Lead Software Engineer

Beacon Software is hiring Lead Software Engineers to work full time within portfolio companies, building and growing their software products. The role combines hands-on software development with modernizing development practices, coaching engineering teams, setting product roadmaps, and putting AI capabilities into production.

Responsibilities:

• Ship. You are hands-on from day one. Pick up the company's stack, get into the codebase and put working software in front of customers early and often
• Modernize the SDLC. CI, tests, staging, feature flags, a deploy anyone can run, coding agents in the loop. Do it while still shipping
• Coach the engineers already there. Most of our teams are small and have been heads-down for years. Make them better
• Set the roadmap. Work with the GM to decide what gets built and own the trade-offs
• Change what a week of work looks like. We work with coding agents every day. Work that took the team weeks should take days. You set that up and teach the team to run it
• Put AI in the product. Retrieval, tool use, evals, guardrails, in production

Requirements:

• 7+ years of software engineering experience, including time as a tech lead, founding engineer, CTO of a small company, or the one engineer holding a product together
• Comfortable in any stack. You have shipped production code in at least three different ones and you pick up new ones quickly
• A fixer. You have taken over a messy codebase and a discouraged team before and can tell us what you did first
• AI-native. You use coding agents every day and can show us your setup
• Easy to work with. GMs, operators and customers will call you directly
• Good judgment on your own. Nobody will be checking your work daily
• You have been the first engineering leader at a company that had none
• Vertical or B2B SaaS experience, especially where the buyer and the user are different people
• You have modernized a legacy codebase without a rewrite