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Real production challenges. Reviewed against a real spec. Permanent cryptographic proof that gets you hired.
Free 1-year cryptographic ledger certificate · Open-source friendly
Illustrative specimen — an example of a reviewed entry
DevLedgr replaces ambiguous claims with verifiable engineering proof. Here is how you turn problem-solving into job offers.
No LeetCode toys. Tackle distributed race conditions, offline sync partitions, high-frequency state reconciliation, and zero-downtime schemas.
Each problem spec covers synthetic traffic bursts, chaos injection, and latency budgets. A reviewer works through them with your implementation and records the results. Satisfy the spec to earn an immutable SHA-256 commit stamp.
Your permanent domain (you.devledgr.xyz) featuring cryptographic certs, telemetry cards, and interactive architecture diffs.
1-click ATS-ready markdown for CVs and outreach. Our engine maps your verified proofs against live roles to pinpoint exact gaps to solve.
Real developers having their work reviewed against a problem spec and signed into a permanent record.
Solve production failure modes. Get it reviewed. Stamp your permanent public ledger.