# Darryl A. > Staff Software Engineer at Twilio Location: San Francisco Bay Area, United States Profile: https://flows.cv/darryla ## Work Experience ### Staff Software Engineer @ Twilio Jan 2022 – Present | San Francisco Bay Area ### Staff Software Engineer @ Walmart Labs Jan 2018 – Jan 2022 Leading end-to-end shipment track and trace and shipment management platform in the Walmart transportation area. Built a platform to track both inbound and outbound shipments across internal and carrier networks. The system provides an Enhanced delivery experience for customers and provides key business metrics visibility to the business. Track On-Time Delivery metrics, support customer shipment cancellations, Trigger package expiry in store, integrate with last-mile delivery, support various pick up and delivery use cases, Report latency in receiving tracking updates to the carrier. Support platform for international markets. Build one tracking system across the entire Walmart network. Designed and implemented the tracking and shipment platforms from scratch Interacted with cross-functional teams, product managers to design and implement various use cases around pickup and delivery Currently Leading efforts to build a platform to provide visibility to global freight forwarder shipments from suppliers to Walmart import distribution centers through the ocean, air, rail, and road. Cover Technical Impact of all involved systems and technical approach for impacted systems. Provide estimates as per product scope and high-level business cases. Performance Tuning, Automation and Defect Fixing and Testing application Participate in Requirement discussion to ensure product feature meet customer expectation and Ensure successful product roll-out into production. ### Senior Software Engineer @ Walmart Labs Jan 2015 – Jan 2018 | San Francisco Bay Area Part of the team building the critical Catalog pieces for Walmart E-Commerce. This includes all aspects from product item ingestion/ shipping and pricing set up/ Read orchestrator to consolidate all these to be viewed on the site. Item set up at scale is an interesting problem to solve and have been part of the journey growing from a few millions to tens of million SKUs. Building of super low latency critical computational micro-services such as Pricing, Shipping at massive volume and scale. Tech Stack Java8, Apache Kafka, Apache Cassandra, Apache Spark, OneOps, Splunk, Couchbase, Hadoop, Spring, Spring Boot ### System Analyst @ Accenture Jan 2014 – Jan 2015 | New York Client is a global leader in asset and wealth management services. Project serve four distinct client groups through three businesses: institutions and retail clients through Asset Management services, ultra high net worth clients through the Private Bank; and high net worth clients through Private Wealth Management. We Provide investment management products and services to institutional and individual investors worldwide and requires one to work on multiple middleware integration projects in all stages of the project lifecycle: requirements definition, development, and implementation in production environments. • Worked on building a rest bus server • Worked on building the rest bus filter to do idem potency check • Improved search functionality using java concurrency • Designed and developed a framework for improving server logging • Part of the defect resolution team which is responsible for solving client issues • Resolved memory leaks and performed Java performance tuning • Involved in code quality reviews • Writing good unit test cases • Worked on release management activities ### Systems Analyst @ Accenture Jan 2010 – Jan 2015 | Mumbai, India Contributed to the Accenture Life Insurance Platform (ALIP) an industry-leading life insurance platform. We worked in building a batch processing system that was used for processing both inbound and outbound requests using spring batch framework. We also developed a system to capture new business application and also built web service interface to allow other applications in the enterprise to push in new business requests. • Worked on multiple Web Service interfaces to interact with 3rd party systems using ACORD format, which is an insurance standard for electronic data interchange. • Developed batch extracts using complex SQL as per clients requirements • Debugged and solved customer issues and integrate into product code base • Communicated with client and business analysts for various problem scenarios • Performed and led code reviews • Active member of analyze and design phase for multiple client implementations. • Worked with QA team to ensure product meets quality standards • Streamlined the software development lifecycle by integrating disparate systems and automating manual processes. ### Software Engineer @ Computer Sciences Corporation Pvt. Ltd Jan 2007 – Jan 2010 | Noida, India VP/MS is a Product for Insurance Domain. The complete product data is centralized regardless of the systems used for illustration. Standard methods are used for access, update, configuration and reuse of product definitions across all product design functions. Consuming systems can execute directly against product definitions. Accepts and uses published product information in ACORD PPfA or PPFL XML. Publishing tool with import and export functions. Supports system-specific extensions to ACORD plan information standards allowing legacy system compatibility • Working on a Development project, involved in interaction with client to understand new Requirements • Active member of Analyze and Design phase for multiple client implementations. • Responsible for Bug Fixing and enhancement of Java as well as C++ code. • Mentoring new Team members. ### Software Engineer @ Birlasoft India Pvt. Ltd Jan 2007 – Jan 2007 | Noida The Build Forge Scripting Project is a Scripting (Ant) Project. It standardizes the scripting process by ensuring adherence to coding, quality and deployment guidelines. In this project we develop and test Build Scripts for 200+ applications. The Onsite/Offshore team was engaged to inform compliance and timely completion of all scripting activities by the target completion date. • Written ANT scripts to Automate build process for various applications in Metlife • Interacted with the various Application Maintenance teams to understand the Applications deployment details in the Enterprise Architecture • Prepared the knowledge transfer document and delivering it along with the build script. ### Software Engineer @ Birlasoft India Pvt. Ltd Jan 2005 – Jan 2007 | Noida,India Risk Management System is a software system to detect fraudulent shipments and ensure customs interventions. It focused on high-risk transactions. Application was built to manage policies, procedures. It also implemented practices to identify, analyze& monitor risk. The aim was to streamline the assessment of imports and exports of goods using advanced tools in an objective manner. • Part of the team that developed a rule based engine for defining business rules • Worked on development of inbound Interfaces as per requirement specification • Worked on unit testing and defect fixing. • Interacted with client and business analyst to understand new requirements ## Education ### Bachelor of Engineering in Information Technology Padre Conceicao College of Engineering, Goa University, Goa ## Contact & Social - LinkedIn: https://linkedin.com/in/darryl-a-460ab814 --- Source: https://flows.cv/darryla JSON Resume: https://flows.cv/darryla/resume.json Last updated: 2026-04-12