About Us

Reforged Labs (YC W22) is building the AI-powered creative intelligence platform for mobile marketers and user acquisition teams. Backed by Y Combinator and DCM, our flagship product, Boa, analyzes ad creative performance across the market and helps teams understand what’s working, why it’s working, and what to create next. By integrating MMP data, market intelligence, and proprietary AI agents, Boa predicts and suggests ad creatives with higher hit rates.

In our latest case study with Supercell, 80% of Boa’s ads outperformed Supercell’s own control ads. Teams using Boa ideate, produce, and iterate on ad creatives 2–3x faster while improving ROAS. Our team brings backgrounds from Google, Microsoft, and Harvard.

Our team is building AI agents that transform creative strategy for major global game studios. Our systems handle multimodal understanding across text, image, and video, and deliver in production what traditional teams would prototype in a year. We are a small, senior team operating at the frontier of agentic AI.

The Opportunity

We are looking for a software engineer who can own significant parts of our AI systems end-to-end. You will work directly with product and enterprise customers to scope, build, and ship, not hand off tickets. This means writing production code, making architectural decisions within your domain, and taking full responsibility for the quality and reliability of what you ship.

The scope of your responsibilities will reflect your experience. Engineers with more years take on system-wide architecture decisions, lead technical design for major product areas, and raise the quality bar across the team. Engineers earlier in their careers focus on deep delivery within a domain and build toward that broader ownership over time. All engineers are expected to be comfortable across the full stack, backend in Go and frontend in Next.js, and to work fluently with AI-assisted development tooling.

Core Responsibilities

Design and build production AI agents, agentic workflows, and the backend systems that support them
Own features end-to-end: from technical scoping and architecture through deployment and monitoring
Integrate and extend multimodal pipelines working across text, image, and video
Contribute to and improve shared internal agentic frameworks and infrastructure
Participate in design reviews; contribute to architectural decisions within your scope
Write well-tested, maintainable code and hold the same standard in peer reviews
Collaborate directly with product managers and enterprise customers to iterate on pilots
At senior and staff levels: lead cross-functional technical design, define direction for major product areas, and mentor engineers across the team

Your Skills and Experience

3+ years of professional software engineering experience in a production environment
Strong foundations in computer science: data structures, algorithms, and system design
Proven ability to deliver production software end-to-end with minimal supervision
Proficiency in Go or Python
Clear written and verbal communication in English
Comfort operating in fast-moving environments with ambiguous or shifting requirements

Nice to Have

Hands-on experience building with LLMs, agentic frameworks, or multimodal models in production
Familiarity with orchestration tooling such as LangChain or Google ADK
Experience at a startup or in a founding engineer capacity
Background in full-stack development spanning
Go backends and React/Next.js frontends
At senior/staff level: demonstrated history of technical leadership and cross-functional influence

Tech Stack

Primary languages: Go (backend), Next.js (frontend)
AI development: Claude Code

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