Senior Software Engineer

JOB SUMMARY

ST Engineering Commercial Aerospace is seeking an experienced Senior Full-Stack Software Engineer with strong expertise in .NET Core, PostgreSQL, SQL Server, and working knowledge of AI agent development to join our team.

The successful candidate will be responsible for designing, developing, enhancing, and deploying high-quality, scalable web applications that support business operations and digital transformation initiatives.

The ideal candidate is well-versed in modern software development practices, stays current with emerging technologies, and demonstrates strong problem-solving capabilities with a passion for delivering robust and maintainable solutions.

RESPONSIBILITIES

• Design, develop, test, and deploy full-stack web applications using .NET Core and modern web technologies
• Maintain and enhance existing RPA solutions and enterprise applications
• Implement change requests and enhancements for live production systems
• Collaborate with stakeholders to gather requirements and translate them into scalable end-to-end technical solutions
• Evaluate new tools, frameworks, and technologies to improve system performance and development efficiency
• Ensure adherence to best practices in coding, architecture, and security
• Write and maintain unit, integration, and UI tests to ensure software quality and reliability
• Troubleshoot, debug, and optimize application performance
• Work closely with cross-functional teams to continuously improve application functionality and user experience
• Stay updated with emerging trends in web development, AI, and software engineering
• Support integrations with external systems via REST APIs

REQUIREMENTS

• Minimum 5 years of hands-on experience in software development
• Proven experience designing, developing, and configuring .NET Core applications to meet business requirements
• Strong experience building user interfaces using standard web technologies
• Experience designing and developing RESTful APIs using .NET (Python experience is an advantage)
• Experience supporting integrations with external systems via REST APIs
• Strong proficiency in C#; knowledge of Python is a plus
• Solid experience with relational databases such as SQL Server and PostgreSQL
• Experience in web application development using Blazor
• Experience in web application development using DevExpress
• Proficient in source control management using Git
• Strong analytical thinking and problem-solving skills
• Ability to work effectively both independently and in a team environment
• Ability to interpret and execute based on technical specifications and architecture plans
• At least 5 years of experience as a Software Developer or Development Lead, with participation in at least one full Software Development Lifecycle (SDLC)
• Knowledge of AWS or AI agent development is an added advantage

Work Location: 600 West Camp Road

ST Engineering is a global technology, defence and engineering group with a diverse portfolio of businesses across the aerospace, smart city, defence and public security segments. The Group harnesses technology and innovation to solve real-world problems, enabling a more secure and sustainable world. Headquartered in Singapore, it has operations spanning Asia, Europe, the Middle East and the U.S., serving customers in more than 100 countries. ST Engineering reported revenue of over $12b in 2025 and ranks among the largest companies listed on the Singapore Exchange. It is a component stock of MSCI Singapore, FTSE Straits Times Index and Dow Jones Best-in-Class Asia Pacific Index.

About Commercial Aerospace

ST Engineering's Commercial Aerospace business is a world-class Original Equipment Manufacturer (OEM) and Maintenance, Repair and Overhaul (MRO) service provider with proven solutions for practically every stage of an aircraft life cycle. With 50 years of reputable track record in aviation, backed by a highly experienced team of engineers and technicians across facilities in Asia Pacific, the U.S. and Europe, we know what it takes to keep the world flying safely.