Staff Core Data

We are hiring a Staff Core Data Engineer to set the direction for how Mentimeter's products define, emit, and evolve data. This is a senior, hands-on systems role focused on product data semantics, canonical events, and architectural intent. Like every Staff role at Mentimeter, the leverage comes through teams: you define the patterns, guardrails, and decision frameworks, and work hands-on with the teams that carry them into production. The role is cross-cutting by design. While reporting into Engineering, the mandate spans Product, Data Platform, Analytics, AI, and GTM.

This role exists to turn Mentimeter's product activity into a strategic asset by establishing Core Data as the connective tissue between products, insights, and decisions. This role does not run analytics or platforms. It defines meaning, standards, and direction.

What you'll do

• Establish and evolve Core Data as a first class domain at Mentimeter, defining how product signals are captured, trusted, and turned into insights and decisions across the company
• Act as the founder and steward of Canonical Domain Events, ensuring they become the shared language between products, analytics, and decision making
• Define data contracts at emission, ensuring signals are consistent, trustworthy, and reusable
• Shape architecture intent for how product signals flow into analytics, AI, recommendations, and GTM systems further downstream
• Work closely with product and engineering teams to ensure features are designed with learning and signal quality in mind
• Enable governance through design. Clear models, strong defaults, guardrails, and explicit tradeoffs rather than process or policing
• Act as the Staff-level reference point for Core Data design across the company, bringing your craft into the teams doing the work rather than building beside them
  
  

Where we are today

• In-product events already stream through Redpanda into ClickHouse, giving us interaction-level product signals in near real time
• Event schemas are versioned from the start. You will be a part of how they evolve: compatibility, deprecation, and contracts downstream consumers can trust
• Redpanda and ClickHouse are the substrate, not the job. The platform is in place so you can help work on semantics, standards, and direction
  
  

Success criteria

• Mentimeter shifts away from treating a single database as truth, instead grounding decisions in shared, trusted signals expressed through Canonical Domain Events
• New products and features natively emit Canonical Domain Events as part of normal development
• Core Data shortens the loop between product behavior and product decisions
• Teams design, emit, and evolve events autonomously within shared guardrails. Core Data creates leverage, not dependency on one person
  
  

We believe you have

• 8+ years of experience designing and owning data-heavy systems in product-led companies
• You work in learning loops: clarify outcome, ship, observe, learn. Impact and insight over output
• Strong systems thinking and comfort reasoning about boundaries, contracts, and long-term evolution
• Hands-on technical credibility. You can read, write, and reason about production code and data models
• Experience working close to product teams, shaping instrumentation and learning loops at the source
• Ability to translate complex systems into clear models others can follow
• Comfort operating in ambiguity and driving clarity through action
  
  

What this role is not

• Not a reporting or analytics role
• Not a data platform operations role
• Not a Martech or GTM tooling role
• Not a people-management-first role
  
  

Not required

Swedish is not required (as daily work is carried out in English and the Mentimeter team currently boasts 50+ different nationalities)