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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Engineer - PKI, Security, Trust Engineering - **Company:** Roku, Inc. - **Location:** Manchester, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Apache HTTP Server, Microsoft Azure, Computer Programming, Software Debugging, Digital Assets, HAProxy, Identity and Access Management, Mobile Application Software, Python (Programming Language), Key Management, Nginx, OAuth, Public Key Infrastructure, X.509, Ansible, Security Assertion Markup Language (SAML), Security Software, Service-Oriented Architecture, Software Engineering, Web Applications, Web Services, SSL Certificate Management, Scripting, Transport Layer Security, Cloud Platform System, Kubernetes, Hashicorp, Terraform, Webhooks, Docker - **Published:** September 10, 2026 - **Apply:** https://www.collegerecruiter.com/job/2840598146-senior-engineer-pki-security-trust-engineering ## About the Role * Passion for cybersecurity with an effective and passionate drive to protect digital assets. * Experience implementing custom, cloud-agnostic IAM at scale * Navigate the complexities of working with consumer products, web apps, and mobile apps * Proficiency in understanding authentication, authorization, and cryptography, with familiarity around modern security standards and best practices. * Proficiency in data modelling of roles, permissions, and capabilities * Experience with OAuth 2.0 nuances, best practices, and shortcomings * Experience securely running and operating web applications, web services, and service-oriented architecture in production environments. * Senior-level Software Engineering experience. * Programming/scripting skills: Shell, Ansible, Go or Python * Experience with SAML * Proven track record of deploying and operating Kubernetes and containers in production. * Experience building, managing, and debugging CI/CD pipelines. * Experience with Infrastructure-as-Code using Terraform * Experience deploying and operating infrastructure in at least one public cloud provider (AWS, GCP, or Azure) * Experience managing PKI/ X.509 certificate infrastructure. * Extensive experience supporting and implementing TLS/SSL certificate management systems * Proficient with Token-based authentication services, Perfect Forward Security (PFS), Apache, Nginx, HAProxy * Solid knowledge of Linux security and system operations. ## Description As a Security Software Engineer, your role involves architecting, designing, and implementing end-to-end security controls to impact the global user base. A key focus is on developing automated, scalable security solutions to enhance efficiency and protect Roku. This position requires expertise in creating and extending security automation tools, including detection and process automation. What you will be doing * Leading the end-to-end process of building out security solutions and controls - from architecting and designing, through to development and implementation * Designing security solutions with an automated and scalable approach (think webhooks and Docker) * Developing and extending OSS security automation tooling. This can range from detection tooling to security process automation, or a fuzzing infrastructure to find bugs * Architecting, designing, and implementing End-to-End Security solutions and controls. Your work will directly impact our global user base * Focusing on Automation. Developing automated, scalable security solutions. Efficiency is key * Administering HashiCorp Vault for secrets management * Performing threat modeling and analysis to identify and mitigate security risks * Managing PKI, TLS, and GPG infrastructure * Applying cryptography and security design principles to cloud environments * Documenting playbooks, procedures, and architecture * Providing subject matter expertise to software development groups to assist in cryptography and key management / authentication API. ## Related Videos - [Keeping applications secure by evolving OAuth 2.0 and OpenID Connect](https://www.wearedevelopers.com/videos/100152-keeping-applications-secure-by-evolving-oauth-2-0-and-openid-connect) - [DevOps at Netflix](https://www.wearedevelopers.com/videos/270-devops-at-netflix) - [Post-Quantum Cryptography: Preparing for Q-Day](https://www.wearedevelopers.com/videos/100179-post-quantum-cryptography-preparing-for-q-day) - [Delay the AI Overlords: How OAuth and OpenFGA Can Keep Your AI Agents from Going Rogue](https://www.wearedevelopers.com/videos/1637-delay-the-ai-overlords-how-oauth-and-openfga-can-keep-your-ai-agents-from-going-rogue) - [Streaming AI Responses in Real-Time with SSE in Next.js & NestJS](https://www.wearedevelopers.com/videos/1630-streaming-ai-responses-in-real-time-with-sse-in-next-js-nestjs) - [Answering the Million Dollar Question: Why did I Break Production?](https://www.wearedevelopers.com/videos/1171-answering-the-million-dollar-question-why-did-i-break-production) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [The Best X (Twitter) Accounts for Developers](https://www.wearedevelopers.com/magazine/294-the-best-x-twitter-accounts-for-developers) - [Dev Digest 138 - Are you secure about this?](https://www.wearedevelopers.com/magazine/486-dev-digest-138-are-you-secure-about-this) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)