
Gboyega Olusanya
@gboyegaolusanya
I build production AI systems for fintech, banking, and digital products.
What I'm looking for
I've built high-throughput fintech and banking systems for more than 20 years, with recent work centered on production Generative AI, agentic architectures, and RAG pipelines.
At NowNow Digital, I drive technology vision through hands-on prototypes for AI-first capabilities, digital twins, and multi-agent orchestration. Previously at Polaris Bank, I led LLM-assisted development adoption and modernization of enterprise applications into microservices and event-driven systems.
As Head of Engineering at ALAT Digital Bank, I led a 45-person cross-functional team while directing microservices refactoring onto Azure Kubernetes Service and shipping an OpenAPI platform for third-party B2B integrations. I also developed three production ML models serving roughly 700,000 monthly active users, including churn, segmentation, and recommendation systems.
I'm currently building PrepAI, a stateful technical-interview agent using LangGraph, Vertex AI Vector Search, Gemini 1.5 Flash, FastAPI, and Next.js. My work connects AI theory to cloud-native production realities, from retrieval relevance and latency telemetry to resilient multi-agent workflows.
Experience
Work history, roles, and key accomplishments
Chief Technology Officer
NowNow Digital Limited
Apr 2025 - Present (1 year 6 months)
Driving tech vision by actively prototyping AI-first product capabilities, digital twins, and multi-agent orchestrations.
Solo Architect & Engineer
PrepAI
Jan 2025 - Present (1 year 9 months)
Engineered a stateful session interview agent using LangGraph for dynamic multi-turn question sequencing and evaluation loops. Developing an optimized RAG pipeline with Vertex AI text-embedding-004 and Vector Search for low-latency retrieval.
Lead Engineer / Side Project
AI/ML Fraud & AML Detection System
Jan 2025 - Present (1 year 9 months)
Designed a dual-engine compliance system combining supervised classification models with Generative LLMs for narrative-based AML risk analysis. Deployed models on GCP Cloud Run and leveraged Vertex AI for model management.
Head, Software Engineering
Polaris Bank Limited
Jan 2023 - Apr 2025 (2 years 3 months)
Led the operational push for LLM-assisted development workflows across the engineering department, optimizing cycle times and improving code reviews. Supervised architectural modernization of core enterprise applications into microservices and event-driven topologies.
Lead Architect
Polaris Bank
Jan 2023 - Apr 2025 (2 years 3 months)
Programmed a high-performance enterprise knowledge base using Haystack and ChromaDB. Managed end-to-end data pipeline including document cleansing, chunking, vector indexing, and grounding layers, enabling semantic search over banking compliance documents.
Lead ML Engineer
ALAT Digital Bank
Jan 2020 - Dec 2022 (2 years 11 months)
Developed and shipped three production-grade ML models serving ~700,000 monthly active users on Microsoft Azure. Implemented churn prediction, behavioral segmentation, and a recommendation system.
Head of Engineering
ALAT Digital Bank (Wema Bank)
May 2019 - Mar 2022 (2 years 10 months)
Led a 45-person cross-functional engineering team while remaining deeply technical. Orchestrated core frontend and backend microservices refactoring and deployment onto Azure Kubernetes Services (AKS). Designed and shipped an OpenAPI platform architecture for rapid third-party B2B integrations.
Principal AI Engineer
OLUGBOYEGA A. OLUSANYA
Hands-on Principal AI Engineer and Systems Architect with 20+ years of deep engineering experience building high-throughput fintech and banking systems, specializing in production-scale Generative AI, agentic architectures, and RAG pipelines.
Solution Architect
Standard Bank
Architected data pipelines and message contracts for 31 integrated apps on a $30M Core Banking migration.
VP of Engineering
ULesson Education
Projected 10% infrastructure savings via FinOps frameworks and deployed DORA metric structures.
IT Planning Lead
Access Bank
Improved system uptime from 89.6% to 98% across electronic channels.
Education
Degrees, certifications, and relevant coursework
University of Texas at Austin
Postgraduate Program, Artificial Intelligence / Machine Learning
Completed a Postgraduate Program in AI/ML at UT Austin (McCombs School of Business) in 2020.
Bayes Business School
Master of Business Administration, Business Administration
Earned a Master of Business Administration (MBA) from Bayes Business School, London, UK in 2018.
University of Ibadan
Bachelor of Science, Computer Science
Activities and societies: Co-built the university's first website
Earned a B.Sc. in Computer Science from the University of Ibadan, Nigeria in 1999. Co-built the university's first website.
Availability
Location
Authorized to work in
Job categories
Skills
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