MNTN · 7 hours ago
Prompt Engineer
United States
Full-time
Remote
Mid LevelMNTN is a company that prioritizes its people and is recognized for its innovative approach in Connected TV advertising. They are seeking a Prompt Engineer to join their engineering team, responsible for designing and managing AI-driven workflows that generate video content from structured inputs, ensuring quality and reliability in production.
AdvertisingMarketingReal TimeSoftware
Responsibilities
Design, write, and iterate on prompts for story and script generation, scene and structural descriptions, and dialog, narration, and timing instructions
Build and maintain AI workflows that coordinate LLMs and generative media models while enforcing schemas, rules, and timing constraints
Handle failures, edge cases, and retries across AI-driven systems
Actively test AI outputs to identify failure modes, regressions, and inconsistencies
Define evaluation criteria and lightweight metrics to assess output quality
Monitor production outputs and continuously improve prompts and workflows
Partner with product and engineering teams to translate requirements into durable AI systems
Document prompt patterns, evaluation methods, and workflow behavior
Qualification
Required
Strong experience with prompt design for large language and generative AI models
Experience testing, validating, and monitoring AI outputs in real systems
Comfort working with structured inputs (schemas, constraints, validation rules)
Systems-oriented mindset with attention to reliability and repeatability
Ability to iterate quickly based on real-world output feedback
Familiarity with multi-model or agent-style AI systems
Preferred
A strong eye for storytelling, pacing, and visual composition
Experience working with video, media, or creative tooling
Experience with Node.js and Typescript
Benefits
100% remote within the US
Flexible vacation policy
Annual vacation allowance for travel related expenses
Three-day weekend every month of the year
Competitive compensation
100% healthcare coverage
401k plan
Flexible Spending Account (FSA) for dependent, medical, and dental care
Access to coaching, therapy, and professional development
Company
MNTN
MNTN Performance TV is a CTV advertising platform with targeting, measurement, and optimization for amplifying marketers' performance goals.
Founded in 2009
201-500 employees
H1B Sponsorship
MNTN has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (4)
2024 (10)
2023 (10)
Funding
Current Stage
Public CompanyTotal Funding
$185.8MKey Investors
BlackRock,FidelityMercato PartnersQualcomm Ventures
2025-05-22IPO
2022-02-01Series D· $119M
2017-05-19Convertible Note
Leadership Team
Mark Douglas
President & CEO
Patrick Pohlen
Chief Financial Officer
Recent News
legacy.thefly.com
2026-01-23
GlobeNewswire
2026-01-22
2026-01-20
Company data provided by crunchbase