Medical-grade health intelligence for consumers and teams: answers are grounded with citations from trusted clinical sources (Mayo Clinic, CDC, NIH, WHO, Cleveland Clinic, and peer-reviewed literature). I architected triple-source retrieval across medical knowledge bases, live web sources, and product databases so responses stay evidence-based and actionable. I implemented dual AI guardrails (input safety and output validation), emergency detection with localized guidance, multi-turn memory for coherent follow-ups, and a real-time product finder for medicines and supplements. Stack: Python, LangChain, LangGraph, RAG, Qdrant, Vite, React, Tailwind CSS, medical NLP patterns suited to regulated-style UX
Full Stack Engineer
Full-time available
Bio
John A. is a Full Stack Engineer with over 3 years of experience in web and mobile development, digital media design, and technical strategy leadership. John builds enterprise-grade applications using technologies like Python, TypeScript, React.js, Flutter, and React Native. He employs frameworks such as Django and Flask for backend development, and utilizes Firebase and PostgreSQL for robust data handling. His development practices include DevOps with Docker and Jenkins, API integration, and AI/ML tools for intelligent…
Expertise
PythonTypescriptJavascriptPHPReactNextJSFlutterMongoDBGitAWSReact NativeFigmaJenkinsFlaskSQLWordPressGoLang
Video Intro
Assessments
Projects
Cross-platform hotel access experience focused on digital keys, enterprise-style security assumptions, and operational clarity for front-desk workflows. I owned the mobile implementation with Flutter/Dart and Material Design 3 patterns, emphasizing fast check-in paths, biometrics-friendly flows, and wallet-style presentation where appropriate. Outcome: a smoother guest journey with less friction at check-in and stronger confidence in access control. Stack: Flutter, Dart, Material 3, biometric authentication patterns, NFC/wallet-style flows (as simulated or integrated per build)
Internal and academic-style research was slowing teams down: long literature review cycles and scattered sources. I built a retrieval-augmented assistant that summarizes papers, retrieves relevant literature, and answers research-style questions with traceable context. Stack: Python, TypeScript, Elasticsearch, LangChain, Ollama/OpenAI-style LLM workflows. Outcome: materially faster research iterations—on the order of ~20% time saved in the workflows we measured—by reducing manual search and re-reading loops
Most recipe sites skew premium or impractical for everyday households; Taste Tribe targets practical, budget-aware cooking. I built a community recipe product with ingredients, methods, and serving sizes, plus engagement features (comments, bookmarks, ratings) so home cooks can discover and save meals that fit real routines. Stack: web app deployed on Vercel (framework per your repo—React/Next as applicable). Outcome: clearer discovery for “everyday” meals and stronger retention through social proof and saved recipes
B2B-style media operations for Nairobi-based publishers and campaigns: high-volume editing, motion, and platform-native formats where turnaround is measured in hours. I developed and edited video content and interactive scripts, supporting live pressers, social campaigns, and event coverage with consistent brand execution. Stack: Adobe Creative Suite, DaVinci Resolve, motion and post pipelines; delivery tuned for social and broadcast-adjacent specs. Outcome: stronger audience engagement on key campaigns—historically on the order of ~30% lift where we could attribute to creative and packaging improvements
HealthyU Academy — Mobile Learning & Admin LMS
Multi-outlet health retail (40+ locations in Kenya): nutritionists and cosmeticians needed consistent training, quizzes, and role-based progression—not one-off PDFs. I built the staff-facing mobile experience (role-based tracks such as intern/nutritionist/expert, searchable quizzes, gated levels, and progress UX) and the HealthyU Admin web suite for operations: live dashboards, course and quiz CRUD, categories/tags, analytics (engagement, quiz performance, course popularity), and notifications. Stack: React Native (mobile), Firebase (as used), React web admin, REST/real-time data patterns for large catalogs (e.g., 100+ courses loaded operationally). Outcome: scalable training delivery across outlets with measurable completion signals and admin visibility into learning activity.
Healthy U — Employee Attendance & Visitor Management
Retail HQ and multi-site operations needed reliable people flows: employees clocking in/out, front-desk visitor intake, and admin reporting without spreadsheet chaos. I delivered a web admin experience with segmented modules (employees, attendance, visitors), search and time filters (today/week/month), CSV export for attendance, and CRUD for employee records; plus employee-facing entry (“Healthy U Employee Attendance System”) and visitor check-in flows with purpose and host routing. Stack: React (or your actual web stack), role-based admin patterns, tabular data + export, timestamped audit-style logs. Outcome: a single operational surface for HR and front desk instead of fragmented tools, with exportable records for reporting.
Built and shipped Teleios Connect, a cross-platform mobile app (Android + iOS) that helps communities access sermon/video content reliably, including low-connectivity environments. I implemented a production-ready architecture with React Native (Expo) + TypeScript, Firebase Auth/Firestore, and Bunny.net CDN for fast media delivery. Using an impact-first approach, I delivered: - Streaming + offline downloads so users can watch/listen anytime - Search and favorites to improve content discovery and retention - Background sync + notifications to keep content fresh without manual refresh - Secure authentication and scalable data model for reliable long-term growth Result: a smoother user experience, reduced friction for repeat engagement, and a mobile product foundation that can scale to larger user bases and content libraries. Published to both Google Play Store and Apple App Store, with OTA update support via Expo EAS Updates
Experience
Founder & Senior Developer
Norah Labs· AI/MLDec 2025 — Present- Founded and led technical development at Norah Labs, building intelligent software solutions where technical excellence meets human-centered design
- Spearhead development of enterprise-grade AI applications spanning healthcare intelligence systems, AI automation platforms, mobile apps, and retail execution platforms for diverse industries
- Lead full-stack development from architecture through deployment: roadmaps, technical strategy, and cross-functional collaboration with design, data, and domain stakeholders
- Drive adoption of production AI patterns—LangChain, LangGraph, RAG, and guardrails—to ship reliable, observable intelligent applications
- Own system architecture for scalable, secure, performance-oriented solutions with real-time analytics and multi-platform deployment
PythonTypeScriptReact.jsViteTailwind CSSLangChainLangGraphOpenAI APIOpenRouterQdrant DBRAG SystemsAI GuardrailsMedical NLPComputer VisionReact NativeExpoFlutterNext.jsWebMaster
Healthy U 2000 (E-commerce)· E-CommerceJan 2025 — Sep 2025- Built an AI support agent using LangGraph, LangChain, the OpenAI API, Qdrant, MongoDB, and Render—automating customer support and improving response efficiency by about 25% as the sole developer, alongside a data analyst
- Integrated AI APIs with iVend (POS) for loyalty data and personalized promotions through custom API development and system integration, contributing to about a 15% lift in customer retention
- Developed cross-platform mobile apps with React Native and Firebase, increasing user and staff engagement by about 20%
- Built responsive operations dashboards with React.js and D3.js, improving inventory tracking efficiency by about 15%
- Optimized the WordPress site on Siteground, reducing load times by about 30% through performance tuning
- Collaborated with cross-functional teams on internal tools that streamlined day-to-day workflows by about 10%
PythonTypreScriptReact.jsReact NativeFlutterFirebasePHPWordpressLangGraphLangChainOpenAI APIMongoDBQdrantREST APIsD3.jsAWSFigmaAdobe SuiteGraphic Designer
Philmax Ventures Limited· OtherNov 2020 — Apr 2021- Designed UI/UX prototypes for transit media ads, supporting stronger client engagement (about 25%)
- Collaborated with developers to keep visual consistency across digital platforms
- Produced print and digital artwork sized for PSV, campus, and OOH formats; supported pitch mockups and brand-compliant delivery
BrandingVideo Post-ProductionAdobe SuiteColor CorrectionDavinci Resolve(Editing Software)UX/UI PrototypingLead Graphic Designer & Communications Assistant
Eikonisma Solutions· OtherNov 2019 — Dec 2022- Designed and rolled out communication strategies for corporate and nonprofit clients—aligning messaging, channels, and stakeholder touchpoints with organizational goals
- Delivered training and workshops on workplace communication, client relationship management, conflict resolution, stakeholder communication, and brand management
- Produced graphic content, illustrations, and infographics from brief through final delivery, keeping quality and deadlines consistent across campaigns
- Maintained brand consistency across multi-channel marketing work and served as the liaison between marketing and design so projects shipped on schedule
- Generated fresh creative concepts and iterated with stakeholders from early direction through approved finals
Adobe Creative SuitePhotoshopIllustratorInDesignAfter EffectsPremiere ProBrand guidelinesVisual storytellingInfographic designGraphic Designer & Video Editor
Kenyans.co.ke (Boxraft)· Media & EntertainmentApr 2022 — Jul 2022- Edited fast-turn viral news video for digital distribution, matching the pace and standards of a national online newsroom
- Shot and edited short-form and social-first pieces for Kenyans’ platforms, from rough cut through publish-ready delivery
- Developed visual concepts and scripts for sports and editorial series (including TeamKenya-style storytelling) to drive engagement
- Photographed and retouched images for campaign and story packages; created and edited motion and static assets for ongoing posts
- Supported live operations: streaming press conferences and interviews to social platforms with reliable technical execution
- Covered events end-to-end—photo, video, livestream, and interviews—including large outdoor productions such as Totally Sold Out (TSO) at The Waterfront, Karen
- Brainstormed creative directions for client and internal campaigns (including major brand briefs), contributing ideas from concept through execution
VideographyPhotographyLive streamingMotion graphicsLightroomPhotoshopAfter EffectsPremiere ProAdobe Creative Suite
Education
Bachelor of Arts in Public Relations
Daystar UniversityNairobi, Kenya2025 — 2027Certification in Full-Stack Software Engineering
Moringa SchoolNairobi, Kenya2024 — 2024Certification in DevOps Engineering
Moringa SchoolNairobi, Kenya2023 — 2023Diploma in Communications and Media
Daystar UniversityNairobi, Kenya2020 — 2022
Full Stack Engineer
Full-time available
John is available for hire
Schedule an interview14 days risk-free trial · No commitments · We handle contracts and payroll
Bio
John A. is a Full Stack Engineer with over 3 years of experience in web and mobile development, digital media design, and technical strategy leadership. John builds enterprise-grade applications using technologies like Python, TypeScript, React.js, Flutter, and React Native. He employs frameworks such as Django and Flask for backend development, and utilizes Firebase and PostgreSQL for robust data handling. His development practices include DevOps with Docker and Jenkins, API integration, and AI/ML tools for intelligent…
- Projects completed8
- Hourly rate
- 3-4 years experience
- Nairobi, Kenya
- Member since Feb 2026
Industries
AI/MLE-CommerceOtherMedia & Entertainment
Expertise
PythonTypescriptJavascriptPHPReactNextJSFlutterMongoDBGitAWSReact NativeFigmaJenkinsFlaskSQLWordPressGoLang
Video Intro
Assessments
Projects
Medical-grade health intelligence for consumers and teams: answers are grounded with citations from trusted clinical sources (Mayo Clinic, CDC, NIH, WHO, Cleveland Clinic, and peer-reviewed literature). I architected triple-source retrieval across medical knowledge bases, live web sources, and product databases so responses stay evidence-based and actionable. I implemented dual AI guardrails (input safety and output validation), emergency detection with localized guidance, multi-turn memory for coherent follow-ups, and a real-time product finder for medicines and supplements. Stack: Python, LangChain, LangGraph, RAG, Qdrant, Vite, React, Tailwind CSS, medical NLP patterns suited to regulated-style UX
Cross-platform hotel access experience focused on digital keys, enterprise-style security assumptions, and operational clarity for front-desk workflows. I owned the mobile implementation with Flutter/Dart and Material Design 3 patterns, emphasizing fast check-in paths, biometrics-friendly flows, and wallet-style presentation where appropriate. Outcome: a smoother guest journey with less friction at check-in and stronger confidence in access control. Stack: Flutter, Dart, Material 3, biometric authentication patterns, NFC/wallet-style flows (as simulated or integrated per build)
Internal and academic-style research was slowing teams down: long literature review cycles and scattered sources. I built a retrieval-augmented assistant that summarizes papers, retrieves relevant literature, and answers research-style questions with traceable context. Stack: Python, TypeScript, Elasticsearch, LangChain, Ollama/OpenAI-style LLM workflows. Outcome: materially faster research iterations—on the order of ~20% time saved in the workflows we measured—by reducing manual search and re-reading loops
Most recipe sites skew premium or impractical for everyday households; Taste Tribe targets practical, budget-aware cooking. I built a community recipe product with ingredients, methods, and serving sizes, plus engagement features (comments, bookmarks, ratings) so home cooks can discover and save meals that fit real routines. Stack: web app deployed on Vercel (framework per your repo—React/Next as applicable). Outcome: clearer discovery for “everyday” meals and stronger retention through social proof and saved recipes
B2B-style media operations for Nairobi-based publishers and campaigns: high-volume editing, motion, and platform-native formats where turnaround is measured in hours. I developed and edited video content and interactive scripts, supporting live pressers, social campaigns, and event coverage with consistent brand execution. Stack: Adobe Creative Suite, DaVinci Resolve, motion and post pipelines; delivery tuned for social and broadcast-adjacent specs. Outcome: stronger audience engagement on key campaigns—historically on the order of ~30% lift where we could attribute to creative and packaging improvements
HealthyU Academy — Mobile Learning & Admin LMS
Multi-outlet health retail (40+ locations in Kenya): nutritionists and cosmeticians needed consistent training, quizzes, and role-based progression—not one-off PDFs. I built the staff-facing mobile experience (role-based tracks such as intern/nutritionist/expert, searchable quizzes, gated levels, and progress UX) and the HealthyU Admin web suite for operations: live dashboards, course and quiz CRUD, categories/tags, analytics (engagement, quiz performance, course popularity), and notifications. Stack: React Native (mobile), Firebase (as used), React web admin, REST/real-time data patterns for large catalogs (e.g., 100+ courses loaded operationally). Outcome: scalable training delivery across outlets with measurable completion signals and admin visibility into learning activity.
Healthy U — Employee Attendance & Visitor Management
Retail HQ and multi-site operations needed reliable people flows: employees clocking in/out, front-desk visitor intake, and admin reporting without spreadsheet chaos. I delivered a web admin experience with segmented modules (employees, attendance, visitors), search and time filters (today/week/month), CSV export for attendance, and CRUD for employee records; plus employee-facing entry (“Healthy U Employee Attendance System”) and visitor check-in flows with purpose and host routing. Stack: React (or your actual web stack), role-based admin patterns, tabular data + export, timestamped audit-style logs. Outcome: a single operational surface for HR and front desk instead of fragmented tools, with exportable records for reporting.
Built and shipped Teleios Connect, a cross-platform mobile app (Android + iOS) that helps communities access sermon/video content reliably, including low-connectivity environments. I implemented a production-ready architecture with React Native (Expo) + TypeScript, Firebase Auth/Firestore, and Bunny.net CDN for fast media delivery. Using an impact-first approach, I delivered: - Streaming + offline downloads so users can watch/listen anytime - Search and favorites to improve content discovery and retention - Background sync + notifications to keep content fresh without manual refresh - Secure authentication and scalable data model for reliable long-term growth Result: a smoother user experience, reduced friction for repeat engagement, and a mobile product foundation that can scale to larger user bases and content libraries. Published to both Google Play Store and Apple App Store, with OTA update support via Expo EAS Updates
Experience
Founder & Senior Developer
Norah Labs· AI/MLDec 2025 — Present- Founded and led technical development at Norah Labs, building intelligent software solutions where technical excellence meets human-centered design
- Spearhead development of enterprise-grade AI applications spanning healthcare intelligence systems, AI automation platforms, mobile apps, and retail execution platforms for diverse industries
- Lead full-stack development from architecture through deployment: roadmaps, technical strategy, and cross-functional collaboration with design, data, and domain stakeholders
- Drive adoption of production AI patterns—LangChain, LangGraph, RAG, and guardrails—to ship reliable, observable intelligent applications
- Own system architecture for scalable, secure, performance-oriented solutions with real-time analytics and multi-platform deployment
PythonTypeScriptReact.jsViteTailwind CSSLangChainLangGraphOpenAI APIOpenRouterQdrant DBRAG SystemsAI GuardrailsMedical NLPComputer VisionReact NativeExpoFlutterNext.jsWebMaster
Healthy U 2000 (E-commerce)· E-CommerceJan 2025 — Sep 2025- Built an AI support agent using LangGraph, LangChain, the OpenAI API, Qdrant, MongoDB, and Render—automating customer support and improving response efficiency by about 25% as the sole developer, alongside a data analyst
- Integrated AI APIs with iVend (POS) for loyalty data and personalized promotions through custom API development and system integration, contributing to about a 15% lift in customer retention
- Developed cross-platform mobile apps with React Native and Firebase, increasing user and staff engagement by about 20%
- Built responsive operations dashboards with React.js and D3.js, improving inventory tracking efficiency by about 15%
- Optimized the WordPress site on Siteground, reducing load times by about 30% through performance tuning
- Collaborated with cross-functional teams on internal tools that streamlined day-to-day workflows by about 10%
PythonTypreScriptReact.jsReact NativeFlutterFirebasePHPWordpressLangGraphLangChainOpenAI APIMongoDBQdrantREST APIsD3.jsAWSFigmaAdobe SuiteGraphic Designer
Philmax Ventures Limited· OtherNov 2020 — Apr 2021- Designed UI/UX prototypes for transit media ads, supporting stronger client engagement (about 25%)
- Collaborated with developers to keep visual consistency across digital platforms
- Produced print and digital artwork sized for PSV, campus, and OOH formats; supported pitch mockups and brand-compliant delivery
BrandingVideo Post-ProductionAdobe SuiteColor CorrectionDavinci Resolve(Editing Software)UX/UI PrototypingLead Graphic Designer & Communications Assistant
Eikonisma Solutions· OtherNov 2019 — Dec 2022- Designed and rolled out communication strategies for corporate and nonprofit clients—aligning messaging, channels, and stakeholder touchpoints with organizational goals
- Delivered training and workshops on workplace communication, client relationship management, conflict resolution, stakeholder communication, and brand management
- Produced graphic content, illustrations, and infographics from brief through final delivery, keeping quality and deadlines consistent across campaigns
- Maintained brand consistency across multi-channel marketing work and served as the liaison between marketing and design so projects shipped on schedule
- Generated fresh creative concepts and iterated with stakeholders from early direction through approved finals
Adobe Creative SuitePhotoshopIllustratorInDesignAfter EffectsPremiere ProBrand guidelinesVisual storytellingInfographic designGraphic Designer & Video Editor
Kenyans.co.ke (Boxraft)· Media & EntertainmentApr 2022 — Jul 2022- Edited fast-turn viral news video for digital distribution, matching the pace and standards of a national online newsroom
- Shot and edited short-form and social-first pieces for Kenyans’ platforms, from rough cut through publish-ready delivery
- Developed visual concepts and scripts for sports and editorial series (including TeamKenya-style storytelling) to drive engagement
- Photographed and retouched images for campaign and story packages; created and edited motion and static assets for ongoing posts
- Supported live operations: streaming press conferences and interviews to social platforms with reliable technical execution
- Covered events end-to-end—photo, video, livestream, and interviews—including large outdoor productions such as Totally Sold Out (TSO) at The Waterfront, Karen
- Brainstormed creative directions for client and internal campaigns (including major brand briefs), contributing ideas from concept through execution
VideographyPhotographyLive streamingMotion graphicsLightroomPhotoshopAfter EffectsPremiere ProAdobe Creative Suite
Education
Bachelor of Arts in Public Relations
Daystar UniversityNairobi, Kenya2025 — 2027Certification in Full-Stack Software Engineering
Moringa SchoolNairobi, Kenya2024 — 2024Certification in DevOps Engineering
Moringa SchoolNairobi, Kenya2023 — 2023Diploma in Communications and Media
Daystar UniversityNairobi, Kenya2020 — 2022
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