This is the most characteristic Redlings profile. You get a device on the bench, and you do not ask for a web URL. Your work starts where the product physically begins: debug interfaces, flash memory, boot chain, firmware, protocols.

DEVICE → DEBUG → FLASH → BOOT → FIRMWARE → PROTOCOL → PRODUCT TRUST

What you will work on

Device and firmware assessments: boot chains, secure boot, firmware update mechanisms, readout protection.
Hardware access: UART, JTAG, SWD, flash and memory, extraction, analysis, evaluation.
Firmware unpacking and analysis: filesystems, configurations, secrets, third-party components.
Protocol analysis between device, gateway and backend, including proprietary ones.
Assessment of key storage and identity: secure elements, TPM, TrustZone, and what the architecture around them actually protects.

What you must bring

Embedded Linux, solid, not theoretical.
Firmware extraction and unpacking, filesystem and firmware analysis.
ARM/AArch64 fundamentals.
Bootloaders, secure boot, firmware updates.
UART, JTAG, SWD; flash and memory handling.
Ghidra or IDA, Python, basic protocol analysis.

A strong plus

RTOS experience.
BLE and other wireless technologies.
Secure elements, TPM, TrustZone.
Fuzzing, hardware debugging.
Exploitability and memory corruption assessment.
Proprietary protocols.

What you will learn with us

Invasive analysis: fault injection, decapsulation, on the rigs that do not fit in a home office.
Side-channel evaluation with real targets.
Coordinated disclosure with manufacturers.

Do not apply if …

… an open enclosure makes you nervous.
… you want to work through checklists instead of understanding a product.
… you expect a big-machine department behind you. It is you, the bench and the review.

Honestly

Hardware ships by courier, to the lab in Mannheim and to your home office alike. You do not need to be on site for a UART.
Invasive analyses run in the Mannheim lab or at the customer’s premises, some projects require devices never to leave the client’s rooms. Those days exist, they are rare.
Small team: flat, direct, and you will carry assessments that larger firms split across three roles.

What we offer

A lab bench that is actually used: devices, probes, logic analyzers, and the time to work thoroughly.
Permanent position, flexible hours, remote-first with lab days in Mannheim.
Research time for tools and publications, budget for certifications and conferences.
Senior-led reviews, quality is part of the process.

What have you taken apart lately? CV and a few lines via the form, everything else happens at the bench. Not a 100% fit? Apply anyway.