Senior fullstack developer

Maureen Oguche builds the systems behind serious digital products.

Backend-led fullstack engineer and CTO working across payments, fintech infrastructure, AI automation, conversational commerce, and cloud-native service design.

Request availability See selected work

6+ years building production systems

70% reporting timeout reduction through ETL

60% processing speed and API latency gains

25% downtime reduction with event messaging

Engineering profile

Clean architecture, fast systems, and teams that ship with less drag.

I work where correctness, latency, reliability, and product clarity meet: payment systems, banking integrations, automation workflows, reporting platforms, and AI-assisted products. My bias is toward simple service boundaries, observable APIs, and pragmatic delivery.

Selected work

Products with infrastructure underneath.

Cooperative finance software

Pamoja

Cooperative software for Nigerian thrift and credit societies, covering savings tracking, fair loan calculations, instant receipts, and member transparency.

Turns cooperative operations into visible savings, loans, receipts, and member records.

Angular.NET servicesCooperative financeMember workflows

AI commerce on WhatsApp

Whatsella

A business growth platform that lets vendors list products, automate customer conversations, and sell through WhatsApp with AI assistance.

Connects storefronts, product discovery, chat automation, orders, payouts, and trust signals.

Angular.NETAI agentsPayments

Precision agriculture

AgriSense Hub

Precision agriculture platform for Africa, focused on smart soil monitoring, IoT-powered irrigation, and drone-assisted crop analytics.

Helps farmers reduce losses, cut costs, and grow healthier crops with connected farm intelligence.

Next.jsIoTSmart irrigationDrone analytics

Banking and payment rails

Payment Infrastructure

Secure integration layers between core banking systems, native customer accounts, and NIBSS payment infrastructure.

Owned reliability, reconciliation, regulatory alignment, and core payment flows.

C#.NETNIBSSISO 20022SQLAWS

Conversational banking

Enterprise Bot and Reporting Platform

Chatbot and reporting infrastructure for loan applications, loan detail retrieval, statement downloads, and analytics pipelines.

Moved reports from runtime S3/code transformations to prepared datasets and cut errors by over 70%.

ASP.NET CoreAWS GlueAthenaLambdaSQL Server

Document automation

Transcript and Verification Systems

Internal tools for parsing, verifying, and operationalizing documents across education and identity workflows.

Reduced manual handling by converting documents into searchable, service-ready data.

.NETPlaywrightPDF parsingAngular

Experience

From implementation to technical ownership.

Recent roles cover CTO-level payments ownership, senior consulting delivery, enterprise bot platforms, and high-impact bank refactoring work.

Oct 2025 - Present

Chief Technology Officer

Baige Microfinance Bank Payments ownership, core banking integration, customer-account migration, reconciliation, and regulatory alignment.

Nov 2024 - Present

Senior Software Engineer

James Chase Consulting Fintech automation, merchant installment payments, AWS Step Functions, EventBridge, and distributed .NET services.

Nov 2024 - Sept 2025

Senior Software Engineer

eBanqo Inc Enterprise chatbots, reporting ETL, analytics reliability, observability, and multi-client integrations.

Feb 2023 - Aug 2024

Backend Engineer

Sterling Bank Plc Legacy refactoring, caching, Azure Service Bus, performance tuning, and maintainability improvements.

Working stack

Backend depth with enough frontend range to own the product surface.

C#.NET CoreASP.NET Web APINode.js FastifyAngularReact NativeSQL ServerPostgreSQL MongoDBAzure Service BusAWS LambdaStep Functions EventBridgeDockerRedisSerilog

Available for senior engineering conversations

Need someone who can own APIs, payments, cloud workflows, and the product edge?

career.oguchemaureen@outlook.com +234 80 304 11314