Senior Software Engineer .NET

Senior Software Engineer .NET - Dojo

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We’re reinventing payments. In less than four years, Dojo disrupted the market to become the largest and most loved acquirer in the UK. Our payments infrastructure, purpose-built for in‑person commerce, is game‑changing. Over 150,000 customers across four countries transact billions with us every year. We are just getting started.

Our people are the driving force behind our success. They are our greatest investment and our ultimate competitive advantage. We hire exceptional people and give them the autonomy, trust, and ownership to thrive. The results take care of themselves.

As a Senior Software Engineer in the Data Products team, you will play a key role in shaping how we transform Dojo’s payments data into valuable insights for our merchants. You’ll contribute to building scalable data products and APIs that enable small businesses to understand their performance, benchmark against peers, and unlock new opportunities for growth.

You will actively participate in Agile ceremonies such as daily stand‑ups, sprint planning, and retrospectives, collaborating closely with product managers, analysts, and engineers across the business. Our team is at the heart of Dojo’s mission to help merchants thrive by providing intelligent, data‑driven insights through accessible and impactful products.

This is a unique opportunity to work on greenfield initiatives, designing systems that scale with millions of transactions while using modern technologies and best practices.

• Design, develop, and maintain scalable backend services and APIs using .NET.
• Build and optimise data models (SQL/No
  
  SQL) to process and serve high‑volume payments data.
• Work closely with product managers and data analysts to turn raw data into actionable insights.
• Implement reliable data pipelines and integrations that ensure merchants receive accurate, timely, and meaningful analytics.
• Write clean, maintainable, and well‑documented code with a strong focus on testing and observability.
• Collaborate with other engineers through code reviews, technical discussions, and knowledge‑sharing sessions.
• Contribute to architectural decisions to ensure our systems are scalable, secure, and future‑proof.

• Solid experience with .NET for building APIs and backend services.
• Strong understanding of data modelling and performance tuning (SQL/No
  
  SQL, ideally Mongo
  
  DB).
• Knowledge of data pipelines, event‑driven systems, or batch processing.
• Familiarity with best practices in software development (CI/CD, automated testing, version control).
• Good communication skills and the ability to collaborate in cross‑functional teams.
• Passion for solving problems with data and building products that help customers grow.

• Experience with frontend frameworks like React (or willingness to learn).
• Exposure to cloud platforms (e.g. Google Cloud Platform, AWS, or Azure).
• Familiarity with Kafka, gRPC, or other streaming/event‑driven architectures.
• Knowledge of data analytics tools or business intelligence platforms.
• Experience with Infrastructure as Code (Terraform, Pulumi).
• Exposure to machine learning workflows or building highly efficient, scalable data processing pipelines.

We believe our best work happens when we collaborate in‑person. These “together days” foster communication, drive innovation, and spark our brightest ideas. That’s why we have an office‑first culture. This means working from the office 4+ days per week. With offices across Europe, we know a thing or two about staying dynamic. Need deep focus? Head to a quiet zone. Big ideas?

Collaboration spaces have you covered. Just here for a catch‑up? Our social hubs make it easy.

• You’re curious. You have a real desire to learn and create.
• You’re relentless. You keep going even when it’s easier not to.
• You’re customer‑obsessed. You know how important customers are to what you do.

From local bakeries to well‑known eateries, Dojo payments serve over 150,000 places across the UK. Building teams that reflect the diversity of the businesses we serve is fundamental to creating relevant, innovative products  drive to improve diversity, equity and inclusion is closely linked to helping employees thrive and innovating for better customer experiences. If you care about your work, you’re curious, and you think customer‑first, you have a place at Dojo.

To make sure you’re the best you can be throughout the recruitment process, let us know if you need any extra adjustments to help you thrive.

Visit dojo.careers to find out more about our benefits and what it’s like to work at Dojo, or check out our Linked In and Instagram pages.

Mid‑Senior level

Full‑time

Engineering and Information Technology