadership: Advocate for software engineering best practices, conduct thorough design and code reviews, and mentor junior engineers.

We're Looking For Someone Who Has

• Bachelor's degree in Computer Science, Mathematics, a related field, or equivalent practical experience
• 2+ years of professional software engineering experience
• Strong full-stack fundamentals: you're comfortable working across frontend, backend, and data layers
• Excellent debugging and technical investigation skills
• Strong technical communication, ideally with experience collaborating in an asynchronous remote environment
• Ability to move fast and iterate in ambiguous environments: you take ownership and focus on delivering value to users
• Hands on experience integrating and orchestrating LLMs and agents
• Experience building AI native systems, including iteratively improving and scaling them in production
• Familiarity with techniques used to optimize AI agents: eval frameworks, agent tooling, vector search engines, context engineering, and prompt engineering.
• A desire to be on the forefront of leveraging AI to drive product improvement, observability and product analytics at scale.

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 the SF Bay Area Technology data cut released by Radford, a global compensation database. The range displayed represents the minimum and maximum TTCC for new hire salaries for the position across all of our US locations. 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.

Mixpanel Compensation Range

$188,000 - $254,000 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 9,000 customers and $277M raised 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.