Jens Wiklander
Senior Software Engineer at Linaro
Greater Helsingborg Metropolitan Area Sweden
Summary
🤩
Rockstar🎓
Top SchoolJens Wiklander is a Senior Software Engineer with 12 years focused on low-level security, TrustZone and Trusted Execution Environments, currently maintaining and contributing to OP-TEE at Linaro. He combines kernel and firmware expertise—ARM trusted firmware, PSCI/SMC interfaces and arm-smccc—with practical build and platform bring-up skills across Juno, HiKey and QEMU targets. Jens has a track record of hardening core TEE code, adding memory tagging (MTE), tightening access checks and expanding 64-bit client support while keeping 32-bit secure-world compatibility. His work spans test-suite improvements and automation to catch corner cases and crypto parameter bugs, reflecting a security-first engineering mindset. Based in the Greater Helsingborg area, he blends deep embedded systems craftsmanship with prolific open-source stewardship of one of the leading Arm TEEs.
12 years of coding experience
15 years of employment as a software developer
Högskolan på GotlandLuleå University of Technology
English, Swedish
Stackoverflow
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Github Skills (36)
assembly10
buildroot10
qemu10
architecture10
testing10
firmware10
memory-management10
c-programming10
c1110
linux-kernel10
makefile10
trusted-execution-environment10
security10
c1710
kernel10
Programming languages (6)
Github contributions (5)
OP-TEE/optee_test
Mar 2015 - Jan 2023
Test suite
Role in this project:
Back-end Developer & Security Engineer
Back-end Developer & Security EngineerContributions:151 reviews, 147 commits, 110 PRs in 7 years 10 months
Contributions summary:Jens primarily focused on contributing to the test suite, fixing bugs, and implementing security features within the OP-TEE test environment. They addressed issues in the TA (Trusted Application) crypto library, rectifying parameter passing errors and making API changes, and added new test cases for verifying the integrity of the TA and testing for security vulnerabilities. Furthermore, the user worked on refactoring and enhancing the test framework by adding the capability to test both memory use and test corner cases.
testingsuite
OP-TEE/optee_os
Jun 2014 - Jan 2023
Trusted side of the TEE
Role in this project:Back-end Developer
Back-end DeveloperContributions:2584 reviews, 1680 commits, 694 PRs in 8 years 8 months
Contributions summary:The user, Jens Wiklander, made multiple commits primarily focused on the core functionality of the OP-TEE OS, a Trusted Execution Environment. His contributions involved refactoring and implementing new low-level functionalities and API changes. The user removed unused code, fixed potential security issues by incorporating stricter access checks, and replaced deprecated functionalities with newer approaches. They also improved the robustness of the system by implementing memory tagging with MTE.
trustedtee
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