Harishkumar Patil
Nishikasai, Tokyo
Summary
Senior Lead Solutions Architect | Enterprise Modernization & AI Strategy
Location: Nishikasai, Tokyo, Japan 1340088 Phone: 08079668142 | E-mail: patil.harish1008@gmail.com
Strategic Enterprise Architect with 16 years of experience orchestrating large-scale digital transformations within global financial and insurance sectors. Currently leading the MetLife Japan Marketing Domain as a Lead Architect, specializing in the replacement of complex legacy systems with high-performance, cloud-native architectures. Expert in AI-driven ecosystem design, including Model Context Protocol (MCP) for seamless AI-tool integration, aligning technical roadmaps with business objectives to deliver mission-critical, future-proof platforms.
- Enterprise Architecture: Domain-driven design (DDD), microservices orchestration, and API-first strategies for high-scale global platforms.
- AI & Agentic Workflows: Implementation of Model Context Protocol (MCP) to standardize AI-to-data connectivity and building scalable Agentic AI frameworks.
- Cloud-Native Transformation: Expert-level deployment and governance on Azure, GCP, and AWS utilizing serverless and containerized environments.
- Modernization Patterns: Strategic use of Strangler Fig patterns to decommission legacy debt while ensuring zero-downtime transitions.
- Financial Domain Expertise: Deep subject matter expertise in Life Insurance (Policy, Claims, Underwriting), Equities Trading, and Fintech ecosystems.
Lead Architect (Marketing and sales Domain)| MetLife Japan, Tokyo | 2024-07 – Present
- Enterprise Modernization: Orchestrating the end-to-end solution design for a strategic, enterprise-wide modernization of legacy insurance systems.
- AI Ecosystem Design: Integrating AI technologies and Azure cloud services to create responsive, data-driven marketing and underwriting platforms.
- Architecture Governance: Defining enterprise application standards and cloud adoption strategies using microservices, APIs, and DevOps best practices.
- Strategic Leadership: Collaborating with C-suite stakeholders to define technical roadmaps that prioritize scalability, security, and high availability.
Software Architect (A2P SMS/CPaaS) | Rakuten Mobile Inc, Tokyo | 2021-07 – 2024-06
- Led an international team to build an extensible microservices framework for a global Messaging as a Platform (MaaP) functionality.
- Managed architectural backlogs and iterative development cycles using Agile/Scrum principles.
- Tech Stack: Java/J2EE, Spring, Redis, Couchbase, NodeJS, GCP, Docker, Kubernetes.
Architect / Team Leader Manager | Eagle Eye Network, Tokyo | 2019-01 – 2021-07
- Directed 12 Java developers in creating cloud-based video surveillance and AI video analytics solutions.
- Modernized legacy REST services to enhance global system functionality and performance.
Senior Site Reliability Engineer | Trading Screens Japan, Tokyo | 2017-01 – 2019-01
- Engineered automation tools for global electronic trading platforms processing billions of transactions.
- Leveraged Microservices and SRE principles to foster collaboration between product owners and engineering teams.
- Architectural Paradigms: Event-Driven Architecture (EDA), Microservices, Serverless, Service-Oriented Architecture (SOA).
- AI/ML Integration: Model Context Protocol (MCP), Vector Databases, RAG (Retrieval-Augmented Generation) workflows.
- Backend & Languages: Java/J2EE (Spring Boot), Python (Django/Flask), Go-Lang, Node.js.
- Data & Cloud: Azure, GCP, AWS, PostgreSQL, MongoDB, Cassandra, Redis.
- DevOps: Docker, Kubernetes (K8s), CI/CD pipelines, Terraform, Kibana, Grafana.
- MBA in General Management – SIMB, Pune.
- Bachelor of Engineering (Computer Science) – Pune University.
- Oracle Certified Java Programmer (OCJP).
- Award: Hackathon (Rackathon) Winner, Rakuten Inc Tokyo (2016).
- Award: High Performer Award for New Product Development, NTTDATA (2014).
Overview
16
16
years of professional experience
2
2
Certifications
4
4
Languages
Work History
Lead Software Architect
Metlife Japan
Tokyo, Tokyo
07.2024 - Current
- Enterprise Modernization: Orchestrating the end-to-end solution design for a strategic, enterprise-wide modernization of legacy insurance systems.
- AI Ecosystem Design: Integrating AI technologies and Azure cloud services to create responsive, data-driven marketing and underwriting platforms.
- Architecture Governance: Defining enterprise application standards and cloud adoption strategies using microservices, APIs, and DevOps best practices.
- Strategic Leadership: Collaborating with stakeholders to define technical roadmaps that prioritize scalability, security, and high availability.
- Optimized database structures for improved query performance, resulting in faster response times for end users.
- Mentored junior developers on best practices in software architecture design and coding techniques, fostering a culture of continuous learning and growth within the team.
- Enhanced software performance by identifying and resolving system bottlenecks through thorough code analysis and optimization.
- Conducted regular performance evaluations of existing systems for potential improvements or upgrades based on emerging trends or changing business needs.
Software Architect
Rakuten Mobile Inc
08.2021 - 07.2024
- As a software architect for the A2P SMS Platform at Rakuten Group, I am leading a team of Java developers in India and Japan.
- The project focuses on incorporating Messaging as a Platform (MaaP) as a core functionality within the CPaaS platform, thereby offering a new communication channel for B2B clients.
- This innovative approach enhances the engagement between enterprises and Link App users, providing an additional revenue for communication.
- My role involves researching, designing, and writing new software programs, with a particular emphasis on developing an extensible framework for microservices.
- Applied established development methodologies and Scrum process which involves integrating agile principles, utilizing iterative development cycles, fostering cross-functional collaboration, maintaining a prioritized architecture backlog, conducting sprint planning and reviews for architectural tasks, emphasizing continuous improvement, and adapting to changing project requirement
- Designed architecture strategies for large-scale system-wide application deployments.
- I mentored a team of 7 individuals, fostering a collaborative environment by sharing skills and expertise, while actively encouraging each team member to contribute ideas and suggestions for continuous improvement.
- Technologies: Java/J2EE, Spring rest web services, Redis, Micro services, Couchbase, NodeJS, Google Cloud, Docker, Kubernetes, Database : Ldap,, MySQL
- Operating System(s): Linux
Architect /Team Leader Manager
Eagle Eye Network
01.2019 - 08.2021
- Eagle Eye Networks, Inc. is an American company providing cloud-based video surveillance products for physical security and business operations applications.
- Cloud video surveillance solution & AI video analytics.
- Lead a team of 12 Java Developers, helping the creation of a new REST web service and the modification of existing web service operations to enhance functionality and meet project requirements.
- Technologies: Java/J2EE, Spring rest web services, Redis, Micro services, Cassandra, NodeJS, Google Cloud, Docker, Kubernetes, Go-Lang Database : Cassandra, Ldap,, MySQL files
- Operating System(s): Linux, Centos
- Project Name: Trading Platform
- Identified and corrected deficient performance and behaviors to achieve maximum productivity
- Stayed calm, collected and logical during stressful moments to identify and implement optimal solutions
- Evaluated employee performance on yearly basis and coached and trained 8 team members, increasing quality of work and employee motivation
- Resolved customer service issues by finding immediate solutions, increasing customer confidence, and decreasing escalations to executive office
Senior Site Reliability Engineer
Trading Screens Japan
01.2017 - 01.2019
- TS provides the technology and information that drives today’s global electronic trading with billions trade (transaction) through platform
- Equities Trading /Fixed Income Trade/ Derivatives Trading/Futures Trading / Equity Options Trading/FX Trading /Investment Management
- Implement concept of an “error-budget” is leveraged to foster collaboration between product owners, developers
- Creation of automation Tool and building scalable solutions to the problems of delivering reliable services
- Technologies: Microservices, Java/J2EE, Python, Docker, kubernaties, NodeJS, Google Cloud, Clojure, Spring rest web services, Hibernate, Ruby, Kafka, elastic search
- Database : Ldap, Oracle, MySQL files
- Operating System(s): Linux, Centos
- Applied engineering principles to troubleshooting and followed up on defined corrective actions to prevent reoccurrences.
Lead Engineer
Global Rakuten Super Points, Rakuten Inc Ltd Tokyo
06.2015 - 01.2017
- Rakuten Super Points is the point program for Rakuten Group
- Users can earn 1 point for every JPY 100 spent on Rakuten Group purchases, and points can also be used for a range of Rakuten and partner services Earn, use and redeem Rakuten Super Points with this useful points service API
- This System used by billions of people all over world where Rakuten operate at very huge scale.
- Leading team 5 Java developer with scrum and Analyzing user requirements and Creating technical specifications documents
- Researching, designing and writing new software programs and Developed extensible framework micro-services
- Worked in Systems development group and collaborative development of Web services, with Service Oriented Architectures (SOA)
- Technologies: Web Services, Java/J2EE, Spring, Hibernate, query, Apache, Cassandra, MySQL Database: Cassandra, Ldap, Oracle, files
Senior Software Engineer
NTTDATA GTS Inc
03.2013 - 06.2015
- Oracle Certified Java Programmer with Strong Software development and design experience with large scale distributed system
- Having strong domain knowledge of Finance, Ecommerce and Telecommunications Domain
- Experience in developing highly scalable web services and microservices using Spring, JAX-RS and flask frameworks
- Experience building attractive user interfaces for complex applications with customer focus approach with HTML, JSP, JSTL
- Experience in test Automation, memory profiling and performance tuning using tools like Selenium, JProfiler, JConsole
- Worked and Lead large and small teams for development of Web based Enterprise Applications
- Worked in all stages of Software Development Lifecycle with Agile Development, and Design patterns
- Experience in gathering requirements from the application users Formulate the requirements and system design
- Having good leadership and solid organizational skills with complex problem-solving and decision-making quality
- Strong communication skills and Mentored junior team members and fresh engineers
- Genuinely enthusiastic to learn new technologies and able to perform effectively outside the comfort zone, IT service management with process improvement frameworks and methodologies
- This system uses Information Technology Infrastructure Library (ITIL and has three modules: 1
- Incident management 2
- Change management 3
- Configuration management
- Researching, designing and writing new software programs
- Analyzing user requirements and Creating technical specifications documents
- Python, Java/J2EE, Spring, Hibernante, JQuery, Apache
- Database: Ldap, PostgreSQL, files
- Operating System(s), Linux.
Senior Software Engineer
Invast Securities, Kumon and Softbank, NTTDATA Inc
06.2010 - 03.2013
- Invast Securities is one of the largest FX brokers in Japan and has total client deposits of around 55 billion JPY ($696 mllion)
- Front module is used to deposit and withdraw of money by customer
- Reports of trading(cash balance reports, cash flow reports, Open position)
- Kumon-Bonus Salary Recording System” is a web-based application that deal with Salary, Bonus, Promotion of the Kumon employee, appraisal cycle
- Researching, designing and writing new software programs
- Provided programming support, user requirements analysis and design of Web application for 5 million users
- Monitoring junior resources and Configuration Controlling, responsible for development
- Technologies, Java, Spring framework (MVC with JSP), Hibernate, Web Services Rest, Maven build tool, JQuery, JavaScript
- Declaration: I am also confident of my ability
- I hereby declare that the information furnished above is true
- PLACE: Tokyo Harishkumar Patil
Education
Bachelor of Engineering - Computer Science
Pune University
Master of Business Administration - General Management
SIMB
Pune Skills
Java, J2EE, Spring, Hibernate, jQuery, Nodejs, Angular, Python, Ruby, JSP, Servlets, JDBC, Struts1, Struts2, Web Services Restful/ SOAP, JavaScript, Kafka, Microservices, docker, kubernaties, GolangGoogle Cloud (GCP), AWS, AzureLinux, Solaris, Centos, Windows (98, XP, Vista,7,10, server 2008,2012)Cassandra, MySQL, Postgres SQL, Oracle, Ldap, EhcacheRedis, Elastic Search, RabbitMQDocker, Maven, Griddle, Selenium, Cucumber, Eclipse, Jira, confluence, Junit, JMeter, Kibana, Grafana, graphite
Service-Oriented / Micro services Architecture
Software Architecture
Mentoring and training
Architecture Improvements
Software System Development
Mentoring and Training
Architectural Illustration
Agile Project Management
Change Planning Management
Application Development
Data Modeling
Risk Assessment
Software Development
Framework Development
Additional Information
- Achievement & Recognition Awards: , Hackathon (Rackathon) Winner at Rakuten Inc Tokyo - 2016 Long term service Award of NTTDATA Inc. Tokyo. –2015 High Performer Award (High Quality Software development with 100 % responsibility of Entire new product Development), -2014 Outstanding Contribution Award (For Redesigning of entire system and development of bug free code)-2013 Best Employee Award (For showing temperament and dedication towards work for entire year) – 2012
Accomplishments
- Hackathon (Rackathon) Winner at Rakuten Inc Tokyo - 2016
- Long term service Award of NTTDATA Inc. Tokyo. –2015
- High Performer Award (High Quality Software development with 100 % responsibility of Entire new product Development), -2014
- Outstanding Contribution Award (For Redesigning of entire system and development of bug free code)-2013
- Best Employee Award (For showing temperament and dedication towards work for entire year) – 2012
Certification
Oracle Java Certified
Timeline
Lead Software Architect
Metlife Japan
07.2024 - Current
Software Architect
Rakuten Mobile Inc
08.2021 - 07.2024
Architect /Team Leader Manager
Eagle Eye Network
01.2019 - 08.2021
Senior Site Reliability Engineer
Trading Screens Japan
01.2017 - 01.2019
Lead Engineer
Global Rakuten Super Points, Rakuten Inc Ltd Tokyo
06.2015 - 01.2017
Senior Software Engineer
NTTDATA GTS Inc
03.2013 - 06.2015
Senior Software Engineer
Invast Securities, Kumon and Softbank, NTTDATA Inc
06.2010 - 03.2013
Oracle Java Certified
05-2010
Bachelor of Engineering - Computer Science
Pune University
Master of Business Administration - General Management
SIMB