Software Engineer - .NET

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.

What Your Impact Will Be

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.

Responsibilities

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; 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.; 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.; 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.; Ensure adherence to SDLC, ITIL, and change management processes.; Follow security, audit, and compliance requirements.; Maintain proper version control and documentation standards.

Requirements

Required Skills & Qualifications; 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; Degree in computer science, Information Technology, or related field (or equivalent experience); Min 3 years of experience in .NET/web application development or support area; Understanding of manufacturing back office, shop floor operation, and trading companies’ operation is value added; Eager to work on-call or non-standard hours (Asia time zone) whenever necessary; Eager to travel occasionally as required