# Lead Software Engineer

> Raydar · Boston, United States · Full-time · Posted 2026-10-15

**Salary:** USD 185,000–210,000

**Workplace:** on_site

## Description

About the company

Our client is an early-stage software company.

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.

## Requirements

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.

## Benefits

Compensation and benefits

\- Base salary: USD 185,000 to 210,000 per year

\- Equity

Location and work model

\- Boston, MA, United States

\- On-site, 5 days per week in office

\- Full-time

## Apply

[Apply at Raydar](https://apply.workable.com/raydar/j/873EEC2248/apply)

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