Stefan Auw Yang

• Full-Stack
• Cloud Native
• AWS
• LLM
• Data
• SRE

Experienced in architecting and engineering cloud-native distributed applications, including traditional Machine Learning and LLM engineering. Skilled in writing reusable libraries and developing end-to-end applications using Full-Stack Java, Python, ReactJS with open-source frameworks, leveraging cloud services.

Proficient in troubleshooting technical issues across various engineering disciplines and programming languages, particularly Java, Python, and ReactJS. Experienced in using SQL and Python for data analysis, training ML models, and fine-tuning LLMs.

Proven track record in designing and delivering high-quality production code, conducting technical training for diverse audiences, improving delivery efficiency through SRE and DevOps practices, and securing internet-facing and mission-critical applications. Experienced in leading and mentoring engineering teams, with hands-on expertise in global banking and financial services.

Experience

Vice President | Cloud Solutions Engineering and Architecture, JPMorganChase

(Feb 2022 - Present)

• Engineering distributed platforms leveraging public cloud.
• Developing solutions for data modeling standardization, ensuring data quality, lineage, and real-time streaming analytics.
• Enabling low-latency, high-throughput data processing at scale using in-memory data grids.
• Facilitating rapid adaptation to evolving data models and supporting data product development.
• Supporting data governance and ML model training on public cloud across various application domains.

Skillsets:

• Java, Spring, Kubernetes, AWS EKS/ECS/Lambda/MSK, Terraform, Kafka, Hazelcast distributed In-Memory Data Grid, Redis, ReactJS, Scala, Python, Cloud SRE, Terraform, Application Observability (logs, traces, metrics) for real-time Monitoring.
• Cloud Computing (AWS, Azure) & Container Technologies (Docker, Kubernetes)
• Application Security (AuthN/AuthZ/Encryption/PKI)
• Application Integration/Messaging/Streaming, Resiliency and System Reliability Engineering
• Cloud Infrastructure Engineering and Automation (Terraform IaaC)
• Data Engineering,
• ML / LLM
• Cloud Financial Management (FinOps)
• Deliver Business Value by leveraging Cloud Technology
• Project Leading, Planning & Forecasting

Lead Security Developer | CIB Channels Security, Standard Chartered Bank

(July 2017 – Feb 2022)

Hands-on development of application security posture, IAM, encryption, transaction signature & verification, API security, fraud monitoring, HSM, SSO, 2FA, DDoS protection, and threat detection for CIB Global Channels Applications, including Straight2Bank and API Banking.

Skillsets: Java, Spring, Hibernate, Docker, Kubernetes, AWS, Terraform, Kafka, Python, ReactJS, ML, Ansible, Hazelcast, Cassandra, Scala, Security (Encryption, Digital Signing & Verification, mTLS, OAuth, Blockchain), SRE, DevOps, Kong API Gateway, Nginx, Scrum Master.

Senior SRE Engineer | Electronic FX Trading, DBS Bank

(May 2014 - July 2017)

• Developed, maintained, and supported multi-threaded electronic FX investment & trading applications.
• Ensured regulatory compliance by resolving penetration test issues.
• Implemented DDoS Layer 7 protection using Akamai, DNS, and load balancing solutions.

Projects: FX, Treasury Market, Single Dealer Platform, Amazon AWS, Akamai, SSO, Identity Management, Authentication, Authorisation & Security.

Skillsets: Java, Multi-threading, Low-latency systems, Security (Authentication, OAuth), Penetration Testing, DNS/Networking, AWS, DevOps, SRE.

Senior Software Engineer | Compliance, BNP Paribas Wealth Management

(Jul 2011 - May 2014)

Developed and maintained applications for wealth management document workflow, eBanking, and CMS integration.

Projects: Wealth Management Document Repository, Global Internet Web Publishing, iMeeting mobile for Relationship Manager, Private Banking Portal.

Skillsets: Java, NoSQL, IBM Lotus Domino, Oracle, PL/SQL, XSLT/XML/JSON, SOAP/REST APIs, Server-side JavaScript, Spring (Core, MVC, Integration).

Application Consultant | Singapore Public Service Infrastructure, NCS

(Nov 2010 - Jul 2011)

Provided development, maintenance, and Level 2 production support for Singapore’s government integrated payment e-services and public service infrastructure.

Projects:

• Public Service Infrastructure (PSI) Payment module,
• Singapore People Data Service,
• Electronic Data Exchange,
• ePoll.

Skillsets: Java, UNIX Scripting, Oracle PL/SQL, XML web services, software-based load balancing.

Senior Software Engineer | Payment Solutions, NETS

(Oct 2008 - Nov 2010)

Hands-on development, maintenance, and support iNETS Kiosk web service gateway, payment, enterprise service bus, web administration console, reconciliation, kiosk client remoting, monitoring, alert, bill payment and ticketing channels integration.

Projects: iNETS Kiosk, bill payment, travel ticketing, insurance booking, lucky draw, loyalty program, etc.

Skillsets: Java, Multi-threading, Spring Core / MVC, Enterprise Service Bus, Camel, Quartz, Hibernate / JPA, SOAP web-service with WSDL contract

Software Engineer | Research & Development, BINUS University

(Sept 2007 - Aug 2008)

Enhance Software Laboratory teaching subjects by adopting latest industry software engineering practice, such as: Artificial Neural Network / Deep Learning, Design Patterns, Application Development, Design and Architecture. Develop and maintain Software Laboratory Center applications to support software laboratory teachers and operational activities.

Skills: C / C++, Multi-threading, Java / JSP / Servlet, PHP, JavaScript, HTML, MS Visual Studio .NET, MySql / Oracle / MS sql-server, rule based system / MatLab

Software Engineer | University Laboratory Teacher, BINUS University

(Sept 2006 - Aug 2007)

Teaching and evaluating university students with various practical laboratory software engineering subjects such as:

• Algorithm and Data Structure
• Object Oriented Programming
• Advanced Web Programming
• Artificial Neural Network / Deep Learning
• PL/SQL
• etc.

Skillsets: C / C++, Java / JSP / Servlet, PHP, JavaScript, HTML, MS Visual Studio .NET, MySql / Oracle / MS sql-server, rule based system / MatLab

Software Engineer | Advanced Technology University Lab, BINUS University

(Aug 2005 - Sep 2006) - Part Time

Develop workflow application to support Information & Technology operational activities for BINUS UNIVERSITY using IBM Lotus Domino.

Skillsets: IBM Lotus Domino, C/C++, HTML, JavaScript, ASP

Licenses & certifications

• AWS Certified Solution Architect - Professional
• AWS Certified Machine Learning - Specialty
• AWS Certified Data Engineer - Associate
• Microsoft Certified Azure Data Engineer Associate
• Microsoft Certified Azure Fundamentals
• CKAD: Certified Kubernetes Application Developer
• CKA: Certified Kubernetes Administrator
• FOCP: FinOps Certified Practitioner
• Hashicorp Certified: Terraform Associate
• Certified Site Reliability Engineer (SRE) Foundation
• Sun Certified Java Programmer
• HackerRank Certified in ReactJS
• Certified ScrumMaster

Education

BINUS University, Computer Science & Applied Mathematics

(2003 - 2008)

Obtained double degree in:

• Computer Science - Specialization in Artificial Intelligence
• Applied Mathematics

Skills

• Cloud Computing: Amazon Web Services (AWS), Microsoft Azure, DNS
• Data Engineering: ETL, Streaming, SQL, No-SQL
• AI-ML: Traditional ML, LLM models (OpenAI, AWS Bedrock), LangChain
• SRE: Kubernetes, Docker, Ansible, Observability, Git, DevOps tooling
• UI Development: ReactJS, HTML, CSS
• Backend Development: Java, Python, Scala, REST API, GraphQL
• Application Security: Symmetric & Asymmetric Encryption, OAuth, Akamai