Principal Software Engineer

New York, NY; San Francisco, CA | Full-time | Remote

Our hiring partner is a venture-backed startup revolutionizing how structured and semi-structured data is processed using agentic AI and orchestration frameworks. Their platform enables customers to ingest, transform, and act on massive volumes of data intelligently and efficiently. With rapid growth and a world-class team, they’re now looking to bring on a Principal Software Engineer to help architect and scale their next-gen AI data platform.

About the Role
As a Principal Engineer, you’ll play a foundational role in building, scaling, and securing the AI-powered infrastructure that underpins the company’s data processing platform. You will lead end-to-end development of critical backend systems and data orchestration workflows while mentoring the team and shaping product direction.
This is a highly impactful and autonomous position suited for a strong systems thinker with deep backend experience, a data-first mindset, and a passion for building elegant, scalable solutions.

Key Responsibilities

• Architect and build core components of the company’s agentic AI platform
• Develop distributed systems for:

1. Data ingestion from warehouses, CRMs, APIs, and public datasets
2. LLM-powered data transformation & enrichment
3. Real-time querying & aggregation (e.g., using Clickhouse/Presto)
4. Workflow orchestration to act on data (Slack, Outreach, webhooks)

• Own platform scalability, reliability, and performance as data volumes grow
• Lead backend design decisions, enforce coding best practices, and support secure development protocols
• Collaborate cross-functionally with product, infra, and AI research teams
• Mentor and coach junior engineers; provide technical leadership
• Leverage AI-powered productivity tools (e.g., Copilot, Cursor) to accelerate development

Tech Stack You’ll Work With

• Languages: TypeScript
• Infrastructure: AWS, GraphQL
• Data Systems: Clickhouse, Presto
• Workflow: Temporal, Webhooks
• AI/ML: LLMs, agentic frameworks

Requirements

• 3+ years of experience designing and building distributed backend systems
• Expertise in building and maintaining data-intensive applications
• Deep experience working with cloud-native infrastructure (preferably AWS)
• Solid understanding of system architecture, CI/CD pipelines, and secure code practices
• Experience with high-volume data ingestion, transformation, and querying
• Strong bias for action, startup mindset, and ability to move quickly with high-quality results
• Strong communicator and collaborator who thrives in a cross-functional, fast-moving team
• Exposure to or interest in working with LLMs, data orchestration, and AI tools
• Familiarity with TypeScript and data query languages is a plus

Compensation & Benefits

• Base salary: $120,000 – $240,000 (commensurate with experience)
• Equity: Generous stock options package
• Benefits:
• Top-tier medical, dental, and vision insurance
• Monthly wellness stipend
• 401(k) via Guideline
• Access to executive mentorship programs
• Flexible PTO (minimum 2 weeks/year required to prevent burnout)
• Offices in NYC and SF (or home-office stipend for remote workers)

Why Apply

• Build mission-critical infrastructure at the intersection of AI and big data
• Work alongside some of the brightest minds in engineering, ML, and product
• Shape an early-stage platform and define its long-term technical roadmap
• Join a well-funded company in hyper-growth mode with an inspiring vision and culture