As a Software Engineer, you will develop the AI agents platform, collaborate with cross-functional teams, and ensure technical excellence by contributing to product designs and implementations.
InstaLILY is a New York-based AI startup working at the cutting-edge of agentic AI. We build autonomous agents at the frontier of enterprise software, machine intelligence, and human-AI collaboration. This role is based in-person at our San Francisco office.
As a Software Engineer at InstaLILY, you’ll join a team drawn from top-tier university programs. You’ll develop our AI agents platform and drive technical excellence across the org. You’ll work closely with the Lead Software Engineer and cross-functional teams to design and implement new features and capabilities, and help build a culture of continuous learning as we grow.
This role is client-facing. You’ll build and ship AI agents that operate inside our customers’ systems, and you’ll be in regular working sessions with stakeholders at enterprise customers. You need to code at a high bar and communicate decisions clearly.
Responsibilities
- Develop InstaLILY’s AI platform and drive technical excellence throughout the organization
- Work closely with cross-functional teams (product, UI/UX, business development, growth) and key business stakeholders to design and implement new features and capabilities
- Partner with the Growth team during customer deployments: understand workflows, defend architectural decisions, and iterate on feedback
- Raise quality and reliability through comprehensive testing and CI/CD practices
- Build a rapport with the Lead Software Engineer and Head of Product while fostering a culture of continuous learning and improvement
- Collaborate with the product and design teams to deliver high-quality products that meet customer needs
- Stay up-to-date with the latest AI and software engineering trends and technologies
Requirements
- Bachelor’s in CS, engineering, math, physics, or related: demonstrated ability matters more than credential
- 0–2 years as a software engineer (strong candidates have shipped something with real users)
- Strong fluency in at least one backend language (Python, TypeScript, or similar) and a modern web stack
- AI-serious: you’ve built something with LLMs (a RAG system, an agent, a fine-tuned model, a real integration)
- Strong communication: you can explain what you built and why you built it that way to non-technical audiences
- Strong problem-solving and analytical thinking
What You’ll Get
- Proven product: Customers are live; this isn’t a bet on an unproven thesis
- AI-native: In how we build, how we work, and what we sell
- Stage: Early enough to shape how the company scales
- Global: Based in New York with offices in SF and London
- Culture: Sharp, low-ego team that keeps raising the bar
- Growth: The learning curve is steep
Compensation and Benefits
- Salary Range: $100,000 - $120,000 per year, commensurate with experience
- Equity: Generous stock options awards, and refreshers for top performers
- Benefits: Medical, Dental, Vision, 401K, in-office Lunch reimbursement, Wellbeing Stipend, Generous Parental leave, PTO and 10 US Federal Holidays, and more!
Join InstaLILY and build autonomous agents that matter. If you want a role where your code ships into real enterprise systems and where you’re in the room with customers, we want to hear from you.
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