Bertelsmann-Jobs
Senior Software Developer
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Job Description
We have an opportunity for an experienced Senior Software Developer to join our Technology team in London on a permanent basis.
You’ll join our Integration team at an important point in our journey, helping us to modernise and migrate our integration landscape. This is a hands-on senior development role, with a strong focus on C# and .NET, APIs, microservices and cloud-based integration.
Alongside building and improving solutions yourself, you’ll use your technical experience to support and mentor other developers, sharing knowledge and helping to strengthen engineering practices across the team.
About the team
The Technology team provides expertise and effective solutions to Penguin Random House. We integrate flexibility and agility which supports our consistent way of working. We set ourselves up for success by holding ourselves accountable and welcoming change. Each member of the Technology team brings skill and initiative to their role; we take personal ownership within a one team culture, working collaboratively to meet expectations from our stakeholders who trust us to deliver.
The role
Key responsibilities:
- Develop and modernise integrations using C# and .NET, including Azure Logic Apps, Function Apps, containerised microservices and event-driven microservices.
- Build, integrate and manage APIs that connect services and platforms across our Technology landscape.
- Design and develop secure, maintainable solutions using established engineering principles and patterns.
- Work with Azure messaging and integration technologies to support event-driven architectures.
- Contribute to automated testing, CI/CD and Git-based development practices.
- Work closely with Architects and other developers to shape effective technical solutions.
- Create and maintain clear process, service and technical documentation.
- Mentor and support other developers, sharing your technical knowledge and helping colleagues to develop their skills in Azure Integration Services.
- Help ensure solutions are secure, well maintained and compliant with internal governance.
What you’ll bring
Essential criteria
- Strong professional experience of developing with C# and .NET, including ASP.NET Core MVC and Web API development.
- Experience of designing and building REST APIs, microservices and event-driven solutions.
- Strong knowledge of software engineering principles, including design patterns, SOLID principles and clean architecture.
- Experience with Docker and containerisation, as well as automated testing using xUnit or similar frameworks.
- Experience working with SQL Server and data access technologies.
- Good knowledge of CI/CD and Git-based development.
- Experience of designing event-driven solutions using Azure Service Bus, Apache Kafka or equivalent messaging technologies.
- Experience implementing secure APIs using OAuth 2.0, OpenID Connect, JWT and Microsoft Entra ID.
- Experience using AI-assisted development tools such as GitHub Copilot, Microsoft Copilot, Claude Code, Gemini CLI, Cursor or similar, while maintaining engineering quality.
- An interest in mentoring other developers and sharing technical knowledge across the team.
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Desirable criteria
Experience with some of the following Azure technologies would be useful:
- Azure API Management
- Azure Service Bus
- Azure Event Grid
- Azure Container Apps
- Azure Functions
- Azure Logic Apps
- Azure Key Vault
- Application Insights and Azure Monitor
- Infrastructure as Code using Terraform
Application instructions
Please apply with your CV by 23:59 on Wednesday 23rd September 2026. Applications will be reviewed on a rolling basis and the advert may close at any time. We would encourage you to apply as soon as possible.
Please note we are looking for someone to join the team as soon as possible, but we are also happy to accommodate a reasonable notice period for the right candidate.
AI
Here at Penguin, we believe in the power of authenticity and human creativity. When you apply for a position, we want to encourage you to showcase your unique voice. Throughout our recruitment process, please share your own thoughts, experiences, and skills. This helps us get a true sense of who you are and what you might bring to our team.
We celebrate creativity and diverse perspectives, so please be yourself! While we recognise AI tools can be helpful, we recommend using them thoughtfully to ensure your responses reflect you.
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Disability Confident
As a Disability Confident Committed organisation, we offer interviews to candidates with a disability who meet the essential criteria for the role, and opt-in on their application form. The essential criteria for this role are listed as part of the ‘What you’ll bring’ section.
There may be times when the volume of applications means we cannot take all eligible candidates to interview. We encourage you to tell us about any reasonable adjustments you may need by emailing [email protected]. Remember, you only need to share what you are comfortable with, for us to support your request.
Salary
The salary for this opportunity is c.£74,000 depending on how your skills and experience align to the role, plus a generous bonus scheme and benefits.
Hybrid working
While our offices across the UK are places to connect, collaborate and celebrate with colleagues, we recognise that flexibility around where you work is just as important.
For this role we expect that you will work from our head office in Embassy Gardens, London a minimum of 2 days per week (Tuesday & Thursday) with additional days for team meetings, townhalls etc as required. There may also be occasional travel to our warehouse site in Frating, Colchester.
Additional Information
Disclosure requirements pertaining to the collection of your personal data:
Responsible for processing the information provided in your application is the company specified in the job advertisement, with its registered office as indicated. The company processes your data for the purpose of establishing an employment relationship on the basis of Art. 6 (1) b GDPR / Section 26 (1) sentence 1 BDSG.
The retention period for your data is determined by the statutory time limits applicable in the respective country, beginning upon completion of the recruitment process. You can find these here.
You can contact the company’s Data Protection Officer at the above-mentioned postal address.
Further information on data protection and your rights can be found here.
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LegalEntity: The Random House Group Limited
Compensation: up to GBP 74000 - yearly
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