Building financial systems that scale

Backend developer specializing in fintech infrastructure. Passionate about building secure, reliable payment systems and financial APIs that handle millions of transactions.

const developer = {
name: "Sean Powell",
passion: "coding",
}
function solve(problem) {
return elegantSolution()
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while (learning) {
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Technical Expertise

Backend infrastructure and financial systems engineering

Backend Architecture

Designing and implementing scalable microservices, RESTful APIs, and distributed systems for high-throughput applications.

C# Microservices REST APIs
🔧

Payment Systems

Building secure payment processing pipelines, transaction management systems, and integration with payment gateways.

Stripe Webhooks
☁️

Database & Data Systems

Designing high-performance databases, optimizing queries, and ensuring data consistency across distributed systems.

PostgreSQL Redis ElasticSearch
🎨

Cloud Infrastructure

Deploying and managing scalable cloud infrastructure with containerization, orchestration, and CI/CD pipelines.

AWS Docker Kubernetes Terraform CloudFormation
📱

Security & Compliance

Implementing financial security standards, encryption, authentication systems, and regulatory compliance requirements.

OAuth2 JWT Encryption GDPR
🔐

Event-Driven Systems

Building asynchronous messaging systems, event streaming, and real-time data processing for financial operations.

Kafka RabbitMQ SQS Event Sourcing