CEO & Founder @ NiGaT IT System

    Chrispus Gatia
    Mwangi

    Full-Stack Software Engineer & IT Specialist passionate about building intelligent, scalable systems and solving complex technical challenges.

    Full-Stack Developer
    IT Specialist
    Chrispus Gatia Mwangi — Full-Stack Developer and IT Specialist

    Let's Connect

    Open to new opportunities

    Contact Info

    gatiachrispus@gmail.com+254 704496146
    Nairobi, Kenya

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    © 2026 Chrispus Gatia Mwangi. All rights reserved.

    Professional Experience

    My professional journey in tech

    dMRV Technical Expert

    Nova Cert LLC

    May 2026 - Present Remote / Site VisitsContract

    Serving as dMRV Technical Expert for NOVA CERT, providing independent technical review of digital MRV (measurable, reportable, verifiable) systems for Gold Standard-registered carbon projects.

    Key Achievements:

    • Built and iterated a formal VV-09 Findings Report across three assessment rounds (4 FARs, 19 Clarification Requests, 0 CARs)
    • Identified material cross-source data inconsistencies in a Rwanda/Kenya sensor validation dataset (n=216), where the same underlying data produced conflicting accuracy figures and model coefficients across four independent project documents
    • Uncovered a technical contradiction between a developer's formal clarification response and a peer-reviewed journal publication (Water Research, 2026) regarding sensor hardware specifications
    • Adapted and produced a formal dMRV Validation Report using structured document templates while preserving full formatting integrity
    • Drafted consolidated technical clarification requests reconciling dataset and model discrepancies for client resolution

    Technologies:

    Gold Standard dMRV ProtocolIoT Sensor ValidationML Model AuditingGHG MRV SystemsVVB StandardsDOCX/XML Document Engineering

    Full-Stack Developer & IT Officer

    City Eye Hospital

    August 2022 - Present Nairobi, KenyaFull-time

    Leading full-stack development initiatives and IT infrastructure management for a healthcare facility.

    Key Achievements:

    • Led full-stack development of company website using Laravel, React, and Bootstrap, achieving 35% increase in visitor traffic
    • Built high-quality UI elements with React and Tailwind CSS, enhancing user engagement by 40%
    • Developed scalable backend services with Node.js and Express, reducing response times by 50%
    • Implemented VOIP systems reducing telecommunication costs by 25%

    Technologies:

    ReactLaravelNode.jsPostgreSQLAWSGraphQL

    Data Scientist

    goCode Softwares

    January 2023 - Present RemoteFull-time

    Leading data science initiatives and building machine learning models that drive business decisions.

    Key Achievements:

    • Built ML models that increased customer retention by 25%
    • Led team of junior data scientists on analytics projects
    • Implemented real-time analytics dashboard for business intelligence

    Technologies:

    PythonTensorFlowPower BISQLMachine Learning

    AI Data Trainer (Coding Expert)

    Remotasks

    July 2023 - February 2024 RemoteContract

    Annotated and reviewed datasets for machine learning models, ensuring high data quality.

    Key Achievements:

    • Annotated and reviewed datasets achieving 98% data accuracy
    • Developed Python and Node.js scripts to automate data processing, improving efficiency by 35%
    • Collaborated with global AI specialists to refine algorithms

    Technologies:

    PythonNode.jsMachine LearningData Annotation

    ICT Intern

    Ministry of Devolution and ASALs

    June 2021 - September 2021 Nairobi, KenyaInternship

    Performed IT support and infrastructure management for government operations.

    Key Achievements:

    • Reduced downtime by 15% through hardware/software troubleshooting
    • Automated user requirement collection, streamlining workflows by 20%
    • Conducted staff training increasing proficiency by 30%

    Technologies:

    NetworkingPythonData VisualizationIT Support

    Freelance Full-Stack Web Developer

    Self-Employed

    June 2020 - Present Nairobi, KenyaFreelance

    Designing and developing custom web solutions for diverse clients.

    Key Achievements:

    • Designed custom web solutions using React, Node.js, Express, GraphQL, and PostgreSQL
    • Enhanced website features for local NGO resulting in 30% increase in user engagement
    • Built experimental web3 projects including wallet integrations and onchain data handling

    Technologies:

    ReactNode.jsGraphQLPostgreSQLWeb3Solidity

    Skills

    Technologies and tools I work with

    AI & ML

    AI TrainingPrompt EngineeringAI Model Fine-tuningMachine Learning

    Software Development

    Tailwind CSSJavaScriptReactTypeScriptNode.jsExpressLaravelPostgreSQLMySQLPHPGraphQLPythonASP.NET CoreMongoDBC#

    Tools

    Hardware TroubleshootingSoftware TroubleshootingGitSystem AdministrationVOIP SystemsDockerNetwork ConfigurationAWSActive DirectoryAzure

    Education

    Academic background

    Bachelor of Science in Information Technology

    Jomo Kenyatta University of Agriculture and Technology

    2019 - 2022 Nairobi, KenyaInformation Technology

    Comprehensive study of software development, networking, databases, and IT systems.

    Honors:

    Second Class Honors

    Diploma in Information Technology

    Jomo Kenyatta University of Agriculture and Technology

    2016 - 2018 Nairobi, KenyaInformation Technology

    Foundation in programming, networking, and IT support.

    Honors:

    Credit

    Certifications

    Professional credentials

    Article 6.4 Accreditation & V&V Training

    Nova Cert

    2026

    Article 6.4 MechanismValidation and Verification (V&V)Carbon Credit Accreditation+2

    Google AI Essentials

    Google

    2025

    Prompt engineeringArtificial Intelligence (AI)AI Tools+4
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    Google Data Analytics Professional Certificate

    Coursera / Google

    2025

    Data AggregationData AnalyticsData Cleaning+1
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    Cybersecurity and Emerging Technologies Awareness

    ICT Authority, Kenya

    2024

    CybersecurityThreat DetectionIncident Response
    Verify credential

    Data Security Certification

    Great Learning

    2023

    CybersecurityNetwork SecurityData Protection+3
    Verify credential

    IBM Cybersecurity Certifications

    IBM SkillsBuild

    2021

    CybersecurityInsident Response Platform
    Verify credential

    IBM Cybersecurity Certifications

    IBM SkillsBuild

    2021

    Cybersecurity PrinciplesIncident Response
    Verify credential

    About Me

    What I do and what I'm passionate about

    LEADERSHIP

    CEO & Founder

    NiGaT IT Systems

    Leading innovation in technology solutions. Specialized in full-stack development, AI training, and building scalable enterprise systems. Dedicated to transforming businesses through cutting-edge technology and strategic IT infrastructure.

    Full-Stack Development

    End-to-end web applications with React, Laravel, Node.js, and cloud integration.

    AI & ML

    AI model training, fine-tuning, prompt engineering, and machine learning implementation with modern frameworks.

    IT Support & Infrastructure

    System administration, network setup, cybersecurity basics, and technical problem-solving.

    IT Consultancy

    Technology strategy, infrastructure consulting, digital transformation, and technical advisory services.

    Articles & Blog

    Insights, tutorials, and thoughts on tech

    Jan 15, 2025· 1 min read

    Building Scalable APIs with GraphQL and Node.js

    A comprehensive guide to designing efficient GraphQL schemas and resolvers for production applications. Learn best practices, optimization techniques, and real-world patterns.

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    Nov 20, 2024· 1 min read

    Optimizing React Applications for Performance

    Best practices for building fast, responsive React applications with proper memoization, lazy loading, and code splitting techniques.

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    Dec 8, 2024· 1 min read

    Introduction to Web3 Development for Web Developers

    Transitioning from traditional web development to blockchain and decentralized applications. Understand smart contracts, wallets, and DApp architecture.

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    Featured Projects

    Recent work and experiments

    City Eye Foundation Website project preview2026
    Web Development

    City Eye Foundation Website

    Support eye care programs across East Africa. Discover how City Eye Foundation is bringing sight-saving care to communities through outreach, surgery, and early screening.

    reactlaraveltailwind css+4
    Read more
    Pesapal Junior Dev Challenge - In-Memory RDBMS project preview2026
    System Development

    Pesapal Junior Dev Challenge - In-Memory RDBMS

    Built a simple relational database from scratch in Python featuring SQL-like queries, CRUD operations, primary/unique keys, basic hash indexing, INNER JOIN, interactive REPL, and Flask web app.

    PythonFlaskSQL+1
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    Eye&U Hospital Website project preview2025
    Web Development

    Eye&U Hospital Website

    Developed a full-stack hospital management website using Laravel, Statamic CMS, React, and MySQL, featuring patient appointment booking and email notifications.

    LaravelReactMySQL+1
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    City Eye Hospital Website project preview2023
    Web Development

    City Eye Hospital Website

    Developed a dynamic, user-friendly full-stack website with React frontend, Node.js backend, and PostgreSQL database for patient engagement and bookings.

    ReactNode.jsPostgreSQL+1
    Read more
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