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Clinton Fernandes
Software Engineer
Results-driven Senior Software Engineer with 5+ years of experience building scalable, cloud-native systems using Java, Spring Boot, and AWS Serverless. I’ve led cost-optimization efforts cutting cloud spend by up to 30%, contribute to open source, and share engineering insights through technical blogs on system design, Java, and AWS.
JavaReactJsSpring BootAWSSQL
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Technical Expertise
📝
Programming Languages
Java90%
TypeScript80%
MySQL80%
HTML/CSS70%
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Frameworks/Technologies
Spring Boot90%
ReactJS & NextJS85%
RestAPI80%
Hibernate83%
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Cloud (AWS)
Serverless (Lambda, API Gateway, SQS etc)95%
CDK85%
Cloudwatch Debugging and Observability80%
Design Patterns83%
Operational Expertise
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Tools
Git75%
GitActions85%
Podman55%
AWS CLI63%
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Architectural
Event-driven, Serverless and CQRS patterns70%
Open Source65%
Distributed System Design80%
API Gateway & Microservices Design80%
Cost-Aware Architecture (AWS Optimization)70%
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Soft Skills
Communication90%
Problem-Solving90%
Team Collaboration85%
Leadership80%
Featured Projects
cloud-circuitbreaker
A distributed, cloud-native circuit breaker library published to maven central for AWS-based systems, with Spring Boot support and DynamoDB backend.
Github MavenTechnology used
AOP
For cross-cutting concerns
DynamoDb SDK
For persistence
Lambda Wrappers
For non-spring java projects(annotation alternative)
Technical Implementation
- ▹Work across instances and containers (e.g., ECS, EKS, Lambda)
- ▹Use DynamoDB as a centralized, low-latency state store
- ▹Support method-level annotations for fast adoption in Spring Boot
- ▹Be configurable via environment variables or YAML
- ▹Keep cold starts fast for AWS Lambda environments
Github-Profile-Search-App
ReactJS based simple UI for searching user profiles
GithubTechnology used
ReactJS
For building clean user interface
Context API
For managing state
Technical Implementation
- ▹Fetch API / Axios for data fetching
- ▹Component-based architecture
- ▹Conditional rendering
- ▹Error handling for API requests
- ▹Basic form handling and input validation
Key Accomplishments
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AWS Certifications
- AWS Cloud Practitioner
- AWS Certified Developer Associate
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Spot Award
- ICICI: Received a performance award for delivering multiple enhancements ahead of schedule and coordinating with other teams to resolve critical issues
- Principal: Awarded 2025 for handling and solving multiple issues simultaneously
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Delivery Excellence Award
- Awarded consecutively for two years(2023&2024) for consistent quality production releases without issues and commitment to timelines
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Cost Optimization
- Achieved significant cost savings by optimizing AWS and presenting actionable insights to stakeholders.
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Contribution to Open source
- Have released a package to maven as well as helped in different projects in open source
Reach out!
I love collborating on open source projects and trying my hand on ambitious projects primarily on AWS and Java based. Do reach out if you would like to collborate
Pune, Maharashtra; India