Senior Full Stack Blockchain Developer Jobs in Spring, TX

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