Senior Security Engineer, Application Security

Angi; United States; Remote; USD 150,000 - 225,000; Full time

Benefits offered by this job

Year-end bonus

Equity package

Medical, dental, vision

Flexible vacation

401K with company match

Job summary

Angi is seeking an experienced Security Engineer to own end-to-end security across cloud infrastructure and applications, including AI-native features. You’ll enforce PCI/OWASP controls, build secure tooling, and mentor teams. Remote work is supported for applicants in aligned time zones.

A strong background in AWS, IaC, and security tooling is required. You will collaborate with product and engineering teams to design secure systems, perform threat modeling, and drive security architecture

Qualifications

• 5+ years in security engineering across at least two domains (app, cloud infra, or enterprise security).
• Hands-on with AWS and IaC; read and contribute to code (Kotlin, NextJS, Python, Ruby, Scala, or Swift).
• Strong grasp of OWASP Top 10 and remediation approaches; experience with OAuth/OIDC/SAML.
• Familiarity with AI/LLM security and prompted injection risks.
• Proficient in security tooling and threat modeling; able to guide design reviews.

Responsibilities

• Own security initiatives end-to-end across cloud infra hardening and app security.
• Manage compliance-related controls (PCI DSS, ASV scanning, network reviews, tamper monitoring).
• Deploy and tune infrastructure protections against exploits, account takeovers, DoS.
• Drive security architecture for Angi's AI agent products and integrations.
• Review RFCs/PRDs with a security lens and partner with product/engineering teams.
• Build tooling to make secure paths the easy path for engineers.
• Mentor engineers and address incident patterns and tooling gaps.
• Participate in 24/7 on-call rotation for incident response.
• Integrate AI-driven tooling into InfoSec workflows and evaluate AI outputs.

Skills

AWS

Terraform / IaC

Threat modeling

OWASP Top 10

Security architecture

AI security tooling

Strong written comms

Tools

Snyk

Veracode

Fortify

Qualys

BurpSuite

OWASP ZAP

Kubernetes

Job description

For over 30 years, Angi has powered the future of the home services industry, creating an environment where homeowners and pros benefit from more jobs done well.

For homeowners, our platform is a reliable way to find skilled pros. For pros, we're a reliable business partner who helps them find the winnable work they want, when they want. For employees, we're an amazing place to call home. We can't wait to welcome you.

Angi at a glance:

• Founded in 1995 as Angie’s List and rebranded in 2021

• Global company with 9 brands in 8 countries and employees worldwide

• Homeowners have turned to us for 300 million home projects and counting

About the team:

At Angi, security is woven into everything we build, from PCI-scoped payment flows to the AI agents now handling homeowner / pro conversations and scheduling end-to-end. The team is small and the surface is not: cloud infrastructure, applications, and a growing set of agentic AI products. You'll own security architecture and execution across all three.

While this is a remote position, we are a global company and are looking for applicants located in eastern or central time zones to align with our team's working hours.

What you’ll do:

• Own security initiatives end to end across cloud infrastructure hardening and application security, including work that spans several sprints and arrives ambiguous.

• Own the technical controls that InfoSec retains within compliance frameworks such as PCI DSS (e.g., ASV scanning, network security control reviews, tamper-detection monitoring).

• Deploy and tune the infrastructure protecting Angi's applications from exploitation, account takeover, and denial of service.

• Drive security architecture and threat modeling for Angi's AI agent products (voice/chat agents with calendar and account access).

• Review RFCs, PRDs, and MRs from a security lens, and partner directly with product/engineering teams shipping AI-native features. You will be in the room when these are designed, not brought in after the fact.

• Build the tooling and frameworks that make the secure path the easy path for Angi's engineers - paved roads, not policy documents.

• Mentor engineers within and across teams, and improve the status quo where you find it - recurring incident patterns, tooling gaps, process debt.

• Actively participate in all facets of the incident response lifecycle by participating in a 24/7 on-call rotation.

• Continuously evaluate and integrate AI-driven tooling into InfoSec's own workflows. You're expected to use AI coding/security assistants daily, not just secure them for others.

Who you are:

• 5+ years in security engineering, spanning at least two of: application security, cloud/infrastructure security, or enterprise security.

• Hands-on with AWS and infrastructure-as-code (Terraform, CloudFormation, or equivalent); comfortable reading and contributing to product service code (Kotlin, NextJS, Python, Ruby, Scala, or Swift are preferred).

• Sound build-versus-buy judgment with no allergy to either answer. You reach for what exists when it fits, and you're comfortable wrapping, extending, or replacing it when it doesn't.

• Fluent in the OWASP Top 10 and how each is actually remediated, and in the authentication and authorization standards Angi runs on (OAuth, OIDC, SAML).

• Some level of exposure to LLM/agentic system security (prompt injection, agent identity, data exfiltration via AI systems).

• A daily, fluent user of AI-assisted coding/security tools. You are able to speak concretely about how you direct and verify AI output.

• Strong written communication: you'll write threat models and give written feedback on other people's design docs and merge requests regularly.

• Comfort executing the technical side of a compliance framework (PCI, SOX, or similar) - vulnerability scanning, control reviews, tamper detection is preferred.

• Hands-on experience in the tool categories this work runs through - static analysis (Snyk, Veracode, Fortify), infrastructure vulnerability scanning (Qualys, Tenable, Rapid7), and penetration testing tooling (BurpSuite, OWASP ZAP) is preferred.

• Container and Kubernetes experience is preferred.

Compensation & Benefits

• The base salary band for this position ranges from $150,000 - $225,000, commensurate with experience and performance. Compensation may vary based on factors such as geographic location.

• This position will be eligible for a competitive year end performance bonus & equity package.

• Full medical, dental, vision package to fit your needs.

• Flexible vacation policy; work hard and take time when you need it.

• Pet discount plans & retirement plan with company match (401K).

• The rare opportunity to work with sharp, motivated teammates solving some of the most unique challenges and changing the world.

We value diversity

We know that the best ideas come from teams where diverse points of view uncover new solutions to hard problems. We welcome and value individuals who bring diverse life experiences, educational backgrounds, cultures, and work experiences.

Our hiring process may utilize artificial intelligence (AI) tools to assist in candidate screening and assessment. Our AI tools are designed to complement, not replace, human decision-making.

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