Saferta.

Provenance

Saferta started as a Slovak BOZP-related platform project – online workplace safety and fire-protection training. I rebuilt it into an English-language certification-flow showcase for portfolio use, useful when a prospect asks for a certification or compliance-adjacent reference. Not a separate client engagement.

Roles

Brand Identity UI/UX Design Full-Stack Development Database Design DevOps & Deployment

Overview – digitizing mandatory workplace training

In Slovakia, every employer must ensure employees complete OHS and fire-safety training. The traditional process – in-person sessions, paper certificates, manual scheduling – is slow, expensive, and impossible to track.

Saferta turns this into a fully online experience: employees complete accredited training and receive instant PDF certificates in under 30 minutes.

Key screens

The certification flow runs end-to-end from public marketing through employee study, automated grading, and B2B billing. Seven canonical screens cover the entire pipeline.

saferta-lake.vercel.app/

saferta-lake.vercel.app/bundles

saferta-lake.vercel.app/my-courses

saferta-lake.vercel.app/certificates

saferta-lake.vercel.app/course/safety

saferta-lake.vercel.app/test

saferta-lake.vercel.app/result

Five core modules

01 · Course builder & certification. Companies create and assign courses. Employees study and get certified. Everything tracked automatically – NIP-accredited, legally valid.

02 · Self-grading examination engine. Tests grade themselves. Randomized questions, countdown timer, instant pass/fail verdict – zero manual work for administrators.

03 · Automated certificate generation. Pass the test, get the certificate. PDF with a unique QR verification code, downloadable instantly, verifiable by employers without login.

04 · B2B company portal. HR teams bulk-enroll employees via CSV, monitor progress, and get automatic expiration reminders. Volume pricing and consolidated invoicing.

05 · Payments & invoicing. Stripe and GoPay integrated. PDF invoices generated automatically per transaction. B2B billing cycles and volume tiers without manual steps.

Brand identity – built from scratch

Saferta had no identity. I created the name, the logo, the colour system, and the typographic voice – then built the entire platform on top of it.

Colour system. Primary Green #16A34A, Saferta Green #22C55E, Slate Dark #0F172A, Slate Light #F1F5F9.

Typography. Sora + DM Sans – display, body, UI.

Tech stack

• Frontend – Next.js 14, React, TypeScript
• Styling – Tailwind CSS, Framer Motion
• Backend – Next.js API routes, Server Actions
• Database – PostgreSQL (Neon), Prisma
• Auth – NextAuth.js, role-based access control
• Payments – Stripe, GoPay
• Certificates – Puppeteer, QR codes, jsPDF
• Deploy – Vercel, Edge Functions

Results – what was shipped

Metric	Outcome
Time to production	3 months from brand naming to live deploy
Avg. time per certification	30 minutes vs. days with paper-based process
Manual steps post-launch	0 – grading, certificates, and invoicing all automated

Why it matters

I point training / HR-adjacent prospects at this when they ask "can you build a certification system?" – yes, here's a working reference with the full pipeline already in place: course authoring, assessment engine, certificate generation, B2B enrollment, payments.