TranSave Technologies – Secure, Scalable Fintech Infrastructure on AWS
TranSave Technologies Limited
TranSave Technologies
About TranSave
TranSave Technologies Limited is a Nigerian fintech platform offering digital banking, payments, lending, and savings services through its mobile app, web portal, and POS operations, operating under Central Bank of Nigeria fintech guidelines.
Industry
Financial Services
Location
Nigeria
Use Cases
Financial Services, Security, Databases
Overview
Transnet Cloud partnered with TranSave Technologies to build a secure, highly available AWS infrastructure supporting digital banking, payments, lending, and savings services for customers across Nigeria, achieving 99.9% uptime since go-live.
The Challenge
TranSave needed infrastructure that could support real-time financial transactions across its mobile app, web portal, and POS channels with zero tolerance for extended downtime. Additional pressures included securing customer financial data and PII to Nigerian data protection standards, safely managing credentials across multiple payment integrations, and controlling cost as transaction volumes grew — demands that traditional on-premises hosting could not meet for a regulated fintech.
Proposed Solution & Architecture
Transnet Cloud designed a secure, highly available AWS architecture purpose-built for real-time digital banking, payments, and lending across multiple channels.
Compute & Networking
Amazon EC2
t3-family compute redundancy across two Availability Zones, deployed in private subnets within a custom VPC
Amazon VPC
Custom virtual private cloud isolating workloads with private subnets and a NAT Gateway for controlled outbound access
NAT Gateway
Controlled outbound connectivity for payment API integrations without exposing instances to the public internet
Amazon Route 53
DNS resolution with health-checked routing for automatic failover
Security & Compliance
AWS Secrets Manager
Centralized, auto-rotated credentials for payment APIs, integration keys, and database passwords
AWS KMS
Customer-managed encryption keys securing data at rest across S3 and EBS, with TLS enforced in transit
Messaging, Monitoring & Storage
Amazon SQS
Asynchronous queuing decoupling transaction submission from processing to prevent loss under peak load
Amazon SNS
Real-time operational alerting delivered to the Transnet Cloud engineering team
Amazon CloudWatch
Infrastructure monitoring with custom transaction health dashboards and threshold alarms
Amazon S3
Server-side encrypted storage for application logs, backups, and reporting artifacts
Outcomes & Success Metrics
Measurable reliability and security gains for a regulated digital banking and payments platform.
99.9% infrastructure uptime since go-live, with zero Availability Zone failures causing user-facing downtime
100% of payment, API, and database credentials migrated to Secrets Manager with automatic rotation
CloudWatch alerts reach the engineering team within 2 minutes of any threshold breach
Mandatory resource tagging — Environment, Project, Owner, CostCenter — now enforced across every AWS resource
TCO Analysis
Transnet Cloud modelled cost across compute, networking, messaging, security, and monitoring services, right-sized for a two-Availability-Zone production deployment.
$2,046.75
Estimated Monthly AWS Cost
$24,561.00
AWS Annual Recurring Revenue
Lessons Learned
The initial deployment ran its database as a self-managed instance on EC2, adding manual backup, patching, and recovery overhead unsuited to a production fintech platform. Transnet Cloud recommended migrating to Amazon RDS for automated Multi-AZ failover, point-in-time recovery, and managed patching.
Early resource deployment lacked structured tagging. Transnet Cloud implemented a mandatory tagging policy — Environment, Project, Owner, and CostCenter — applied across all resources for cost allocation and governance.
Moving credentials out of environment variables into Secrets Manager with automatic rotation is now a day-one standard for every new Transnet Cloud fintech engagement.
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