Interviews/Application Development/C++ Systems Engineer

Hire C++ Systems Engineers
who actually write code that respects the machine

With EasyEnv we build a fit test for the role. Use it to cut the noise at the top of the funnel, or to go deep on the candidates who matter.

You can even evaluate how this person works with AI. So you hire the engineer who can ship, not the one who looks good in a slide.

C++17 · C++20gdb · perfsanitizersCMake · BazelLive or take-home

Request a Demo Create a Free Account

Real Linux VM

Not a sandbox

systemd, kernel, full toolchain

Browser-based

Zero install for candidates

One link and they are in

Auto-graded

Pass / fail checks per challenge

Plus the full session replay

A great C++ engineer carries the language and the machine in their head at the same time. They reach for sanitizers before they reach for guesses. EasyEnv hands the candidate a real binary with a real bug, a real perf profile and a real budget to hit.

Inside a live interview

What you see when they work.

Real binary, real sanitizers, every keystroke recorded.

billing-api

AMS

Billing-api

src

billing.py

auth.py

models.py

tests

test_billing.pyM

test_auth.py

pyproject.toml

README.md

Pybilling.py

from decimal import Decimal

def calculate_total(items: list[dict]) -> Decimal:

# Sum line totals using Decimal for currency precision

total = Decimal("0")

for item in items:

total += Decimal(str(item["price"])) * item["qty"]

return total

candidate@cpp-workspace:~

alice@dev:~/billing-api$

● mainPython 3.12

Claude · ready

Claude

You

Refactor calculate_total to use Decimal for currency math, and add a test.

Claude

Ask Claude...

Mike

Sam

How it works

Three steps. Zero infra to maintain.

Pick the fit test

Use a ready-made challenge or ask us to build one for your stack. Live, take-home, or both.

Send one link

The candidate clicks. A full Linux workspace boots in their browser. No installs, no VPN, no zoom-share.

Review at 2x

Replay the session, read the auto-graded checks, and decide. Most reviews take under five minutes.

The problem

Why hiring a C++ Systems Engineer is hard.

Modern C++ is a moving target. C++17, C++20, C++23 each change the answer.

Memory bugs hide. Without sanitizers, the interview cannot test for them.

Performance is a profile, not a vibe. CVs say "optimized" too often.

Build systems for C++ are their own discipline. CMake fluency matters.

The fit test

What we measure for a C++ Systems Engineer.

Every area runs inside a real production-like workspace. The candidate works in a browser, the session records itself.

Memory and UB hunting

A binary with a use-after-free. ASAN, UBSAN and gdb are at hand.

Profile a hot path

A perf record on a real workload. They read the flamegraph before they touch the code.

Modern C++ taste

A header heavy with raw pointers. They modernise without changing semantics.

Build system fluency

A CMake project with a slow link. They fix without rewriting.

Tooling reach

gdb, perf, valgrind, lldb. They use what the workload calls for.

AI collaboration

Allow AI for boilerplate and grade whether they pass the sanitizer suite before they keep it.

The stack we put in front of them.

Real tools, pre-installed, accessible from the workspace terminal.

C++17C++20C++23CMakeBazelNinjagdblldbperfASANUBSANTSANvalgrindCatch2Google TestConanvcpkg

Sample challenges

What a C++ Systems Engineer interview looks like.

Pick from our library or ask us to build a challenge for your stack. Each one is a real workspace, not a snippet.

Challenge 01

The pointer that survives

Scenario

A test that segfaults under ASAN. The candidate has the source, the build and the sanitizer report.

What you learn

Whether they read the sanitizer trace before they touch the code.

In the workspace

$ ls challenges/

workspace, runbook.md, README.md

candidate has:

· a real Linux box in the browser
· kubectl, docker, terraform, jq, yq
· cluster, repo and cloud creds pre-wired
· auto-checks running in the background

interviewer sees:

· every keystroke + every command
· terminal + screen recording
· auto-graded pass/fail per check

AI in the loop

Score the engineer, and how they work with AI.

In C++, an LLM is happy to ship code that compiles and fails under sanitizers. EasyEnv records every prompt so you see whether the candidate ran the ASAN/TSAN/UBSAN suite before they merged the suggestion.

Allow or block AI per question, not per interview

Full prompt and response history replayed in the review

Score "verifies AI output" as a separate signal

Ready to hire a C++ Systems Engineer who ships?

Set up your first interview in under an hour. We will help you build a fit test for this role on your stack.

Request a Demo Create a Free Account

Role FAQ

Hiring a C++ Systems Engineer, answered.

On enterprise plans we can drop a copy of your CMake or Bazel project into the workspace.

Yes. The workspace can be provisioned with a GPU or an emulator for the target you care about.

No. The workspace runs in their browser. Terminal, editor, ports and dashboards are all served from the EasyEnv workspace, so candidate setup is zero.

Each challenge has automated checks (did the service come back, did the test pass, did the right log message appear) plus a recording your team can replay. Most reviews take under five minutes.

Yes. AI access is a per-interview setting. Block it for fundamentals, then allow it later in the loop to assess AI collaboration separately.

Interviews/Application Development/C++ Systems Engineer

Hire C++ Systems Engineers
who actually write code that respects the machine

With EasyEnv we build a fit test for the role. Use it to cut the noise at the top of the funnel, or to go deep on the candidates who matter.

You can even evaluate how this person works with AI. So you hire the engineer who can ship, not the one who looks good in a slide.

C++17 · C++20gdb · perfsanitizersCMake · BazelLive or take-home

Request a Demo Create a Free Account

Real Linux VM

Not a sandbox

systemd, kernel, full toolchain

Browser-based

Zero install for candidates

One link and they are in

Auto-graded

Pass / fail checks per challenge

Plus the full session replay

Inside a live interview

What you see when they work.

Real binary, real sanitizers, every keystroke recorded.

billing-api

AMS

Billing-api

src

billing.py

auth.py

models.py

tests

test_billing.pyM

test_auth.py

pyproject.toml

README.md

Pybilling.py

from decimal import Decimal

def calculate_total(items: list[dict]) -> Decimal:

# Sum line totals using Decimal for currency precision

total = Decimal("0")

for item in items:

total += Decimal(str(item["price"])) * item["qty"]

return total

candidate@cpp-workspace:~

alice@dev:~/billing-api$

● mainPython 3.12

Claude · ready

Claude

You

Refactor calculate_total to use Decimal for currency math, and add a test.

Claude

Ask Claude...

Mike

Sam

How it works

Three steps. Zero infra to maintain.

Pick the fit test

Use a ready-made challenge or ask us to build one for your stack. Live, take-home, or both.

Send one link

The candidate clicks. A full Linux workspace boots in their browser. No installs, no VPN, no zoom-share.

Review at 2x

Replay the session, read the auto-graded checks, and decide. Most reviews take under five minutes.

The problem

Why hiring a C++ Systems Engineer is hard.

Modern C++ is a moving target. C++17, C++20, C++23 each change the answer.

Memory bugs hide. Without sanitizers, the interview cannot test for them.

Performance is a profile, not a vibe. CVs say "optimized" too often.

Build systems for C++ are their own discipline. CMake fluency matters.

The fit test

What we measure for a C++ Systems Engineer.

Every area runs inside a real production-like workspace. The candidate works in a browser, the session records itself.

Memory and UB hunting

A binary with a use-after-free. ASAN, UBSAN and gdb are at hand.

Profile a hot path

A perf record on a real workload. They read the flamegraph before they touch the code.

Modern C++ taste

A header heavy with raw pointers. They modernise without changing semantics.

Build system fluency

A CMake project with a slow link. They fix without rewriting.

Tooling reach

gdb, perf, valgrind, lldb. They use what the workload calls for.

AI collaboration

Allow AI for boilerplate and grade whether they pass the sanitizer suite before they keep it.

The stack we put in front of them.

Real tools, pre-installed, accessible from the workspace terminal.

C++17C++20C++23CMakeBazelNinjagdblldbperfASANUBSANTSANvalgrindCatch2Google TestConanvcpkg

Sample challenges

What a C++ Systems Engineer interview looks like.

Pick from our library or ask us to build a challenge for your stack. Each one is a real workspace, not a snippet.

Challenge 01

The pointer that survives

Scenario

A test that segfaults under ASAN. The candidate has the source, the build and the sanitizer report.

What you learn

Whether they read the sanitizer trace before they touch the code.

In the workspace

$ ls challenges/

workspace, runbook.md, README.md

candidate has:

· a real Linux box in the browser
· kubectl, docker, terraform, jq, yq
· cluster, repo and cloud creds pre-wired
· auto-checks running in the background

interviewer sees:

· every keystroke + every command
· terminal + screen recording
· auto-graded pass/fail per check

AI in the loop

Score the engineer, and how they work with AI.

Allow or block AI per question, not per interview

Full prompt and response history replayed in the review

Score "verifies AI output" as a separate signal

Ready to hire a C++ Systems Engineer who ships?

Set up your first interview in under an hour. We will help you build a fit test for this role on your stack.

Request a Demo Create a Free Account

Role FAQ

Hiring a C++ Systems Engineer, answered.

On enterprise plans we can drop a copy of your CMake or Bazel project into the workspace.

Yes. The workspace can be provisioned with a GPU or an emulator for the target you care about.

No. The workspace runs in their browser. Terminal, editor, ports and dashboards are all served from the EasyEnv workspace, so candidate setup is zero.

Each challenge has automated checks (did the service come back, did the test pass, did the right log message appear) plus a recording your team can replay. Most reviews take under five minutes.

Yes. AI access is a per-interview setting. Block it for fundamentals, then allow it later in the loop to assess AI collaboration separately.

How to Hire a C++ Systems Engineer | EasyEnv | EasyEnv

Hire C++ Systems Engineerswho actually write code that respects the machine

What you see when they work.

Three steps. Zero infra to maintain.

Pick the fit test

Send one link

Review at 2x

Why hiring a C++ Systems Engineer is hard.

What we measure for a C++ Systems Engineer.

Memory and UB hunting

Profile a hot path

Modern C++ taste

Build system fluency

Tooling reach

AI collaboration

The stack we put in front of them.

What a C++ Systems Engineer interview looks like.

The pointer that survives

Score the engineer, and how they work with AI.

Ready to hire a C++ Systems Engineer who ships?

Hiring a C++ Systems Engineer, answered.

Hire C++ Systems Engineerswho actually write code that respects the machine

What you see when they work.

Three steps. Zero infra to maintain.

Pick the fit test

Send one link

Review at 2x

Why hiring a C++ Systems Engineer is hard.

What we measure for a C++ Systems Engineer.

Memory and UB hunting

Profile a hot path

Modern C++ taste

Build system fluency

Tooling reach

AI collaboration

The stack we put in front of them.

What a C++ Systems Engineer interview looks like.

The pointer that survives

Score the engineer, and how they work with AI.

Ready to hire a C++ Systems Engineer who ships?

Hiring a C++ Systems Engineer, answered.

Hire C++ Systems Engineers
who actually write code that respects the machine

Hire C++ Systems Engineers
who actually write code that respects the machine