F5 Tech Stack

Application delivery and security platform for hybrid, multicloud infrastructure

IT Services and IT Consulting Seattle, Washington 5,001–10,000 employees Public Company

F5 operates a large, public-company engineering organization (5k–10k headcount, 172 active engineering roles) actively building distributed cloud services, edge computing, and AI security applications. The stack—Rust, Go, C/C++, Kubernetes, Docker, gRPC—reflects infrastructure-grade systems work; adoption of WebAssembly, Kubernetes across cloud providers (AWS, Azure, GCP), and ISO 27001 certification signals a push toward containerized, standards-compliant deployments at scale. Pain-point patterns (system reliability, scalability across distributed services, pipeline acceleration) and projects (BIG-IP Kubernetes platform, CI/CD improvements) indicate engineering effort concentrated on modernizing legacy load-balancing and application-delivery components for cloud-native architectures.

Tech Stack 200 technologies

Core StackRust Salesforce VMware Linux Go Python Kubernetes Docker gRPC Java AWS NGINX JavaScript Selenium Cypress Wireshark Red Hat OpenSSL DNS TCP/IP HTTP CDN AWS WAF UNIX C/C++ KVM Protocol Buffers Azure GCP F5 BIG-IP+170 more

AdoptingKubernetes AWS WebAssembly ISO 27001 Azure GCP Coupa Artifactory+7 more

What F5 Is Building

◆Challenges

Improving system reliability
Mitigating risks
Performance and scalability
Scalability across distributed cloud services
Data security compliance
Ensuring continuous protection and availability
Competitive threats
Pipeline acceleration
Improving forecasting accuracy
Improving response times

▲Active Projects

Distributed cloud platform services
Ai security web application
Infrastructure tooling for firewall components
Identity provider migrations & consolidation
Edge computing platform
Automated performance tests
Gpt internal ai application
Firewall module development
Bigip kubernetes platform
Ci/cd environment improvement

Hiring Activity

Accelerating430 roles · 200 in 30d

Department

Engineering

172

Sales

107

Security

Support

Product

Marketing

Data

Seniority

Senior

238

Mid

Principal

Manager

Director

Intern

Junior

Lead

Notable leadership hires: Transformation Delivery Lead

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About F5

F5 delivers application delivery and security infrastructure serving large enterprises across on-premises, cloud, and edge environments. The core product—the F5 Application Delivery and Security Platform (ADSP)—integrates load-balancing, web acceleration, application firewalls, and API security. The company operates as a public enterprise with 25+ years of installed base in network infrastructure; current project activity centers on distributed cloud platform services, Kubernetes integration, identity provider consolidation, and AI-driven security applications. Hiring is distributed across 25+ countries with heavy weighting toward engineering (172 roles) and sales (107 roles), consistent with a mature, geographically dispersed customer base.

HeadquartersSeattle, Washington

Company Size5,001–10,000 employees

Hiring MarketsUnited States, United Kingdom, Saudi Arabia, Poland, Israel, Japan, India, Singapore

Frequently Asked Questions

What is F5's tech stack?

F5 uses Rust, Go, C/C++, Python, Java, Kubernetes, Docker, and gRPC as core languages and infrastructure tools. NGINX, F5 BIG-IP, VMware, AWS, Azure, GCP, Salesforce, and security tools like OpenSSL, Wireshark, and AWS WAF are in active use. WebAssembly and ISO 27001 are recent adoptions.

Where is F5 headquartered?

F5 is headquartered in Seattle, Washington. The company is publicly traded on NASDAQ (ticker: FFIV) with employees and hiring activity spanning the United States, United Kingdom, Saudi Arabia, Poland, Israel, Japan, India, and 15+ additional countries.