Cyprian Aarons
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About

Python backend services and applied AI.

I build AI tools, backend platforms, and workplace software with clear evidence, careful controls, and human oversight.

Applied AI résuméBackend résumé
Professional summary

I build Python backend services, API integrations, and applied AI workflows. My experience spans hands-on client delivery and engineering leadership.

My work includes engineering leadership at AfricAI and contract delivery across operational software, backend systems, Web3, and IoT. At CST, I worked on a mobile operations application and its FastAPI service integrations.

My technical focus is retrieval-based workflows, LangGraph, FastAPI, and evaluation. I am interested in hands-on senior engineering roles with responsibility for implementation, testing, and ongoing delivery.

Operating principles
Show clearly what the software can and cannot do.
Keep the source and the human decision visible.
Plan for delivery, monitoring, and recovery from the start.
Selected work
Real-Time OperationsFeatured

Logistics operations connected through a real-time mobile app.

CST Goods-In

A mobile operations platform connecting reception, deliveries, passes, and device workflows.

Connected operational workflows with mobile access, live updates, and existing business systems.

Shipped
Read case study
More case studies

See more projects, from healthcare and logistics to internal tools and workflow automation.

Experience & leadership
  1. Feb 2025 – Present

    Senior AI Engineer · Independent Consultant

    Remote

    Retrieval-based insurance enquiries, a healthcare debt-recovery workflow design, and assessment-platform services using Python, FastAPI, and LangGraph. Case studies distinguish built systems, implementation designs, and prototypes.

    Applied AIFastAPILangGraph
  2. Jan 2023 – Feb 2025

    Chief Technology Officer · AfricAI

    Remote

    Technical owner of an AI platform with a three-developer team: architecture, release planning, and CI/CD while writing production Python. Redis caching, query optimisation, async services, and OpenAI/Stability.ai integrations.

    LeadershipPythonPlatform
  3. Dec 2023 – Sep 2024

    Full Stack Engineer (Contract) · CST UK

    Remote

    Built a React Native/Expo operations app and FastAPI services for reception, deliveries, visitor passes, and device workflows, integrated with HaloPSA, live updates, and staff notifications.

    FastAPIReact NativeIntegrations
  4. Jan 2022 – Sep 2024

    Full Stack Engineer (Contract) · Coindraw

    Remote

    Backend functionality for a Web3 competition platform covering payment, draw, and prize workflows.

    BackendPaymentsWeb3
  5. Sep 2022 – Jan 2023

    Frontend Developer (Contract) · Vanti

    Remote

    Vue.js dashboards on Go-based telemetry services for an IoT platform.

    Vue.jsIoT
  6. Oct 2021 – May 2024

    Full Stack Engineer, AI & Web3 · FreeFlow

    Remote

    Solidity smart contracts, DeFi, and NFT platform work for international clients.

    Web3Solidity
  7. Dec 2019 – Dec 2021

    Senior Frontend Developer → Lead Engineer · Freshideas

    Harare, Zimbabwe

    Led a cross-functional team delivering eCommerce and SaaS products, with responsibility for engineering coordination and releases.

    LeadershipeCommerce
  8. Oct 2018 – Dec 2023

    Founder and CTO · Topiax

    Remote

    Founded a software delivery studio; led client projects, architecture, and implementation, and set up testing and release practices.

    LeadershipDelivery
  9. 2021

    BSc Software Engineering · Harare Institute of Technology

Contract engagements ran concurrently; overlaps reflect part-time client work.

Tech stack
AI & Machine Learning
OpenAIAnthropicLangChainLangGraphRAGLLM evaluation
Backend & Cloud
PythonFastAPIDjangoNode.jsGoPostgreSQLAWSDockerCI/CD
Frontend
ReactNext.jsTypeScriptVue.jsTailwind CSS
Blockchain & Web3
SoliditySmart ContractsEthers.jsWeb3.jsDeFi
Education
Harare Institute of Technology
BSc Software Engineering · 2021
Harare, Zimbabwe
Accomplishments
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