Senior Backend Engineer, APIs & Security (Go)

Webhosting; Colorado; Hybrid; USD 181,000 - 217,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Equity program

401(k) with company match

Hybrid work model

Paid holidays and generous time off

Job summary

Fastly is seeking a Senior Backend Software Engineer (APIs), Security Products, to design and deliver public APIs and robust backend services in Go. You will work with cross-functional teams to ship features, participate in on-call rotations, and mentor engineers, in a hybrid model across US offices.

The role emphasizes scalable API design, collaboration with security researchers, and building a reliable platform that supports Terraform/CI/CD workflows.

Qualifications

• Experience designing public-facing APIs and backend services.
• Proficiency in Go programming language.
• Experience shipping API-driven features and ensuring reliability.

Responsibilities

• Design, ship, and own public-facing APIs and backend services in Go—from design to production rollout and on-call support.
• Collaborate with frontend engineers, product managers, and security researchers to deliver end-to-end customer experiences.
• Mentor and grow other engineers through code reviews and pairing.

Skills

Go

API design

Backend services

On-call rotation

Cross-functional collaboration

Job description

Fastly is seeking a Senior Backend Software Engineer (APIs), Security Products, to design and deliver public APIs and robust backend services in Go. You will work with cross-functional teams to ship features, participate in on-call rotations, and mentor engineers, in a hybrid model across US offices.

The role emphasizes scalable API design, collaboration with security researchers, and building a reliable platform that supports Terraform/CI/CD workflows.