Overview 

United Airlines Technical Operations is modernizing a portfolio of mission-critical systems that support aircraft maintenance, supply chain operations, and engineering workflows across our global fleet. 

We are looking for a Senior Software Engineer / Technical Lead who is passionate about building modern cloud-native applications while helping guide the transformation of legacy enterprise platforms into scalable, secure, and observable systems on AWS. 

This role is ideal for engineers who enjoy solving complex problems across distributed systems, cloud platforms, and modernization initiatives, while also mentoring teams and driving engineering excellence. 

You will help shape the technical direction of applications that support real-world operational workflows used by technicians, planners, engineers, and maintenance teams across United’s Technical Operations organization. 

What You’ll Do 

• Design and deliver cloud-native applications using modern architectures and scalable platform patterns 

• Lead development and architectural improvements across systems supporting supply chain operations, engine and component repair shops, and inventory management platforms 

• Drive modernization initiatives that transform legacy enterprise systems into scalable cloud-based solutions 

• Establish and promote engineering standards around secure coding, automated testing, CI/CD pipelines, and observability 

• Build and maintain containerized workloads, APIs, and integration services across enterprise platforms 

• Collaborate with architects, product teams, and infrastructure partners to deliver reliable and scalable solutions 

• Integrate systems using APIs, messaging platforms, and event-driven architectures 

• Mentor engineers and contribute to technical design decisions across the development team 

• Improve system reliability, performance, and monitoring through modern observability practices 

• Partner with security and platform teams to proactively identify and resolve vulnerabilities 
   

Technologies You’ll Work With 

Backend 

• .NET 6+ / C# 

• RESTful APIs 

• SQL/Postgres or similar relational databases 

Frontend 

• React 

• Next.js 

• Modern web frameworks 

Cloud & Infrastructure 

• AWS 

• Containerized workloads 

• ECS / Lambda (preferred) 

Engineering Platform 

• GitHub & GitHub Copilot 

• CI/CD pipelines 

• DevOps workflows 

• Dynatrace monitoring 

• WIZ and Veracode security scanning 

What We’re Looking For 

• Strong hands-on development experience using .NET / C# 

• Experience building modern web applications using React or Next.js 

• Experience building containerized applications and API-based services 

• Strong knowledge of SQL and related relational databases 

• Experience with GitHub workflows and source control best practices 

• Familiarity with CI/CD pipelines and DevOps practices 

• Understanding of secure coding practices and vulnerability remediation 

• Experience designing or contributing to scalable system architectures 

• Ability to mentor developers and participate in technical leadership discussions

Nice to Have 

• Experience working with AWS services such as Lambda, ECS, or serverless architectures 

• Exposure to Java-based enterprise systems or legacy modernization initiatives 

• Experience with API gateway platforms such as Kong 

• Experience implementing event-driven architectures 

• Experience using AI-assisted development tools (GitHub Copilot or similar)