Ian Rae, Developer in Ottawa, ON, Canada
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Ian Rae

Verified Expert  in Engineering

Full-stack Developer

Ottawa, ON, Canada
Toptal Member Since
May 14, 2021

Ian is a software engineer, focusing primarily on Java, eCommerce, and web development. With 20+ years of experience, he excels at solving problems in data, performance, and complex business requirements. He has developed a wide range of solutions, including database fixes, online booking and payments, web security, fraud detection and prevention, and eLearning and learning management systems. Ian delivers results by mastering new technologies quickly and working as an effective team member.


Java 15, Azure, Kubernetes, Apache Kafka, Redis, Docker, Jenkins, Gradle...
Java 8, Spring Boot, PostgreSQL, Docker, Amazon Web Services (AWS), Stripe API...
Java, Oracle SQL, SAP Hybris, Spring Boot, Bitbucket, APIs, SonarQube...




Preferred Environment

Git, Visual Studio Code (VS Code), PostgreSQL, Windows, Amazon Web Services (AWS), IntelliJ IDEA

The most amazing...

...thing I've done was rewriting a failed telecommunications product, using a state-machine architecture. It was deployed in several hundred call centers.

Work Experience

Senior Core Java API Developer

2021 - 2022
  • Developed a parcel manifesting service that applied carrier-specific logic to parcels.
  • Led the core team of developers with a daily standup meeting, assigned tickets, and answered questions.
  • Developed an invoicing microservice that integrated our parcel system with Great Plains software.
  • Developed a bulk shipment service that took a CSV uploaded by the customer and created parcels, validated them, and sent results back to the customer in an email.
Technologies: Java 15, Azure, Kubernetes, Apache Kafka, Redis, Docker, Jenkins, Gradle, Spring, Azure Kubernetes Service (AKS)

Senior Full-stack Developer

2020 - 2021
  • Built a CI/CD pipeline using GitHub Actions, Docker Hub, and AWS Elastic Beanstalk.
  • Implemented online payments for veterinarian appointments using Stripe API.
  • Redesigned the appointment booking code to work with several veterinarian portal products using their web APIs.
Technologies: Java 8, Spring Boot, PostgreSQL, Docker, Amazon Web Services (AWS), Stripe API, Jira, Java, CI/CD Pipelines, GitHub, Docker Hub, AWS Elastic Beanstalk, Stripe Payments, APIs, Full-stack, HTML, JavaScript

Senior Software Engineer

2015 - 2019
  • Built an order-processing pipeline for payment validation, inventory management, and delivery schedules.
  • Implemented fraud detection using Forter API based on front-end and back-end data collection on shopping characteristics.
  • Solved a production deadlock issue with Oracle Database over four weeks of troubleshooting.
  • Performed a security review of production code, using SonarQube, and fixed all the identified security issues.
  • Integrated the Worldpay payment gateway into a large multicountry eCommerce site.
Technologies: Java, Oracle SQL, SAP Hybris, Spring Boot, Bitbucket, APIs, SonarQube, Web Security, Worldpay, eCommerce, Cloudflare, HTML, JavaScript, Full-stack

Senior Software Engineer

2010 - 2015
School Specialty
  • Designed a back-end API for the iOS and Android mobile versions of the company's eLearning products.
  • Redesigned the front-end Flash AS3 code and the back-end Java code to increase the reliability and performance of eLearning products. This code was used in five new products.
  • Provided guidance during the team transition from semi-annual releases to the Scrum Agile development process with monthly releases.
  • Ported a premise-based learning management system to a cloud-based system on our own and Amazon EC2 servers.
Technologies: Java, MySQL, JBoss, Amazon EC2, AS3, Flash, APIs, E-learning, Front-end, Back-end, Scrum, Agile, Learning Management Systems (LMS), Amazon Web Services (AWS), HTML

Delia Language

Delia is an experimental data language that I created as an open-source project. It aims to replace a typical ORM, such as Hibernate, with a compiler that represents SQL in a simple, high-level syntax.


FieldCopy is an open-source object conversion library for Java that aims for performance and simplicity. It is used to convert entity objects to and from data transfer objects (DTOs) exposed to the front-end code. FieldCopy is based on Apache BeanUtils.
1976 - 1980

Bachelor of Science Degree in Geophysical Engineering

Queen's University - Kingston, ON, CA


Certified Scrum Master



Stripe API


Git, SAP Hybris, Azure Kubernetes Service (AKS), Jira, Bitbucket, Flash, GitHub, Apache Maven, Amazon Simple Email Service (SES), Docker Hub, SonarQube, Jenkins, Gradle, IntelliJ IDEA


Spring Boot, Spring, OAuth 2, Jakarta Server Pages (JSP)


Agile, Compiler Design, Scrum


Java 8, Java, AS3, SQL, Java 15, HTML, JavaScript


Eclipse, Windows, Linux, Amazon Web Services (AWS), Docker, JBoss, Amazon EC2, AWS Lambda, AWS Elastic Beanstalk, Azure, Kubernetes, Apache Kafka, Visual Studio Code (VS Code)


PostgreSQL, Oracle SQL, MySQL, Amazon S3 (AWS S3), Redis

Industry Expertise



Physics, Calculus, Statistics, Certified ScrumMaster (CSM), Bootstrap 4, Amazon RDS, CI/CD Pipelines, Stripe Payments, APIs, Web Security, Worldpay, eCommerce, Front-end, Back-end, Learning Management Systems (LMS), Full-stack, Cloudflare

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