Shailendra Verma, Developer in Toronto, Canada
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Shailendra Verma

Verified Expert  in Engineering

Software Developer

Toronto, Canada
Toptal Member Since
July 19, 2022

Shailendra has over 15 years of experience in software development, including scoping, design, development, testing, and documentation. He's proficient in big data technologies like HDFS, Spark, and Scala, in Cloud technologies, such as AWS and GCP, and back-end technologies, namely Java and Spring Boot. He has great communication and analytical skills with a proven ability to deliver and has worked with many multinational organizations like TD, RBC, Rogers, AT&T, U.S. Cellular, and Vodafone.


Scala, PostgreSQL, Amazon Web Services (AWS), ELK (Elastic Stack), Amazon EKS...
TD Securities
Scala, Akka HTTP, Akka Streams, GraphQL, MongoDB, C#, Kotlin, Java, Spring Boot...
Scala, Java, Kotlin, HDFS, Angular, Spring, Apigee...




Preferred Environment

Linux, MacOS

The most amazing...

...thing I've developed is a big data streaming catalog app for a retail giant that allows them to update offerings continuously without service interruption.

Work Experience

Senior Data Engineer | Contract

2021 - PRESENT
  • Managed design, development, and production of real-time reactive streaming services using Akka Cloudflow deployed on Kubernetes (AWS EKS) for Hudsons Bay. I incorporated Akka Persistence and Cassandra written in Scala.
  • Designed, developed, and deployed Akka cloud flow application to provide live order updates to Fraud detection systems Riskified and Forter, which was deployed onto Amazon EKS.
  • Developed and designed the Akka cloud flow app to provide a live catalog, inventory, and price updates to Instacart, which would be deployed onto Amazon EKS.
Technologies: Scala, PostgreSQL, Amazon Web Services (AWS), ELK (Elastic Stack), Amazon EKS, Grafana, Kubernetes, Akka Persistence, Akka, Apache Kafka

Senior Big Data Developer | Contract

2018 - 2021
TD Securities
  • Designed, developed, and deployed distributed real-time high-volume reactive data streams using GraphQL subscription APIs over WebSockets. Technologies used include Akka-HTTP, Akka-reactive-streams, Scala, and Kafka.
  • Designed, developed, and deployed real-time data analysis framework for ad hoc data processing using Flink, Kafka, and Scala.
  • Designed various microservices to interfaces with web front ends to supply high volume real-time data using Spring Boot and WebFlux.
Technologies: Scala, Akka HTTP, Akka Streams, GraphQL, MongoDB, C#, Kotlin, Java, Spring Boot, Apache Kafka, Flink

Senior Software Developer | Contract

2017 - 2018
  • Worked in RBC ACE Labs on big data analytics using HDFS and Scala.
  • Designed, developed, and deployed scalable customer-facing APIs using Spring Boot, Elasticsearch, Mongo DB, Apigee, and Pivotal Cloud Foundry.
  • Designed, developed, and deployed Spring Boot-based microservices using Spring Service Registry to set up authorization and authentication endpoints for several customer APIs.
Technologies: Scala, Java, Kotlin, HDFS, Angular, Spring, Apigee, VMware Tanzu Application Service (TAS) (Pivotal Cloud Foundry (PCF))

Development Lead

2014 - 2017
  • Designed, developed, and deployed complex business functionality onto the Amdocs Ordering platform for the Rogers account.
  • Managed onshore and offshore developers and coordinated delivery of development and bug fix tasks.
  • Built an auditing tool to ensure that the live system was working as designed and no customer orders were getting stuck. I used Angular, Java, SQL, and CouchDB.
Technologies: Java, Angular, CouchDB, BEA WebLogic Server, Software Design, Agile Software Development

Senior Subject Matter Expert

2009 - 2014
  • Worked for the Amdocs Ordering core team to design, develop, and deploy advanced ordering scenarios allowing customers to swap between different telecom offerings of various clients.
  • Collaborated with the Amdocs Ordering Implementation team to adopt the core product offering to match the various client requirements and customize the product accordingly.
  • Designed, developed, and deployed complex functionality for Vodafone D2 Germany regarding their implementation of Amdocs Ordering.
  • Designed, developed, and deployed a complex functionality for USCC Chicago regarding their implementation of Amdocs Ordering.
Technologies: Java, Software Development, Performance Testing, SQL, Web Servers, BEA WebLogic Server

Subject Matter Expert

2007 - 2009
  • Worked in the core Amdocs Order management system team to build and support the latest product offering.
  • Developed a Java-based application to map Telecom product updates to the Amdocs Order management system in a batched manner.
  • Developed, deployed, and tested a new business functionality for the Amdocs Order management system.
Technologies: Java, Software Development

Twitter GraphQL Endpoint
A Scala-based GraphQL application that allows querying Twitter using a GraphQL endpoint.

This application is designed to showcase the integration of Akka streams and a Sangria GraphQL library to provide streaming GraphQL endpoints.
2004 - 2007

Master's Degree in Computer Science

VJTI Mumbai - Mumbai, India

1999 - 2003

Bachelor's Degree in Chemical Engineering

Indian Institute of Technology, Bombay - Mumbai, India


Amazon Web Services Developer | Associate

Amazon Web Services


Slick, Apigee, Akka Streams


Flink, ELK (Elastic Stack), Amazon EKS, Grafana


Java, SQL, Scala, Kotlin, GraphQL, C#


Angular, Spring, Spring Boot, Akka, Play Framework


CouchDB, HDFS, MongoDB, PostgreSQL


Agile Software Development


Linux, MacOS, VMware Tanzu Application Service (TAS) (Pivotal Cloud Foundry (PCF)), Apache Kafka, Amazon Web Services (AWS), Kubernetes


Software Development, Chemical Engineering, Performance Testing, Web Servers, BEA WebLogic Server, Software Design, Akka HTTP, Cloud, Development, Akka Persistence

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