Senior Backend Engineer — Ownership, AI‑Driven Dev (AWS)

Potentia; Christchurch; On-site; NZD 110,000 - 150,000; 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 is seeking an experienced Backend Engineer to join a growing tech team in Christchurch, NZ, building large-scale, business-critical software. This hands-on role offers ownership across the full development lifecycle, from design to deployment, production support and continuous improvement, with close collaboration across product and technical teams.

You will design and maintain backend services and APIs, work with SQL databases, AWS services, and modern deployment practices, while

Qualifications

• 6+ years of backend software development experience.
• Strong C#/.NET experience with a strong SQL background.
• Hands-on AWS experience in a production environment.
• Experience with CI/CD and modern deployment practices.
• Experience with microservices or event-driven systems.
• Demonstrated leadership and ability to mentor teammates.

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

Tools

SQS

DynamoDB

S3

ECS

Lambda

Copilot

Cursor

Claude Code

Job description

Potentia is seeking an experienced Backend Engineer to join a growing tech team in Christchurch, NZ, building large-scale, business-critical software. This hands-on role offers ownership across the full development lifecycle, from design to deployment, production support and continuous improvement, with close collaboration across product and technical teams.

You will design and maintain backend services and APIs, work with SQL databases, AWS services, and modern deployment practices, while