SMP Software Engineer

American Express Global Business Travel; Greater London; On-site; GBP 55,000 - 75,000; Full time

Job summary

A leading travel management company in London is seeking an SMP Software Engineer to join their international team. This role focuses on developing their travel platform, ensuring a scalable and optimized product experience. The successful candidate will have confirmed experience in C# development and a passion for software craftsmanship. Join a team that values inclusivity and flexibility with perks including health benefits, travel discounts, and opportunities for personal development.

Benefits

Health and welfare insurance plans

Retirement programs

Parental leave

Travel perks

Access to over 20,000 courses

Qualifications

• Confirmed experience in C# development.
• Passion for Software Craftsmanship with focus on Clean Code.
• Knowledge of Infrastructure as Code and CI/CD practices.

Responsibilities

• Participate in the evolution and development of the REST API.
• Contribute to the extension and design of the platform.
• Develop new features and modules.

Skills

C#

DevOps knowledge

Fluent English

Tools

.NET

ASP.NET Core Web API

AWS

Redis

RabbitMQ

PostgreSQL

DynamoDB

CloudFormation

OpenSearch/ELK

Job description

SMP Software Engineer page is loaded## SMP Software Engineerlocations: London, United Kingdomtime type: Full timeposted on: Posted 6 Days Agotime left to apply: End Date: December 16, 2025 (19 hours left to apply)job requisition id: J-72565Amex 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.We are developing at Amex GBT a travel platform called SMP (Supply MarketPlace).The aims of this project are to manage all Amex GBT supply thanks to this platform and provide the best experience to users thanks to a powerful, scalable, and optimized product.The team is international, based mainly in Paris and split into several SCRUM teams in a micro-services architecture.**What You’ll Do on a Typical Day*** Participate in the evolution and development of the REST API.* Contribute to the extension and design of the platform.* Develop new features, new modules* Participate to DevOps (automated CI/CD, testing, monitoring, observability)**What We’re Looking For*** Confirmed experience in C# development.* DevOps knowledge is an asset.* Passion, Software Craftmanship, Culture of Excellence/Clean Code, TDD.* English: fluent (multicultural and international team).**What Technical Skills You’ll Develop** * C#* .NET, ASP.NET Core Web API* Containers, Lambda* Redis, RabbitMQ, Aurora / PostgreSQL, DynamoDB* Infrastructure as Code (CloudFormation)* CI/CD,* High Availability* Scalable & performant platform* OpenSearch / ELK (Elasticsearch, Logstash, Kibana)* AWS#GBTJobs**Location**London, United Kingdom**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.* **Develop the skills you want** when the time is right for you, with access to over 20,000 courses on our learning platform, leadership courses, and new job openings available to internal candidates first.* **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!All applicants will receive equal consideration for employment without regard to age, sex, gender (and characteristics related to sex and gender), pregnancy (and related medical conditions), race, color, citizenship, religion, disability, or any other class or characteristic protected by law.for Additional Disclosures in Accordance with the LA County Fair Chance Ordinance.Furthermore, we are committed to providing reasonable accommodation to qualified individuals with disabilities. Please let your recruiter know if you need an accommodation at any point during the hiring process. For details regarding how we protect your data, please consult the .If you’re passionate about our mission and believe you’d be a phenomenal addition to our team, don’t worry about “checking every box;" please apply anyway. You may be exactly the person we’re looking for!