Staff/Principal Software Engineer

Success Matcher Recruitment; New York (NY); On-site; USD 140,000 - 210,000; Full time

Job summary

Success Matcher Recruitment is hiring a Staff/Principal Software Engineer in New York. You will architect major features for omnichannel AI agents, integrating AI tooling and collaborating with the CTO to shape technical strategy.

Expect scalable AWS systems and a hands-on full-stack role geared toward rapid growth. The role targets senior ICs with 7–12 years of production experience, strong Python backend expertise, and familiarity with TypeScript/React.

Qualifications

• 7–12 years of production software engineering experience.
• Strong backend focus with Python; frontend knowledge a plus (TypeScript/React).
• Experience at top-tier tech firms or high-growth startups preferred.

Responsibilities

• Architect and ship major features for omnichannel AI agents.
• Integrate AI coding tools into daily development workflow.
• Collaborate with CTO and founders to shape technical strategy.
• Design and deploy scalable AWS-based systems to enable revenue growth.
• Operate full-stack across the stack as priorities shift weekly.

Skills

Python

TypeScript

React

Education

Top CS programs

Founder/CTO experience

Job description

About the job Staff/Principal Software Engineer

About the Role Our client is a high-growth, venture-backed startup (recently closed a $10M+ Series A) building the industry-leading agentic AI platform for real estate operations. Their technology autonomously handles over 75% of client support interactions across email, SMS, WhatsApp, and voice.

We are seeking a heavy-hitting Senior to Principal level Software Engineer (7–12 years of experience) to join a lean "rockstar" engineering team. You will help scale the engineering organization from 6 to 12+ members while maintaining a rapid shipping velocity. This is a backend-leaning, full-stack role for an elite Individual Contributor who wants to build at the frontier of AI.

What You’ll Do

Architect & Ship: Lead the development of major features for omnichannel AI agents, making critical decisions on infrastructure and system design.

Build with AI: Integrate AI coding tools (Cursor, Claude Code) into your daily workflow to accelerate development.

Collaborate: Work directly with the CTO and founders to shape technical strategy and product direction in fast-paced weekly cycles.

Scale Systems: Design and deploy scalable, high-impact systems on AWS that support 6–7x year-over-year revenue growth.

Operate Full-Stack: Move fluidly across the stack as needed—shifting priorities weekly based on business impact rather than staying in a technical silo.

Who You Are

The Veteran IC: 7–12 years of production experience at top-tier Big Tech firms or recognizable high-growth startups. You are a builder, not a manager.

Python Expert: Deep production experience with Python as a primary backend language. Familiarity with TypeScript and React is a strong plus.

AI-Native Developer: You are highly proficient with modern AI coding tools and believe in the "10x engineer" potential of agentic workflows.

Product-Minded: You understand the business context of your code and care about the "why" behind the product.

Education & Background: Strong academic background (Top CS programs) or previous experience as a founder/CTO is highly preferred.

Why Join?

Work with a team of ex-Meta, Google, and Microsoft engineers.

Massive equity upside in a company that has proven product-market fit and explosive revenue growth.

High autonomy in a "no-ego" environment where the best ideas win.