Senior Back End Engineer

Crescent Consulting

Auckland

Hybrid

NZD 130,000 - 190,000

Full time

41 hours ago

Be an early applicant

Application generator

An application made for this job — a tailored resume and cover letter that speak straight to the posting.

Get past ATS filters

Benefits offered by this job

KiwiSaver

Healthcare

Birthday day off

Extra annual leave

Employee Share Purchase Plan

Volunteering day

Office snacks & drinks

Mental health resources

Job summary

XE is recruiting a Senior Backend Engineer in New Zealand. This role focuses on building and modernising backend services for cross-border payments and FX, with production ownership and a strong emphasis on reliability and scalable architecture.

You’ll work in a hybrid NZ-based team (Christchurch or Auckland) alongside product, compliance, operations, and fellow engineers. Expect collaboration across global teams, mentoring, and adopting AI-assisted development practices to drive better delivery.

Qualifications

Strong backend software engineering experience in production environments.
Solid experience with C#/.NET or similar OO backend language (Java, Kotlin, Go).
Good SQL and relational database fundamentals.
Experience designing and building APIs, services, and integrations.
Strong understanding of system design and architecture.
Experience with microservices or event-driven systems.
Exposure to AWS and modern cloud deployment practices.
Experience writing and maintaining automated tests.
Comfort with CI/CD pipelines and production release processes.
Practical approach to reliability, observability, and production support.
Ability to contribute to technical direction, design reviews, and mentoring.
Clear written and verbal communication skills.

Responsibilities

Designing, building, and owning backend services that support payments, FX, onboarding, settlement, KYC/KYB, and multi-currency flows.
Developing APIs, integrations, and service layers used across XE’s platform.
Working with C#/.NET and related backend technologies.
Designing data models and working with SQL and relational databases.
Building and supporting cloud-based services on AWS.
Contributing to CI/CD, deployment practices, automated testing, and production readiness.
Owning production health across your domain, including reliability and incident response.
Helping modernise legacy systems into XE’s newer platform architecture.
Leading design reviews and contributing to architecture decisions.
Mentoring intermediate engineers and supporting stronger engineering practice.
Using AI-assisted development tools as part of daily workflow.

Skills

Backend engineering

C# / .NET

API design

SQL & relational DB

Cloud/AWS

CI/CD

Testing

Mentoring

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.

Crescent Consulting – Auckland, North Island

XE are growing their technology team and are looking for a Senior Back End Engineer to help build and modernise the systems behind a global payments and foreign exchange platform.

XE supports consumers and businesses across New Zealand, Australia, the UK, Canada, and the US, helping them collect, convert, hold, and send money across international markets. The business has global scale through Euronet Worldwide, but the team is still small enough for engineers to have real ownership, influence, and visibility across the work they deliver.

XE | Christchurch or Auckland | Hybrid

XE are growing their technology team and are looking for a Senior Back End Engineer to help build and modernise the systems behind a global payments and foreign exchange platform.

The role

This is a hands‑on senior backend engineering role working on the services, APIs, data flows, integrations, and production systems that support XE’s cross‑border payments products.

You’ll be joining XE during a key stage of technology growth and platform modernisation. The business is rebuilding core platform capability across corporate and consumer products, and the NZ team is playing an important role in that work.

You’ll work closely with product, compliance, operations, architects, team leads, and other engineers to turn complex requirements into reliable, well‑designed backend systems. The role is internal-facing rather than client-facing, but you’ll need to communicate clearly, contribute to technical decisions, and help raise engineering standards within your domain.

XE is also moving strongly into AI‑assisted engineering. Tools such as GitHub Copilot, Cursor, Claude Code, or similar are part of how the team builds, tests, documents, and ships software. This role will suit someone who is already using AI tools in a practical way, or who has a strong view on how they can be used responsibly in modern software delivery.

What you’ll be doing

You’ll be involved in:

Designing, building, and owning backend services that support payments, FX, onboarding, settlement, KYC/KYB, and multi‑currency flows
Developing APIs, integrations, and service layers used across XE’s platform
Working with C#/.NET and related backend technologies
Designing data models and working with SQL and relational databases
Building and supporting cloud‑based services on AWS
Contributing to CI/CD, deployment practices, automated testing, and production readiness
Owning production health across your domain, including reliability, observability, incident response, and continuous improvement
Helping modernise legacy systems into XE’s newer platform architecture
Leading design reviews and contributing to architecture decisions
Mentoring intermediate engineers and supporting stronger engineering practice across the team
Using AI‑assisted development tools as part of your everyday workflow

What we’re looking for

You do not need to tick every box, but you will likely bring:

Strong backend software engineering experience in production environments
Solid experience with C#/.NET, or another object‑oriented backend language such as Java, Kotlin, or Go
Good SQL and relational database fundamentals
Experience designing and building APIs, services, and integrations
Strong understanding of system design and architecture
Experience with service‑oriented, microservices, or event‑driven systems
Exposure to AWS and modern cloud deployment practices
Experience writing and maintaining automated tests
Confidence working with CI/CD pipelines and production release processes
A practical approach to reliability, observability, and production support
Experience contributing to technical direction, design reviews, and mentoring
Clear written and verbal communication skills
Genuine comfort using AI‑assisted development tools as part of modern engineering delivery

Experience in payments, foreign exchange, banking, fintech, insurance, or another regulated environment would be useful, but it is not essential.

Experience with ledgers, financial data systems, partner integrations, platform migrations, caching tools such as Redis or Memcached, Jira, Confluence, Postman, or Bruno would also be valuable.

Why this role is worth considering

This is a strong opportunity for a senior backend engineer who wants:

Complex backend product and platform work, not just feature delivery
Exposure to global payments, FX, and regulated financial systems
A role with ownership of architecture, services, data, reliability, and production outcomes
The chance to help modernise a platform used across multiple international markets
A NZ‑based engineering team with global reach
A modern AI‑assisted development environment
A role where senior engineers are expected to influence, mentor, and stay close to the code

Working arrangement

The role is based in XE’s Christchurch or Auckland office with a hybrid working model. Alternatively, there is an option to work out of the Auckland office in a hybrid arrangement also.

You’ll work with local colleagues as well as global teams across XE’s wider technology function. Because XE operates internationally, there may occasionally be calls or collaboration with teams in other regions.

Benefits

XE offers: