Demo

Full-Stack .NET Developer Lead III

Robert Half
Allentown, PA Temporary
POSTED ON 3/26/2026
AVAILABLE BEFORE 9/25/2028

Position description:


The successful candidate would join a team of 6 - 10 developers working in the customer service space to deliver new omnichannel functionality to both customers and contact center agents. There will be a blend of Twilio Azure and on-premise custom code required among a blend of different technologies. The candidate will be required to possess or learn the accompanying business logic in order to interpret requirements and deliver production-worthy APIs that will serve as the backbone of the omnichannel customer experience.


Daily responsibilities will include attending daily SCRUM completing user story tasks involving design data extraction transformation integration and testing. The candidate will also be required to demo their completed user stories for the business at biweekly demos.


The candidate will need to be skilled at dealing with requirements that may be ambiguous and be able to make progress in a fast-paced environment with little oversight.


General:


Full-stack application development experience - 5 years of experience hands-on writing code hands-on writing code must be the primary duty of most recent position


Strong verbal/written communication facilitation skills. Must be able to help business counterparts in finding optimal solutions and to communicate clearly with peers.


Assertive leadership Agile scrum experience.


Ability to take a requirement document work through any ambiguity and follow through to implementation


Strong analytical and problem-solving abilities.


Ability to understand complex architectures and be comfortable working with multiple teams


Strong work ethic and a team player


Ability to conduct performance analysis capacity management and troubleshoot large scale distributed systems


Enthusiasm toward technology willingness to learn


Required skills:


Web-services 3rd party APIs tools like Postman SoapUI Fiddler


.Net Core Entity Framework Core


WEB API RESTful services


CSS frameworks such as Bootstrap or Angular Material


JavaScript frameworks such as Angular or React


Serverless Azure Compute Services such as App services Azure Functions Logic Apps


Data infrastructure services such as Azure Event Hub Service Bus


Azure Storage such as Blob Storage Data Lake Store Cosmos DB Azure SQL


Azure DevOps Build CI/CD Pipelines


SQL Server must have a solid understanding of SQL tuning indexing query costs


Unit and Integration Testing


Understanding of SOLID design principles secure coding practices




Preferred Skills:


Experience with Twilio / Twilio Flex


Prior public-facing website experience with a utility company


Azure CLI/PowerShell


Oracle


* This is NOT a driving role *

Technology Doesn't Change the World, People Do.®

Robert Half is the world’s first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles.



Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app and get 1-tap apply, notifications of AI-matched jobs, and much more.



All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information.



© 2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking “Apply Now,” you’re agreeing to Robert Half’s Terms of Use.

Hourly Wage Estimation for Full-Stack .NET Developer Lead III in Allentown, PA
$50.00 to $63.00
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