Senior Software Engineer - Platform Security

Posting Open Date:  10/06/2026

Anticipated Posting Close Date*: 01/30/2027

*Job posting may close early due to the volume of applicants.

Senior Software Engineer, Platform Security 

Fastly is seeking a Senior Engineer to represent our Platform Security team, with a specialized focus on Trust and Identity infrastructure. This is a high-impact individual contributor role for a technically exceptional engineer with deep experience in secure platform services at incredible scale.

You will drive the execution of initiatives foundational to Fastly’s internal authentication, identity, and access control systems. This position is ideal for someone who thrives on solving complex problems, guiding architecture, and is passionate about resilience —while keeping systems secure and scalable.

You will help shape Fastly’s internal trust architecture for years to come.

What You'll Do:

• Work alongside peers to define the long-term vision for trust and identity infrastructure and translate it into tangible execution plans aligned with business goals
• Design and implement scalable internal trust solutions such as secrets management, PKI, and authentication services
• Own Complex Challenges: Tackle ambiguous, technically demanding initiatives with multiple stakeholders and organization-wide impactCross-Functional: Partner deeply with Product, Security, Compliance, and other Engineering teamsImpact Management: Proactively identify potential situations that could negatively affect the business or customers and develop strategies to mitigate these risks before they escalate.
• Promote Engineering Excellence: Establish and evangelize technical standards, code quality, reliability, and operational maturity

What We're Looking For: 

• 5+ years of experience in a technical capacity as an individual contributorTeam player in areas such as Privileged Access Management, workload identity management, LDAP, secrets management, or trust systems
• Strong systems engineering background with deep experience in Linux, networking, and distributed systems
• Demonstrated expertise in modern programming languages (e.g., Go, Python, Rust) and infrastructure tooling (e.g., Terraform, Vault, Consul, Chef)
• Passionate about demos, feedback-driven work
• Excellent written and verbal communication skills, with the ability to clearly articulate complex technical concepts for varying audiences and produce clear and comprehensive documentation
• A collaborative mindset with experience working across cross-functional teams, fostering a culture of respect, knowledge sharing and innovation influencing technical decisions at the org level

We’ll be super impressed if you have experience in any of these:

• Implementing zero-trust architectures or identity-aware access proxies
• Designing scalable secrets lifecycle management workflows
• Working with PKI and certificate automation at scale
• Contributing to open source identity or security tooling
• Experience in cutting edge technologies (e.g. SPIFE/SPIRE, modern PAM tooling) 

This position will require you to be available during core business hours. It will also require occasional nights and weekends as necessary to support any on-call coverage.

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This position is also open to Hybrid And Remote Work Locations.

The preferred locations for this position are:

• San Francisco, CA
• New York, NY
• Denver, CO

Fastly currently embraces a largely hybrid model for most roles which allows employees flexibility to split their time between the office and home.  

There is a strong preference for Hybrid near a local office.  However, we may be willing to consider remote candidates within the US.

This position may require travel as required by your role or requested by your manager.

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SF / LA Fair Chance Ordinance Statement

Pursuant to the San Francisco Fair Chance Ordinance and the Los Angeles Fair Chance Initiative for Hiring Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

Salary: 

The estimated salary range for this position is $181,220- $217,464

Starting salary may vary based on permissible, non-discriminatory factors such as experience, skills, qualifications, and location.

This role may be eligible to participate in Fastly’s equity and discretionary bonus programs.

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Benefits: 

We care about you. Fastly works hard to create a positive environment for our employees, and we think your life outside of work is important too. We support our teams with great benefits that start on the first day of your employment with Fastly. Curious about our offerings? 

We offer a comprehensive benefits package including medical, dental, and vision insurance. Family planning, mental health support along with Employee Assistance Program, Insurance (Life, Disability, and Accident), a Flexible Vacation policy and up to 18 days of accrued paid sick leave are there to help support our employees. We also offer 401(k) (including company match) and an Employee Stock Purchase Program. For 2026, we offer 12 paid local holidays, 12 paid company wellness days.

AI Statement

To ensure a fair and equitable interview process for everyone, the use of AI technologies—including real-time transcription tools, automated scripts, AI copilots, or external assistants—is strictly prohibited during the interview process unless explicitly authorized by the company in advance. Unauthorized use of AI tools may result in disqualification.