Introducing Feenyx: Technical Skill Assessments that Feel Like Real Work

A faster, fairer way to evaluate engineering talent—powered by realistic challenges and a rock‑solid code execution engine.

The problem with most tech hiring

Most assessments either over‑index on trivia or mimic a whiteboard interview from 2012. Candidates jump through hoops; teams get noisy signals; everyone loses time. You need to know whether someone can actually build and debug software—not whether they memorized a method signature.

Meet Feenyx

Feenyx is a technical skill assessment and interview‑as‑a‑service platform built to help teams hire with confidence. We combine hands‑on coding tasks, systems design prompts, and workflow‑centric exercises to measure what matters:

Realistic challenges that mirror your stack and day‑to‑day work.

Auto‑ and human‑assisted grading for accuracy and nuance.

Actionable analytics that translate results into hiring decisions.

Delightful candidate experience that showcases their abilities—not their test‑taking endurance.

What makes Feenyx different

Authentic tasks, not puzzles. We focus on debugging, extending existing codebases, reading docs, and working with APIs—things engineers do every day.

Flexible formats. From quick screens to take‑home projects to live pair interviews, mix and match what fits your funnel.

Grading you can trust. Deterministic test suites meet expert review. Rubrics and calibration tools keep evaluations fair and consistent across interviewers and time.

Insights that move the needle. Compare candidates across roles, difficulty levels, and competencies. Spot skill gaps and tailor follow‑ups with a click.

Under the hood: reliable, up‑to‑date code execution

To deliver a smooth and accurate experience, Feenyx integrates with Judge0, a battle‑tested code execution service. Judge0 helps us:

Run code in dozens of languages and versions (from Python and JavaScript to Go, Java, C/C++, and more) so candidates can work in what they know.

Stay current as ecosystems evolve—language updates, compiler changes, and new features roll in without slowing your team down.

Scale securely with isolated sandboxes and resource limits, ensuring performance and safety at peak hiring moments.

By partnering with Judge0 for execution, Feenyx stays focused on what we do best: crafting high‑fidelity assessments and grading them accurately.

A "real work" environment on GCP Compute Engine

To simulate day‑to‑day engineering, Feenyx also offers ephemeral environments backed by Google Cloud Compute Engine. These are provisioned on‑demand for each assessment or interview and torn down automatically when the session ends. That means candidates can solve problems in an environment that feels like production—without risking yours.

What this unlocks:

Realistic tooling: Prebuilt images with shells, package managers, Docker, Git, language toolchains, and optional services (e.g., Postgres/Redis) so tasks mirror the way your team actually works.

Right‑sized resources: Tunable CPU/RAM and time limits to match role expectations (from quick screens to heavy data or backend exercises).

Network isolation & security: Per‑session VPC isolation and ephemeral credentials; environments are wiped after use.

Observability for graders: Execution logs and artifacts captured for review, while keeping candidate PII protected.

Judge0 handles fast, deterministic code execution for language coverage, while GCP Compute Engine powers full‑stack, project‑style scenarios—together delivering a high‑fidelity, secure assessment experience.

How Feenyx fits your hiring flow

Define the role and competencies. Choose the skills that matter—algorithms, backend, frontend, data, DevOps, or a blend.

Pick or customize assessments. Start with our library or bring your own tasks. Align difficulty to stage.

Invite candidates. Seamless links, ATS integrations, anti‑plagiarism checks, and optional proctoring.

Evaluate together. Auto‑grading plus reviewer rubrics. Shareable scorecards and snippets.

Decide with clarity. Evidence‑backed comparisons and next‑step recommendations.

Candidate experience: straightforward and respectful

Familiar editors, real inputs/outputs, and instant feedback where appropriate.

Guidance and constraints are clear; no trick questions.

Accessibility and time‑zone friendly scheduling.

Security & reliability

Ephemeral, sandboxed execution via Judge0.

Role‑based access, audit trails, and candidate data controls.

Uptime, rate limiting, and throttling to keep high‑volume cycles running smoothly.

Who uses Feenyx

Startups needing fast, consistent signals without building a process from scratch.

Growth‑stage teams standardizing interviews across locations and managers.

Enterprises seeking calibrated, fair, and legally defensible assessments at scale.

What you can assess

Coding & debugging (single‑file or multi‑module)

Code review (readability, correctness, security)

Systems & API design (written or live)

Data & analytics (SQL, Python, notebooks)

Cloud & DevOps (scripts, pipelines, incident sims)

Roadmap highlights

Deeper stack‑aligned templates (framework‑specific scenarios)

Collaborative live sessions with replay

Expanded analytics on competency progression over time

Why this matters now

Engineering teams are expected to do more with less. You can’t afford false positives (expensive mis‑hires) or false negatives (missing great talent). Feenyx turns interviews into a shared, repeatable craft—so you can hire confidently and inclusively.

FAQ

Does Feenyx support my language and version?

Very likely. Through Judge0, we support a wide set of languages and regularly updated versions. If you’ve got a niche runtime, let’s talk.

How do you prevent cheating?

We combine originality checks, time‑bound links, optional proctoring, and task design that rewards genuine problem‑solving over copy‑paste.

Can we import our own challenges?

Yes. Bring your tasks and rubrics; we’ll wire them into our grading and analytics.

Can we run take‑homes and live sessions?

Absolutely. Use Feenyx for async screens and live pair sessions, with consistent scoring across both.

Ready to see Feenyx in action?

If you’re hiring engineers and want assessments that feel like real work—with a smooth, secure execution layer thanks to Judge0—let’s talk. We’d love to show you how teams are shortening time‑to‑hire and improving signal quality with Feenyx.

👉 Learn More about Feenyx: https://www.feenyx.ai

👉 Explore Judge0: https://judge0.com

* Photo by Glenn Carstens-Peters on Unsplash