Lead Software Engineer

The Role

Raydar is recruiting for this role on behalf of our client. Join a very small engineering group as an experienced hands-on engineer who also acts as a product owner. You will deliver new user-facing features and AI-driven functionality, help define technical direction and quality standards, and coach less experienced engineers as the team expands.

What You'll Do

Lead the new build for upcoming enterprise client deliverables, along with related updates to an existing consumer application.

Work directly with company leadership to shape the product roadmap for the coming months and year.

Build, debug and evaluate LLM-based agents, including prompt design and testing harnesses.

Take ownership of security and compliance readiness within the first 90 days.

Mentor and lead other engineers by assigning work, reviewing code and helping hire future teammates.

What We're Looking For

6+ years of software engineering experience, with 6 to 10 years ideal.

Experience taking user-facing products from zero to one at a startup or a leading product company.

Proven ability to build both front-end and back-end features, using React, Python and a major cloud platform.

Hands-on experience running LLM-powered features in production, including coordinating multiple agents, designing inputs, testing quality, adding safeguards and monitoring behavior.

Experience coaching and guiding other engineers.

A high bar for quality, strong ownership, low ego and good judgment about how decisions affect end users.

Ability to work on-site five days a week in Boston.

U.S. work authorization.

Bonus Points

Prior work as a founding engineer or in a technical leadership role.

Background in healthcare or another regulated field.

Familiarity with security and privacy compliance frameworks.

Interest in user interface craft and experience with design tools.

Degree from a top-tier university, or equivalent experience.

Location and Work Model

Boston, MA, United States

On-site, 5 days per week in office

Full-time

Compensation, As The Posting Describes It

Equity