Krishnan Subramanian
Sydney,Australia
Summary
Senior Engineering Manager with 20+ years’ experience in BFS, specialising in GenAI, MLOps, and cloud-native platforms. Led end-to-end AI/ML platforms, large-scale cloud migrations, and global engineering teams across various geography.
Overview
21
21
years of professional experience
9
9
Certificate
Work History
Snr. Engineering LT, MLOps, Agentic AI & MLOps
CBA
01.2020 - Current
- Built and grew AI engineering teams (25+ engineers) over multiple years, personally hiring, mentoring, and coaching engineers while creating an environment of high trust, ownership, and sustained innovation.
- A hands-on Senior Engineering Manager with 20+ years in Banking, combining deep domain knowledge with active involvement in design decisions, architecture reviews, and production problem-solving across AI platforms.
- Delivered real-world GenAI and Agentic AI systems into production, including RAG-based solutions and orchestrated agent workflows, taking ideas from early experimentation through to reliable, scalable, and governed enterprise deployments.
- Shape AI technology strategy and architecture: Provide technical leadership on complex, data-intensive AI systems, ensuring scalability, performance, reliability, and long-term success in financial services.
- Managed and evolved an end-to-end MLOps platform within the Chief Data Office, overseeing model management, development, training, real-time deployment, and continuous monitoring for critical banking decisioning systems.
- Instrumental in defining the roadmap and strategy for platform capabilities and engineering excellence, driving FinOPS and Innovation programs to optimize cost, reliability, and availability across distributed systems.
- Championed and implemented DevSecOps maturity, integrating static and dynamic analysis tools (Snyk, Sonar, Checkmarx) into automated CI/CD pipelines (GitHub Actions, Terraform) to 'shift left' on security and quality.
- Guided engineers in building scalable solutions, ensuring adherence to the 6 pillars of the AWS Well-Architected Framework (Security, Reliability, Performance Efficiency, Cost Optimization, Operational Excellence).
- Led multiple initiatives in AI Acceleration squad, providing tooling and platforms for cutting-edge AI solutions, including LLM-based cognitive search (RAG) for HR systems and developing Digital Human solutions.
- Tools/Technology: Python, AWS, Sagemaker, H2O, MLFlow, Ansible, GitHub Actions, Terraform, Linux, JIRA, Confluence, Jenkins, Splunk, App Dynamics.
Platform & Cloud Transformation Manager
Macquarie
01.2018 - 01.2020
- Managed the end-to-end transformation of complex Tier-1 PEGA applications from on-premise to AWS cloud, adhering to Agile methodologies.
- Oversaw platform and infrastructure setup, managing DevOps suite for automated server builds and deployments, significantly reducing deployment cycles from weekly to daily.
- Managed an operations team supporting 1000+ users and 150+ developers/testers, ensuring platform stability, infrastructure reliability, and rapid issue resolution.
- Tools/Technology: PEGA, AWS, Linux, Terraform, Shell scripting, JIRA, Confluence, Stash, Jenkins, Nexus, Splunk, App Dynamics, Remedy.
Platform & Technical Lead, Online Banking Application
Westpac
01.2012 - 01.2018
- Built and led a 24x7 L2 & L3 Platform & Technical support team for Westpac Live (online banking), focusing on development, technical guidance, outage coordination, and incident management.
- Implemented automated content release using Source Tree, Git Hub, Jenkins/Bamboo, and CA RA.
- Tools/Technology: Microsoft .NET 4.0, IIS 7.0, C#.NET, TFS, SQL Server 2008, Java, Linux, HTML 5.0, CSS, JS & XML, CA RA, Jenkins, Bamboo, Git Hub, Source Tree, Remedy, Splunk.
Technical Lead, TB Application Development and Maintenance
Lloyds Banking Group
01.2004 - 01.2012
- Started as a developer and then started to lead 8-member team in the development and maintenance of Telephone Banking Applications (UNIX & Windows based MW services).
- Involved in creating automation rules for an AML project, leveraging transactional and customer records to identify suspicious activity.
- Tools/Technology: UNIX, Microsoft .NET 2.0, Visual Basic 6.0, C, C++, Pro
- C, C#.Net, Oracle SQL, SQL Server 2000, Visual SourceSafe.
Education
Bachelor of Engineering (Hons) -
Birla University of Technology & Science
Pilani, India05.2004
Skills
- MLOps & AI: Agentic AI, Gen-AI, Model Management (Development, Training, Deployment, Monitoring), Real-time ML, LLM Platforms (RAG, Digital Human Solutions), Kubeflow (concepts), Ray (understanding of distributed ML), Confluent (data streaming principles)
- Cloud & Infrastructure: AWS (EKS, S3, IAM, EC2, Lambda, Fargate), Kubernetes, Terraform, Linux, UNIX, Shell Scripting, Docker (implied)
- DevOps & CI/CD: GitHub Actions, Jenkins, Ansible, Snyk, Artefactory, Git, Jira, Confluence, ArgoCD (understanding of GitOps)
- Programming Languages: Python (strong), Java, C, C#Net, C, Pro
- C, Visual Basic 60, HTML 50, CSS, JS, XML
- Databases: Oracle SQL / PLSQL, MS SQL Server 2008, Sybase
- Methodologies: SAFe Agile, Kanban, ITIL (Service Design, Strategy, Transition, Continuous Service Improvements), FinOPS, AWS Well-Architected Framework
- Engineering Leadership
Accomplishments
- Built and scaled a GenAI- and Cloud-native engineering organisation, mentoring 100+ engineers into senior technologists, staff engineers, and engineering leaders, with a strong bench in LLM engineering, MLOps, platform engineering, and distributed systems, materially strengthening the enterprise’s long-term technical leadership pipeline.
- Recognised with the People’s Leader Award for consistently developing high-performing, future-ready engineering teams, embedding a culture of AI-first thinking, cloud excellence, and operational rigor, and setting new internal benchmarks for coaching effectiveness and talent acceleration.
- Founded and led the enterprise Digital Human (GenAI) platform, delivering a production-grade, secure, and scalable AI capability integrating LLMs, real-time inference, MLOps pipelines, and cloud orchestration; the initiative was nominated for Best Innovation at the CEO Forum, reflecting its strategic, enterprise-wide impact.
- Drove critical strategic initiatives at the intersection of GenAI, MLOps, and Cloud, translating executive priorities into measurable engineering outcomes, accelerating time-to-market for AI capabilities, and ensuring alignment with business value, risk management, and long-term platform sustainability.
Certification
AWS Machine Learning Speciality | Certified AWS Developer | Certified SAFe Agilist | AWS Architect | ITIL Certified Service Management | Certified Security Ethical Hacker | Certified Prince2 Practitioner | Certified Telerik Mobile Platform developer
Timeline
Snr. Engineering LT, MLOps, Agentic AI & MLOps
CBA
01.2020 - Current
Platform & Cloud Transformation Manager
Macquarie
01.2018 - 01.2020
Platform & Technical Lead, Online Banking Application
Westpac
01.2012 - 01.2018
Technical Lead, TB Application Development and Maintenance
Lloyds Banking Group
01.2004 - 01.2012
Bachelor of Engineering (Hons) -
Birla University of Technology & Science
RESIDENT STATUS
Australian Citizen