Available for Opportunities · Nairobi, Kenya
    0+Years Exp.
    0+WebApps
    0+Bots Shipped
    0%Uptime SLA

    CTO & Full-Stack Engineer shipping financial infrastructure, AI systems, and Web3 platforms from Nairobi. 5+ years building for real users with real money on the line.

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    DENNIS

    MWANGI
    WANJA
    01 — WHO I AM

    Building Systems
    People Trust

    I'm Dennis Mwangi Wanja — a CTO and Full-Stack Engineer who ships financial infrastructure, AI products, and Web3 systems that work under real load, real money, and real scrutiny. Based in Nairobi, Kenya, operating globally across 5+ countries.

    I lead hands-on — clear architecture, fast execution, strong standards. My work spans KCB Group banking infrastructure, cross-border FX aggregation across Africa, HFT trading platforms, and AI-powered consumer products.

    KENYAUGANDARWANDAETHIOPIADUBAIBANGLADESH
    Capability Cards
    Swipe or use arrows to explore
    1/4
    01Architecture

    Security-first systems that survive audits

    0CONF

    High-availability microservices with disciplined failure modes, rollback-safe deploys, and full observability — designed for real money and real scrutiny.

    PerformanceObservability
    ComplianceAudit-ready
    StackHA DesignRollback-safe
    Reliability
    99.9%SLA
    Deploy style
    Zerodowntime
    Reach
    Multiregion
    Completeness95%
    02 — AI Ecosystem

    Building with AI
    fromDayOne

    I don't just build AI systems — I build with AI. Every tool here is part of my daily workflow. Hover any pill to explore.

    16+AI Tools
    3yAI-first Dev
    ∞Iterations
    Claude Code
    Claude CodeAgentic Engineering
    ChatGPT
    ChatGPTArchitecture & Research
    GitHub Copilot
    GitHub CopilotPair Programmer
    Gemini AI
    Gemini AIMultimodal AI
    Cursor AI
    Cursor AIAI-Powered IDE
    Grok AI
    Grok AIReal-time Analysis
    Perplexity
    PerplexityResearch Intelligence
    Mistral AI
    Mistral AILightweight LLM
    Claude Code
    Claude CodeAgentic Engineering
    ChatGPT
    ChatGPTArchitecture & Research
    GitHub Copilot
    GitHub CopilotPair Programmer
    Gemini AI
    Gemini AIMultimodal AI
    Cursor AI
    Cursor AIAI-Powered IDE
    Grok AI
    Grok AIReal-time Analysis
    Perplexity
    PerplexityResearch Intelligence
    Mistral AI
    Mistral AILightweight LLM
    Claude Code
    Claude CodeAgentic Engineering
    ChatGPT
    ChatGPTArchitecture & Research
    GitHub Copilot
    GitHub CopilotPair Programmer
    Gemini AI
    Gemini AIMultimodal AI
    Cursor AI
    Cursor AIAI-Powered IDE
    Grok AI
    Grok AIReal-time Analysis
    Perplexity
    PerplexityResearch Intelligence
    Mistral AI
    Mistral AILightweight LLM
    Claude Code
    Claude CodeAgentic Engineering
    ChatGPT
    ChatGPTArchitecture & Research
    GitHub Copilot
    GitHub CopilotPair Programmer
    Gemini AI
    Gemini AIMultimodal AI
    Cursor AI
    Cursor AIAI-Powered IDE
    Grok AI
    Grok AIReal-time Analysis
    Perplexity
    PerplexityResearch Intelligence
    Mistral AI
    Mistral AILightweight LLM
    LangChain
    LangChainLLM Orchestration
    OpenAI Codex
    OpenAI CodexCode Generation
    Hugging Face
    Hugging FaceModel Hub
    Windsurf
    WindsurfAI IDE
    Anthropic
    AnthropicFoundation Models
    Pinecone
    PineconeVector Database
    Vercel AI SDK
    Vercel AI SDKAI Streaming
    Supabase AI
    Supabase AIVector Store
    LangChain
    LangChainLLM Orchestration
    OpenAI Codex
    OpenAI CodexCode Generation
    Hugging Face
    Hugging FaceModel Hub
    Windsurf
    WindsurfAI IDE
    Anthropic
    AnthropicFoundation Models
    Pinecone
    PineconeVector Database
    Vercel AI SDK
    Vercel AI SDKAI Streaming
    Supabase AI
    Supabase AIVector Store
    LangChain
    LangChainLLM Orchestration
    OpenAI Codex
    OpenAI CodexCode Generation
    Hugging Face
    Hugging FaceModel Hub
    Windsurf
    WindsurfAI IDE
    Anthropic
    AnthropicFoundation Models
    Pinecone
    PineconeVector Database
    Vercel AI SDK
    Vercel AI SDKAI Streaming
    Supabase AI
    Supabase AIVector Store
    LangChain
    LangChainLLM Orchestration
    OpenAI Codex
    OpenAI CodexCode Generation
    Hugging Face
    Hugging FaceModel Hub
    Windsurf
    WindsurfAI IDE
    Anthropic
    AnthropicFoundation Models
    Pinecone
    PineconeVector Database
    Vercel AI SDK
    Vercel AI SDKAI Streaming
    Supabase AI
    Supabase AIVector Store

    Hover any tool to see its role in my stack — 16 tools and counting

    See Full Stack

    03 — Work

    Shipped&
    Live.

    Not side projects. Not demos. Production systems serving real users.

    Lively Root
    Live · US-wide
    E-Commerce · Horticulture

    Lively Root

    Direct-to-consumer live plant platform with AI plant-finder quiz, subscription boxes, and a corporate gifting portal.

    B2B+B2CRevenue
    4+Press
    ShopifyPlatform
    Next.jsTypeScriptShopifyStripe
    Visit livelyroot.com
    Walbi Exchange
    Live · On-Chain
    DeFi · Web3

    Walbi Exchange

    AI-assisted DEX with automated market making, predictive trading signals and composable on-chain execution.

    AMMMarket
    AISignals
    EVMChain
    SolidityReactThe GraphAI/ML
    Visit walbi.com
    Edge Cards
    Production · KCB
    Fintech · Banking

    Edge Cards

    Multi-currency card ecosystem inside KCB Group infrastructure. Banking-grade microservices with security-first design.

    KCBBank
    Multi-FXCurrency
    99.9%Uptime
    React NativeNext.jsPostgreSQLRedis
    Visit edge.cards
    ShopPop.ink
    AI-Powered · Live
    AI · E-Commerce

    ShopPop.ink

    AI-powered storefront with Gemini personalisation — real-time product recommendations and seamless Stripe checkout.

    GeminiAI
    Real-timeRecs
    StripePay
    Next.jsGemini AIStripeTailwind
    Visit shoppop.ink
    TinyAssistants
    Live · AI Platform
    LLM · RAG Architecture

    TinyAssistants

    Conversational AI on RAG architecture with vector DB retrieval and LLM orchestration. Context-aware career guidance at scale.

    RAGArch
    LLMEngine
    VectorDB
    LLMsVector DBRAGPython
    Visit tinyassistants.ai
    DollarsApp
    Fintech · Pan-Africa
    FX · Pan-Africa

    DollarsApp

    Real-time FX rate aggregation from major commercial banks across Africa — normalised live data feeds across 4 countries.

    4Countries
    <300msLatency
    B2BAPI
    Node.jsPostgreSQLKafkaTypeScript
    View in Experience
    04 — Craft

    Toolsofthe
    Craft

    TypeScriptTypeScript
    ReactReact
    Next.jsNext.js
    Node.jsNode.js
    PythonPython
    RustRust
    SoliditySolidity
    PostgreSQLPostgreSQL
    DockerDocker
    AWSAWS
    KafkaKafka
    React NativeReact Native
    GraphQLGraphQL
    RedisRedis
    KubernetesKubernetes
    AzureAzure
    05 — Blockchain

    On-Chain Trading
    &DeFiInfra

    MEV strategies, algorithmic trading bots, exchange SDKs, and DeFi protocol integrations — shipped across EVM, Solana, and every major CEX. Hover any pill to explore.

    10+Chains
    20+Algo Strategies
    6+Exchange SDKs
    Ethereum
    EthereumMEV Bots · Rust Infra
    Solana
    SolanaOn-Chain Programs
    Arbitrum
    ArbitrumL2 DEX Strategies
    Avalanche
    AvalancheSubnet Trading
    BSC
    BSCDeFi Automation
    Polkadot
    PolkadotCross-Chain Bridges
    Polygon
    PolygonGas-Optimised Bots
    Optimism
    OptimismL2 Execution
    Base
    BaseL2 DeFi Protocols
    Aave
    AaveLending Protocol Dev
    Curve
    CurveAMM Integrations
    Uniswap
    UniswapDEX / AMM Strategies
    Ethereum
    EthereumMEV Bots · Rust Infra
    Solana
    SolanaOn-Chain Programs
    Arbitrum
    ArbitrumL2 DEX Strategies
    Avalanche
    AvalancheSubnet Trading
    BSC
    BSCDeFi Automation
    Polkadot
    PolkadotCross-Chain Bridges
    Polygon
    PolygonGas-Optimised Bots
    Optimism
    OptimismL2 Execution
    Base
    BaseL2 DeFi Protocols
    Aave
    AaveLending Protocol Dev
    Curve
    CurveAMM Integrations
    Uniswap
    UniswapDEX / AMM Strategies
    Ethereum
    EthereumMEV Bots · Rust Infra
    Solana
    SolanaOn-Chain Programs
    Arbitrum
    ArbitrumL2 DEX Strategies
    Avalanche
    AvalancheSubnet Trading
    BSC
    BSCDeFi Automation
    Polkadot
    PolkadotCross-Chain Bridges
    Polygon
    PolygonGas-Optimised Bots
    Optimism
    OptimismL2 Execution
    Base
    BaseL2 DeFi Protocols
    Aave
    AaveLending Protocol Dev
    Curve
    CurveAMM Integrations
    Uniswap
    UniswapDEX / AMM Strategies
    Ethereum
    EthereumMEV Bots · Rust Infra
    Solana
    SolanaOn-Chain Programs
    Arbitrum
    ArbitrumL2 DEX Strategies
    Avalanche
    AvalancheSubnet Trading
    BSC
    BSCDeFi Automation
    Polkadot
    PolkadotCross-Chain Bridges
    Polygon
    PolygonGas-Optimised Bots
    Optimism
    OptimismL2 Execution
    Base
    BaseL2 DeFi Protocols
    Aave
    AaveLending Protocol Dev
    Curve
    CurveAMM Integrations
    Uniswap
    UniswapDEX / AMM Strategies
    Hyperliquid
    HyperliquidHyperDash Trading Bots
    DextraBot
    DextraBotAutomated DEX Trading
    TrySuper
    TrySuperSuper Trading Engine
    Bybit
    Bybitbybit_rs · Rust SDK
    Binance
    BinanceMulti-Strategy Execution
    Kraken
    KrakenAlgo Trading
    Rust
    RustMEV & Exchange Infra
    Solidity
    SoliditySmart Contracts
    Ethers.js
    Ethers.jsOn-Chain Interaction
    SushiSwap
    SushiSwapDEX Aggregation
    Walbi Exchange
    Walbi ExchangeOrder Matching · Copy Trading
    HyperDash
    HyperDashTrading Interface
    Hyperliquid
    HyperliquidHyperDash Trading Bots
    DextraBot
    DextraBotAutomated DEX Trading
    TrySuper
    TrySuperSuper Trading Engine
    Bybit
    Bybitbybit_rs · Rust SDK
    Binance
    BinanceMulti-Strategy Execution
    Kraken
    KrakenAlgo Trading
    Rust
    RustMEV & Exchange Infra
    Solidity
    SoliditySmart Contracts
    Ethers.js
    Ethers.jsOn-Chain Interaction
    SushiSwap
    SushiSwapDEX Aggregation
    Walbi Exchange
    Walbi ExchangeOrder Matching · Copy Trading
    HyperDash
    HyperDashTrading Interface
    Hyperliquid
    HyperliquidHyperDash Trading Bots
    DextraBot
    DextraBotAutomated DEX Trading
    TrySuper
    TrySuperSuper Trading Engine
    Bybit
    Bybitbybit_rs · Rust SDK
    Binance
    BinanceMulti-Strategy Execution
    Kraken
    KrakenAlgo Trading
    Rust
    RustMEV & Exchange Infra
    Solidity
    SoliditySmart Contracts
    Ethers.js
    Ethers.jsOn-Chain Interaction
    SushiSwap
    SushiSwapDEX Aggregation
    Walbi Exchange
    Walbi ExchangeOrder Matching · Copy Trading
    HyperDash
    HyperDashTrading Interface
    Hyperliquid
    HyperliquidHyperDash Trading Bots
    DextraBot
    DextraBotAutomated DEX Trading
    TrySuper
    TrySuperSuper Trading Engine
    Bybit
    Bybitbybit_rs · Rust SDK
    Binance
    BinanceMulti-Strategy Execution
    Kraken
    KrakenAlgo Trading
    Rust
    RustMEV & Exchange Infra
    Solidity
    SoliditySmart Contracts
    Ethers.js
    Ethers.jsOn-Chain Interaction
    SushiSwap
    SushiSwapDEX Aggregation
    Walbi Exchange
    Walbi ExchangeOrder Matching · Copy Trading
    HyperDash
    HyperDashTrading Interface

    Hover any chain or tool to see what I built — shipped in production

    See Full Stack
    05 — Career

    WhereI've
    Built

    Oct 2022 — Present
    Senior Fullstack & AI Engineer
    NGENI Labs· Nairobi, Kenya

    Leading architecture of Web3 & AI products. Built 20+ DApps across major EVM chains and Solana. Delivering scalable solutions used by hundreds of thousands of users across Africa and globally.

    Web3AI / LLMSolanaEVMEdge CardsKCB Group
    Jan 2023 — Dec 2024
    CTO / Lead Engineer
    Dollar Markets Africa· Nairobi, Kenya

    Created DollarsApp — a real-time FX aggregator used across East Africa. Designed high-performance backends handling millions of transactions with sub-second latency.

    FintechFX AggregationNode.jsPostgreSQLDollarsApp
    Dec 2021 — 2025
    Senior Software Developer
    EQAM Capital· Remote / Nairobi

    Developed 20+ trading bots and algorithms. Built a unified trading interface across 10+ exchanges with sub-300ms execution latency.

    Trading BotsHFT <300msPython10+ ExchangesRisk Engine
    06 — Credentials

    Certified &
    Verified.

    AI Engineering

    Microsoft

    Azure AI Engineer Associate

    FinTech

    CFTE

    Applied AI in Finance

    Web3

    Blockchain Council

    AI in Blockchain

    Blockchain

    NGENI Labs

    Blockchain Expert

    Engineering

    5+ Years Production

    Full-Stack Engineering Excellence

    DeFi

    EQAM Capital

    Quantitative Automation & DeFi Systems

    07 — Let's Talk

    BuildTogether

    Open for Senior Engineering, CTO, and technical consulting roles in AI, Fintech, Web3, and Banking infrastructure.

    dennismwangiwanja@gmail.comLinkedIn Profile
    @DENNIS-CODESTelegramWhatsAppPortfolio