GSSwain

Girija Swain

Lead Engineer | Digital Transformation Specialist | 360 Software Engineer

📧 contact@gsswain.com | 🌐 gsswain.com | 💼 LinkedIn

🏆 5K+ Stack Overflow Reputation (Top 7% of 22M+ users) | 📍 Sydney, Australia

About Me

Hi, I’m Girija – a 360 software engineer with 15+ years of experience solving complex business problems through innovative technology solutions and exceptional leadership. I specialize in cloud-native architectures, microservices, and leading high-performing engineering teams that deliver measurable business impact for global FinTechs.

As a professional, I have architected, designed, developed, and scaled event-driven cloud-native enterprise applications using Domain Driven Design, Microservices, Serverless, and Micro Frontends for various FinTechs across the globe.

I believe in building purpose-built simple cohesive systems working together to solve bigger problems. I love getting my hands dirty with emerging technologies, understanding their trade-offs, and using them where they fit best – always making life simpler for developers, business, customers, and everyone in between.

Professional Highlights

🎯 Current Impact at Macquarie Group

Leading enterprise-scale digital transformation for banking infrastructure serving millions of customers
Migrated millions of customer entitlements with zero downtime, saving millions annually
Architected GCP-based platform handling millions of authorization requests daily
Built high-performing engineering team recognized organization-wide

🏆 Career Achievements

Led multi-year migration projects across multiple organizations without disruption
Architected platforms serving millions of users with exceptional reliability
Pioneer in microservices adoption – part of first teams to break monoliths
Delivered 8x performance improvements through innovative approaches
Presented to C-level executives securing continued strategic investment

📊 By The Numbers

15+ years of professional experience
10+ years in global FinTechs
Millions of customers impacted by my solutions
Zero downtime migrations across multiple organizations
Top 7% Stack Overflow contributor globally

Core Expertise

Technical Leadership

Cloud Native Architecture  •  Microservices Design  •  Event-Driven Systems
Domain-Driven Design  •  DevSecOps  •  API Gateway Design

Cloud Platforms & Technologies

Google Cloud Platform  •  AWS  •  Microsoft Azure
Kubernetes  •  Docker  •  Serverless Architecture  •  Infrastructure as Code

Programming & Frameworks

Java  •  JavaScript  •  Spring Boot  •  ReactJS  •  Node.js
GraphQL  •  Apache Cassandra  •  Angular  •  Microservices

Leadership & Strategy

Team Leadership  •  Architecture Review  •  Stakeholder Management
Technical Mentoring  •  Agile Methodologies  •  Cross-functional Collaboration

Featured Case Studies

🏦 Enterprise Banking Transformation | Macquarie Group

Challenge: Modernize legacy entitlements system serving millions of banking customers
Solution: Architected cloud-native GCP platform with zero-downtime migration strategy
Impact:

Migrated millions of customer entitlements without disruption
Enabled retirement of legacy systems saving millions annually
Improved developer experience and operational efficiency
Delivered CDR compliance for open banking

Technologies: GCP, Microservices, Event-Driven Architecture, Domain-Driven Design

🛡️ Cloud-Native Insurance Platform | Aegon Life

Challenge: Build policy administration system from scratch in startup environment
Solution: Event-driven cloud-native platform with multi-tenant B2B capabilities
Impact:

Enabled API-driven sales through major e-commerce platforms (PayTM, MobiKwik, Flipkart)
Created reusable solution building blocks used across organization
Established architecture governance through Architecture Review Board
Won Red Carpet Award and Star of the Quarter

Technologies: AWS, Spring Boot, Spring Cloud, Camunda, Multi-tenant Architecture

⚡ Performance Optimization | TIAA

Challenge: Self-service application with poor performance impacting customer experience
Solution: Frontend modernization and performance optimization strategy
Impact:

Achieved 8x improvement in page load times
Successfully migrated Angular 1.4 to Angular 5 using hybrid approach
Received Quarterly Individual Award for performance excellence

Technologies: Angular, Performance Optimization, Frontend Architecture

Professional Experience Timeline

🚀 Current Role

Macquarie Group Limited | Lead Engineer | Feb 2022 – Present

Leading enterprise-scale entitlements platform transformation
Architecting solutions for electronic banking, mobile banking, and open banking
Managing high-performing engineering teams and C-level stakeholder relationships

💼 Recent Roles

Aurec Pty Ltd (IAG) | Principal Engineer | May 2021 – Feb 2022

Delivered critical insurance solutions and regulatory compliance systems
Enhanced CI/CD pipelines and infrastructure modernization

Aegon Life Insurance | Principal Engineer | Feb 2019 – Dec 2020

Architected cloud-native policy administration platform from scratch
Led cross-functional teams and established architecture governance

Credit Suisse | Assistant Vice President | Oct 2018 – Feb 2019

Technology lead for Swiss Universal Bank payments and transactions
Led multi-vendor engineering teams and modernization initiatives

📈 Career Foundation

Certifications & Recognition

Professional Certifications

🏅 Google Cloud Professional Cloud Architect | Mar 2025 - Mar 2027
🏅 AWS Certified Solutions Architect - Associate | Jan 2022 - Jan 2025
🏅 Microsoft Certified: Azure Data Fundamentals | Jan 2021
🏅 Microsoft Certified: Azure Fundamentals | Jun 2020

Industry Awards

Community Recognition

🌟 Stack Overflow: Top 7% contributor globally (5K+ reputation)
🌟 Certification Badges: credly.com/users/gsswain/badges

Thought Leadership & Community

📝 Technical Writing

Medium Publications: gsswain.medium.com
Technical Blog: Regular insights on cloud architecture, microservices, and engineering leadership
Community Platform (WIP): 360software-engineers.com

Technical Presentations: gsswain.com/slides
Monthly Training Sessions: Conducted at multiple organizations
Architecture Reviews: Led governance and knowledge transfer sessions
Mentoring: Consistently mentored junior developers throughout career

💬 Community Engagement

Stack Overflow: Active contributor helping developers globally
Knowledge Transfer: Teaching Assistant experience with 200+ trainees

Technical Architecture Philosophy

🏗️ Design Principles I Champion

Domain-Driven Design: Aligning technology with business domains
Event-Driven Architecture: Building resilient, scalable systems
Cloud-Native First: Leveraging cloud capabilities for optimal solutions
Microservices Done Right: Breaking monoliths thoughtfully
DevSecOps Integration: Security and operations by design

🔧 Problem-Solving Approach

Understand the Business Problem – Technology serves business outcomes
Design for Scale and Resilience – Build systems that grow with needs
Choose Right Technologies – No silver bullets, context matters
Lead Through Examples – Hands-on leadership and mentoring
Measure and Iterate – Continuous improvement through feedback

Education

Master of Computer Applications	Indira Gandhi National Open University
Bachelor of Computer Applications	Berhampur University

Let’s Connect

I’m always interested in discussing complex technical challenges, digital transformation strategies, and building high-performing engineering teams. Whether you’re looking to:

Architect cloud-native solutions for enterprise scale
Lead digital transformation initiatives in financial services
Build and scale engineering teams that deliver results
Implement modern software practices and governance

Let’s connect and explore how we can work together!

📬 Get In Touch

Email: contact@gsswain.com
LinkedIn: linkedin.com/in/gsswain
Website: gsswain.com
Stack Overflow: stackoverflow.com/users/4601120/gsswain

“I believe in building purpose-built simple cohesive systems working together to solve bigger problems – always making life simpler for developers, business, customers, and everyone in between.”