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Senior software developer

Letterkenny
SITA
Software developer
€80,000 - €100,000 a year
Posted: 29 July
Offer description

Overview

WELCOME TO SITA

We're the team that keeps airports moving, airlines flying smoothly, and borders open. Our tech and communication innovations are the secret behind the success of the world’s air travel industry.

You'll find us at 95% of international hubs. We partner closely with over 2,500 transportation and government clients, each with their own unique needs and challenges. Our goal is to find fresh solutions and cutting-edge tech to make their operations run like clockwork. Want to be a part of something big?

Are you ready to love your job? The adventure begins right here, with you, at SITA.

About The Role & Team

As a Senior C++/C Developer you will work on a large-scale, mission-critical middleware travel application (~200,000 lines of code). This platform serves as a bridge between messaging systems that typically cannot communicate directly — including GDS systems (Amadeus, Sabre, Apollo, Galileo), messaging platforms (MATIP A/B, MQ, RabbitMQ), file transports, and custom airline/travel protocols (IATA Type B, HTH, ADH, NBytes).

The application is primarily written in C using object-oriented patterns (“C with Classes”), with some components written in Java. We are exploring a long-term modernization effort to transition the platform to modern C++.

What You’ll Do

* Maintain and enhance a complex C-based integration platform.
* Investigate and resolve issues in systems that rely on diverse communication protocols (e.g., MQ, MATIP, FTP, etc.).
* Contribute to system design and architecture discussions, particularly around modularization, scalability, and observability.
* Collaborate with developers, product managers, and stakeholders to deliver high-reliability features and fixes.
* Help build internal knowledge by documenting system behaviors, edge cases, and refactored components.
* Potentially lead the gradual refactoring and modernization of legacy code to Modern C++.


Qualifications

ABOUT YOUR SKILLS

* 7+ years of professional software development experience, with at least 5 years in modern C++ (C++11 or newer), C with Classes, or C combined with a strong understanding of object-oriented programming principles.
* Experience with end-to-end ownership of features or components in complex, interconnected systems (messaging-heavy or travel/aviation environments are a plus).
* Strong working knowledge of C, including maintenance of legacy codebases.
* Working knowledge of Java, especially for systems integration.
* Experience with Kubernetes.
* Familiarity with both Linux and Windows.
* Familiarity with Git or similar version control systems.
* Familiarity with Azure DevOps (ADO) and Agile development methodologies.
* Awareness of or experience with Security by Design principles.


What We Offer

We’re all about diversity. We operate in 200 countries and speak 60 different languages and cultures. We’re really proud of our inclusive environment. Our offices are comfortable and fun places to work, and we make sure you get to work from home too. Find out what it's like to join our team and take a step closer to your best life ever.

Flex Week: Work from home up to 2 days/week (depending on your team’s needs)

Flex Day: Make your workday suit your life and plans.

Flex Location: Take up to 30 days a year to work from any location in the world.

Employee Wellbeing: We’ve got you covered with our Employee Assistance Program (EAP), for you and your dependents 24/7, 365 days/year. We also offer Champion Health - a personalized platform that supports a range of wellbeing needs.

Professional Development: Level up your skills with our training platforms, including LinkedIn Learning!

Competitive Benefits: Competitive benefits that make sense with both your local market and employment status.

SITA is an Equal Opportunity Employer. We value a diverse workforce. In support of our Employment Equity Program, we encourage women, aboriginal people, members of visible minorities, and/or persons with disabilities to apply and self-identify in the application process. #J-18808-Ljbffr

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