Jarkko Säkkinen
Localization Specialist
Helsinki, Finland
Summary
🤩
Rockstar🎓
Top SchoolJarkko Säkkinen is a Helsinki-based Localization Specialist with 14 years of experience blending language services, project management and hands-on technical contributions. He has managed translation and subtitling projects for EU institutions and Finnish public administration while also freelancing as a subtitler, demonstrating deep domain knowledge in localization workflows and tooling. Technically adept, Jarkko contributes to notable open-source projects—including fixes and security work in the Linux kernel TPM subsystem, Enarx SGX support, Surge synthesizer builds and SMACK integration in coreutils—bringing robustness and performance improvements to low-level systems. His background in European studies and history informs strong stakeholder communication and process design, evidenced by automation and onboarding projects for the City of Helsinki. Comfortable crossing the language–technology divide, he pairs project leadership with code-level problem solving, making him effective at shipping secure, production-ready localization and infrastructure solutions. An interesting detail: alongside localization leadership he actively patches core OS security and cryptographic subsystems, a rare hybrid of linguistic and systems-level expertise.
14 years of coding experience
3 years of employment as a software developer
Exchange student (Erasmus) Scandinavian Area Studies, Exchange student (Erasmus) Scandinavian Area Studies at Syddansk Universitet - University of Southern DenmarkBachelor of Arts - BA History, Bachelor of Arts - BA History at University of Tampere 1925-2018Master of Science - MS European Studies, Master of Science - MS European Studies at University of Gothenburg
Finnish, English, Swedish, Spanish, Danish, French
Github Skills (39)
confidential-computing10
c-language10
buildroot10
package-management10
sgx10
plugin-development10
it-security10
plug10
linux10
c1110
linux-kernel10
plugin10
security10
c1710
sys10
Programming languages (14)
Github contributions (5)
enarx/enarx
Jan 2022 - Jun 2022
Enarx: Confidential Computing with WebAssembly
Role in this project:
Back-end & Security Engineer
Back-end & Security EngineerContributions:200 reviews, 45 commits, 71 PRs in 5 months
Contributions summary:Jarkko primarily contributed to the Enarx project by implementing and modifying security-related features, particularly focused on SGX (Software Guard Extensions) attestation and memory management. Their work involved refactoring code, updating to the latest AESM protobuf definitions, and adding SGX2 enarxcalls, including handlers for mmap(), mprotect(), and munmap(). The user also addressed compilation issues and improved the shim-sgx implementation with various fixes.
trusted-execution-environmentteeenarxwebassemblyconfidential-computing
surge-synthesizer/surge
Nov 2018 - Jan 2021
Synthesizer plug-in (previously released as Vember Audio Surge)
Role in this project:Back-end Developer
Back-end DeveloperContributions:80 commits, 66 PRs, 7 pushes in 2 years 2 months
Contributions summary:Jarkko primarily focused on fixing build issues, improving code quality, and addressing compiler warnings related to the synthesizer plug-in. They fixed Linux build issues for VST2, addressed type casting issues in SurgeVst3Processor.cpp, and corrected return values in a patch browser component. Additionally, they improved code by removing unused files, adjusting buffer sizes, and correcting multi-character constant usage. The user also addressed CPU architecture code for macOS and Linux.
synthesizermidiaudioplug-inreleased
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