Senior Software Engineer - Encryption & PHI at StackAI (by Asana)

Department: Engineering

Compensation

$248,000 – $282,000/yr

Setup: Hybrid
Location: Coimbatore, Tamil Nadu
Level: senior
Posted: Sep 2, 2026

Description

StackAI is hiring a senior Python engineer to build and operate security-critical backend systems for encryption, key management, PHI and PII handling, credential protection, tenant isolation, authentication, and signing. The role involves end-to-end ownership of production Python services, libraries, APIs, migrations, rollouts, observability, and recovery, with a focus on secure, reliable systems for regulated enterprise workloads.

Required Skills

Python
Encryption
Key management
Applied cryptography
Tenant isolation
Signing and verification
Token handling
Secure storage

Additional Information

Required Previous Experiences: 4+ years of experience building and operating production backend systems
Strong professional experience with Python in a substantial production codebase
Hands-on experience implementing and operating security-critical product systems
Practical knowledge of applied cryptography
Experience changing critical systems without disrupting existing customers or making previously stored data inaccessible
Preferred Qualifications: Experience with HashiCorp Vault, cloud KMS products, HSMs, envelope encryption, or key rotation
PHI or PII detection, redaction, pseudonymization, or tokenization
PKI, certificate systems, or cryptographic signing
Multi-tenant SaaS products handling sensitive customer data
Experience in healthcare, payments, identity, financial infrastructure, or another security-sensitive domain
Self-hosted, VPC, on-premises, or air-gapped deployments
AI-agent, LLM, or connector-based application architecture
Startup or growth-stage product experience
Prior healthcare experience