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Senior C# Software Engineer

Company Description

Checkout.com is one of the most exciting fintechs in the world. Our mission is to enable businesses and their communities to thrive in the digital economy. We’re the strategic payments partner for some of the best known fast-moving brands globally such as Wise, Hut Group, Sony Electronics, Homebase, Henkel, Klarna and many others. Purpose-built with performance and scalability in mind, our flexible cloud-based payments platform helps global enterprises launch new products and create experiences customers love. And it's not just what we build that makes us different. It's how.

We empower passionate problem-solvers to collaborate, innovate and do their best work. That’s why we’re on the Forbes Cloud 100 list and a Great Place to Work accredited company. And we’re just getting started. We’re building diverse and inclusive teams around the world — because that’s how we create even better experiences for our merchants and our partners. And we need your help. Join us to build the digital economy of tomorrow.

Job Description

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. Across the business we primarily use C# .NET Core, hosted on AWS with event-driven microservices. With your technical expertise you will lead project priorities, deadlines, and deliverables. You will design, develop, test, deploy, maintain, and enhance software solutions.

Responsibilities:

  • Collaborate with our multidisciplinary team to own and deliver key features
  • Assist in requirements identification and in producing specifications
  • Build and maintain a development environment for efficient testing and integration
  • Define and create acceptance tests to be automated
  • Support the creation and maintenance of technical documentation
  • Participate in team knowledge management and make recommendations for continuous improvement of SDLC
  • Contribute to and enforce our API coding standards, best practices, and procedures

Qualifications

  • Programming experience in C#
  • A willingness to learn new skills and using the best tools for the job
  • Experience in Software Development, Design, and Architecture, with security in mind
  • Excellent practical knowledge of OOP concepts and SOLID principles
  • Solid understanding of HTTP and RESTful design
  • Experience with asynchronous, event-driven architecture
  • Database experience with SQL and NoSQL
  • Experience with Continuous Integration and Deployment workflows
  • Cloud-based application development experience
  • Superb communication skills, ability to interact effectively with multidisciplinary teams

    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

Hybrid Working Model: All of our offices globally are onsite 3 times per week (Tuesday, Wednesday, and Thursday). We’ve worked towards enabling teams to work collaboratively in the same space, while also being able to partner with colleagues globally. During your days at the office, we offer amazing snacks, breakfast, and lunch options in all of our locations.

Apply without meeting all requirements statement 

If you don't meet all the requirements but think you might still be right for the role, please apply anyway. We're always keen to speak to people who connect with our mission and values.

We believe in equal opportunities

We work as one team. Wherever you come from. However you identify. And whichever payment method you use. 

Our clients come from all over the world — and so do we. Hiring hard-working people and giving them a community to thrive in is critical to our success.

When you join our team, we’ll empower you to unlock your potential so you can do your best work. We’d love to hear how you think you could make a difference here with us. 

We want to 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. We’ll be happy to support you.

Take a peek inside life at Checkout.com via

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What You Should Know About Senior C# Software Engineer, Checkout.com

At Checkout.com, we're on the lookout for a talented Senior C# Software Engineer to join our innovative team in London, UK! Imagine being part of a company that's redefining the digital economy and enabling businesses to thrive worldwide. As a Senior Software Engineer, your days will be filled with vibrant collaboration, where you’ll work hand-in-hand with passionate problem-solvers across our diverse portfolio of products. You’ll be at the forefront of driving projects that truly matter, leveraging your expertise in C# .NET Core to design, develop, and maintain high-quality software solutions. We aim to foster an environment where your curious nature and leadership qualities shine as you tackle full-stack challenges and contribute to crafting scalable, resilient systems using the latest technologies. Your deep understanding of OOP principles, cloud-based application development, and coding best practices will empower you to impact our product's future. This is not just any engineering role. At Checkout.com, you’ll also have the opportunity to mentor junior members, ensuring that everyone on the team grows and learns together. Plus, our hybrid working model lets you enjoy the best of both worlds—collaborating in our lively office space and working remotely. Join us on this exciting journey to build the digital economy of tomorrow and make a difference together as a team!

Frequently Asked Questions (FAQs) for Senior C# Software Engineer Role at Checkout.com
What are the responsibilities of a Senior C# Software Engineer at Checkout.com?

As a Senior C# Software Engineer at Checkout.com, you'll lead specific projects, collaborate with multidisciplinary teams to deliver key features, build and maintain a development environment for efficient testing, and support the creation of technical documentation. Your role also includes defining acceptance tests for automation and contributing to API coding standards while continuously improving the software development lifecycle (SDLC).

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What qualifications do I need to apply for the Senior C# Software Engineer position at Checkout.com?

To qualify for the Senior C# Software Engineer role at Checkout.com, candidates should have extensive programming experience in C#, knowledge of OOP concepts, and experience with software design and architecture, particularly secure coding practices. Familiarity with asynchronous, event-driven architecture, SQL and NoSQL databases, and continuous integration and deployment (CI/CD) workflows is also essential.

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How does checkout.com support the professional growth of its Senior C# Software Engineers?

At Checkout.com, we prioritize your professional development as a Senior C# Software Engineer. You will have opportunities to mentor junior team members, enabling their technical growth while enhancing your own skills. Our culture encourages continuous learning and knowledge sharing, ensuring you're always up-to-date with the latest technologies and practices in the industry.

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What kind of projects will I work on as a Senior C# Software Engineer at Checkout.com?

As a Senior C# Software Engineer at Checkout.com, you'll work on diverse projects that are critical to our goals. This includes developing scalable microservices, designing loosely coupled systems, and tackling challenges associated with our cloud-based payment platform, helping to shape the future of digital transactions for businesses around the globe.

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Is there a specific technology stack that Senior C# Software Engineers at Checkout.com work with?

Yes, Senior C# Software Engineers at Checkout.com predominantly work with C# .NET Core, as well as AWS for hosting, and are involved with event-driven microservices architecture. Familiarity with these technologies, alongside a passion for using the best tools for the job, is important for the role.

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Common Interview Questions for Senior C# Software Engineer
Can you explain your experience with C# and how you've applied it in past projects?

When answering this question, focus on specific projects where you utilized C#. Highlight your understanding of OOP principles, any frameworks you’ve worked with, and the impact your contributions had on project success. Give examples of challenges faced and how you overcame them.

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What strategies do you use for debugging C# applications?

Discuss your systematic approach to debugging, which may include using built-in visual studio tools like the debugger, analyzing logs, conducting unit tests, and leveraging exception handling to identify issues. Share any specific debugging stories that illustrate your problem-solving abilities.

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How do you ensure your code is maintainable and scalable?

Explain your adherence to coding standards, commenting practices, and your familiarity with design patterns. Additionally, discuss how you ensure scalability through architecture decisions and how you incorporate feedback loops within your teams for continuous improvement.

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Discuss your experience with cloud technologies, specifically AWS.

Elaborate on your hands-on experience with AWS services, including how you’ve deployed applications in a cloud environment, managed resources, and optimized performance. Providing specific examples of previous projects will demonstrate your expertise effectively.

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What role do you think documentation plays in software engineering?

You should emphasize the importance of comprehensive technical documentation for maintaining clear communication across teams, aiding onboarding, and ensuring consistency in codebase management. Provide examples of how you've contributed to documentation within your past roles.

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How do you handle conflicting opinions within a team?

Discuss your approach to conflict resolution, emphasizing collaboration and open communication. Highlight your ability to listen, empathize, and seek common ground to come to a mutually beneficial solution while ensuring project goals are met.

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Can you describe a challenging technical problem you solved in a previous role?

Provide a detailed account of the problem, the steps you took to analyze it, the solution you implemented, and the positive outcome it produced. This showcases your critical thinking and problem-solving skills.

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What is your approach to mentoring junior developers?

Mention your philosophy regarding mentorship—fostering a collaborative environment where junior developers can ask questions, contribute ideas, and grow. Discuss specific mentoring experiences you’ve had and the techniques you used to help others succeed.

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How do you stay updated with the latest developments in technology?

Mention resources you use such as online courses, blogs, webinars, or community events. Discuss your proactive approach to learning and adapting new skills, ensuring you remain at the forefront of the rapidly evolving tech landscape.

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What do you believe to be key qualities of a successful Senior C# Software Engineer?

Discuss qualities such as versatility, strong communication skills, leadership capabilities, and a customer-first mindset. Elaborate on why these qualities are vital in achieving personal success, effective teamwork, and meeting company goals.

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EMPLOYMENT TYPE
Full-time, hybrid
DATE POSTED
January 3, 2025

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