Principal Software Engineer - Data PlatformPrincipal Software Engineer - Data Platform Principal Software Engineer - Data Platform

Find out exactly what skills, experience, and qualifications you will need to succeed in this role before applying below. San Francisco, CA (Remote Eligible – US Only) $230K–$280K base + equity Are you ready to lead the design and build of a world-class data platform from the ground up? A high-growth, product-led tech company is looking for a Principal Software Engineer to lead the buildout of a modern, scalable data platform from the ground up. If you’re excited about solving massive data challenges and shaping the infrastructure that supports real-time analytics and AI/ML at scale, this role is for you. As the most senior technical IC on the Data Platform team, you'll partner with leadership across Engineering, Product, Security, and Compliance to design a low-latency, cloud-native data architecture using best-in-class tools like Kafka, Iceberg, ClickHouse, Tinybird, and Snowflake. Why this role? Join a growing Data Platform team Own the technical vision and architecture end-to-end Tackle petabyte-scale data challenges and real-time streaming use cases Work with a cutting-edge tech stack (Kafka, Iceberg, ClickHouse, Snowflake, etc.) Drive platform evolution to support AI/ML and company-wide analytics What You’ll Do Design and build a next-gen data platform to power product and internal use cases Architect for batch + streaming, scalability, fault tolerance, and low latency Lead data modeling, warehousing, governance, and ingestion best practices Champion engineering excellence and mentor senior engineers Align technical decisions with long-term business strategy Optimize for performance, cost, and resiliency in a modern cloud environment What We’re Looking For 8+ years of experience in data engineering or platform architecture 5+ years at the Principal Engineer level or equivalent Deep expertise with Kafka (and its ecosystem), streaming data systems Strong experience with ClickHouse, Iceberg, Snowflake, or similar tools Cloud-native architecture expertise (AWS, GCP, or Azure) Track record of designing data systems for compliance and governance Experience scaling systems to support petabyte-level workloads Excellent communication, collaboration, and leadership skills Bonus: Experience enabling AI/ML platforms or preparing for IPO-scale growth Seniority level Seniority levelMid-Senior level Employment type Employment typeFull-time Job function IndustriesTechnology, Information and Media and Data Infrastructure and Analytics Referrals increase your chances of interviewing at Harnham by 2x Inferred from the description for this job Medical insurance Vision insurance 401(k) Pension plan Get notified about new Software Engineer jobs in San Francisco Bay Area . Software Engineer (L5) - Open Connect Platform United States $100,000.00-$720,000.00 2 days ago Software Engineer Intern/Co-op (Fall 2025)Software Engineer Internship (12 months) San Francisco, CA $40,000.00-$100,000.00 4 hours ago San Francisco, CA $150,000.00-$175,000.00 1 month ago San Francisco, CA $150,000.00-$190,000.00 3 weeks ago Santa Clara, CA $128,000.00-$150,000.00 1 day ago Software Engineer, Python - AI Training (Freelance, Remote) San Francisco, CA $175,000.00-$250,000.00 1 month ago Sunnyvale, CA $80,000.00-$120,000.00 4 days ago Alameda, CA $120,000.00-$160,000.00 3 months ago Santa Clara, CA $80,000.00-$155,000.00 1 month ago Software Engineer, SQL - AI Training (Freelance, Remote)Software Engineer - AI Training (Freelance, Remote) We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.

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