Staff Platform Engineer: AI-Powered, Scalable Backend

Sharp Performance Inc.; United States; Remote; USD 150,000 - 190,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Flexible PTO

401(k) with company match

Access to performance coaches

Job summary

Sharp Performance Inc. is hiring a Staff Software Engineer to co-own the core platform that powers our 1-1 coaching marketplace. You will help set technical direction, write a meaningful share of the code, and raise the bar for how squads design, ship, and run software.

This is a senior IC role with platform-level impact, not people management. We are an AI-enabled, remote-first team focused on scaling a Laravel-based backend, with a strong emphasis on reliability, security, and observability.

Qualifications

• 8+ years building and running production backend systems.
• Staff or lead level experience.
• Deep platform engineering: infrastructure, deploy pipeline, and runtime.
• Track record of scaling a system during real growth.
• Strong relational database skills (MySQL or PostgreSQL).
• Hands-on with cloud infrastructure (AWS), containers, IaC, and CI/CD.
• Experience with async and distributed patterns: queues, workers, webhooks, idempotency, retries.
• Clear written communication; design docs and trade-off explanations.

Responsibilities

• Co-own architecture and long-term health of our core platform: a Laravel monolith with its database, API, background jobs, and internal admin tooling.
• Build platform foundations others rely on: stable APIs, contracts, CI/CD, environments, feature flags, observability, and on-call readiness.
• Lead scaling work end to end. Identify bottlenecks in the database, queues, caching, and third-party integrations, and fix them before customers feel them.
• Decide where the monolith should stay a monolith and where a service boundary pays off; write the docs, make the call, perform migrations safely.
• Make the platform agent-ready: well-bounded modules, fast CI, reliable test environments, and safe, auditable access for agents to the evidence they need.
• Harden reliability and security as we grow: multi-tenant data isolation, access controls, audit trails, and SOC 2 readiness.
• Collaborate with C-Squad engineers: review designs and code, mentor, unblock, and keep the squad's output coherent.
• Work with product and other squads on roadmap trade-offs, especially when platform work competes with feature work.

Skills

Backend systems

Staff/Lead level

Product mindset

Written communication

Remote-friendly

Tools

AWS

Containers

CI/CD

PostgreSQL

MySQL

Laravel

PHP

Job description

Sharp Performance Inc. is hiring a Staff Software Engineer to co-own the core platform that powers our 1-1 coaching marketplace. You will help set technical direction, write a meaningful share of the code, and raise the bar for how squads design, ship, and run software.

This is a senior IC role with platform-level impact, not people management. We are an AI-enabled, remote-first team focused on scaling a Laravel-based backend, with a strong emphasis on reliability, security, and observability.