Note: The job is a remote job and is open to candidates in USA. Liftoff is an AI-powered performance marketing platform that helps mobile app marketers acquire and retain users while enabling publishers to maximize revenue. The Senior Gen AI Software Engineer will design and build AI-powered products for Liftoff's demand-side business, developing agentic workflows, data pipelines, Python services, and TypeScript and React interfaces. The role partners with product, engineering, and customer-facing teams to prototype, evaluate, launch, and continuously improve reliable AI capabilities.
Responsibilities
- Own generative AI product capabilities end to end, from understanding user workflows and prototyping an approach through implementation, rollout, measurement, and ongoing improvement
- Rapidly prototype and validate AI solutions, using focused experiments to test user value and technical feasibility, then turn what works into production-ready capabilities
- Build agentic workflows that can reason over campaign, customer, creative, and performance data, use well-defined tools, produce structured results, and hand control back to a person when appropriate
- Partner closely with decision makers and subject matter experts to understand their workflows, constraints, and business context, then integrate AI agents into daily work in practical and useful ways
- Design how AI systems access and use relevant information, including the data, tools, and instructions needed to produce useful grounded results
- Build the systems that make AI workflows reliable in production, including tool use, state management, failure recovery, and appropriate boundaries for human review
- Define clear, testable interfaces between models and software so uncertain model behavior can be handled safely within dependable product systems
- Develop evaluation systems that measure whether AI features accomplish the intended task, using realistic examples and an appropriate combination of automated checks and human judgment
- Build the instrumentation needed to understand quality, adoption, business impact, latency, cost, and failure modes in production
- Apply appropriate safeguards for customer data, system access, and high-impact workflows
- Build the Python services and TypeScript and React interfaces that turn these capabilities into cohesive products for customer facing teams
- Evaluate new models and techniques pragmatically, adopting them when they materially improve product quality, capability, speed, or cost
- Mentor other engineers and help establish shared practices for designing, testing, and operating AI-powered products
Skills
- Minimum Bachelors Degree and 8 yrs of relevant experience
- You are a seasoned software engineer who has built and operated meaningful production products, ideally including zero-to-one work spanning backend services, data, and user interfaces
- You have shipped LLM-powered or AI-assisted products beyond a demo and understand the practical challenges of reliability, context, tool use, provider changes, latency, cost, and changing model behavior
- You are highly proficient in Python and comfortable working in TypeScript and React, with strong fundamentals in API design, data modeling, SQL, and testing
- You understand how to build the broader system around a model, including its data, tools, instructions, permissions, feedback loops, and measures of quality
- You can define success criteria, investigate failures, and use testing, feedback, and production signals to improve AI experiences over time
- You exercise strong product and engineering judgment, choosing when a problem calls for traditional software, an LLM-powered approach, or a thoughtful combination of both
- You communicate complex technical ideas clearly and collaborate effectively with domain experts and non-technical partners
- You are comfortable working through ambiguity, making informed decisions with incomplete information, and changing direction when evidence shows a better path
- You are a lifelong learner with strong but flexible opinions, and you thrive on giving and receiving constructive feedback
- This role is eligible for full-time remote work in one of our entities: CA, CO, ID, IL, FL, GA, MA, MI, MN, MO, NJ, NV, NY, OR, PA, TX, UT, and WA
- We expect our employees to attend these gatherings at least once per quarter
- The preferred location for the role is in Pacific Standard Time Zone
- Experience as an early engineer, startup founder, or in a similarly high-ownership environment where you moved quickly from ambiguous problems to shipped products
- Experience with advertising technology, campaign optimization, performance marketing, analytics products, or other data-rich B2B software
Benefits
- Equity
- Health, vision, and dental benefits associated with your country of residence
- Full-time remote work in one of our entities: CA, CO, ID, IL, FL, GA, MA, MI, MN, MO, NJ, NV, NY, OR, PA, TX, UT, and WA
- Medical coverage
- Wellness stipends
- Additional perks based on your country of residence
Company Overview
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