Backend API Engineer - Remote, Privacy‑First Vault

Sequester; United States; Remote; USD 120,000 - 160,000; Full time

Benefits offered by this job

Remote-friendly

Job summary

Sequester is seeking a backend engineer to build a privacy-first encrypted vault for personal photos and videos. You will implement authentication, upload orchestration, billing hooks, and account lifecycle flows within a PHP/CodeIgniter stack.

Design REST endpoints, enforce security and input validation, and integrate payment, email, and storage providers. You will contribute structured logs and metrics to support and SRE teams.

Qualifications

• Experience building APIs used by real consumers.
• Strong SQL skills with transactional integrity.
• Security habits: parameterized queries, secrets hygiene, least-privilege DB users.
• Comfort with PHP or willingness to ramp up in a CodeIgniter codebase.

Responsibilities

• Design and ship REST endpoints and internal RPC services for consumer-facing functionality.
• Enforce authentication, rate limits, and input validation on every public route.
• Integrate payment, email, and storage providers with idempotent, retry-safe patterns.
• Write schema migrations and one-off data fixes that stay backward compatible.
• Emit structured logs and metrics to aid Support and SRE debugging.

Skills

API design

SQL & transactions

Security best practices

PHP / CodeIgniter

Job description

Sequester is seeking a backend engineer to build a privacy-first encrypted vault for personal photos and videos. You will implement authentication, upload orchestration, billing hooks, and account lifecycle flows within a PHP/CodeIgniter stack.

Design REST endpoints, enforce security and input validation, and integrate payment, email, and storage providers. You will contribute structured logs and metrics to support and SRE teams.