Platform Engineer

Clarify
Municipality of Madrid, Spain
11 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English
Experience level
Senior

Job location

Municipality of Madrid, Spain

Tech stack

API
Artificial Intelligence
Architectural Patterns
Databases
Database Design
Software Debugging
Distributed Systems
PostgreSQL
Node.js
Open Source Technology
Query Optimization
Next.js
Service Design
TypeScript
React
Large Language Models
Reliability of Systems
Integration Frameworks
Data Pipelines

Job description

You'll join Clarify as a Platform Engineer, building the foundational systems that power our AI-native CRM. You'll work directly with founders to architect critical infrastructure-from data pipelines and integration frameworks to developer tooling and system reliability. This is a role for someone who has built scalable platforms and is excited to establish best practices from the ground up with modern tooling and AI-first principles. What you'll do

  • Build core platform systems: data pipelines, integration framework, API infrastructure, and developer tooling.
  • Design scalable data models and storage strategies for complex CRM workflows and AI capabilities.
  • Establish observability, monitoring, and performance standards as we scale to thousands of customers.
  • Create platform standards: API patterns, service design, testing frameworks, and deployment practices.
  • Own critical technical decisions: infrastructure choices, architectural patterns, and technology selection.
  • Partner with founders on technical strategy, balancing innovation with pragmatic execution.

Requirements

  • 6+ years building distributed systems and platform infrastructure.
  • Strong expertise in database design, query optimization, and managing data at scale.
  • Proficient in TypeScript, Node.js, React, Next.js, and Postgres.
  • Experience building developer-facing infrastructure: APIs, SDKs, or internal tooling.
  • Pragmatic technical decision-making: balancing technical excellence with business impact.
  • Strong operational instincts: monitoring, alerting, debugging, and incident response.
  • Excellent communication-translate complex technical concepts for various audiences.
  • Startup experience preferred-you've built 0-to-1 products or scaled through hypergrowth.
  • Bonus: Experience with AI/ML infrastructure, LLM APIs, or vector databases.
  • Bonus: Open source contributions or technical writing demonstrating expertise.

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