CREATIVITY IS OUR SUPERPOWER. It’s our heritage and it’s also our future. Because we don’t just make toys. We create innovative products and experiences that inspire fans, entertain audiences and develop children through play. Mattel is at its best when every member of our team feels respected, included, and heard—when everyone can show up as themselves and do their best work every day. We value and share an infinite range of ideas and voices that evolve and broaden our perspectives with a reach that extends into all our brands, partners, and suppliers.
Job Title : .NET Program Developer
Staff Category : Developer and support analyst - D
Department : Information Technology
Reports To : Operation: MIMICS Competency Manager
Admin: MTIC Production Support Manager
Supervision Exercised : N/A
Authority for Approval : N/A
The .NET program developer is responsible for analyzing, designing, and developing business applications built on the .NET platform. This role ensures requirements are effectively translated into system solutions. The developer will work on system enhancements, production issues, and continuous improvements to ensure applications meet business needs, performance expectations, and compliance standards, and will take over the existing application developed by the intern.
Key Responsibilities
Application Development support
Work closely with the .NET System Analyst
Review technical designs and ensure alignment with requirements
Program coding based on the requirement, testing, and deployment phases.
Assist in code reviews and solution validation when necessary
Testing & Quality Assurance
Define test scenarios, test cases, and acceptance criteria based on requirements.
Support SIT (System integration test) and UAT (User acceptance testing)
Validate functionality and ensure it meets business expectations.
Coordinate defect tracking and resolution with development teams.
Production support and enhancement
Provide L2/L3 production support for .NET applications.
Analyze and troubleshoot system issues, perform root cause analysis (RCA).
Support application releases, patches, and enhancements.
Work proactively to identify improvement opportunities and reduce recurring issues.
Integration and Data Management
Design and support system integrations using REST APIs, Web Services, and messaging systems.
Work with SQL Server databases for data analysis, reporting, and troubleshooting.
Ensure data consistency, accuracy, and integrity across systems.
Governance, Compliance & Best Practices
Ensure adherence to SDLC, ITIL, and change management processes.
Follow security, audit, and compliance requirements.
Maintain proper version control and documentation standards.
Required Skills & Qualifications
Technical Skills
Strong experience in .NET / C#, ASP.NET, .NET Core, Java, VB, and web services.
Hands-on experience with IIS, Windows Services, and application configuration.
Strong SQL skills with SQL Server (querying, performance tuning, troubleshooting).
Experience with logging and monitoring tools.
Understanding of production environments, incident management, and ITIL concepts.
Experience with ITIL, ServiceNow, or any ticketing system process
Experience with Azure or AWS cloud environments.
Experience supporting high-volume, business-critical applications, e.g., EDI
Analytical & Functional Skills
Strong business analysis and problem-solving skills
Ability to convert business needs into technical requirements
Soft Skills
Strong analytical and problem-solving skills.
Ability to work under pressure in high-availability production environments (supporting manufacturing plants with an expected shorter resolution time)
Strong communication and presentation skills with end users and business stakeholders
Strong attention to detail and documentation discipline.
Attention to detail and structured thinking
Education & Experience

We empower generations to explore the wonder of childhood and reach their full potential.
We treat play as if the future depends on it — because it does. Play is our language, and we speak to our consumers authentically by representing the world as they see and imagine it.
Mattel is a leading global toy and family entertainment company and owner of one of the most iconic brand portfolios in the world. We engage consumers and fans through our franchise brands, including Barbie, Hot Wheels, Fisher-Price, American Girl, Thomas & Friends, UNO, Masters of the Universe, Matchbox, Monster High, Polly Pocket, and Barney, as well as other popular properties that we own or license in partnership with global entertainment companies.
Our offerings include toys, content, consumer products, digital and live experiences. Our products are sold in collaboration with the world’s leading retail and ecommerce companies.
Mattel is recognized as a Great Place to Work™ and as one of Fast Company’s Best Workplaces for Innovators.