Back End Software Engineer (Senior)

Potentia; Canterbury; On-site; NZD 120,000 - 180,000; Full time

Benefits offered by this job

Healthcare benefits

Birthday leave

Additional annual leave based on tenor

Paid volunteering day

Office-based perks

Wellbeing and mental health support

Job summary

Potentia in Christchurch, NZ is seeking an experienced Senior Backend Engineer to join our growing technology team. You will own core backend services and APIs across the full development lifecycle, from design to deployment and production support.

You will work with C#/.NET, AWS, SQL, and CI/CD, influence architectural decisions, mentor peers, and help modernise systems using AI-assisted development tools.

Qualifications

• 6+ years of backend software development experience.
• Strong C#/.NET experience, with other OO languages considered.
• Strong SQL and relational database knowledge.
• Hands-on AWS experience in production.
• Experience with CI/CD and modern deployment practices.
• Experience taking ownership of production systems, including reliability and incident response.
• Experience mentoring engineers and technical leadership.
• Experience using AI coding tools such as Copilot, Cursor, Claude Code or similar.

Responsibilities

• Design, build and maintain reliable backend services and APIs
• Take ownership of solutions from initial design through to production
• Develop and improve service-oriented and event-driven applications
• Work with relational databases and SQL to build robust data solutions
• Design integrations with internal and external systems
• Contribute to architecture and technical design decisions
• Lead technical discussions and design reviews within your area
• Support the reliability and performance of production systems
• Work across deployment, CI/CD and modern cloud development practices
• Collaborate with product, operations and other technical teams to deliver new capabilities
• Help modernise existing systems and improve development practices
• Mentor and support other engineers
• Use AI-assisted development tools throughout the software development lifecycle

Skills

C#/ .NET

SQL

AWS

CI/CD

Microservices

Technical leadership

Mentoring

AI coding tools

System design

Communication

Tools

Copilot

Cursor

Claude Code

Job description

Jora New Zealand will close on 16th September 2026. Thank you for being with us, we are cheering you on as you continue your career journey.

We're looking for an experienced Backend Engineer to join a growing technology team working on large-scale, business-critical software.

This is a hands-on role with plenty of technical ownership. You'll be involved across the full development lifecycle, from designing services and APIs through to deployment, production support and ongoing improvement. You'll have the opportunity to influence technical decisions within your area, work closely with product and other technical teams, and help less experienced engineers develop their skills.

What you'll be doing

• Design, build and maintain reliable backend services and APIs
• Take ownership of solutions from initial design through to production
• Develop and improve service-oriented and event-driven applications
• Work with relational databases and SQL to build robust data solutions
• Design integrations with internal and external systems
• Contribute to architecture and technical design decisions
• Lead technical discussions and design reviews within your area
• Support the reliability and performance of production systems
• Work across deployment, CI/CD and modern cloud development practices
• Collaborate with product, operations and other technical teams to deliver new capabilities
• Help modernise existing systems and improve development practices
• Mentor and support other engineers
• Use AI-assisted development tools throughout the software development lifecycle

About the role

Senior Backend Engineer | C# / .NET | AWS | Christchurch

We're looking for an experienced Backend Engineer to join a growing technology team working on large-scale, business-critical software.

This is a hands-on role with plenty of technical ownership. You'll be involved across the full development lifecycle, from designing services and APIs through to deployment, production support and ongoing improvement. You'll have the opportunity to influence technical decisions within your area, work closely with product and other technical teams, and help less experienced engineers develop their skills.

What you'll be doing

• Design, build and maintain reliable backend services and APIs
• Take ownership of solutions from initial design through to production
• Develop and improve service-oriented and event-driven applications
• Work with relational databases and SQL to build robust data solutions
• Design integrations with internal and external systems
• Contribute to architecture and technical design decisions
• Lead technical discussions and design reviews within your area
• Support the reliability and performance of production systemsWork across deployment, CI/CD and modern cloud development practices
• Collaborate with product, operations and other technical teams to deliver new capabilities
• Help modernise existing systems and improve development practices
• Mentor and support other engineers
• Use AI-assisted development tools throughout the software development lifecycle

What you'll bring

We're looking for someone with strong commercial experience building and supporting backend systems in production.

You'll have:

• 6+ years of backend software development experience
• Strong C#/.NET experience preferred, with other object-oriented languages considered
• Strong SQL and relational database knowledge
• Experience building and maintaining automated tests
• Hands-on AWS experience in a production environment
• Experience with CI/CD and modern deployment practices
• Knowledge of AWS services such as SQS, DynamoDB, S3, ECS and Lambda
• Strong understanding of system design and software architecture
• Experience with microservices, service-oriented architecture or event-driven systems
• Experience taking ownership of production systems, including reliability and incident response
• A track record of providing technical leadership and mentoring other engineers
• Strong communication skills and the ability to work effectively with both technical and non-technical stakeholders
• Experience using AI coding tools such as Copilot, Cursor, Claude Code or similar

Nice to have

• Experience working with complex financial or transactional data
• Experience with ledgers or accounting systems
• Experience leading system modernisation or migration projects
• Redis, Memcached or similar caching technologies
• Experience with Postman, Bruno or similar API testing tools
• Experience with Jira and Confluence
• Experience interviewing, onboarding or supporting the growth of other engineers

What's on offer

• Healthcare benefits
• Birthday leave
• Additional annual leave based on tenure
• Paid volunteering day
• Office-based perks
• Wellbeing and mental health support

This is an opportunity to join a technically strong team where you'll have genuine ownership over the systems you work on and the opportunity to influence how they are built and evolved.