Senior Software Engineering

About StackAI StackAI is the enterprise AI transformation platform for organizations with regulated and complex operations. It gives teams one place to build, deploy, govern, and scale AI agents that can analyze data, connect to business systems, and carry out business-critical workflows.Those agents need to work wherever an enterprise’s data and systems live. StackAI supports more than 100 enterprise integrations and can be deployed in our multi-tenant cloud, in a customer’s VPC, or on-premises—allowing organizations to bring AI into sensitive operational work while retaining control over where their agents and data run.StackAI is an Asana company and continues to operate as its own product and brand.We are looking for a senior Python engineer who has built security-critical product systems.You will join the Core Engineering team and build the systems that determine how StackAI encrypts customer data, manages keys and signatures, handles PHI and PII, protects customer credentials, and enforces tenant and authentication boundaries.We’re looking for an engineer who brings strong security judgment to the software they build: someone who can move between architecture and implementation, reason carefully about trust boundaries, and turn security requirements into reliable product capabilities.This is hands-on backend engineering in an existing, fast-moving codebase. You will write production Python and take projects from initial investigation and design through implementation, migration, rollout, and operation.Design and evolve how customer data is encrypted, how keys are scoped and rotated, and how these systems work across hosted, VPC, and on-premises deployments.Protect sensitive data. Build the controls that detect, transform, and safely handle PHI, PII, and other sensitive data across workflows, connectors, model calls, logs, and storage.Secure customer credentials. Protect the credentials and tokens customers provide to StackAI, from storage and access control through their use at runtime.Create shared security foundations. Build Python services, libraries, and APIs that make security-critical behavior consistent and straightforward for other engineers to use.4+ years of experience building and operating production backend systems.~ Strong professional experience with Python in a substantial production codebase.~ Sensitive-data processing~ Secure storage and runtime use of customer credentialsExperience changing critical systems without disrupting existing customers or making previously stored data inaccessible.We are looking for a strong software engineer with meaningful depth in security-critical systems and the ability to take ownership of adjacent problems.We care more about your ability to understand sensitive-data requirements and turn them into reliable product behavior.Bonus pointsExperience with HashiCorp Vault, cloud KMS products, HSMs, envelope encryption, or key rotationMulti-tenant SaaS products handling sensitive customer dataExperience in healthcare, payments, identity, financial infrastructure, or another security-sensitive domainSelf-hosted, VPC, on-premises, or air-gapped deploymentsAI-agent, LLM, or connector-based application architectureThe Core Engineering team owns the systems at the center of StackAI. The work moves quickly, and decisions are made close to the implementation. We value engineers who can make sound trade-offs under ambiguity, ship durable systems, and continue improving them as the product and its requirements evolve.As part of Asana, you will be able to draw on established security and infrastructure teams when a problem crosses application and platform boundaries. This role remains embedded in Core Engineering, with direct ownership of the product systems you build.