Open to opportunities

aruna silva

@arunasilva

Message

I’m a Senior Software Engineer building scalable cloud-native backend systems with Java, Spring Boot, and AWS.

Sweden

Message

What I'm looking for

I’m looking to lead backend and cloud-native initiatives—building secure microservices, serverless/event-driven systems, and strong observability—while collaborating with teams that value reliability, cost efficiency, and clean architecture.

I’m a Senior Software Engineer with 14+ years of experience building scalable, cloud-native backend systems using Java, Spring Boot, and AWS. I focus on microservices, serverless, and event-driven architectures, delivering secure, production-grade solutions across connected vehicle, fintech, insurance, and telecom domains.

I’ve designed asynchronous, event-driven solutions for high-scale, intermittently connected environments—building serverless workflows with Lambda, SQS, S3, API Gateway, DynamoDB, and AWS Secrets Manager. I’m also strong in distributed systems, API design, and reliability-focused messaging, with observability built in using Kibana, InfluxDB, Grafana, and Fluent Bit.

Earlier, as a Senior Technical Lead, I mentored a team of 10 developers and re-architected a legacy system into a serverless AWS solution, reducing operational costs by ~60%. I’ve also delivered Open Banking Payment Initiation (PISP) systems with FCA acceptance across major UK banks, and improved performance in production systems through caching and database optimizations.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

doWhile Consulting Scandinavia AB

Mar 2024 - Present (2 years 2 months)

Designed and implemented an asynchronous, event-driven file handling solution for connected assets using a fully serverless AWS architecture (Lambda, SQS, S3, API Gateway, DynamoDB). Improved production observability and incident troubleshooting by integrating Kibana, InfluxDB, and Grafana.

Java 21+Spring Boot AWS Lambda Amazon SQS Amazon S3 API Gateway DynamoDB Event Driven Architecture Observability

Senior Technical Lead

Intervest Software Technologies

Jul 2014 - Mar 2024 (9 years 8 months)

Led and mentored a team of 10 developers on a microservices-based insurance platform serving web, mobile, and call-center channels. Re-architected a legacy system into a serverless AWS solution, reducing operational costs by ~60%, and strengthened authentication and cloud security using Amazon Cognito and event-driven AWS SQS/Lambda integrations.

Java Spring Boot Microservices Serverless Amazon Cognito Amazon SQS AWS Lambda Cloud Cost Optimization Mentoring Event Driven Integrations

Software Architect (Contract)

Blott.com

Jan 2021 - May 2022 (1 year 4 months)

Designed and delivered an Open Banking Payment Initiation (PISP) platform, integrating with 11 UK banks to support FCA acceptance. Secured API access with OAuth 2.0, Amazon Cognito, and AWS API Gateway usage plans, and produced complete API documentation.

OAuth 2.0 Amazon Cognito Amazon API Gateway API Documentation AWS Administration

Senior Software Engineer

Aepona (An Intel Company)

Nov 2011 - Jun 2014 (2 years 7 months)

Improved database performance by ~25% through horizontal partitioning and enhanced response times using JBoss distributed caching. Increased reporting performance by separating reporting workloads via JasperReports Server.

Java Partitioning JasperReports Server Reporting Layer Decoupling