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Engineering4 days agoRemote

Liftoff Mobile

Senior GenAI Software Engineer (North America)

pythonjavascripttypescripthtmlllmmultimodal aivision modelsdiffusion modelsaicreative aiad techprogrammaticsoftware engineering

Key details

Salary

Not specified

Employment type

Full-time

Seniority

Senior

Years experience

5-10

Location

Remote, United States

Full job description

Liftoff is hiring a Senior GenAI Software Engineer to join the Creative GenAI team. The role involves architecting and shipping AI systems for generating ad creatives, including interactive playables, using Python, JavaScript/TypeScript, and multimodal AI models such as vision and diffusion models. Candidates must have a Bachelor's degree, 5+ years of relevant experience, strong system design skills, and experience shipping LLM-powered systems to production. The position is remote with a preference for Eastern Standard Time Zone. Responsibilities include prototyping, collaborating with creative teams, designing robust AI systems, building evaluation infrastructure, researching new AI capabilities, and mentoring team members. Compensation includes a salary range depending on location, equity, and health benefits.

What you'll do

  • Architect and ship AI systems that generate ad creatives end-to-end, including interactive playables
  • Rapidly prototype solutions and move from proof-of-concept to production
  • Collaborate with creative strategists, content leads, and builders to scale systems
  • Design robust systems with guardrails, fallbacks, and quality gates for AI-generated output
  • Build evaluation infrastructure for creative output including subjective quality assessment, human-in-the-loop review, and A/B testing
  • Research new model capabilities and propose new initiatives
  • Mentor team members and improve engineering practices

Requirements

  • Minimum Bachelor's Degree
  • 5 years of relevant experience
  • Significant pre-LLM production experience
  • Strong fundamentals in system design, debugging, and observability
  • Proficient in Python for AI/agent work
  • Fluent in JavaScript/TypeScript for creative and playables work
  • Experience with HTML and gaming is a plus
  • Experience shipping LLM-powered systems to production
  • Experience with multimodal AI, specifically image and/or video generation models
  • Strong communication and collaboration skills
  • Ability to navigate ambiguity and adapt to shifting priorities
  • Located in Eastern Standard Time Zone

Tech stack

PythonJavaScriptTypeScriptHTMLLLMsmultimodal AIvision modelsdiffusion modelsAI-powered creative systemsinteractive playables

Benefits

EquityHealth benefits (medical, vision, dental) based on country of residenceWellness stipendsAdditional perks based on country of residenceCompetitive salary based on role, level, and location

Apply now

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