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About Us At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties for customers…
Designs and builds globally distributed systems in Go and Rust to enforce geographic data boundaries across Cloudflare's edge network, ensuring compliance and reliability at massive scale.
Senior Product Manager at Cloudflare designs and delivers enterprise-scale cloud solutions, focusing on API standards and Terraform SDK integration to improve Internet infrastructure for large customers.
Systems engineer at Cloudflare building and operating HTTP/TLS termination systems that handle roughly a quarter of Internet traffic, migrating core infrastructure from NGINX to a next-gen Rust-based proxy and improving protocol performance (QUIC, MASQUE, ECH) while contributing to open standards. Hybrid role based in London, Lisbon, or Austin.
Senior engineer on Cloudflare's Security Platform team builds and operates internal secrets management, PKI, and machine/workload identity systems running across the company's global network, including on-call incident response. Requires distributed systems development, Linux administration, and hands-on security implementation skills (Go/Python, Vault, cryptography).
Senior architect role defining the end-to-end architecture of Cloudflare's new public Certificate Authority: trust hierarchies, HSM-backed key management, ACME issuance at Internet scale, Certificate Transparency, revocation, and the migration path from X.509 to post-quantum Merkle Tree Certificates. A hybrid position spanning applied cryptography, Web PKI, and distributed systems security.
Principal Product Manager who will define product strategy, roadmap, and go-to-market for Cloudflare's new public certificate authority — a zero-to-one WebPKI venture covering ACME-first issuance, certificate lifecycle automation, revocation, and Certificate Transparency. Hybrid role based in Austin or London, partnering across engineering, compliance, and sales.
Contract B2B role (up to 183 PLN/h) architecting cybersecurity for embedded automotive systems: requirements/threat analysis, security leadership across software, hardware and manufacturing, and guiding teams on secure design and validation. Core stack: C, embedded platforms/OS, cryptography, and tools like Enterprise Architect, Jira, Polarion.
Xona Space Systems is hiring a Software Engineer to architect and build production-grade ground segment software that cryptographically protects its Pulsar LEO satellite constellation. Day-to-day: implementing crypto modules (TLS, AES-GCM, ECC), key management/IAM, HSM/TPM integration, and secure persistent-memory storage in C/C++ and Python with AWS/Kubernetes security tooling.
Develops embedded and DSP software for wireless-communication System-on-Chips at Sineeng in Tampere — real-time signal-processing algorithms (modem baseband, filtering, synchronization), low-level drivers/HALs, and silicon bring-up — using C/C++/Rust on embedded CPUs, DSP cores, and accelerators.
Tower Research Capital is a leading quantitative trading firm founded in 1998. Tower has built its business on a high-performance platform and independent trading teams. We have a 25+ year track record of innovation…
About the role Bittium SafeMove Comms is a quantum-safe, end-to-end encrypted communications platform for government agencies, defence forces, and critical infrastructure organisations. It covers voice, video, and…
Senior Security Engineer at Kraken (Payward) working on xStocks: owns security audits and questionnaires through remediation, pentests web apps, APIs, services and on-chain components, secures custody/signing workflows (MPC, HSM), and supports incident response, while also contributing TypeScript/Node.js product engineering.
About the role The Technical Account Executive owns qualified opportunities from the first serious client meeting to signature. The role combines enough cryptographic and security depth to lead discovery with a CISO…
Lead MetaMask's application security team across browser extensions, mobile apps, backend services, and smart contracts: set strategy and OKRs, manage a senior team, run threat modelling, secure code reviews, vulnerability management, bug bounty and pen testing, and strengthen the secure development lifecycle. Core stack includes TypeScript, JavaScript, Go, and Solidity.
Amazon is looking for a focused Security Engineer who can take on a leadership role in responding to security issues across the largest cloud provider in the world. The right candidate must thrive in high-pressure…
About Samsung Austin Semiconductor Samsung is a world leader in advanced semiconductor technology, founded on the belief that the pursuit of excellence creates a better world. At Samsung Austin Semiconductor, we are…
Enterprise AI is moving from pilots to production, and the constraint is no longer the model — it's the data. Agents are only as good as what they can sense, trust, and act on in the moment, and real-time,…
One of Inc. 5000's fastest-growing companies with a limitless environment! Davis Unlimited Information Technologies, Inc. (DUIT) wants you! We have immediate openings and are looking for a qualified Software…
About Sandia Sandia National Laboratories is the nation’s premier science and engineering lab for national security and technology innovation, with teams of specialists focused on cutting-edge work in a broad array of…
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