Backend Software Engineer

Harvey Nash; Glasgow, Perth, City of Edinburgh; Hybrid; GBP 60,000 - 85,000; Full time

Job summary

Harvey Nash seeks a Senior Software Developer to join an Agile team in the energy markets sector. You will focus on backend systems using C#/.NET in cloud-first, distributed environments, delivering high-performance market execution and transaction processing software.

You will design and build scalable services, REST APIs, event-driven workflows and containerised microservices, with strong emphasis on observability, testing and secure coding practices.

Qualifications

• Backend applications in C# and .NET experience.
• High-throughput, event-driven distributed systems experience.
• Azure cloud services experience.
• Real-time data processing or transaction-oriented applications.
• SQL Server and NoSQL (Cosmos DB) experience.
• Docker experience.
• CI/CD pipelines and automated software delivery.
• Automated testing (unit/integration/e2e).
• Python scripting for automation.
• Observability with logging/monitoring (Splunk, Azure Monitor).

Responsibilities

• Design, develop and maintain scalable backend services in C#/.NET.
• Build event-driven apps for real-time data processing and workflows.
• Develop REST APIs, messaging and cloud-native services.
• Optimize performance via concurrency and profiling.
• Leverage Azure services for hosting, messaging and data processing.
• Implement EF Core data access and persistence with SQL/NoSQL.
• Create and deploy Dockerized microservices.
• Build CI/CD pipelines with Azure DevOps & GitHub Actions.
• Implement logging, monitoring and alerting for ops.

Skills

C# & .NET

Event-driven systems

Concurrency & performance

Azure cloud services

Real-time data processing

SQL Server

NoSQL (Cosmos DB)

Docker

CI/CD pipelines

Unit/integration testing

Python scripting

Logging/observability

Tools

Docker

Azure DevOps

GitHub Actions

Playwright

TUnit

Azure Monitor

Job description

Working Pattern: 50% of your time will be on site : Glasgow or Perth or Edinburgh

The Opportunity

We are seeking an experienced Senior Software Developer to join an Agile engineering team within a leading energy markets organisation. You will play a key role in developing and enhancing business-critical market execution and transaction processing applications, supporting the delivery of reliable, high-performance software across complex distributed environments.

This is an excellent opportunity for a backend-focused engineer with strong .NET and C# expertise to work on modern, cloud-first systems supporting real-time energy markets, with a focus on scalability, performance, resilience and continuous improvement.

Key Responsibilities

• Design, develop and maintain scalable backend services using C# and .NET within cloud-first and distributed environments.
• Build and enhance event-driven applications supporting real-time data processing, market execution and transaction workflows.
• Develop and integrate REST APIs, messaging solutions and cloud-native services.
• Optimise application performance through concurrency management, profiling, troubleshooting and performance analysis.
• Work with Azure services, including messaging, data processing, monitoring and application hosting.
• Implement robust data access and persistence solutions using Entity Framework Core, SQL Server and NoSQL technologies.
• Develop, test and deploy containerised applications and microservices using Docker.
• Contribute to automated build, testing and deployment pipelines using Azure DevOps and GitHub Actions.
• Implement effective logging, metrics, monitoring and alerting to improve application observability and operational support.
• Maintain high engineering standards through automated testing, secure coding practices, clean architecture and technical documentation.
• Collaborate with engineers, architects and business stakeholders to deliver reliable, maintainable software solutions.

Essential Skills and Experience

• Strong commercial experience developing backend applications using C# and .NET.
• Experience building high-throughput, event-driven distributed systems.
• Knowledge of concurrency, performance optimisation, profiling and complex system troubleshooting.
• Experience developing real-time data processing or transaction-oriented applications.
• Experience with Azure cloud services and messaging technologies, ideally Azure Event Hubs and Azure Service Bus.
• Strong understanding of Entity Framework Core, database migrations and data persistence patterns.
• Experience with SQL Server and NoSQL databases, ideally Azure Cosmos DB.
• Hands-on experience developing and deploying containerised applications using Docker.
• Knowledge of CI/CD pipelines and automated software delivery practices.
• Experience implementing automated unit, integration and end-to-end testing.
• Experience with Python for scripting, automation and operational tooling.
• Familiarity with Azure Monitor and Splunk for logging, monitoring and observability.
• Experience with Azure DevOps Pipelines and GitHub Actions.
• Knowledge of testing frameworks such as TUnit and Playwright.
• Experience supporting business-critical applications across cloud-based and on-premise environments.
• Understanding of secure software development, distributed messaging patterns and production operational support.

The Ideal Candidate

You will be a technically strong Senior Software Developer who enjoys solving complex engineering challenges and building reliable, high-performance backend systems. You will bring a proactive approach to software quality, performance optimisation and automation, alongside the ability to collaborate effectively within an Agile engineering team.