Senior Software Developer (.NET) in Cardiff

Yolk Recruitment Ltd; Cardiff; Hybrid; GBP 48,000 - 65,000; Full time

Job summary

Yolk Recruitment Ltd is seeking a Senior Software Developer to design and deliver an enterprise-grade Azure-based integration platform. You will lead the design, build, and delivery, set technical direction, and mentor the growing in-house team.

You will work on event-driven services, API/microservices on Azure, and collaborate with DevOps to ensure reliable deployments while championing quality and security.

Qualifications

• Proficient in delivering enterprise solutions on Microsoft Azure.
• Strong in .NET/C# development and API design.
• Experience with event-driven architectures and related Azure services.
• Proven ability to lead and mentor developers in a growing team.
• Experience working in Agile environments and collaborating with stakeholders.

Responsibilities

• Design and develop an event-driven API/microservices platform on Azure.
• Integrate multiple third-party systems securely and reliably.
• Collaborate with DevOps to ensure smooth deployment and operations.
• Establish coding standards and best practices across the lifecycle.
• Present proofs of concept and guide technical decisions.
• Recruit, mentor and lead future developers.
• Contribute to wider digital and technology strategy.

Skills

Azure

.NET/C#

Event-driven design

APIs/Microservices

Leadership/Mentoring

Agile

Stakeholder communication

Tools

Azure Service Bus

Event Hubs

Event Grid

Functions

APIM

Web Apps

SQL

Cosmos DB

Job description

Software Developer (.Net)

£56,631

Bridgend - Hybrid

Overview

Are you an experienced developer who wants to shape a new digital function from the ground up? We're looking for a Senior Software Developer to help design and deliver modern services that make a real impact.

You’ll play a leading role in building a new event-driven integration platform on the Microsoft Azure stack, working initially with consultants before taking ownership as our in-house technical lead. This isn't just about writing code-you'll also grow and mentor a new team, set best practice, and help drive a digital transformation.

Job Title: Senior Software Developer

Reports to: Software Engineering Manager

Overview

As the first member of our new in-house development team, you'll lead the design, build, and delivery of an enterprise-grade Azure-based integration platform. You'll set technical direction, champion quality and security, and mentor future developers to deliver excellent digital services.

Key Responsibilities

• Design and develop an event-driven API/microservices platform on Azure.
• Integrate multiple third-party systems securely and reliably.
• Collaborate with DevOps teams to ensure smooth deployment and operations.
• Establish coding standards and best practice across the development lifecycle.
• Present proofs of concept and guide technical decisions.
• Recruit, mentor, and lead future developers.
• Contribute to wider digital and technology strategy.

Essential

• Strong experience delivering enterprise solutions on Microsoft Azure.
• Advanced skills in .NET / C#.
• Hands-on expertise with event-driven design and technologies (Azure Service Bus, Event Hubs, Event Grid).
• Experience building APIs/microservices with Azure tools (Functions, APIM, Web Apps).
• Knowledge of Azure data services (SQL, Storage, Data Lake, Cosmos DB).
• Track record of leading development and mentoring others.
• Strong communication skills, able to engage both technical and non-technical stakeholders.
• Experience working in agile teams.

Desirable

• Microsoft Azure certifications.
• GraphQL (e.g. HotChocolate).
• Exposure to Kafka or other event-driven platforms.
• Knowledge of DevOps/IaC (Docker, Azure DevOps).
• Familiarity with Azure observability, identity, and security tools.
• Gitflow knowledge.

Personal Qualities

• Customer-focused and improvement-driven.
• Positive, proactive, and collaborative.
• Strong problem-solving and influencing skills.
• Committed to personal and team development.

Yolk Recruitment is an equal opportunities employer and embraces diversity in our workforce. We employ the best people for the job at hand and actively encourage applications from all qualified candidates, regardless of gender, age, race, religion, sexual orientation, disability, educational background, parental status, gender identity or any other protected characteristic. We champion and celebrate diversity at Yolk allowing our team to bring their whole selves to work.