Senior Developer – Information Technology

Chicago, IL United Airlines


There’s never been a more exciting time to join United Airlines! We’re on a path towards becoming the best airline in the history of aviation. Our shared purpose – Connecting People, Uniting the World – is about more than getting people from one place to another. It also means that as a global company that operates in hundreds of locations around the world with millions of customers and tens of thousands of employees, we have a unique responsibility to uplift and provide opportunities in the places where we work, live and fly, and we can only do that with a truly diverse and inclusive workforce. And we’re growing – in the years ahead, we’ll hire tens of thousands of people across every area of the airline. Our careers include a competitive benefits package aimed at keeping you happy, healthy and well-traveled. From employee-run "Business Resource Group" communities to world-class benefits like parental leave, 401k and privileges like space available travel, United is truly a one-of-a-kind place to work. Are you ready to travel the world?

We believe that inclusion propels innovation and is the foundation of all that we do. United's Digital Technology team spans the globe and is made up of diverse individuals all working together with pioneering 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

United is seeking a primary developer for our passenger simulation application in Chicago, IL. Working closely with our business teams, this role will brainstorm ideas to test new Revenue Management strategies using the passenger simulator. We are interested in someone who knows or is willing to learn concepts of Airline Revenue Management, including passenger forecasting, modeling, and optimization. A key competency is using this knowledge to update the codebase of the passenger simulation application. 

  • Collaborate closely with the various teams and business partners to build and run Revenue Management simulations.
  • Good conceptual understanding of basic mathematical optimization
  • Strong quantitative reasoning abilities
  • Strong capability to translate mathematical concepts into code
  • C++ required and Python recommended
  • Ability to read and understand code written by others
  • Knowledgeable about new technologies (Ex: Gen-Ai, Machine Leaning, Natural Language Processing)
  • Understanding of the value of creating first pass solutions
  • Prioritizes writing clean, readable code
  • Ability to prioritize work independently
  • Eager to ask questions, admit mistakes, and learn new things
  • Willing to challenge existing methods and ideas with better solutions

United Airlines is an equal opportunity employer. United Airlines recruits, employs, trains, compensates, and promotes regardless of race, religion, color, national origin, gender identity, sexual orientation, physical ability, age, veteran status, and other protected status as required by applicable law.


Required Qualifications 

  • Bachelor’s degree in computer science or information systems
  • A minimum of 5 years of experience in software application design, development, installation, and modification.
  • Strong knowledge and experience of .NET Core, C#
  • Hands on experience in building microservice in AWS is must
  • Proficient in the design of RESTful APIs, you understand how CRUD maps to APIs and can stand by critical principles such as HTTP verbs and code.
  • Sound understanding of Message queues/broker like Solace, Kafka, AMQ, SQS and Event driven architecture: Different Patterns with pub/sub, topic, queues, etc.
  • Proficient with NoSQL Database like Mongo Db, Elasticache and understand the core concepts of NoSQL DB
  • Strong understanding of LINQ syntax and ORMs (EF Core preferable)
  • Experienced and hands on understanding of System Design Principals
  • Nice to have – AWS Neptune / any similar Graph Database experience
  • Nice to have experience with AWS – AI based recommendation models
  • Nice to have exposure to OpenTelemetry and / or experience with any telemetry libraries.
  • Strong understanding of source code control tools (Gitlab) and branching model
  • Must have legal authorization to work in the United States for any employer without requiring sponsorship.

Equal Opportunity Employer – Minorities/Women/Veterans/Disabled/LGBT

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