Most people call me Kofi.
Information Systems · Networking & IT Infrastructure · Full-Stack Developer
Accra, Ghana
I am Prince Kofi Frimpong Amissah, an Information Systems graduate and CCNA-trained network technician building practical software for infrastructure, finance, and everyday Ghanaian workflows.
I like tools that make complicated things easier to trust: packet analysis, subnetting, payroll, exchange rates, escrow flows, and full-stack products that feel useful outside a tutorial.
Right now I am sharpening my work across TypeScript, React, Next.js, Node.js, PostgreSQL/Prisma, Tailwind CSS, and networking fundamentals.
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Ghana-focused utilities PAYE, FX, payments, and tools that match local workflows. |
Full-stack products Auth, databases, analytics, deployment, and clean UI flows. |
Networking & security Network forensics, subnetting, IT support, and systems thinking. |
A defensive network forensics sandbox for reviewing packet exports and decoded telemetry. It ingests Wireshark CSVs, Suricata EVE alerts, Zeek summaries, and structured logs, then reconstructs TCP/UDP flows, surfaces DNS/HTTP/TLS intelligence, flags suspicious signals with a deterministic rule engine, and drafts evidence-bound AI analyst memos through a redacting server-side proxy. Everything runs in an ephemeral in-memory sandbox and compiles into a report-ready incident timeline with a readiness score.
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A self-hosted OpenID Connect identity provider with its own login screen, so applications authenticate against infrastructure I run instead of a third-party auth service. Argon2id credentials, TOTP two-factor with single-use recovery codes, Google sign-in with pre-hijacking-safe account linking, step-up re-authentication, per-IP and per-account rate limiting, and revocable sessions — with an append-only audit trail behind all of it. Built deliberately: the OAuth2/OIDC protocol layer is a certified library, while identity storage, credential verification, lockout, second factors, and the interface are mine. Security properties are tested adversarially — account enumeration, token replay, 2FA bypass, and orphaned sessions after account deletion each have a test asserting they fail. Private repository · in active development. Not yet independently reviewed, so there is no public code or demo while that remains true.
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A privacy-first, AI-assisted tool that turns scattered scam evidence (SMS, WhatsApp, links, Mobile Money receipts) into a structured case file with PII redaction, risk scoring, timelines, and PDF reports.
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AI-powered civic-tech inspection dashboard for classifying drone gutter images, processing batches, and routing uncertain results into human review.
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Local-first OBS graphics control surface for live worship and productions, with browser-based control/output, presets, local assets, people, dynamic fields, and scripture lookup.
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Payroll calculator for 2026 GRA bands, SSNIT Tier 1, Tier 3 relief, and printable payslips.
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IPv4 subnet/CIDR utility with binary breakdowns and subnet splitting.
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Live Ghana cedi exchange rates with offline cache for quick daily checks.
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Full-stack URL shortener with persistent links and click analytics.
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Personal site tying together my work, skills, and contact links.
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A portfolio of tools that connects software engineering with Ghanaian business, payments, security, and infrastructure realities.
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I am open to junior full-stack, IT support, networking, and product-building opportunities where practical systems matter.
- Portfolio: prince-kofi-amissah.vercel.app
- LinkedIn: linkedin.com/in/prince-kofi-frimpong-amissah
- Email: princeamissah0@gmail.com
- GitHub: github.com/MrrAmissah