Senior Staff Software Engineer - Integration - Stellar Cyber

Join a fast-growing global leader in cybersecurity, trusted by some of the biggest names in the industry. In addition to some of the world’s largest enterprises and government agencies, more than 30% of the world’s top MSSPs rely on our platform. We’re at the forefront of protecting organizations against sophisticated cyber threats using cutting-edge AI and automation technologies. Our culture is built on diversity, openness, and collaboration, fostering creativity and innovation that drives real impact in the market.

Position Overview

We are looking for a Senior Staff Software Engineer to take ownership of one or more integration domains on our Automation-Driven Open & Unified SecOps Platform (powering our AI-driven SIEM, NDR, Open XDR, and Multi-Layer AI). This is not just a senior IC role—we need someone who can independently lead projects end-to-end, pick up whatever knowledge is missing to get the job done, make architectural decisions with confidence, set technical direction, and mentor engineers on the team.

As we scale, we need technical leaders who can be the go-to person for design guidance, code review, and engineering growth within their domain—someone whose work has a multiplier effect on the entire team’s output, not just their own. We move fast, give engineers real autonomy, and embrace AI not just in our products but in how we build them.

This role carries a dual mandate: delivering robust, production-grade integrations that support our growing customer base, while driving the architecture forward so the platform can scale to the next level. You will architect and deliver microservice-based solutions spanning both traditional and AI-native integration patterns—REST, GraphQL, streaming APIs, MCP, and LLM-powered automation—connecting our platform with a wide range of cybersecurity tools and third-party services.

What You Will Own

We need someone who focuses on the work AI cannot do—and uses AI to amplify everything else.

The work only you can do

• Own one or more integration domains end-to-end: roadmap, architecture decisions, trade-offs, and delivery. You identify what needs solving, scope it, and drive it to completion.
• Make the architectural calls—system boundaries, API contracts, reliability targets, build-vs-buy trade-offs—that require deep judgment and context no AI can replace.
• Serve as a technical mentor to the engineering team—through design reviews, pairing sessions, and code reviews—with a focus on growing engineers’ ability to independently own projects and make sound design decisions.
• Set technical direction and champion engineering rigor across the team: quality, documentation, and best practices in secure coding and distributed systems.

What you’ll use AI to amplify

• Accelerate your own design and development workflow using LLM-based coding assistants,