Susu D. Email & Phone Number

Tokyo, Jp

Toronto, On, Ca

Toronto, Ontario, Canada

- Played a key role in rebuilding and migrating to a cloud-based, Next Generation event tracking and tracing system for a major Canadian logistics company, orchestrating the handling of millions of new daily packages, each precipitating a cascade of transactional messages.- Key contributor to architectural design and technology strategy, enhancing system efficiency and maintainability.- Developed and maintained critical kernel services, including unique identifier management and enrichment, ensuring zero message loss and optimal performance during peak loads.- Oversaw and debugged system operations, working closely with the performance testing team to conduct extensive analyses and improve system capacity to handle double or triple peak loads.- Applied best Akka practices to bolster system resilience and performance, ensuring smooth operations during demanding conditions such as Boxing Day and Christmas season.- Akka, Scala, Streaming, Functional programming, Event Sourcing, CQRS** YoppWorks is now part of Improving

Toronto, Ontario, Canada

- Akka, Scala, Streaming, Functional programming, Event Sourcing** YoppWorks is the leading consulting organization and industry-recognized expert in the Scala programming language, Akka, containerized cloud-native environments, and the application of Reactive Architecture.

Within 23 Wards, Tokyo, Japan

- Contributed to core Spring-boot based payment, payment assets and know-your-customer services that facilitate 4 million DAU with 10 million daily transactions and still growing - Led and contributed to various engineering improvements projects, including raising test coverage to 70% for 30+ micro-services, and re-architecting and removing cruft from multiple kernel Spring services with 30,000+ lines of code- Refactored and migrated multiple core services from Java to Kotlin- Participated in designing, implementing and maintaining a general Daas(data-as-a-service) cloud platform connecting hundreds of tables with an existing 200 plus Terabytes of data and another couple of TB data growing on a daily basis- Engaged as a core member in designing, architecting, implementing and launching a Raas(Recon-as-service) from scratch built upon the data platform with technologies such as Spark, Airflow, Hudi and languages as Scala and Python, which promotes and provides a unified inter-team/company data comparison and transaction reconciliation service, freeing service teams the hassle of creating individual micro-services and pipelines for various business needs and requirements and greatly boosting productivity and efficiency. - Contributed to Apache Hudi, a top-level Apache project and a rising data lake platform solution originated from Uber** PayPay is a Joint-Venture from SoftBank, Yahoo Japan and Paytm. With more than 36 million users and 3 million merchants already, PayPay aims to revolutionize people’s lives with payment and promote a cashless economy in Japan.

Toronto, Canada Area

- Participated in designing, developing and constructing enterprise-wide data infrastructures for processing e-commerce big data using various technologies and tools such as Kafka, Spark, Beam, Dataflow, GCP- Built real-time ETL pipeline from Kafka to streamline data into parquet on GCS and BigQuery

Toronto, Canada Area

- Led the effort to reconstruct Performance Testing traffic model from real user session data and built an end-to-end data engineering pipeline with Python, Bash, Java(Apache Beam)- Mentored coop students and junior new hires

Toronto, Canada Area

- Launched one of the largest loyalty programs in Canada, PC Optimum, which has a 20 million user base - Focus and contribute to a modern Single Page Application built with React/Redux architecture- Participate in designing and implementing a parallel mock backend within the codebase for quick prototyping for the development of the SPA front-end using SailsJS and MongoDB- Contribute to the Rx-based iOS app codebase with analytics logic implementation- Participate in Restful API design- Take charge of one of the internal Java-based tools(running within AWS) used across multiple teams and make big improvements to its application development life-cycle. - Lead and take responsibility on Performance Test scripting by utilizing Scala/Python/Grafana/Gatling to build a robust testing framework and infrastructure, helping our product scale to handle up to 20 million user volume. ** Loblaw Digital is the team responsible for building and operating e-commerce businesses for Canada’s largest and most successful retailer. We are based in downtown Toronto and operate like a start-up with extensive resources. We are an entrepreneurial, fast-paced, collaborate, and fun team working to transform the way Canadians shop. **

Greater New York City Area

- Developed new functionality across various parts of the “AgentSuite” web platform- Fixed bugs and implemented coding changes inside AgentSuite(Angular, SVG, CSS) and on backend(Python, Flask)- Converted "My Listings"​ application inside AgentSuite from Backbone(handlebar) to Angular- Integrated Google Maps API into a scalable "My Listings" web platform application - In charge of deploying process by ensuring changes are deployed from a development environment to production** Compass is a technology-driven real estate platform that is revolutionizing traditional brokerage. Founded in 2012 and have raised $210 million from leading investors, including Goldman Sachs, Founders Fund, Thrive Capital, and Institutional Venture Partners. It has earned $1 billion evaluation and become a new unicorn in NYC. **

- Collaborated with Prof. Edith Law to address health literacy problems- Developed new components for SimplyPut, a crowdsourcing platform, to help collect user experience reading medical materials using HTML, CSS, JavaScript, Python, jQuery, Bottle and SQLite.

- Collaborated with Prof. Grant Weddell to work on porting a main-memory DBMS to common lisp. The current system is mainly coded in an early dialect of common lisp with components written in C, yacc, lex and csh.- Gained knowledge and experience working in Linux environment with various tools such asGNU Common Lisp, Bison, Flex, Vim