What are the responsibilities and job description for the Lead Software Engineer position at Harnham?
Lead Software Engineer
Location: New York City, NY (Hybrid, 3 days per week)
Pay: $200k - $240k Base Bonus
No Sponsorship Offered
About the Opportunity
A rapidly growing organization is hiring a Lead Software Engineer to help drive its next generation of AI-powered software development initiatives. This position will play a critical role in modernising legacy systems, leveraging large language models to improve engineering productivity, and shaping the future of AI-assisted software delivery at scale.
This is a highly visible individual contributor opportunity with significant ownership, partnering closely with engineering leadership to influence technical strategy and lead one of the team's key product verticals.
Responsibilities
- Partner with engineering leaders to define technical direction and implementation strategy
- Develop and enhance AI-powered solutions that improve software development workflows
- Modernise and migrate legacy applications into scalable, maintainable architectures
- Design and implement full-stack applications using modern TypeScript-based technologies
- Evaluate, deploy, and improve AI agents for coding, code review, and software delivery processes
- Drive development towards specification-based engineering practices
- Contribute to production readiness through observability, monitoring, metrics, and alerting
- Lead technical initiatives across a cross-functional engineering organisation
- Collaborate with teams to validate system performance and reliability in production
Must-Have Qualifications
- 8 years of software engineering experience
- Advanced experience with TypeScript and modern server-side development frameworks
- Experience with technologies such as NestJS, Remix, OpenRouter, or similar platforms
- Proven exposure to AI, LLMs, AI-assisted development tools, or generative AI initiatives
- Bachelor's degree in Computer Science or a related technical discipline
Salary : $200,000 - $240,000