Senior Full Stack Developer - Java and Angular

Achieving our goals starts with supporting yours. Grow your career, access top-tier health and wellness benefits, build lasting connections with your team and our customers, and travel the world using our extensive route network. Come join us to create what’s next. Let’s define tomorrow, together. Description United's Digital Technology team is comprised of many talented individuals all working together with cutting-edge technology to build the best airline in the history of aviation. Our team designs, develops and maintains massively scaling technology solutions brought to life with innovative architectures, data analytics, and digital solutions. Job Overview And Responsibilities The Senior Full Stack Developer will design, build, and support modern capabilities for Crew Pay, a business-critical pay platform. This role combines hands-on application development with cloud-native engineering across AWS, event-driven services, streaming, data processing, and relational databases. The successful candidate will deliver secure, resilient, observable, and maintainable solutions while partnering with product owners, engineers, architects, quality engineering, DevOps, and business stakeholders. Design, develop, test, deploy, and support end-to-end full stack features for the Pilot Pay productBuild cloud-native services using AWS ECS/Fargate, Lambda, SQS, SNS, S3, and RDSDevelop event-driven workflows that consume, process, publish, and replay business events reliablyCreate and maintain Kafka producers, consumers, topics, schemas, error-handling patterns, and operational controlsDevelop and optimize Apache Spark jobs for scalable data transformation and pay-processing workloadsBuild responsive user experiences and secure APIs that provide clear business workflows, validation, and auditabilityEngineer for resilience through idempotency, retry strategies, dead-letter handling, failure recovery, and graceful degradationImplement automated unit, integration, component, regression, and end-to-end tests as part of CI/CD pipelinesImprove production readiness through logging, metrics, tracing, alerting, runbooks, and root-cause analysisParticipate in Agile delivery practices, code reviews, technical design discussions, estimation, and continuous improvementCollaborate with product and business partners to translate complex pay rules into understandable, testable, and maintainable solutionsMentor engineers and raise engineering standards for architecture, code quality, security, performance, and supportability Technical environment Cloud and compute: AWS ECS/Fargate and LambdaMessaging and events: Kafka, SQS, and SNSData and storage: S3, RDS, Aurora, and SQLData processing: Apache Spark and EMRApplication development: Microservices, APIs, and modern web user interfacesEngineering: CI/CD, infrastructure-as-code, automated testing, and observabilityAI-enabled delivery: AI coding assistants, agents, and agentic workflows Success in this role Delivers reliable features that improve pay-processing accuracy, transparency, and operational efficiencyReduces production risk through strong engineering controls, automated validation, and actionable observabilityImproves delivery speed and code quality through reusable patterns, automation, and responsible use of AI-assisted engineeringTakes ownership from design through production support and continuously improves the product and engineering system Qualifications What’s needed to succeed (Minimum Qualifications): Bachelor’s degree in Computer Science, Engineering, Information Systems, or a related field, or equivalent practical experience4+ years of professional software development experience, including ownership of production applicationsStrong back-end development experience using Java, Python, or a comparable enterprise language and frameworkFront-end development experience using a modern JavaScript or TypeScript framework such as React, Angular, or VueHands-on experience with RESTful APIs, microservices, distributed systems, and asynchronous processingPractical experience with AWS ECS/Fargate, Lambda, SQS, SNS, S3, and RDSExperience developing event-driven solutions using Kafka or a comparable streaming platformExperience building, troubleshooting, and optimizing Apache Spark jobsStrong knowledge of SQL, relational data modeling, transactions, and performance tuningExperience with infrastructure-as-code, CI/CD, source control, automated testing, and secure software development practicesDemonstrated ability to diagnose complex production issues across applications, messaging, data, and cloud infrastructure layersClear written and verbal communication skills, with the ability to work effectively across engineering and business teams What will help you propel from the pack (Preferred Qualifications): Experience supporting payroll, crew pay, financial, or other high-accuracy transaction-processing systemsExperience with Amazon MSK, EMR or EMR Serverless, Aurora MySQL, container orchestration, and serverless architecturesKnowledge of event schemas, data lineage, reconciliation, replay controls, and audit-trail designExperience applying observability, performance engineering, cost optimization, and operational automation in AWSExperience using AI-assisted development tools for requirements refinement, code generation, test creation, debugging, refactoring, documentation, or code reviewExperience creating AI agents or agentic workflows using tools or frameworks such as LangChain, LangGraph, Model Context Protocols, retrieval-augmented generation, or similar patternsUnderstanding of responsible AI practices, prompt and tool security, human-in-the-loop controls, evaluation, and production monitoring for AI-enabled solutionsExperience working in a product-centric Agile environment with outcome-based delivery and shared operational ownership The base pay range for this role is $112,480.00 to $146,540.00. The base salary range/hourly rate listed is dependent on job-related, factors such as experience, education, and skills. This position is also eligible for bonus and/or long-term incentive compensation awards. You may be eligible for the following competitive benefits: medical, dental, vision, life, accident & disability, parental leave, employee assistance program, commuter, paid holidays, paid time off, 401(k) and flight privileges. United Airlines is an Equal Opportunity Employer. We recruit, employ, train, compensate, and promote without regard to race, color, religion, national origin, gender identity, sexual orientation, disability, age, veteran status, or any other protected category under applicable law. We provide reasonable accommodations for applicants and employees with disabilities. To request an accommodation, contact JobAccommodations@united.com