SR
Case studies

Production systems, real numbers

A selection of platforms I have architected and built. Client names are withheld where required by confidentiality agreements; details are available on request.

FMCG / Distribution · 2022 – 2025

Microservices platform running daily field sales for 1,300+ distributors.

A national food & beverage company needed to digitise order-taking, distributor management and field reporting across the whole country. The system had to handle thousands of concurrent sales reps, unreliable connectivity, and reporting that management could trust.

NestJSTypeScriptMySQLTypeORMKnex.jsExpress GatewayMicroservices

1,300+

Distributors supported

Microservices

Architecture

Nationwide

Field operations

SaaS / Telecom · 2021 – 2022

A billing SaaS that automated invoicing and payments for 2,000+ subscribers.

Internet service providers were managing subscriptions, invoices and payment collection by hand. They needed a multi-tenant product where each ISP could manage its own customers, with payments and notifications handled automatically.

Node.jsExpress.jsMongoDBSSLCommerzGitHub ActionsNginxMikroTikGSM

2,000+

Subscribers billed

Automated

Billing & payments

CI/CD

GitHub Actions pipeline

Media / Telecom · 2023 – 2024

Low-latency WebSocket messaging between customers and support agents.

The provider's support experience relied on slow, disconnected channels. They needed live chat between customers and agents that stayed responsive under load and integrated with their existing backend.

NestJSSocket.IOWebSocketsTypeScriptMySQL

Real-time

WebSocket delivery

Low latency

Customer ↔ agent chat

Socket.IO

Scalable transport

SaaS / Media · 2025 – 2026

Automated video pipelines, CDN delivery and analytics for multiple SaaS clients.

A user-generated content platform needed uploaded video processed automatically into streamable formats, while a print-on-demand client needed reporting over very large datasets — all delivered across several concurrent client projects with tight timelines.

NestJSTypeScriptPostgreSQLMongoDBClickHousePrismaAWSDockerStripeZapier

AWS

MediaConvert, S3, CloudFront

ClickHouse

Large-scale analytics

Multi-client

Concurrent delivery

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