Senior Software Engineer I

checkout.com
Paris

Company Description

We’re Checkout.com . You might not know our name, but companies like eBay, Spotify, Klarna, Uber, and Sony do, because we’re behind many of the digital experiences you use every day.


We are where the world checks out, enabling over 10 billion transactions yearly for more than one billion global shoppers.

Whether you want to book a holiday, order food, renew a subscription, or check out online, there’s a good chance our tech powers the payments behind the scenes. Our platform helps the most ambitious businesses deliver effortless digital experiences, at scale.

If you want to do career-defining work, you’ve come to the right place. We move fast, think globally, and believe great teams are built by hiring exceptional people with conviction, curiosity, and the desire to make an impact.

With 20 offices across six continents and London as our HQ, we’re shaping the future of fintech – and we’re just getting started.

Global payments are complex and ever-evolving. At Checkout our software engineers develop the next-generation payments technologies that enable our Merchants to boost their acceptance rates, cut processing costs, fight fraud, and create cutting edge technology that enables extraordinary customer experiences.

We're looking for Senior Software engineers who bring fresh ideas, have a curious nature and are passionate about working in an Engineering environment which focuses on building products to achieve the company's strategic goals. You’ll get to work with teams from across Checkout.com ’s portfolio of products and services who all have a real customer first philosophy.

As a Senior Software engineer, you will lead and drive specific projects critical to Checkout's needs with opportunities to switch teams and projects as you and our fast-paced business grow and evolve. We need our engineers to be versatile, display exceptional leadership qualities and be enthusiastic to take on new problems across the full-stack as we continue to push technology forward. With your technical expertise you will lead project priorities, deadlines, and deliverables. You will design, develop, test, deploy, maintain, and enhance software solutions.

What are we looking for:

  • Bachelor's or Master's degree in Computer Science, Engineering, or related field

  • Proficiency in C# .NET, Java, or Go, with a strong understanding of software development principles in either a backend or full stack environment.

  • Great communication skills and ability to interact effectively with a wide range of stakeholders

  • Experience working in agile environments and delivering high-quality code within tight deadlines

  • Excellent problem-solving skills and the ability to work independently as well as part of a team

  • Someone who is AI proficient or AI curious, you will be hungry to embrace what the latest technology has to offer to enhance yours and your teams productivity

  • Payments or financial knowledge is a plus, but not a necessity

How you’ll make an impact

  • Be part of, and collaborate with, cross-functional teams including product management, across a large engineering community.

  • Define and design loosely coupled, scalable systems in a wider microservices using industry best practices.

  • Stay up-to-date, use, and spread knowledge of the latest technologies used by Checkout.

  • Write clean, maintainable, extendable and testable code on some of Checkout’s most impactful systems.

  • Build, own and operate your systems to the highest levels of resilience and service.

  • Mentor junior team members and assist in their technical development

Additional Information

Bring all of you to work

We create the conditions for high performers to thrive, through real ownership, fewer blockers, and work that makes a difference from day one.

Here, you’ll move fast, take on meaningful challenges, and be recognized for the impact you deliver. It’s a place where ambition gets met with opportunity, and where your growth is in your hands.

We work as one team, and we back each other to succeed. So whatever your background or identity, if you’re ready to grow and make a difference, you’ll be right at home here.

It’s important we set you up for success and make our process as accessible as possible. So let us know in your application, or tell your recruiter directly, if you need anything to make your experience or working environment more comfortable.

Life at Checkout.com

We understand that work is just one part of your life. Our hybrid working model offers flexibility, with three days per week in the office to support collaboration and connection.

Curious about what it’s like to be part of our team? Visit our Careers Page to learn more about our culture, open roles, and what drives us.

For a closer look at daily life at Checkout.com , follow us on LinkedIn and Instagram

Publié le 2026-07-18

Emplois Recommandés

Assistant / Assistante de vie dépendance H/F

DOMIDOM PARIS SUD-OUEST
Paris 13e

Description de l'offre: Votre mission, si vous l’acceptez : Accompagner nos bénéficiaires dans leur quotidien et faciliter leur maintien à domicile ! Comment ? En les soutenant dans les gestes…

Voir les Détails
Publié le 2026-07-06

Commercial CHR H/F - Rouquette boisson

Groupe Rouquette
Paris

La société Rouquette est positionnée en acteur majeur de la distribution de boissons et de produits d’épicerie sur le marché parisien, picard et normand dans l’univers des Cafés, Hôtels et Restaurant…

Voir les Détails
Publié le 2026-07-18

Account Manager (Paris)

Fresha
Paris

The AI-powered OS for beauty, wellness and self-care About Fresha Fresha is the AI-powered operating system for the global beauty, wellness and self-care industry, connecting and powering eve…

Voir les Détails
Publié le 2026-07-01

Assistant administratif et financier (H/F)

SIAAP (Service Public de l'Assainissement Francilien)
Paris 12e

A propos de SIAAP (Service Public de l'Assainissement Francilien): Service public à vocation industrielle unique en Europe, le SIAAP transporte dans son réseau souterrain et "lave" l'eau utilisée par…

Voir les Détails
Publié le 2026-07-17

Moniteur d'Atelier - 75 - (H/F)

Domino Care
Paris

Moniteur d'Atelier - 75 - (H/F) 310727584 DOMINO CARE recrute un(e) Moniteur(trice) d'Atelier (H/F) - CDD - ESAT DOMINO CARE recherche un(e) Moniteur(trice) d'Atelier en CDD pour intervenir au sein d…

Voir les Détails
Publié le 2026-07-11

Charde de communication

Digital School of Paris
Paris

Nous recherchons, pour une client dans le domaines des énergies, un(e) alternant(e) chargé(e) de communication pour accompagner le développement de ses actions de communication interne et externe. …

Voir les Détails
Publié le 2026-06-27

Social Media Manager (H/F/X) CDI

Brainsonic
Paris

Pourquoi ce job est top :  Tu combineras stratégie, création et expertise technique pour animer les comptes Social Media de nos clients en étant dans une équipe où la créativité, la réactivité et l…

Voir les Détails
Publié le 2025-11-25

Director, M&A - France

Banyan Software
Paris

Banyan Software is the best permanent home for software businesses that serve specialized industries, their employees, and their customers. We are on a mission to acquire, build, and grow great compa…

Voir les Détails
Publié le 2026-07-18

Account Executive F/H - CDI

wppmedia
Paris

About WPP Media WPP is the trusted growth partner for the world’s leading brands. With exceptional talent, trusted data and intelligence, and world-class partnerships – all united by our pioneerin…

Voir les Détails
Publié le 2026-07-01