📍 London, UK  |  📧 charilaoss@gmail.com  |  🌐 LinkedIn   |  🕸️ Website

🧭 Professional Summary

Tech Lead Software Engineer • Distributed Systems • AWS Serverless Architecture

Tech lead & AWS Certified Software Engineer with 11+ years of experience designing and scaling distributed, event-driven systems across web, mobile, and CRM platforms. Proven track record of leading multi-team initiatives that improve system reliability, developer velocity, and customer engagement. Experienced in building experimentation frameworks, personalisation engines, and large-scale cloud infrastructure. Passionate about pragmatic engineering, mentoring teams, and driving architectural alignment across organisations.

⚙️ Key Technical Areas

• Cloud & Infrastructure: AWS (Lambda, EventBridge, SQS, SNS, ElastiCache, RDS, S3, KMS, Secrets Manager, ECS Fargate), Terraform, Docker
• Backend Engineering: Node.js, TypeScript, GraphQL (Apollo), REST APIs, serverless architectures
• Frontend Engineering: React.js, CSS, headless CMS, analytics & instrumentation
• Testing: Jest, Vitest, Playwright, K6 • unit, integration, E2E, smoke testing
• Data & Integrations: Postgres, DynamoDB, MongoDB, Segment, Reverse ETL pipelines
• Architecture Patterns: Event-driven systems, microservices, orchestration & choreography, Backend for Frontend (BFF), Domain-driven design (DDD)
• Quality & Operations: Datadog, Kibana, CI/CD, logging & monitoring, automated testing
• Leadership: Technical direction, mentoring, cross-team alignment, system design ownership
• Languages: TypeScript, JavaScript (Node.js) • (Working knowledge: Python, Go)

💼 Professional Experience

BEAUTY PIE — Principal Engineer (Promoted from Senior Software Engineer)

London UK, May 2025 — Present