Keyless · 1 month ago
Core Engineer
United States
Full-time
Remote
Mid, Senior LevelKeyless is on a mission to create a world where everyone can seamlessly access any digital service while keeping personal credentials safe. As a Core Engineer, you will work on building and maintaining core components of their privacy-preserving authentication technology, focusing on systems engineering, applied cryptography, and performance-critical C++.
BiometricsCyber SecurityIdentity ManagementInformation TechnologyInternet
Responsibilities
Develop robust, high-performance C++ libraries and SDK components used across mobile, desktop, and server environments
Own the build tooling and cross-platform compilation pipeline (Android NDK, iOS, Linux, Windows, macOS) using Make, CMake, and custom toolchains
Implement, integrate, and optimise cryptographic primitives using OpenSSL, Botan, and internally designed secure protocols
Contribute to our secure multiparty computation engine and privacy-preserving algorithms
Work closely with the security team to design defences against reverse engineering, including obfuscation, hardening, symbol management, and binary protection
Analyse performance bottlenecks, memory behaviour, and concurrency issues across diverse environments
Build Python tooling and automation scripts to streamline development, testing, and deployment workflows
Participate in code reviews, architecture discussions, and long-term technical roadmap planning
Ensure delivery of high-quality, thoroughly tested, production-ready code across all supported platforms
Qualification
Required
Strong expertise in modern C++ (C++17 or later) and systems-level programming
Experience with CMake, Make, and complex build systems targeting multiple platforms
Hands-on knowledge of cryptography (symmetric, asymmetric, hashing, key exchange) and practical experience with libraries such as OpenSSL or Botan
Familiarity with software security, reverse-engineering resistance, obfuscation strategies, and secure code practices
Understanding of secure protocol design, web security fundamentals, and network communication patterns
Experience with cross-platform development, particularly Android NDK and iOS toolchains
Proficiency with Python for tooling, automation, and scripting
Solid understanding of operating systems, memory models, concurrency, and performance optimisation
Ability to work autonomously on complex technical problems and communicate effectively with engineering and product teams
Strong understanding of the LLVM compiler architecture, including its IR, optimisation pipeline, and toolchain components
Preferred
Background in multiparty computation, applied cryptography, or privacy-preserving technologies
Experience integrating C++ libraries into higher-level platforms (Java/Kotlin, Swift/Obj-C, Python, etc.)
Knowledge of CI/CD tooling and automated testing pipelines for C++ and mobile platforms
Benefits
Flexible working arrangements, including remote work within the EU timezone.
Company
Keyless
Keyless provides biometric authentication solutions that enhance security without storing data.
Founded in 2019
51-200 employees
H1B Sponsorship
Keyless has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2023 (3)
2020 (1)
Funding
Current Stage
Growth StageTotal Funding
$18MKey Investors
Rialto VenturesP101VentureOut
2025-10-30Acquired
2025-01-22Series Unknown· $2M
2023-11-29Series Unknown· $6M
Leadership Team
Andrea Carmignani
Co-Founder & CEO
Fabian Eberle
COO & Co-Founder
Recent News
Best Information Security SIEM Tools, Software, Solutions & Vendors
2026-01-11
2026-01-09
Company data provided by crunchbase