Senior .Net Developer

Job Description:

Senior .Net Developer

• Permanent position
• Wellington
• Leading government agency

Why join DXC Technology? 

 
DXC Technology (NYSE: DXC) is a leading enterprise technology and innovation partner delivering software, services, and solutions to global enterprises and public sector organizations — helping them harness AI to drive outcomes at a time of exponential change with speed. With deep expertise in Managed Infrastructure Services, Application Modernization, and Industry-Specific Software Solutions, DXC modernizes, secures, and operates some of the world’s most complex technology estates. Learn more on dxc.com

At DXC we pride ourselves on delivering excellence in everything we do. What this means for you is the opportunity to be a part of delivering innovative solutions and helping to solve real business problems for a wide variety of valued clients. Be a part of a strategic Microsoft partnership that provides you with opportunities to deepen your expertise and work at the cutting-edge of technology. 

What you will be doing 

As a Senior .NET Developer, you will provide technical leadership and assurance for applications supporting mission‑critical Public Sector services. You will design, enhance, and support secure, resilient systems using modern .NET and responsible Generative AI practices.

This role goes beyond delivery, owning system health, supportability, and long‑term sustainability in live production environments.

 What will keep you busy 

• Design, build, and support complex .NET systems that operate at scale
• Own critical services, APIs, or application components
• Lead root cause analysis for incidents and systemic issues
• Ensure solutions are operable, supportable, and well‑documented

• Lead the responsible use of Generative AI in:
  • Code modernisation and refactoring
  • Accelerated defect diagnosis and log analysis
  • Test coverage and regression analysis
• Define guardrails for AI use within the team
• Ensure AI application aligns to public sector risk and compliance expectations

• Set and uphold coding, security, and quality standards
• Proactively manage and reduce technical debt
• Embed monitoring, logging, and resiliency patterns
• Influence design decisions to balance speed, stability, and risk

• Lead improvements to CI/CD and release processes
• Support cloud‑native and hybrid hosting models (Azure preferred)
• Drive operational excellence through automation where appropriate

• Apply and promote good coding practices through code reviews that support clean design, follow standards, and help build team capability
• Continuous drive for consistency and improvements in Coding standards
• Mentor developers in support and delivery practices
• Act as a trusted technical advisor to delivery and operations teams
• Work closely with Architects, Technical Leads, and Service Managers

The skills you will bring 

 Essential

• Extensive experience with C# and modern .NET
• Strong background supporting production, high‑availability systems
• Experience designing secure and resilient architectures
• Strong DevOps and CI/CD capability
• Cloud experience (Azure strongly preferred)
• Experience working in regulated or public sector environments

Desirable

• Experience applying Generative AI in enterprise or support contexts
• Microservices or distributed systems experience
• Containerisation (Docker / Kubernetes)
• ITIL and service management awareness
• Experience with Java is an advantage

Your working environment  

At DXC Technology, we believe strong connections and community are key to our success. Our work model prioritizes in-person collaboration while offering flexibility to support wellbeing, productivity, individual work styles, and life circumstances. We’re committed to fostering an inclusive environment where everyone can thrive. 

Our culture and benefits 

 DXC is committed to building better futures for our customers, colleagues, environment, and communities. We take care of each other and foster a culture of inclusion, belonging and corporate citizenship. We put this to action developing and implementing societal initiatives within our Social Impact Practice. #WeAreDXC 

As an employer of choice, our “people first” philosophy means we offer competitive remuneration, benefits, training and career opportunities that reflect our commitment to improving the lives of our employees, and the communities in which we live and work. Some of these include; 
 

• Extensive resources to support your onboarding and continual development including DXC University 

• We know that great people refer great people. We will reward you when you bring your friends and family to work at DXC 

• More time to do the things you love with flexible leave options, including purchased leave 

• Take time to give back with charitable and emergency services volunteer days 

• Well-being matters to us and our Employee Assistance Program is there to support you and your family 

• And of course, all the basics; novated leasing, discounted health insurance, paid parental leave and many other discounts 

We are an Equal Opportunity Employer  

DXC is proud to be an equal opportunity employer and we welcome submissions from people from all walks of life. We celebrate our diversity and recognise it is the unique contributions of our people that give us our edge. We stand by the ‘bring your whole-self to work’ philosophy. It is our inclusive culture that powers our results, and our company grows only if our people grow.  

Accommodation of special needs for qualified candidates may be considered within the framework of the DXC Accommodation Policy. In addition, DXC Technology is committed to working with and providing reasonable accommodation to support qualified individuals with physical and mental disabilities.  

At DXC Technology, we believe strong connections and community are key to our success. Our work model prioritizes in-person collaboration while offering flexibility to support wellbeing, productivity, individual work styles, and life circumstances. We’re committed to fostering an inclusive environment where everyone can thrive.

Recruitment fraud is a scheme in which fictitious job opportunities are offered to job seekers typically through online services, such as false websites, or through unsolicited emails claiming to be from the company. These emails may request recipients to provide personal information or to make payments as part of their illegitimate recruiting process. DXC does not make offers of employment via social media networks and DXC never asks for any money or payments from applicants at any point in the recruitment process, nor ask a job seeker to purchase IT or other equipment on our behalf. More information on employment scams is available here.