About the Core Data Engineering Team :

The Core Data Engineering team builds and owns the foundational data assets that power nearly every 6sense product and GTM workflow. This includes company and people data, identity graphs, enrichment pipelines, and large scale signal ingestion systems.

Our work sits at the intersection of distributed systems, data correctness, and business impact.

We’re looking for a Staff Data Engineer to lead the design and evolution of our most critical data platforms.

This is a senior individual contributor role for engineers who enjoy owning complex systems end‑to‑end, influencing technical direction across teams, and solving problems where correctness, scale, and reliability really matter.

You’ll work on problems that don’t have obvious answers and your decisions will shape how data flows through 6sense for years to come.

What You’ll Do :

Lead Large‑Scale Data Systems :

• Design, build, and evolve high‑throughput batch and streaming data pipelines that process billions of records.
• Own core datasets that power product features, analytics, and ML systems.
• Build systems that handle enrichment, deduplication, identity resolution, and confidence scoring at scale.

Drive Architecture & Technical Direction :

• Define long‑term architecture for foundational data platforms.
• Lead complex, multi‑quarter initiatives such as platform migrations, major refactors, and new data foundations.
• Balance data correctness, freshness, cost, and performance in real‑world production systems.

Ensure Reliability & Data Quality :

• Own SLAs/SLOs for data freshness, accuracy, and completeness.
• Design data quality frameworks, reconciliation mechanisms, and observability for critical pipelines.
• Lead root‑cause analysis and long term fixes for production issues.

Collaborate Across the Company :

• Partner with Product, Analytics, Data Science, Platform, and GTM teams to translate business needs into scalable data solutions.
• Act as a technical point of contact for third party data integrations and vendors.

Raise the Engineering Bar :

• Mentor senior engineers and influence technical standards across the org.
• Lead by example in design reviews, operational ownership, and incident response.
• Help shape engineering best practices around scalability, reliability, and maintainability.

What We’re Looking For :

Experience :

• 10+ years of experience building backend or data intensive systems.
• Proven ownership of mission critical data platforms in production.
• Experience operating at Senior or Staff engineer scope.

Technical Skills :

• Strong programming skills in Python and SQL.
• Deep experience with big‑data and streaming systems such as Spark, Kafka, Flink, Hive, Trino/Presto.
• Solid understanding of distributed systems, data consistency, and fault tolerance.
• Hands‑on experience with AWS based data infrastructure.

Engineering Mindset :

• Comfortable working in ambiguity and making high impact technical decisions.
• Strong intuition for data modeling, system design, and long term maintainability.
• Ability to influence teams without formal authority.

AI‑Enabled Development :

• Experience using AI tools (e.g., Copilot, ChatGPT, Cursor) to improve productivity in design, coding, and debugging.
• Strong judgment on validating correctness and performance.

Nice to Have :

• Experience with company or people data, identity graphs, or enrichment pipelines.
• Exposure to data privacy, compliance, or governance at scale.
• Experience supporting AI/ML driven product features.

Why This Role Matters :

The systems you build will directly impact:

• Product accuracy and customer trust
• GTM targeting and revenue outcomes
• The scalability of 6sense’s AI‑driven platform

You won’t just ship features, you’ll shape the foundation.

One‑Line Summary :

• Own and evolve large scale, business critical data platforms that power 6sense’s AI‑driven products.