What are the responsibilities and job description for the Senior Developer - Full Stack .Net/React/AWS Information Technology position at United Airlines?
Description
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 Full Stack Developer / Technical Lead who is passionate about building modern cloud-native applications while helping guide the transformation of legacy enterprise platforms into scalable, secure, observable, and highly reliable 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. As part of United's evolving Product Engineering model, this role is expected to contribute across the full software delivery lifecycle including solution design, development, testing, deployment, production support, and operational excellence. Candidates should be comfortable leveraging AI-assisted development tools and embracing end-to-end ownership of the products they support.
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, observability, and operational reliability.
Build and maintain containerized workloads, APIs, and integration services across enterprise platforms
Collaborate with architects, product teams, UX partners, and infrastructure teams to deliver reliable, scalable, and user-focused 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
Take ownership of application health, availability, performance, and supportability by applying Site Reliability Engineering (SRE) principles and proactive operational monitoring
Leverage AI-assisted development tools to accelerate delivery, improve code quality, and enhance engineering productivity across the product lifecycle
Contribute across development, testing, release, and production support activities while helping drive a culture of end-to-end ownership within the product pod
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, and AI-assisted development tools
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 full-stack web applications using React, Next.js, or similar modern frameworks
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, DevOps practices, and operational support responsibilities
Understanding of secure coding practices and vulnerability remediation
Experience designing or contributing to scalable system architectures
Ability to mentor developers, lead technical discussions, and promote engineering ownership across the product lifecycl
Experience supporting production systems through monitoring, troubleshooting, performance tuning, and incident resolution
Qualifications
Minimum Qualifications
Bachelor's degree in Computer Science, Engineering, or related field
4 years of software engineering experience building enterprise applications
Strong experience working in modern development environments using cloud platforms, DevOps practices, and modern frameworks
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, Microsoft Copilot, or similar tools)
Exposure to Site Reliability Engineering (SRE), observability platforms, and application monitoring best practices
Preferred Qualifications
AWS certification or deep AWS platform experience
Experience working within Agile or SAFe development frameworks
Experience contributing to enterprise modernization or platform transformation initiatives
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 Full Stack Developer / Technical Lead who is passionate about building modern cloud-native applications while helping guide the transformation of legacy enterprise platforms into scalable, secure, observable, and highly reliable 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. As part of United's evolving Product Engineering model, this role is expected to contribute across the full software delivery lifecycle including solution design, development, testing, deployment, production support, and operational excellence. Candidates should be comfortable leveraging AI-assisted development tools and embracing end-to-end ownership of the products they support.
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, observability, and operational reliability.
Build and maintain containerized workloads, APIs, and integration services across enterprise platforms
Collaborate with architects, product teams, UX partners, and infrastructure teams to deliver reliable, scalable, and user-focused 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
Take ownership of application health, availability, performance, and supportability by applying Site Reliability Engineering (SRE) principles and proactive operational monitoring
Leverage AI-assisted development tools to accelerate delivery, improve code quality, and enhance engineering productivity across the product lifecycle
Contribute across development, testing, release, and production support activities while helping drive a culture of end-to-end ownership within the product pod
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, and AI-assisted development tools
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 full-stack web applications using React, Next.js, or similar modern frameworks
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, DevOps practices, and operational support responsibilities
Understanding of secure coding practices and vulnerability remediation
Experience designing or contributing to scalable system architectures
Ability to mentor developers, lead technical discussions, and promote engineering ownership across the product lifecycl
Experience supporting production systems through monitoring, troubleshooting, performance tuning, and incident resolution
Qualifications
Minimum Qualifications
Bachelor's degree in Computer Science, Engineering, or related field
4 years of software engineering experience building enterprise applications
Strong experience working in modern development environments using cloud platforms, DevOps practices, and modern frameworks
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, Microsoft Copilot, or similar tools)
Exposure to Site Reliability Engineering (SRE), observability platforms, and application monitoring best practices
Preferred Qualifications
AWS certification or deep AWS platform experience
Experience working within Agile or SAFe development frameworks
Experience contributing to enterprise modernization or platform transformation initiatives