# Senior Application Security Engineer
**Company:** [Datadog](https://hotfix.jobs/companies/datadog)
**Location:** New York, NY
**Salary:** $187K-$240K
**Skills:** Go, Python, Distributed Systems, Api Security, Mtls, Api Gateways, Zero Trust Architectures, Policy-Based Systems, Observability, Telemetry
**Posted:** 2026-04-29
> Builds scalable platform-level security controls and enforcement layers for distributed systems at Datadog. Requires strong software engineering background in Go/Python, experience with security systems like auth/authz, and designing secure infrastructure used by engineering teams.
## Job Description
## What You’ll Do

- Design and implement secure-by-default platform controls, improving the security of our APIs and services.
- Build and evolve security systems and enforcement layers (e.g., gateways, middleware, policy engines) that operate at scale across distributed systems
- Define and standardize security patterns that can be broadly adopted across services, reducing the need for custom implementations
- Integrate security controls into developer workflows, infrastructure, and platform abstractions to drive high adoption
- Identify recurring security risks and translate them into reusable, enforced platform primitives
- Partner with engineering teams to influence system design and build out security that is embedded early in the development lifecycle
- Contribute to threat modeling and security reviews where needed, with a focus on turning findings into systemic improvements
- Leverage application telemetry (logs, traces, metrics) to assess security posture and drive improvements

## Who You Are

- You have a strong background in software engineering and experience building distributed systems (**Go** or **Python** preferred)
- You have experience designing and implementing security controls or systems (e.g., authentication, authorization, **API security**, or infrastructure security)
- You have built shared infrastructure, internal platforms, libraries, frameworks, or enforcement mechanisms used by other engineering teams.
- You understand how modern systems handle identity, communication, and trust boundaries (e.g., **mTLS**, service identity, **API gateways**)
- You are comfortable operating in ambiguous environments and working across new problem spaces
- You make pragmatic security decisions that balance risk, usability, and scalability
- You are driven to not only identify security issues but also design and implement solutions that prevent them at scale

## Nice to Have

- Experience with **zero trust architectures** or service-to-service security models
- Familiarity with **policy-based systems** or large-scale access control models
- Experience working with untrusted or non-deterministic workloads (e.g., sandboxing, agent-based systems)
- Experience using **observability** and telemetry to drive security insights and adoption
**Apply:** https://hotfix.jobs/jobs/senior-application-security-engineer-at-datadog-d699f232-106c-48bf-b111-72b3e58bccc3
**Canonical:** https://hotfix.jobs/jobs/senior-application-security-engineer-at-datadog-d699f232-106c-48bf-b111-72b3e58bccc3