William Arumainathan
Austin,TX
Summary
SRE and platform engineering leader with 12+ years of experience delivering highly reliable, automated, cloud-native systems within financial services. Demonstrated progression from individual contributor to people manager, leading enterprise initiatives across Kubernetes, CaaS, CI/CD, and hybrid cloud platforms. Strong focus on automation engineering, operational excellence, and AI-assisted tooling, including agentic systems and MCP-based integrations.
Overview
15
15
years of professional experience
1
1
Certification
Work History
Manager, Software Development & Engineering
Charles Schwab
09.2022 - Current
- Lead SRE and platform engineering initiatives supporting enterprise CloudOps platforms.
- Own reliability, automation, and modernization of CPR Diagnostics, including GKE on-prem migration.
- Drive Kubernetes and CaaS enablement, improving deployment consistency and platform resilience.
- Standardize CI/CD pipelines using GitHub Actions; reduce manual operational toil through automation.
- Partner with security, infrastructure, and operations teams to enforce governance and deployment guardrails.
- Lead AI-driven automation, MCP integrations, and agentic tooling initiatives.
Senior Specialist, Software Development & Engineering
Charles Schwab
12.2019 - 09.2022
- Developed cloud-native services and REST APIs using .NET Core and Spring Boot.
- Experienced in domain development involving PaaS, SaaS and IaaS application solutioning and testing. • Experience in working on Container platforms like Kubernetes and Container Orchestration techniques
- Built and operated PCF-based platforms with CI/CD automation.
- Implemented reliability controls, testing, and security scanning (Sonar, Veracode).
- .Proficient in working with Amazon S3 and integration with Kafka for message and Object Storage.
- Experience developing reference implementations on NoSQL DBs and Redis Cache implementing Cache Direct and Cache Aside patterns.
- Proficient in creating Spring Cloud Dataflow applications using the enterprise tile versions by creating tasks and stream jobs.
- Contributed to operational readiness, governance reviews, and team mentoring.
Senior Developer Team Lead
Citibank
07.2016 - 12.2019
- Delivered data analysis and reporting solutions with strong focus on accuracy, automation, and auditability.
- Enterprise API delivery and onsite-offshore coordination
- End-to-end SDLC ownership for financial services clients
- · Led development of enterprise REST APIs and backend services supporting large-scale financial and business applications.
Senior Systems Engineer
Infosys Limited
08.2011 - 12.2014
- Mission-critical banking, loyalty, and remittance platforms
- Secure enterprise integrations and compliance-ready systems
Education
Master of Science - Computer Science
University of North Carolina At Charlotte
Charlotte05.2016
Bachelor of Technology - Information Technology
Jeppiaar Engineering College
India05.2011
Skills
- Site Reliability Engineering (SRE)
- Cloud Engineering & Platform Expertise
- DevOps, CI/CD GitHub Actions & Automation
- Enterprise Application Development
- Backend Engineering & API Design
- Cloud Platforms (PCF, GCP, AWS)
- Containerization & Orchestration
- Incident & Reliability Engineering
- Operational Governance
- Software Architecture & Design Patterns
- AI Tools, Automation & Agentic Systems
Certification
- CKAD – Certified Kubernetes Application Developer
- Schwab Cloud Pilots License (CPL)
- UT Austin Post-Graduate Program – Generative AI
Core Capabilities
- Platform Engineering & Reliability
- Kubernetes, CaaS, GKE (On-Prem)
- Cloud-Native & Hybrid Platforms (PCF, GCP, AWS)
- CI/CD & GitHub Actions
- Architecture Reviews & Governance
- AI Enablement & Agentic Development (MCP)
- Cross-Team Delivery
- Mentorship, Enablement & Upskilling
Key Leadership Impact
- Owned delivery and reliability of critical internal platforms, improving operational consistency and reducing friction for application teams.
- Led Kubernetes and CaaS enablement, accelerating adoption of standardized cloud-native patterns across development teams.
- Established governance and deployment guardrails in partnership with security and platform stakeholders, strengthening trust at scale.
- Drove CI/CD and GitHub Actions standardization, improving developer productivity and deployment repeatability.
- Mentored engineers and emerging leaders through hands-on guidance, demos, and structured enablement sessions.
- Championed AI and agentic initiatives, including MCP-based integrations and internal AI agents, to modernize operational workflows.
Timeline
Manager, Software Development & Engineering
Charles Schwab
09.2022 - Current
Senior Specialist, Software Development & Engineering
Charles Schwab
12.2019 - 09.2022
Senior Developer Team Lead
Citibank
07.2016 - 12.2019
Senior Systems Engineer
Infosys Limited
08.2011 - 12.2014
Master of Science - Computer Science
University of North Carolina At Charlotte
Bachelor of Technology - Information Technology
Jeppiaar Engineering College