Embedded Software Engineer Staffing. Everything Has to Fit.
Flash gets fixed the day somebody picks the part. Your update path acquires an owner around then too, whether or not anybody wrote the name down, and month nine is a rough time to find that out. KORE1 staffs that layer while it is still a line item rather than the thing holding the release.
KORE1 places embedded software engineers on contract, contract-to-hire and direct hire, covering embedded Linux, RTOS application work, connectivity stacks and over-the-air update services. Our engineering desk averages 17 days to first qualified submit, and 92% of placements are still in seat at twelve months.
Last updated: August 24, 2026
Above the Driver, Below the Cloud
Plenty of the embedded requisitions that reach us say firmware engineer in the title. A fair number turn out to be something else once we ask what’s actually late. The intake call catches it.
The firmware seat owns the register, the driver and board bring-up, and the cloud team takes over somewhere around provisioning and telemetry. Between the two sits a layer most org charts skip. Field returns trace back to it more often than they trace back to the driver, because a state machine that wedges after a bad update looks exactly like a hardware fault until somebody pulls the logs.
Somebody has to keep the Yocto image reproducible. RTOS tasks have to hit their deadlines every period rather than most periods, and proving it is a job on its own. Then there’s the update path, which has to be safe enough to run on a device sitting in a customer’s basement, and that is a different kind of safe from the one you can demonstrate on a bench with a debugger attached.
None of it got budgeted, so the work lands on whoever sits nearest. That is how a senior firmware engineer ends up maintaining a Yocto layer and a CI runner she never asked for, while the Cortex-M7 bring-up she was hired to do slips two sprints to the right.
We have placed this profile through our engineering staffing agency practice for over twenty years, and part of the job is telling people when they have landed on the wrong page. Register-level work belongs on firmware engineer staffing, and anything spanning hardware and software as one system starts at embedded systems engineer staffing.
Does It Fit?
Ask an embedded software engineer to add a feature and the first thing they open is the map file. Whether it’s a good idea gets settled later, because it has to fit first. Flash and RAM were fixed the day somebody picked the part, and enthusiasm doesn’t add a megabyte. Teams run on the same arithmetic. The org chart hides it.
Two megabytes of flash on a Cortex-M7 part, drawn to scale. Six regions take 1,760 KB, 288 KB stays free, and that free block is the number every engineering argument on the program came back to. Nobody argued about the bootloader.
A team at 96% allocation cannot take a new product line, however good the roadmap looked in the quarterly deck.
Read the map as a staffing document and it stops being a linker artifact. Adding a seat in month nine costs more than the seat, because whoever arrives has to learn a BSP that already carries scar tissue, and the only people who can explain that scar tissue are the ones you just pulled off the work to run interviews. Programs that hold a seat open from month one ship closer to the date than programs that go hunting in month nine.
What We Ask That a Generalist Screen Doesn’t
A generalist technical screen asks a candidate to reverse a linked list, and the candidate reverses it. That tells you nothing about whether they will survive a heap that fragments after nine days of uptime and takes the BLE stack down with it at a customer site on a Sunday.
We ask about the numbers on their last build. How much flash was left at tape-out. What the worst-case stack depth was and how it got measured, because “we never saw it overflow” is not a measurement. Whether RTOS task priorities were assigned by analysis or by whoever complained loudest in standup. What the static analysis run produced against MISRA C:2012, and more usefully, which findings they argued down and on what grounds. Adjectives don’t help us.
Our embedded software engineer interview questions cover the technical half of that screen in full. Then the softer question, which is the one that actually separates people. Ask an engineer what happened the last time a unit came back from the field and you learn more in four minutes than a whiteboard round gives you in an hour.
Recruiters who can’t hold that conversation end up forwarding résumés that matched on keywords, which is how somebody with two years of Arduino projects reaches a final round for an ASIL D seat. Our engineering recruiters average fifteen years. They ask the second question.
Three Ways to Allocate the Seat
Same engineer, different commitment. Which one fits depends on whether the work has an end date.
One program window
A named seat for the length of a release or a certification cycle. Common when a firmware team is mid-program and the RTOS application work has outrun the headcount plan. It happens constantly.
Contract staffing →Evaluate on your hardware
Six to twelve weeks on your own boards and your own toolchain tells you what a panel can’t. Embedded work is hard to interview for and easy to watch. The full question set we run is in our embedded software engineer interview questions guide. Boards don’t lie.
Contract-to-hire →The permanent allocation
For regions of the map that never go away, meaning the BSP, the update path and anything carrying an audit trail. These seats never close. They’re worth paying to keep.
Direct hire →Programs Where the Process Is Half the Job
In a regulated program roughly half of what you’re paying for is evidence rather than code, meaning trace matrices, unit-test records and a design history an auditor can follow end to end. An engineer who has never produced that evidence goes slow in ways nobody predicted at offer stage, and it surfaces late, usually the week somebody is assembling the submission. Evidence takes time.
Medical device
IEC 62304 software safety classes A, B and C, risk files that have to stay in step with the code, and design history that an auditor can follow. Auditors read the record. See medical device staffing.
Automotive
ISO 26262 with ASIL A through D, AUTOSAR Classic and Adaptive, CAN and LIN, and suppliers who expect traceability from requirement to unit test. Traceability is the deliverable.
Aerospace and defense
DO-178C design assurance levels A through E, structural coverage analysis, and programs where a clearance changes the size of the candidate pool more than the skill set does. Clearance shrinks the pool.
Industrial and connected products
IEC 61508, Modbus and OPC UA on the plant side, Matter and Thread on the consumer side. Plant floors run old. Adjacent to our manufacturing IT staffing work.
Open source matters here too. Most of the RTOS application work we staff now sits on Zephyr, which changed what a good candidate’s recent history looks like, and it changed what we ask about in a screen.
Common Questions
How is an embedded software engineer different from a firmware engineer?
Firmware engineers own the register, the driver and board bring-up, and everything running above that layer belongs to the embedded software engineer, from RTOS application tasks to Yocto, connectivity stacks and over-the-air updates.
Plenty of people do both, especially at companies under fifty engineers. The distinction bites when you write the requisition, because a description built around register maps, JTAG and bare-metal drivers quietly filters out the Yocto and Zephyr people you actually needed, and you won’t find out for six weeks. Our embedded software engineer job description template is built to avoid exactly that.
How fast can you get someone started?
KORE1 averages 17 days from kickoff to first qualified submit on engineering searches. Embedded software runs at the longer end of that range because we screen on memory budgets and timing analysis rather than on keywords.
Contract seats move faster than direct hire, usually by a couple of weeks, since notice periods are shorter and the decision is easier to reverse. Two weeks to a start date is realistic on a commercial program. Add four to six once the seat needs a clearance or a badge for a shielded lab.
Can you staff engineers who’ve worked under IEC 62304 or ISO 26262?
Yes, and we screen for the process record rather than the standard’s name on a résumé, because an engineer who has actually worked a Class C or an ASIL D program can describe what the evidence trail cost them.
Specificity is the tell. Someone who lived it talks about the requirement-to-test traceability that ate three weeks, or the change that looked trivial and triggered a re-review of everything downstream. If the answer stays general and the standard never costs anybody anything, they watched from the next desk.
DO-178C and IEC 61508 backgrounds get the same treatment. We check them the same way.
Do you place embedded Linux people, or only RTOS?
We place both, though embedded Linux and RTOS are two different hires. One is Yocto layers, BSP integration, device tree and systemd. The other is task design, priority assignment and worst-case timing on Zephyr, FreeRTOS or ThreadX.
Hiring a strong Yocto engineer into an RTOS seat is one of the more expensive mistakes we see. The résumé reads right. The first sprint doesn’t. Tell us which region of your map is short and we’ll search accordingly. One call usually settles it.
What drives the rate on an embedded software contractor?
Safety class, clearance, on-site hardware access and the choice between embedded Linux and a certified RTOS move an embedded software rate more than years of experience do.
Remote-friendly embedded Linux work prices very differently from an ASIL D program that requires someone in the building next to a test rig four days a week. Location moves the number. Our software engineer salary guide carries the broader benchmarks, and we’ll give you a live read for your specific stack and market on a scoping call.
We don’t know whether we need one seat or three. Can you help scope it?
Send us the current memory map, the release plan and the name against each software region, and we’ll tell you where the real gap is before we send a single résumé.
Plenty of scoping calls end with a smaller search than the client expected, because the missing piece turned out to be one senior seat rather than three mid-level ones. We say so early. If you’d rather work through it yourself first, our guide on how to hire an embedded software engineer walks the same ground.
Tell Us What Has to Fit
Send the region that’s short and the date it has to hold by. We’ll come back with a shortlist, a realistic start date and an honest read on whether it’s one seat or three. Send the map too.
Talk to an Engineering Recruiter →