Jayson Ashioya

Middle

Registration: 05.08.2025

Specialization: Quantitative Developer / Full-Stack Software Engineer

— I am a Full-Stack Engineer and Quantitative Developer with over seven years of experience delivering secure and scalable solutions across fintech, decentralized finance, and Web3. — I have led more than thirty projects from concept to launch, blending precision, performance, and purpose. — My skills include React, Node.js, Ethereum, Solana, algorithmic trading, smart contracts, and autonomous systems. — I focus on transforming complex financial logic into tools that drive real-world value. Sample GitHub Projects and Active Lead Projects Contributions: — Vegan Rob’s Token – Tokenizing vegan snacks to bridge food shortage ($VRT). — HODL Markets – Dynamic Bucket HODL Momentum-Volatility Signal Generation and Trading Strategy. — AI Robo-Credit Underwriter – Multi-Agent RL & Risk-Aware Learning. — QuantumFX: Modular, High-Performance FX Risk Analytics & Scenario Engine. — CrypTrader: High-Performance Modular Crypto Trading & Merchant Integration Library. — Crypto Risk Premia Dashboard - Quant-grade intelligence for decoding hidden risk premia in crypto.

JavaScript C++ AWS nosql Julia MongoDB Python React Native Git PostgreSQL TypeScript go Next.js Rust Kubernetes Docker Solidity React

Portfolio

Farm-to-Us

● Developed a quote-matching system using Node.js, PostgreSQL, and Django, Golang event and security listeners meant to triple contract closure rates across the platform. ● Architected NFT-backed lending engine with Chainlink and React, that enables risk-adjusted credit access with zero defaults. ● Built DAO and escrow smart contracts using Solana and Rust to govern agri-economic decisions, reducing disputes by over 80%. ● Integrated LLaMA-2-based AI agents using LangChain and Supabase to reduce support workload by 70% and boost user engagement. ● Architected multi-token smart contracts in Solana and Rust to deliver a 2x yield improvement on tokenized farming assets.

Jamii’s Giving

● Developed a decentralized donation platform using Solidity and IPFS, reducing fund-matching delays by 10x. ● Built milestone-based smart contracts with Web3.js for automated fund releases, increasing donor retention by 30%. ● Designed real-time donor dashboards using React and Supabase to enhance transparency and impact visibility. ● Automated deployments with Docker and GitHub Actions to reduce time-to-launch and eliminate manual setup errors. ● Implemented i18n in Next.js to support multiple languages and expand accessibility to users in 4+ regions.

ApexNest Holdings

● Developed machine learning credit risk models using Python, Flask, and Node.js, increasing default prediction accuracy by 25% across multi-asset portfolios. ● Built performance dashboards for investment teams using React, Next.js, and AWS, reducing reporting cycles by 40% and improving decision-making. ● Designed and deployed pricing models for fixed-income assets using QuantLib and NumPy, enabling consistent and transparent valuations. ● Implemented trading strategy pipelines powered by WebSocket APIs and Solana, optimizing execution in response to live market data. ● Led collaborative projects across 3-tier architecture systems, integrating frontend dashboards, backend APIs, and Ethereum smart contract logic to drive a 29.5% improvement in investment ROI.

Skills

C++

JavaScript

TypeScript

Python

Julia

Rust

Solidity

React

React Native

Next.js

NoSQL

PostgreSQL

MongoDB

Kubernetes

Docker

AWS

Git

Work experience

Full-Stack Software Developer (Primary Role)

since 07.2020 - Till the present day |QuantLabs Africa

ERP, POS, MongoDB, Express.js, React, Node.js, Python, Binance API, CI/CD

Key Responsibilities & Achievements: ● Built several custom web-apps using MERN and PERN stack for various sectoral application ● crypto trading bots using Python and Binance API, improving execution speed by 30%. ● Designed ERP and POS systems with Django and PostgreSQL to digitize operations for 150+ MSMEs. ● Created internal API specs using Swagger and Postman to streamline onboarding and integration. ● Launched ML microservices with FastAPI and MLFlow for customer behaviour insights. ● Managed CI/CD pipelines using Docker and GitHub Actions to reduce outages and improve deploy stability.

Co-Founder / Blockchain Architect (Advisory Role)

since 03.2025 - Till the present day |Farm-to-Us

Node.js, PostgreSQL, Django, Golang

Key Responsibilities & Achievements: ● Provided strategic technical direction and architectural blueprints for a quote-matching system (Node.js, PostgreSQL, Django, Golang event listeners) designed to triple contract closure rates. ● Defined specifications for an NFT-backed lending engine integrating Chainlink and React to enable risk-adjusted credit access with zero defaults. ● Oversaw the design of DAO and escrow smart contracts (Solana & Rust) to govern agri-economic decisions, reducing disputes by 80%. ● Set architecture for multi-token smart contracts (Solana & Rust) delivering a 2× yield improvement on tokenized farming assets.

Co-Founder / CTO (Minimal Involvement)

since 01.2025 - Till the present day |Jamii’s Giving

Solidity, IPFS, Web3.js, React, Supabase, Next.js

Key Responsibilities & Achievements: ● Led the initial technical design and development of a decentralized donation platform (Solidity + IPFS) to reduce fund-matching delays by 10×. ● Directed the creation of milestone-based smart contracts (Web3.js) enabling automated fund releases, improving donor retention by 30%. ● Oversaw implementation of multilingual donor dashboards (Next.js + Supabase) to expand reach to 4+ regions. ● Platform is now in final completion phase and operates largely independently; current role is limited to occasional strategic oversight.

Quantitative Researcher / Developer

08.2023 - 03.2025 |ApexNest Holdings

Python, Flask, Node.js, React, Next.js, AWS, QuantLib, NumPy

Key Responsibilities & Achievements: ● Developed machine learning credit risk models using Python, Flask, and Node.js, increasing default prediction accuracy by 25% across multi-asset portfolios. ● Built performance dashboards for investment teams using React, Next.js, and AWS, reducing reporting cycles by 40% and improving decision-making. ● Designed and deployed pricing models for fixed-income assets using QuantLib and NumPy, enabling consistent and transparent valuations. ● Implemented trading strategy pipelines powered by WebSocket APIs and Solana, optimizing execution in response to live market data. ● Led collaborative projects across 3-tier architecture systems, integrating frontend dashboards, backend APIs, and Ethereum smart contract logic to drive a 29.5% improvement in investment ROI.

Software Architect

10.2024 - 03.2025 |Debt FICO

Python, FastAPI, MongoDB, Scikit-learn

Key Responsibilities & Achievements: ● Built decentralized credit scoring models using Python, FastAPI, and MongoDB to approve loans 45% faster. ● Enhanced accuracy of credit predictions by 25% using Scikit-learn and behavioural data analytics. ● Created debt issuance systems on-chain with Rust and Solana, allowing secure, transparent debt cycles. ● Delivered React-based dashboards for credit monitoring, giving lenders real-time visibility. ● Integrated Stripe APIs and Solidity contracts to automate repayments and reduce reconciliation by 90%.

Educational background

Financial Engineering (Masters Degree)

WorldQuant University

Development Finance (Masters Degree)

KCA University

Actuarial Science (Bachelor’s Degree)

Maseno University

Languages

EnglishProficient