Christopher Nellis

Provide technical guidance, architecture recommendations, and best practices for new features, technical debt remediation planning, and overall development efforts on the customer mobile app team

Collaborate with CyberSecurity teams to disposition CodeQL findings and penetration test findings, setting remediation plans, or flagging false positives as necessary

Partner with Akamai firewall team to configure integrations across multiple teams, collaborating during incidents, evaluating proposed firewall changes, and assisting in analyzing network traffic

Serve as tech lead for the implementation of Auth0 for customer authentication across all Duke Energy customer-facing applications, collaborating with CyberSecurity, legal, and various platform teams

Consult as subject matter expert for additional Auth0 tenants across the enterprise

Participate as a founding member of Software Engineering Council, a cross-functional group focused on authoring, reviewing, and enforcing software engineering standards across the enterprise

Designed, developed, and implemented Auth0 Actions to enhance and secure customer authentication flows according to requirements

Wrote Aurora Postgres database standards across the enterprise including credential rotation, audit logging, and upgrade procedures

Enabled and enforced SSO for Apple's AppStoreConnect platform across Duke Energy

Pioneered usage of ECS and Fargate at the company, becoming the first team to use those technologies

Established patterns and best practices for deploying to ECR

Migrated the customer mobile app's on-prem SQL Server Database to Aurora Postgres with no downtime or data loss using AWS's Database Migration Service

Architected and implemented system to send push notifications (with scheduling functionality), integrating with AWS native services (using lambdas, SQS, Step Functions, DynamoDB), Kafka, and Firebase Cloud Messaging APIs

Designed and implemented IP Lockout and access token management with DynamoDB

Regularly communicated with product owners, non-technical stakeholders, peers, and developers to ensure alignment in technical requirements and overall behavior of the system

Led backend development throughout SAP Billing System consolidation

Mentored new backend developers on the team

Advocated for test-driven development and unit testing across the backend platform

Navigated the migration of runtime environments from Pivotal Cloud Foundry to Nirmata

Developed initial feature set of the customer mobile app

Coordinated deployment across multiple teams for initial customer mobile app release

Instituted coding challenges for hiring processes

Built customer recommendation engine API layer with Spring

Participated on development teams for internal projects

Presented technical solutions to colleges and trainers

Built tool to upload accreditation evidence and track approval status

Managed HTML copy of accreditation report

Created tool to translate addresses into latitude and longitude coordinates using Google Maps API

Wrote PowerShell script to rename multiple files at once