Autograding, rubric review, and academic-integrity due process in one platform — for high schools, colleges, and universities grading everything from Python scripts to final papers. Fully hosted and managed by Emzini weCode, so your faculty just teach and grade.
Named for a good dog.
Flag, review, hear, resolve. Poseidon gives you a documented, human-led process for the GenAI era — a transparent standing score with a per-flag breakdown, a hearing and communications log, and a clear split between who flags and who decides. It is a due-process workflow, not an AI detector — you stay in control, students get fairness.
Show students their autograder score the moment a run finishes — or hold everything for exam mode and publish when you're ready. Rubric points, comments, and adjustments stay private until you click publish. One platform, two channels, your call.
Poseidon watches for the warning signs — no activity, a missed assignment, failing runs then silence — flags at-risk students weekly, and gives you edit-before-send outreach. Then it reconciles who re-engaged, so you have the retention evidence, not just a dashboard.
Student code runs against your test suite in a sandboxed environment. Scores, failure diagnostics, and output return automatically. Zero manual grading, any cohort size.
Design question-level rubrics with positive or negative scoring. Consistent, structured feedback on every submission, graded question by question across the whole class. TAs work faster, students understand why.
Grade code, PDFs, essays, lab reports, and presentations in one platform. Every assignment type, every discipline. Not just computer science.
Item difficulty, discrimination, and reliability (KR-20) on every rubric item and test case. See what your assessment is really measuring — before you publish, and after.
Release grades to a full cohort in one click. Score distributions, mean, median, and high surface automatically. Students get the full statistical picture, instantly.
Students file regrade requests directly in the platform, in context. Instructors review and respond with the original submission and grading visible side by side.
Step 1
Create courses, define rubrics, and configure your autograder. Invite students and TAs by email. They click a link and they are enrolled.
Step 2
Students upload submissions through the platform. The autograder runs in a sandboxed environment; TAs review and apply rubric items in the browser.
Step 3
Release grades to the full cohort in one click. Every student receives their score, class mean, median, and high directly in the platform.
We host, run, and maintain everything — no servers to provision, no DevOps, no IT burden. Your faculty just teach and grade; we keep the platform running, patched, and backed up.
Engineered by Emzini weCode in Bulawayo and run by the people who build it. Direct support, a shared working day, and a team that actually answers — for any institution that grades at scale, anywhere in the world.
No foreign cloud account, no international card. Billed directly in your currency by proforma, purchase order, and invoice — on terms that fit your institution, not a rigid offshore subscription.
Autograde at any cohort size, grade rubrics question by question, leave inline feedback, and publish to the whole class in one click — whether you're one teacher with a single class or running a 500-student course with a TA team. TAs get a scoped, rubric-only view that keeps grading consistent.
Shared courses and TA workflows, at-risk early alerts, a weekly instructor digest, and item analysis across every section — a polished multi-TA grading operation with full who-graded-what attribution.
One deployment, many schools. Each gets its own admin portal with members, courses, usage, and billing — all within boundaries you set, and aggregates-only, so admins never see student work.
A young, focused team you can actually reach — running in production today.
Poseidon is built and operated by Emzini weCode in Bulawayo, Zimbabwe. You don't file a ticket into a queue — you talk to the people who build it.
Poseidon is live today, grading a real university CS cohort of 300+ students. This isn't a prototype; it's the platform we run every week.
Each institution's courses and grades are isolated. Data is encrypted in transit (HTTPS/TLS), passwords are stored as one-way hashes, and access is invitation-only and role-based. If a breach ever poses real risk, we notify affected users promptly. We don't sell data and we don't run ads.
You provision nothing, patch nothing, and back up nothing — and if you ever leave, you can export your institution's data. The managed model means less to run, not less control.
No. Poseidon is fully hosted and managed by Emzini weCode — your institution gets its own space on the platform, with accounts for staff and students. Nothing to provision, patch, or back up.
No. Autograding runs the test suite you provide, in a sandbox — there's no AI grading your students' work. Our integrity tools are a documented, human-led due-process workflow, not an automated accuser. And our item analysis is classical psychometrics (difficulty, discrimination, KR-20), not machine learning.
Any language. Each submission runs in an isolated container against the test suite you provide — Python, Java, C, JavaScript and more all work the same way.
Three ways: a one-click email invitation, a course join code, or a CSV roster import. Registration is invitation-only, so only your people get in.
Emzini weCode hosts and operates the platform; each institution's courses and grades are isolated, and registration is invitation-only. We don't sell data or run ads.
Fair question. Poseidon is in production today grading a live 300+ student cohort, you talk directly to the team that builds it, and you can export your institution's data at any time. If a breach ever poses real risk, we notify you promptly. We'd rather earn your trust with candor than overclaim.
Yes — request a demo and we'll walk your team through a fully-populated example course, from autograding to publishing grades.
Poseidon is priced per active student, per term — you only pay for students who actually use it — and each institution gets a quote tailored to its cohort. Billed directly in your currency (USD or ZAR) by proforma, purchase order, and invoice — no foreign card, no offshore subscription. Soft limits warn; they never cut you off mid-term. Start with a pilot course before you commit.
Request a quote for your cohort →Live demo · no sign-up · pilot one course first.