Senior Software Developer – C# / .NET / SQL

About Jigsaw

At Jigsaw Fuel Management, we don't just develop software, we design, manufacture and deliver innovative technology used by businesses across the UK and internationally.

We're an established UK technology company specialising in IoT-connected fuel management, tank monitoring and telemetry systems. Our solutions combine intelligent hardware, real-time communications and cloud-based software to help businesses monitor and manage their operations.

With a strong reputation in our industry, we're continually investing in new technology and developing the next generation of our software platforms.

We're looking for an experienced Senior Software Developer to join our Lancashire based team and play a key role in shaping the future of our products.

The Role

We're looking for a talented, hands on developer who enjoys solving technical challenges, takes pride in producing quality software and wants to see their work make a real world impact.

Working primarily with C#, .NET and Microsoft SQL Server, you'll develop and enhance the software platforms that power our fuel management and telemetry solutions.

You'll work across web services, APIs, reporting systems and customer facing applications, improving existing systems while contributing to exciting new product developments.

This is an opportunity to join our small but experienced team where your ideas are valued, your contribution is recognised and you'll have a genuine influence on the technology we develop.

Key Responsibilities

· Develop and maintain applications using C# and the .NET environment.

· Design, develop and optimise Microsoft SQL Server databases.

· Develop and maintain REST APIs and web services.

· Work with large volumes of operational and telemetry data.

· Develop customer reports, dashboards and data exports.

· Build and maintain report-generation functionality.

· Integrate Jigsaw systems with customer ERP, billing and third-party software.

· Improve database performance, reliability and scalability.

· Support new hardware and telemetry products through software integration.

· Contribute to future projects involving analytics, AI and automated monitoring.

· Maintain appropriate testing, documentation and software security standards.

· Diagnose and resolve issues within existing systems.

Essential Skills and Experience

Candidates should have:

· At least 5 years' commercial experience as a software developer.

· Strong experience with C#.

· Strong experience within the .NET environment.

· Very good knowledge of Microsoft SQL Server.

· Experience writing and optimising SQL queries and stored procedures.

· Experience developing database-driven applications.

· Experience developing or integrating REST APIs and web services.

· Experience working on established commercial software systems.

· Good understanding of software architecture and application design.

· Strong debugging and problem-solving skills.

· Ability to work independently and take ownership of development tasks.

Reporting Experience

Experience of producing business reports from SQL-based systems is particularly important.

This may include experience with technologies such as:

· SQL Server Reporting Services (SSRS)

· Crystal Reports

· Power BI

· RDLC

· PDF and Excel report generation

· Custom reporting within .NET applications

· Scheduled and automated reporting

Experience with one or more of these would be highly desirable.

Desirable Experience

Experience in any of the following would be advantageous:

· ASP.NET / ASP.NET Core

· JavaScript and web front-end technologies

· Azure

· Authentication and user-management systems

· IoT or telemetry applications

· Time-series or high-volume data

· Data analytics

· AI or machine-learning integration

· ERP or billing-system integration

· JSON / XML data exchange

· Git or other source-control systems

Previous experience within the fuel, logistics, telemetry or industrial sectors is useful but not essential.

What We Offer

· Salary of £55,000–£65,000, depending on experience.

· Permanent, full-time employment.

· Location: Clayton Green, Lancashire, Hybrid options considered after inset period

· The opportunity to take significant ownership of established commercial software.

· Direct involvement in new product development.

· A varied technical environment covering software, databases, cloud services, telemetry and physical hardware.

· The opportunity to contribute to future analytics and AI projects.

· A role where your technical decisions can have a direct impact on product development and the business.

The Opportunity

This is not simply a website development position.

Our software communicates with remote fuel management and tank monitoring hardware and processes significant volumes of real world operational data.

Future development includes expanded remote tank monitoring, customer system integration, automated replenishment, advanced reporting and the use of AI to analyse large historical datasets.

We're looking for an experienced developer who can bring fresh ideas, contribute to our continued growth and play a key role in developing the next generation of products.

Pay: £55,000.00-£65,000.00 per year

Benefits:

• Additional leave
• Casual dress
• Company pension
• Free parking
• On-site parking

Work Location: In person