Applications Test Engineer

Salary: Competitive Salary| Derby - Onsite | Contract - 6 months initially | Flexible Working

Security Clearance: Minimum SC clearance required and have it cleared already; DV highly desirable

We're recruiting for a Applcations Test Engineer to join a growing and ambitious team at a pivotal stage in its journey.

Want to be part of a business that is disrupting the national security market? Our client is a fast-growing UK sovereign technology company delivering innovative encryption and secure communications solutions to some of the country's most demanding customers. Combining deep technical expertise with an agile, customer-focused approach, they are challenging the status quo and proving that world-class capability can come from a dynamic and ambitious SME.

What We're Looking For:

• 5+ years’ commercial experience in software or applications testing.
• Strong experience testing Windows desktop applications , ideally within a .NET environment.
• A solid understanding of functional, system, regression and integration testing .
• Experience writing and executing structured test cases and test procedures.
• Strong skills in defect investigation, troubleshooting and root cause analysis .
• Experience testing UI/UX, user workflows and application functionality .
• Good networking knowledge across TCP/IP, routing, switching, VLANs, DHCP, DNS and VPNs .
• Practical understanding of SNMP and network device management .
• Experience using Wireshark or similar packet-analysis tools.
• Strong written and verbal communication skills, with the ability to produce clear technical documentation and test reports.
• A methodical, analytical approach and excellent attention to detail.
• The ability to work independently while collaborating effectively with software developers and engineering teams.

Key Responsibilities:

• Create, review and maintain test plans, test procedures and test cases for Windows desktop applications.
• Plan and execute functional, system, regression and integration testing .
• Test applications used to configure, monitor and manage secure networking devices .
• Validate software requirements and ensure requirements traceability throughout the development lifecycle.
• Assess UI, UX and end-to-end user workflows to ensure applications are intuitive, reliable and fit for purpose.
• Identify, reproduce, investigate and document software defects and technical issues .
• Perform troubleshooting and root cause analysis , working closely with developers and engineers to resolve issues.
• Validate communications between software applications and network-connected hardware .
• Test SNMP functionality and network device management features.
• Analyse network traffic and communications using Wireshark and similar tools.
• Record test results, observations and defects accurately and maintain clear technical documentation.
• Support software releases, acceptance testing and customer-facing validation activities .
• Contribute to improving testing processes, methodologies and quality standards .
• Support the development of automated testing and contribute scripting or automation ideas where appropriate.
• Work collaboratively with software developers, systems engineers and product stakeholders to ensure high-quality software delivery.

What's on offer:

• 25 days annual leave
• Company pension
• 4x Death in service
• EV car scheme
• Benefit platform with high street discounts