Java
Shalini Ulaganathan
Summary
Seasoned IT professional with over 14 years of extensive experience in software development, cloud solutions, and DevOps. Proficient in Java, Spring Boot, Spring, Angular, React, JSP, Struts and microservices architecture, with a strong background in designing and implementing scalable cloud environments using AWS services such as EKS, ECS, and Lambda, VPC, API Gateway, ALB, etc. Adept at building and managing CI/CD pipelines using tools like Jenkins and Bitbucket, and skilled in Infrastructure as Code (IaC) using Terraform and CloudFormation. Specialized in troubleshooting, investigating complex technical issues, and delivering optimized cloud solutions. Expertise as an integration specialist, particularly with payment gateways, third-party services, and implementing authentication and authorization frameworks like SingPass and CorpPass. Known for driving business value through innovation and efficiency, while leading teams and mentoring developers in best practices.
Overview
15
15
years of professional experience
Work History
Solution Architect
Dxc Technologies Singapore Services Pvt Ltd
07.2022 - Current
- Led technical decision-making for projects, including designing and architecting solutions based on client requirements, ensuring alignment with business goals
- Attended requirement gathering sessions with clients, providing expert consultation on technologies to be implemented and convincing stakeholders of the optimal technical approach
- Analyzed and resolved performance-related issues by conducting in-depth root cause analysis, advising on necessary upgrades, and successfully improving system performance
- Identified inefficiencies in report generation, collaborated with the team to optimize database queries, and recommended alternative solutions to reduce report generation time
- Actively participated in agile project management, educating the team on using Jira for change requests and other project tracking needs
- Prepared comprehensive effort estimations for complex tasks, debating and justifying the man-days required for each task, and resolving conflicts with clients by explaining technical complexities
- Recommended and implemented various technical solutions for clients, including network connectivity improvements and migrating monolithic applications to microservices using containerized solutions like ECS and EKS
- Worked closely with the team to troubleshoot production issues, identifying root causes, and ensuring timely fixes to maintain operational efficiency
- Supported the team on an ongoing basis, providing guidance and troubleshooting assistance for any technical challenges encountered
- Led infrastructure software upgrades, ensuring smooth transitions, and maintaining system stability during updates
- Spearheaded the Recruitment of Java developers and architects, optimizing team composition and enhancing project delivery capacity through strategic talent assessment and alignment.
Senior DevOps Engineer
Healint Pte Ltd
11.2021 - 04.2022
- Designed and deployed AWS infrastructure using Terraform, leveraging advanced features such as workspaces to streamline and manage multiple environments effectively
- Developed and implemented CI/CD pipelines using Bitbucket to automate both infrastructure deployment and application code deployment, enhancing overall operational efficiency
- Conducted a thorough security analysis of the existing infrastructure, identifying gaps and implementing robust security measures such as Network ACLs (NACL), Virtual Private Clouds (VPC), Security Groups (SG), firewalls, and AWS Web Application Firewall (WAF)
- Ensured infrastructure alignment with the AWS Well-Architected Framework, adhering to the five pillars: operational excellence, security, reliability, performance efficiency, and cost optimization
- Led the automation testing implementation for mobile applications on both iOS and Android platforms, ensuring coverage for multiple versions and improving release cycle quality
- Successfully migrated the AWS RDS PostgreSQL engine, ensuring minimal downtime and optimizing database performance in the new environment.
Application Architect
Dxc Technologies Singapore Services Pvt Ltd
07.2020 - 10.2021
- Developed the MicroAppGenerator using JHipster, enabling developers to create microservices with CRUD operations more efficiently, significantly boosting productivity
- Customized JHipster Gateway to support JWT and OAuth authentication, and launched a user-friendly web automation testing framework, improving accessibility for non-technical users and enhancing overall system security
- Mastered AWS Serverless architecture quickly, leading the design and deployment of a serverless product that greatly enhanced the client's operational efficiency
- Applied extensive DevOps expertise to implement Infrastructure as Code solutions using Terraform and AWS CloudFormation, streamlining infrastructure provisioning processes
- Utilized Jenkins, AWS CodeCommit, and other AWS services to optimize CI/CD pipelines, improving deployment frequency and strengthening application security and reliability.
Senior Java Developer
Capita Pvt Ltd
04.2019 - 07.2020
- Engineered and maintained Java-based solutions, enhancing system modularity and performance by developing robust components and interfaces
- Actively maintained and optimized prototypes and scripts, ensuring high reliability and operational efficiency
- Ensured technical designs adhered strictly to specifications, reducing the need for rework and delivering high-quality project outcomes
- Designed and executed comprehensive unit and integration testing protocols, improving code reliability and facilitating smoother application deployments
- Played a key role in team meetings by contributing innovative solutions that enhanced overall project efficiency
- Developed and integrated new applications with existing systems, improving functionality and user experience, leading to greater customer satisfaction
- Authored detailed code documentation and contributed to technical papers, enhancing team understanding and supporting project continuity
- Championed continuous improvement efforts by evaluating and adopting cutting-edge technologies.
Senior Java Developer
Compo 2000 Pvt Ltd
02.2017 - 04.2019
- Successfully led the migration of legacy applications to modern frameworks by upgrading Java libraries, standardizing Maven inputs with MOJO, and transitioning from Ant to Maven and SVN to GIT, enhancing system performance and developer productivity
- Identified and implemented service improvements, automating key daily tasks with batch scripts, which reduced manual effort and increased operational efficiency
- Actively collaborated within development teams to engineer new APIs, aligning closely with product owners, and leveraging agile practices, resulting acceleration in API development and integration.
IT Analyst
TotaleBiz Solutions Pvt Ltd.
12.2015 - 12.2016
- Designed and developed user-friendly fillable PDF forms with diverse fields, including digital signatures, enhancing data collection efficiency
- Leveraged Business Objects to create dynamic reports with complex queries, improving data analysis accuracy and supporting strategic decision-making processes
- Transformed plain Java projects into Maven-supported projects, automating deployments with Cron jobs in Linux and Task Scheduler in Windows, resulting in reduction in deployment times
- Developed robust integrated applications for business clients using Mule and Anypoint Studio, streamlining business processes, and enhancing client service delivery
- Utilized BIRT and Actuate to develop daily monitoring reports for sales and purchase orders, enhancing operational transparency and improving inventory management efficiency
- Enhanced multiple applications to align with diverse country strategies, improving process efficiency and localization, resulting in increase in user adoption rates
- Created optimized stored procedures and triggers, significantly improving application performance and database efficiency by reducing processing times
- Effectively resolved urgent and complex user requests in a high-pressure environment, enhancing customer satisfaction and reducing issue resolution time.
HCL Technologies Pvt Ltd
03.2010 - 12.2015
- Engineered a comprehensive access control system, enhancing application security and user-level restrictions, which increased data protection
- Implemented advanced monitoring functionalities, enabling real-time health checks of the application, which improved system reliability and reduced downtime
- Efficiently resolved critical client issues within trade applications, maintaining optimal operation and client satisfaction, leading to a 95% customer approval rating
- Actively supported production deployments, ensuring smooth transitions and maintaining 99.9% uptime during critical release cycles
- Served as the Subject Matter Expert (SME) for the project, leading the team with strategic insights and driving a 30% improvement in project delivery timelines through effective leadership.
Education
Microsoft Certified: Azure Fundamentals
AWS Solution Architect Associate
09.2027
AWS Certified DevOps Engineer – Professional
12.2025
MCA -
University of Madras
05.2009
B.Sc., Computer Science -
Thiruvalluvar University
05.2006
Skills
- Java
- Spring Boot
- Spring
- Struts
- Angular
- React
- EXTJS Framework
- DWR
- JQuery
- Apache Tomcat
- Websphere
- Weblogic
- JBoss
- HTML
- Javascript
- AWS
- Azure
- Kubernetes
- Openshift
- JHipster
- Microservices
- API Gateways
- GCC
- ShipHats
- Bamboo
- Gitlab
- Bitbucket
- Github
- SVN
- Maven
- Ant
- MOJO
- EJB
- Docker
- Linux
- Selenium
- WSO2
- Nodejs
- Elastic Search
- JReports
- Birt Report
- Systems design
- DevOps Implementation
- Requirements Gathering
- Technical Project Management
- Microservices Architecture
- Data Integration Strategies
- Database performance
- Infrastructure Automation
- Application Modernization
- Cloud Computing Expertise
- API Design and Management
- Software Development Lifecycle
- Serverless Architecture
References
Available upon request.
Certification
- Amazon Web Services (AWS) Certified Solutions Architect
- Microsoft Certified: Azure Fundamentals
- AWS Certified DevOps Engineer – Professional
- AWS Certified AI Practitioner
Accomplishments
- Recognized as a quick learner and independent worker as a fresher, completing tasks on time without assistance (2010).
- Successfully completed a short-term project with high customer satisfaction, earning the title of Subject Matter Expert (SME) and resolving all issues immediately.
- Awarded for resolving a high number of tickets and being an SME in 2014. Provided critical support to senior developers and managers by offering quick suggestions and technical insights in a support project, working independently despite being part of a large team.
- Optimized a slow-running project for a logistics company by recreating and refining code, queries, and logic, significantly improving system performance(2015).
- Earned certifications for outstanding performance by providing innovative solutions (2019).
- Delivered a high-pressure, short-timeline project, despite being unfamiliar with the technologies involved, acting as both a DevOps and infrastructure architect (2020).
- Resolved client disputes by justifying man-days, explaining technical limitations, and offering technology solutions, while mentoring the team and assisting in issue investigation and resolution (2023).
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Quote
There’s no shortage of remarkable ideas, what’s missing is the will to execute them.
Seth Godin
Software
Springboot
Spring
Microservices
API Gateway
Angular js
React Js
AWS
Languages
English
Bilingual or Proficient (C2)
Tamil
Bilingual or Proficient (C2)
Timeline
Solution Architect
Dxc Technologies Singapore Services Pvt Ltd
07.2022 - Current
Senior DevOps Engineer
Healint Pte Ltd
11.2021 - 04.2022
Application Architect
Dxc Technologies Singapore Services Pvt Ltd
07.2020 - 10.2021
Senior Java Developer
Capita Pvt Ltd
04.2019 - 07.2020
Senior Java Developer
Compo 2000 Pvt Ltd
02.2017 - 04.2019
IT Analyst
TotaleBiz Solutions Pvt Ltd.
12.2015 - 12.2016
HCL Technologies Pvt Ltd
03.2010 - 12.2015
AWS Solution Architect Associate
AWS Certified DevOps Engineer – Professional
MCA -
University of Madras
B.Sc., Computer Science -
Thiruvalluvar University
Microsoft Certified: Azure Fundamentals
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