Lead Software Engineer – Frontend

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New York / $220000 - $240000 annum

INFO

Salary

SALARY:

$220000 - $240000

Location

LOCATION

New York

Job Type
JOB TYPE

Permanent

Lead Software Engineer - Frontend

New York City, NY - 3 days per week onsite

$220,000 - $240,000 base salary + annual bonus + RSUs

THE COMPANY

Harnham is partnering with a high-growth consumer technology and financial services business operating at significant scale, serving millions of users globally. Backed by the resources and stability of a large public technology organization, the business combines the agility of a startup with the reach, data, and impact of an enterprise platform.

This is an exciting opportunity to join a rapidly expanding AI-focused engineering team that is transforming how software is designed, built, and maintained. The organization is investing heavily in AI-enabled development tools, intelligent agents, and next-generation engineering practices, with plans to significantly scale the team over the coming months.

RESPONSIBILITIES

  • Lead the design and delivery of AI-augmented software solutions across critical product initiatives.
  • Partner with engineering leaders, product stakeholders, and architects to define technical strategy and execution plans.
  • Build and deploy intelligent agent frameworks that assist with software development, code review, testing, and operational efficiency.
  • Drive modernization efforts by migrating legacy systems and improving platform scalability and maintainability.
  • Define and implement specification-driven development practices that leverage generative AI capabilities.
  • Own the technical direction for a key product vertical while mentoring engineers and influencing architecture decisions across teams.

SKILLS AND EXPERIENCE

Required

  • 8+ years of professional software engineering experience.
  • Strong full-stack development background with deep expertise in TypeScript.
  • Experience with modern server-side frameworks such as NestJS, Remix, or similar technologies.
  • Hands-on experience designing and deploying applications in Kubernetes environments.
  • Demonstrated experience leading large-scale technical initiatives and influencing engineering best practices.
  • Exposure to AI-assisted software development, LLM-powered applications, developer tooling, or agent-based systems.
  • Bachelor's degree in Computer Science or a related technical discipline.

Preferred

  • Experience with modern AI development platforms, orchestration frameworks, and model integration patterns.
  • Knowledge of functional programming concepts and practices.
  • Experience working within marketplace, fintech, consumer technology, or product-driven organizations.
  • Familiarity with advanced frontend architecture concepts, including suspense boundaries and modern rendering techniques.

BENEFITS

  • Competitive base salary and bonus structure.
  • Meaningful equity participation.
  • Hybrid working model with a collaborative engineering culture.
  • Opportunity to shape the future of AI-enabled software engineering.
  • High-impact role with significant technical ownership and visibility.
  • Career progression within a rapidly growing engineering organization.

HOW TO APPLY

Please register your interest by sending your CV via the Apply link on this page.

KEY TERMS

Lead Software Engineer | Principal Engineer | Senior Software Engineer | AI Engineering | Generative AI | Agentic AI | LLMs | TypeScript | NestJS | Remix | Kubernetes | Full Stack Engineering | Technical Leadership | Software Architecture | Platform Engineering | FinTech | Product Engineering | AI-Augmented Development | Enterprise Software | Hybrid NYC

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