[Hiring] Principal Software Engineer @Stellar Cyber

Role Description

We are looking for a Principal 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.

This role carries a dual mandate:

• Deliver robust, production-grade integrations that support our growing customer base.
• Drive 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.

Please note, as part of our interview process, we will be inviting successful finalists for an on-site interview to meet with our team.

What You Will Own

• Own one or more integration domains end-to-end: roadmap, architecture decisions, trade-offs, and delivery.
• Make architectural calls—system boundaries, API contracts, reliability targets, build-vs-buy trade-offs.
• Serve as a technical mentor to the engineering team through design reviews, pairing sessions, and code reviews.
• 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, AI-driven testing, and automated code review.
• Automate repetitive engineering tasks—builds, deployments, monitoring, incident triage—using AI and scripting.
• Champion AI adoption across the team: help colleagues integrate AI tools into their daily work.

Qualifications

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
• 8+ years of backend software development experience, with 3+ years in a Staff-level or tech lead role.
• Proficiency in Python, Go, or Java with a strong foundation in building and operating microservices in production.
• Deep experience with API design and integration—both traditional (REST, GraphQL, streaming) and AI service integration.
• Strong background in distributed systems, message queues (Kafka, RabbitMQ), or orchestration frameworks (Celery, Airflow, or similar).
• Demonstrated ability to use AI tools (e.g., Copilot, Cursor, Claude, ChatGPT) to accelerate engineering workflows.
• Track record of mentoring engineers and raising the technical capabilities of a team.
• Excellent system design, debugging, and communication skills.

Preferred Qualifications

• Experience in cybersecurity domains: SOAR, EDR, SIEM, XDR, or similar.
• Hands-on experience with large-scale data processing, real-time pipelines, or event-driven architectures.
• Familiarity with cloud platforms (AWS, Azure, GCP) and containerized deployments (Kubernetes, Helm).
• Experience with AI-native integration patterns or hands-on experience building systems that incorporate LLMs or AI services.

Benefits

• Pre-IPO Stock Options
• Medical, Dental & Vision care
• 401(k)
• Employee Assistance Program
• Employee Discount Program
• Life Insurance
• Paid time off
• Referral Program
• Rewards and Recognition Program

Compensation

The base compensation range for this role is USD 190,000-260,000 per year. Total compensation includes bonus opportunity and equity, and will vary based on candidate location.