Principal Software Architect

Stack

Responsibilities

• ▹Architect, develop, and deploy scalable, production-grade services across the core Testlio platform
• ▹Author architectural standards and reference patterns defining domain boundaries and decoupling the codebase into modular services
• ▹Partner with the Director of Engineering on frontend framework consolidation
• ▹Design with security, cost-efficiency, and ISO 27001 expectations at the center
• ▹Integrate secure AI/LLM patterns into customer-facing surfaces with strict operational guardrails
• ▹Advise executive, product, and engineering teams on major technical tradeoffs

Requirements

• ▹15+ years of hands-on software development experience building cloud-native, business-critical platforms
• ▹Advanced mastery of distributed system patterns, data modeling, event-driven design, and database technologies (relational and NoSQL)
• ▹Proven track record designing and migrating application infrastructures from monolithic to modular architectures
• ▹Deep experience establishing enterprise-ready AWS patterns emphasizing high availability, cost optimization, and secure infrastructure
• ▹Strong familiarity with modern full-stack environments: front-end frameworks, scripting languages, CI/CD pipelines
• ▹Practical, production-grade experience deploying AI/ML or LLM-based solutions with observable, safe automation patterns
• ▹Fluency in English with exceptional written and verbal communication, able to present advanced architecture concepts to business leaders

Soft skills

What we offer

• ▹Flexible paid time off: national holidays, personal days, sick days
• ▹Stock options
• ▹$300 annual learning stipend
• ▹Profitable, financially stable company

About the company

Testlio operates a fully managed crowdsourced testing platform powered by its proprietary LeoAI Engine, integrating expert testers into release processes across 600,000+ devices and 150+ countries. Female-founded, with nearly half the team identifying as women, Testlio is built around fully remote, asynchronous work.