I'm Polycarp Okock.-hero-background

I'm Polycarp Okock.

I'm a Full-Stack Software Engineer, currently leading healthcare platform development and conducting cybersecurity research. Specialized in building enterprise-grade microservices with distributed observability, production deployment orchestration, and AI/ML integration.

My focus spans Next.js 14, FastAPI, Fastify microservices, OpenTelemetry observability, CapRover deployment, and zero-trust security architecture. I'm passionate about building scalable systems that prioritize both performance and security, with a background in medical imaging research and a commitment to African-led innovation in healthcare technology.

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Professional profile

About Me

I have worked as a developer for the last 8+ years as a backend/frontend/full-stack developer across various domains including medical imaging, healthcare technology, and cybersecurity. Currently leading development of enterprise healthcare platforms and conducting cybersecurity research at the intersection of AI/ML and secure application design. My expertise spans full-stack microservices architecture, production deployment infrastructure (CapRover, Docker, Kubernetes), distributed observability (OpenTelemetry), AI/ML applications, web security, and zero-trust security protocols.

Location

Bratislava, Slovakia

Age

30+

Nationality

Kenyan

EU Residence

Blue Card Holder - Permanent EU Residence

Interests

Rollerskates, Hiking, RPG

Ph.D.

Slovak University of Technology

Professional Summary

Executive summary of qualifications. Complete details available in downloadable resume.

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Education

Ph.D. Applied Mathematics

Slovak University of Technology
August 2021

Research: Efficient Software Solutions for Medical Processing and Analysis

Medical ImagingAlgorithmsResearch

Master in Mathematical Sciences

African Institute for Mathematical Sciences (AIMS)
August 2015

Distinction - Quantum mechanics research

MathematicsPhysicsMatrix Methods

BSc. Applied Statistics with IT

Maseno University
August 2014

First Class Honors

StatisticsData AnalysisIT Systems

Certified Public Accountant (K)

KASNEB
December 2012

Professional accounting certification

FinanceAuditingBusiness Law

Key Experience

Creator - Sleepy Tabs Guardian (Chrome Extension)

Independent Project
September 2025 - Present

Built and published Sleepy Tabs Guardian, a Manifest V3 Chrome extension that freezes inactive tabs, reloads high-memory pages, and visualizes telemetry in a React dashboard. Engineered hybrid automation combining in-tab sampling, Chrome debugger lifecycle controls, and an optional Node.js + Playwright companion to drive CDP actions.

Shipped options UI, consent workflows, IndexedDB history, and Chrome Web Store assets (pending review) while implementing native messaging bridges and observability tooling for remote-debug-enabled environments.

Links: Live Demo | GitHub Repository

Chrome ExtensionsManifest V3ReactTypeScriptViteChrome Debugger APIPlaywrightIndexedDB

Consulting Director - Healthcare Technology Platform

Remote - Consultancy, Nairobi Kenya
November 2024 - Present

Leading strategic consulting and full-stack development for CarePro healthcare platform. Architected and deployed enterprise-grade microservices including Next.js 14 frontend with React 18, Fastify-based verification service, and Python FastAPI-powered DeepFace biometric authentication. Implemented distributed observability using OpenTelemetry for real-time monitoring across services. Designed and deployed Admin Dashboard for verification service providing real-time job monitoring, analytics, and user insights. Orchestrated multi-service deployments on CapRover with automated GitHub Actions CI/CD pipelines. Managed integration with payment gateways (Stripe), email services (SendGrid), and cloud vision APIs for document processing.

Architecture: Microservices with PostgreSQL, Redis/BullMQ job queues, Prisma ORM, NextAuth 5 authentication, and Docker containerization. Implemented multi-stage Docker builds, disk cleanup automation, and CI timeout optimization. Deployed to production with monitoring dashboards and comprehensive deployment documentation.

Next.js 14FastifyFastAPIDockerOpenTelemetryCapRoverGitHub ActionsPostgreSQLRedis/BullMQMicroservices

Research Engineer

Excalibur s.r.o, Bratislava, Slovakia
July 2024 - Present

Cybersecurity research focusing on secure application development, AI-powered security solutions, and zero-trust architecture implementation.

CybersecurityAI/MLZero-TrustWeb Security

IT Consultant - Lead Frontend Developer

Mantro s.r.o, Trnava, Slovakia
February 2023 - December 2023

Led modern web application development using React 18, TypeScript, and cutting-edge frontend technologies with full-stack capabilities.

React 18TypeScriptAngular 15Docker/K8sCypress

+ 4 more positions - see full resume

Technical Skills

Frontend development

ReactExpert
90%
TypescriptIntermediate
70%
JavaScriptAdvanced
80%
CSS/TailWindCSSIntermediate
60%

Backend development

Node.jsBeginner
40%
PythonIntermediate
70%
C#Intermediate
60%
C++Intermediate
70%

AI & Machine Learning

Generative AIIntermediate
70%
Machine LearningIntermediate
60%
AI ResearchIntermediate
70%
Data AnalysisAdvanced
80%

User Tests

CypressIntermediate
70%
JestIntermediate
70%
SpecIntermediate
50%

UX development

FigmaBeginner
40%
SketchBeginner
40%
Adobe XDBeginner
40%

JavaScript Frameworks

RemixExpert
90%
SvelteBeginner
40%
NextJsBeginner
30%
AngularIntermediate
60%

Database Management

PostgreSqlIntermediate
60%
MySQLBeginner
40%
SQLiteBeginner
40%

DevOps & Security

GitExpert
90%
CybersecurityAdvanced
80%
Zero-Trust ArchitectureIntermediate
70%
Web SecurityAdvanced
80%
DockerIntermediate
70%
BashBeginner
40%
NginxBeginner
30%

Operating System

Microsoft WindowsAdvanced
80%
MacOsIntermediate
60%
LinuxIntermediate
70%

Spoken languages

EnglishExpert
100%
KiswahiliExpert
100%
DholuoExpert
100%
SlovakBeginner
20%

Mobile development

Java (Android)Beginner
40%

Professional Skills

Professional & Leadership Skills

Team LeadershipExpert
90%
Project ManagementExpert
90%
Strategic PlanningAdvanced
80%
Cross-functional CollaborationExpert
90%
Technical MentoringAdvanced
80%
Client Relationship ManagementAdvanced
80%
Research & DevelopmentExpert
90%
Problem SolvingExpert
90%

Communication & Interpersonal

Technical CommunicationExpert
90%
Public SpeakingAdvanced
80%
Cross-cultural CommunicationExpert
90%
Stakeholder ManagementAdvanced
80%
Training & PresentationAdvanced
80%
DocumentationExpert
90%
Conflict ResolutionIntermediate
70%
Team BuildingAdvanced
80%

Business & Analytical

Business DevelopmentAdvanced
80%
Product StrategyAdvanced
80%
Risk AssessmentAdvanced
80%
Data-driven Decision MakingExpert
90%
Process OptimizationAdvanced
80%
Quality AssuranceExpert
90%
Innovation ManagementAdvanced
80%
Agile MethodologiesAdvanced
80%

Publications

Atlas-based 3D medical image segmentation algorithm

Thesis Article

2021

Improvement and handling of segmentation model with an inflation term

Tatra Mountains Mathematical Publications

2021

Efficient 3D shape registration by using distance maps and stochastic gradient descent method

Tatra Mountains Mathematical Publications 75 (1), 81-102

2020

+ 2 more publications

Conferences

Advances in Architectural, Civil and Environmental Engineering 2021 (AACEE 2021)

Bratislava

August 2021

Algoritmy 2020

Podbanske, Slovakia

October 2020

European Research Night 2019

Heidelberg, Germany

July 2019

+ 2 more conferences

Awards

Distinction – Structured Masters in Mathematical Sciences

African Institute for Mathematical Sciences

August 2015

First Class Honors – Bachelor of Science (Applied Statistics, with IT)

Maseno University

August 2014

Record of Achievement: Enterprise Deep Learning With TensorFlow

openSAP - SAP's Educational Platform

December 2017

Featured Projects

Explore my open-source projects with detailed technology stacks and comprehensive descriptions

CarePro: Healthcare Home Care Management Platform
View Project

CarePro: Healthcare Home Care Management Platform

Modern SPA for managing home care services across Kenya. Built with Next.js 14 frontend featuring real-time job management, secure user authentication with NextAuth 5, integrated payment processing with Stripe, SMS communications with SendGrid, and comprehensive dashboard for care coordinators. Part of larger microservices ecosystem serving healthcare providers and families.

Next.js 14React 18TypeScriptPrisma ORMPostgreSQLNextAuth 5
Explore Project
Sleepy Tabs Guardian - Chrome Productivity Extension
View Project

Sleepy Tabs Guardian - Chrome Productivity Extension

Manifest V3 Chrome/Chromium extension that automatically sleeps inactive tabs, reins in high-memory pages, and visualizes telemetry through a React dashboard. Ships with options UI, consent workflows, IndexedDB history, and an optional Playwright companion bridging CDP actions via native messaging. Live demo at https://deaspo.github.io/sleepy-tabs/ with source on GitHub (https://github.com/deaspo/sleepy-tabs).

Chrome ExtensionsManifest V3ReactTypeScriptVitePlaywright
Explore Project
Verification Service: Document Verification Microservice
View Project

Verification Service: Document Verification Microservice

Enterprise-grade Node.js microservice for verifying Kenyan government documents (National IDs, Passports, KRA certificates, etc). Features asynchronous job processing with Redis/BullMQ, real OCR integration with Google Cloud Vision API, automated field extraction with AI, webhook notifications for verification results, and comprehensive RESTful API. Built with Fastify for high performance and scalability.

FastifyNode.jsTypeScriptRedisBullMQGoogle Cloud Vision
Explore Project
DeepFace Service: Biometric Face Recognition
View Project

DeepFace Service: Biometric Face Recognition

Self-hosted Python microservice for face recognition and biometric verification using DeepFace. Provides REST API for face matching, selfie verification, and identity confirmation with GPU/CPU flexibility. Integrated with verification service for document-to-selfie matching during identity verification workflows. Built with FastAPI and optimized for production deployment with comprehensive logging and error handling.

PythonFastAPIDeepFaceTensorFlowKerasComputer Vision
Explore Project
R-Instat: Open-Source Statistical Software
View Project

R-Instat: Open-Source Statistical Software

Comprehensive menu-driven statistics software powered by R, designed for ease of use by researchers and statisticians across Africa. Engineered complete VB.NET desktop application with advanced R.NET interoperability, specialized dialogs for agricultural and climate data analysis, SQLite data persistence, multi-language support (English/Swahili), professional CI/CD infrastructure, and Windows installer automation.

VB.NETWindows FormsR.NETStatisticsSQLiteCefSharp
Explore Project
Multi-City Weather Bot
View Project

Multi-City Weather Bot

Automated Twitter bot posting hourly weather updates for multiple cities (Bratislava, Nairobi, Kisumu). Features multi-city support with staggered updates, weather alerts, forecast predictions, and containerized deployment. Built with OpenWeatherMap API integration, Twitter API v2, and automated CI/CD pipeline.

PythonDockerTwitter APIOpenWeatherMap APIGitHub ActionsCaprover
Explore Project
Kavino Wine & Coffee Bar Website
View Project

Kavino Wine & Coffee Bar Website

Modern, responsive business website for a premium wine bar and coffee shop in Trnava, Slovakia. Features mobile-first design, smooth animations, interactive elements with sticky navigation, and integrated contact forms. Built with custom PHP backend, MySQL database, and modern frontend technologies.

PHPMySQLHTML5SCSSJavaScriptTailwind CSS
Explore Project
AI Browser Automation Agent & Analyzer
View Project

AI Browser Automation Agent & Analyzer

Sophisticated web automation platform powered by Azure OpenAI API for intelligent browser control and analysis. Features natural language task execution, session recording with rrweb, performance analysis, and React TypeScript dashboard. Built with Playwright for reliable browser automation and Express.js backend.

TypeScriptReactExpress.jsPlaywrightAzure OpenAIrrweb
Explore Project
Synthetic Data Agent - Kedro Project
View Project

Synthetic Data Agent - Kedro Project

Advanced Kedro pipeline architecture for AI-driven synthetic data generation through intelligent web interactions. Combines LLM decision-making with FastAPI web dashboard, session recording, and both automated and script-based modes. Built with Python data science stack and modern web technologies.

PythonKedroFastAPILLMPandasPlaywright
Explore Project
Kenya Radio Stations Mobile App
View Project

Kenya Radio Stations Mobile App

Native Android application for streaming Kenyan radio stations with seamless Google Cast integration. Features background playback, ExoPlayer media engine, Material Design 3 UI, and intelligent web scraping for station data. Built with modern Kotlin architecture and follows Android best practices.

KotlinAndroidExoPlayerGoogle CastJsoupMaterial Design
Explore Project

What People Say

Hear from clients and colleagues about their experiences working with me

“I had the chance to work with Poly in our AI research team at Excalibur s.r.o. He was one of the two developers on the team and also led the dev side. Poly is highly skilled in TypeScript and has hands-on experience with AI agents, Playwright, browser automation, and rrweb recording. He played a key role in turning our research ideas into production-ready solutions quickly and effectively. I especially valued his positive and constructive feedback, which kept the team motivated and made collaboration easier.”
HL
Huy Hung LE
“I had the privilege of working with Polycarp, and I was consistently impressed by his skills as a Software Engineer & Cybersecurity Specialist. He builds secure, scalable, and user-friendly applications with great attention to detail. Beyond his technical expertise, he is a creative problem-solver and a dependable teammate, making him a true asset to any engineering team.”
FO
Fanuel Otieno
“Polycarp finds original ways to solve tough problems, pushing himself to think differently. He readily shares his ideas, always glad to support others in their challenges.”
MB
Matúš Behun
“Very honest and reliable. Polycarp consistently demonstrates integrity and dependability in all professional interactions.”
DG
Dominique Gangla

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Are you looking for a cybersecurity expert or full-stack developer for your application? Someone with expertise in zero-trust architectures, AI/ML applications, and secure software development? Someone who can manage projects from research to production? Then you are in the right place. Get in Touch 📧.

Email
polycarpokock@live.com
Location
Bratislava, Slovakia
Twitter
@kidiwalogha
Instagram
@deaspo
Github
deaspo

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