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Lattice System Design Interview: Complete Preparation Guide

Prepare for Lattice's system design interview — covering performance management systems, evaluation criteria, tips, and a step-by-step roadmap.

22 minUpdated Apr 25, 2026
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Interview format

4 rounds total.

System Design50 min

Design a people management or performance review system. Interviewers focus on data modeling, workflow design, and building configurable products for diverse company cultures.

Coding45 min

One or two algorithm problems at medium difficulty. Lattice values readable, well-tested code over clever solutions.

Technical Collaboration45 min

Pair on a technical problem or discuss a past project. Interviewers assess how you collaborate, explain decisions, and incorporate feedback.

Values & Culture45 min

Behavioral round focused on Lattice's values: act with intention, raise the bar, share the mic, and make it happen.

Commonly asked systems

Design a performance review cycle system with configurable workflowsDesign an OKR and goal-tracking platformDesign an employee engagement survey system with real-time analyticsDesign a 360-degree feedback collection and aggregation systemDesign a people analytics dashboard with custom reportingDesign a continuous feedback and one-on-one meeting trackerDesign a compensation review and calibration tool

What they evaluate

Product ThinkingHigh

Can you think about the end user (HR leaders, managers, employees) and design systems that are configurable yet intuitive?

Data ModelingHigh

Performance management involves complex relationships: review cycles, goals, feedback, and organizational hierarchies. Can you model this cleanly?

ConfigurabilityMedium-High

Every company runs reviews differently. Can you design a system that is flexible enough to support diverse workflows without becoming unwieldy?

Technical CommunicationMedium

Can you explain your design clearly, incorporate feedback gracefully, and collaborate effectively during the interview?

ScalabilityMedium

Can your design handle thousands of companies each running concurrent review cycles with different configurations?

Tips

  • ▸Think about configurability as a core feature — Lattice's customers configure review cycles, question templates, and approval flows to match their culture
  • ▸Design with multiple user personas in mind: employees filling out reviews, managers calibrating ratings, HR admins configuring workflows
  • ▸Discuss state machine patterns for review cycles — reviews have distinct phases (setup, launch, submission, calibration, sharing) with strict transitions
  • ▸Show awareness of data sensitivity: performance reviews and compensation data require strict access controls and audit logs
  • ▸Talk about real-time analytics: how to compute engagement scores, completion rates, and sentiment analysis efficiently
  • ▸Mention caching strategies for dashboard-heavy workloads — HR admins and managers check dashboards frequently during review cycles
  • ▸Discuss how to handle deadline-driven traffic spikes when review submission deadlines approach
  • ▸Prepare examples of building user-facing products where you balanced flexibility with simplicity

Preparation roadmap

Week 1-2Foundations & Domain
  • ·Review database design patterns: relational modeling, hierarchical data, and polymorphic schemas
  • ·Learn about performance management: review cycles, OKRs, 360 feedback, and calibration processes
  • ·Study workflow engine design: state machines, configurable rules, and event-driven triggers
Week 3-4Core System Designs
  • ·Design a configurable performance review cycle system end-to-end
  • ·Design an OKR tracking platform with cascading goals and progress rollup
  • ·Practice designing analytics dashboards with pre-computed metrics and real-time filtering
Week 5-6Advanced Topics
  • ·Design a survey system with real-time sentiment analysis and anonymity guarantees
  • ·Study access control patterns for sensitive HR data: row-level security, attribute-based access
  • ·Design a notification and reminder system for review cycle deadlines
Week 7-8Mock Interviews & Polish
  • ·Complete at least 3 mock system design interviews with product-focused scenarios
  • ·Practice explaining configurable workflow architectures within time constraints
  • ·Prepare behavioral stories demonstrating product empathy and raising the bar on quality
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