Fullstack Senior Engineer

Amex GBT is a place where colleagues find inspiration in travel as a force for good and - through their work - can make an impact on our industry. We’re here to help our colleagues achieve success and offer an inclusive and collaborative culture where your voice is valued.
Amex GBT Egencia is one of the world's leading corporate travel management companies and is part of American Express Global Business Travel. We work with clients to ensure their employees have a phenomenal experience when they travel for work. We also help companies understand their business travel expenses and fulfill their duty of care. We seek an e xperienced Fullstack Senior Engineer to join our team of experienced software developers.
What You’ll Do on a Typical Day
Inspire and mentor engineers to design software that is maintainable, testable, and observable, demonstrating strong technical leadership.
Collaborate effectively with peers across regions and organizations, showcasing excellent communication, teamwork, and teaching skills.
Solve complex engineering challenges with autonomy, analytical thinking, and problem-solving skills, focusing on integration, communication, and interoperability across systems.
Take a holistic systems approach to analyze use cases, design, implement, and maintain integrated solutions using standard engineering methodologies.
Research and recommend frameworks and architectural/code design patterns to improve systems.
Lead and participate in design and code reviews to ensure high-quality deliverables.
Share domain and industry knowledge across teams to enhance engineering practices.
Advocate for operational excellence by ensuring system resilience, scalability, testing, monitoring, and alerting.
Provide updates on high-visibility projects to leadership.
Partner with Product teams to refine and clarify business requirements.
Proactively seek opportunities to improve customer experiences.
What We’re Looking For
12+ years of development experience, including at least 5 years as an experienced Senior Development Engineer.
Bachelor's or Master’s in Computer Science or a related technical field, or equivalent professional experience.
Strong expertise in front-end web technologies, including JavaScript and React.
Deep understanding of web platform technologies, including REST and SOAP web service protocols.
Experience with cloud-based infrastructure, deployment pipelines, and multiple database/data store technologies.
Ability to understand complex systems and explain technical decisions to both technical and non-technical audiences.
Proven experience leading complex projects and guiding integrations across teams.
Skilled in mentoring Senior Software Engineers and improving existing systems using engineering principles.
Excellent problem-solving skills to address challenges effectively.
Strong communication skills, with the ability to present complex information clearly and concisely.
Location Issy-les-Moulineaux, France
The #TeamGBT Experience
**Work and life**: Find your happy medium at Amex GBT.
Flexible benefits are tailored to each country and start the day you do. These include health and welfare insurance plans, retirement programs, parental leave, adoption assistance, and wellbeing resources to support you and your immediate family.
**Travel perks**: get a choice of deals each week from major travel providers on everything from flights to hotels to cruises and car rentals.
We strive to champion Inclusion in every aspect of our business at Amex GBT. You can connect with colleagues through our global INclusion Groups, centered around common identities or initiatives, to discuss challenges, obstacles, achievements, and drive company awareness and action.
And much more
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