Jeff Lajoie
Staff Software Engineer at Realtor.com
Somerville, Massachusetts, United States
Summary
🤩
Rockstar🎓
Top SchoolJeff Lajoie is a Staff Software Engineer with nine years of experience building and scaling backend systems from startup to acquisition. He specializes in serverless AWS architectures (CDK, Lambda, DynamoDB, Kinesis, SQS, API Gateway, OpenSearch) and has shipped GraphQL and REST APIs, data pipelines, and entitlement platforms that unlocked new pricing and enterprise features. As one of two backend engineers at Zenlist he owned core integrations, analytics, and agile process, helping grow the product nationwide and drive its acquisition by Realtor.com. His polyglot background spans Rust, Python, Node.js, Scala, Ruby, and Java, and he brings pragmatic full-stack sensibilities from earlier edX contributions (notably UX-facing courseware date features) to large-scale backend design. Based in Somerville, MA, he combines hands-on implementation with product-minded systems thinking and a knack for turning non-standard data sources into new business capabilities.
9 years of coding experience
12 years of employment as a software developer
Bachelor of Science (B.S.) Computer Science, Bachelor of Science (B.S.) Computer Science at Rochester Institute of Technology
English
Stackoverflow
1,725reputation
122kreached
42answers
4questions
playframework
top-5%
Github Skills (21)
data-service10
python10
django10
webservice10
courses-resource10
backend10
salesforce9
playframework9
html9
javascript8
testing8
api7
apidoc7
mechanize6
swing6
Programming languages (9)
Github contributions (5)
openedx/course-discovery
Jun 2019 - Jun 2020
Service providing access to consolidated course and program metadata
Role in this project:
Back-end Developer
Back-end DeveloperContributions:4 reviews, 14 commits, 168 PRs in 1 year
Contributions summary:Jeff primarily contributed by reverting code changes, indicating a role in maintaining the stability and integrity of the course discovery service. The commits addressed issues related to Salesforce integration, including configuration models and dependencies on parent IDs. Further contributions included applying patches and modifying course metadata applications, indicating a focus on backend functionalities and data models, along with fixing flaky tests and upgrading JS packages to keep the system up to date.
data-managementconsolidateditilbackend-servicemetadata
openedx/edx-platform
Jan 2017 - Dec 2020
The Open edX LMS & Studio, powering education sites around the world!
Role in this project:Back-end Developer
Back-end DeveloperContributions:8 reviews, 37 commits, 101 PRs in 3 years 11 months
Contributions summary:Jeff primarily contributed to the Open edX platform by implementing features related to the "dates" tab in courseware, including the addition of a new dates dashboard view. These changes involved modifications to Django templates, views, and tests, indicating a focus on enhancing the user experience and functionality of the course information display. Furthermore, the user was involved in enabling the dates tab for self-paced courses and integrating user-specific time zone settings to improve the presentation of dates. The user also implemented the 'Up next' banner to course home.
edxlmssitesbackend-serviceopen-edx
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.