Senior Software Engineer

At Prospa, we exist to unleash the potential of small business. We are building the future of small business and simplifying cashflow by building a leading platform that helps customers make payments, fund growth and reduce admin. Join us!

The role

As a Senior backend Engineer, you’ll help build the technology that enables small businesses to move forward with confidence. You’ll work across the stack to design, build and scale intuitive, secure and reliable systems that make it easier for our customers to access the tools and funding they need to succeed.

You’ll be part of a modern, cloud‑native, microservices environment, partnering closely with Product, Design and Engineering to turn ideas into high‑quality customer experiences. You’ll take ownership of your work end‑to‑end, think customer‑first, and contribute to a team that values learning, experimentation and continuous improvement

What you will be doing

• Designing, building and shipping high‑quality product features across back‑end systems
• Owning technical problems from discovery through to production, with a focus on long‑term, scalable solutions
• Using AI‑assisted development tools (e.g. code generation, refactoring, test support) to accelerate delivery while maintaining strong engineering standards
• Collaborating with product managers and designers to deliver simple, fast and reliable customer experiences
• Ensuring systems are observable, well‑monitored, secure and resilient in production
• Keeping security, privacy and compliance front of mind throughout the SDLC
• Contributing to architecture discussions, code reviews and continuous improvement initiatives
• Sharing knowledge, experimenting with new tools and techniques, and helping lift the team around you

What you'll need to succeed

• Strong hands‑on experience with .NET
• Experience integrating back‑end applications with internal and third‑party APIs
• Solid understanding of modern software architecture patterns, including microservices and event‑driven systems
• Solid understanding of message based systems, like using NServiceBus, MassTransit, ServiceBus, RabbitMQ and etc.
• Experience working in cloud‑based environments (Azure experience is a plus). Familiarity with CI/CD pipelines, automated testing and modern DevOps practices
• A passion for clean, secure, well‑tested code and building software that makes a real customer impact
• Curiosity and openness to using AI tools to improve how you build, test and maintain software
• Experience of observability practices like datadog, OpenTelemetary is a good to have.

Don’t let a confidence gap get in the way of submitting your application. We’d love to hear from you and see if this could be a great match.

What we offer

As a busy grow getter, our benefits are here to help you be unstoppable in your mission. Whether it's a lofty career goal, investing in your family, saving the planet or simply feeling fulfilled:

• Growth: There's something for everyone including learning days, a learning allowance, leadership programs, CliftonStrengths workshops, digital learning, and biannual companywide learning weeks.
• Wellbeing: Think fitness initiatives, seasonal programs (including flu shots, massages, skin checks, wellness classes), additional "Me Days" and access to holistic EAP coaching.
• Lifestyle: Find your fit with flexible working options, top notch office facilities and diverse remote/ travel work options. You can also purchase additional leave and take up to 18 weeks paid parental leave.
• Impact: Join a business that cares and is recertified as carbon neutral. And you can tap into volunteer days, our partnership with Kiva and join a range of employee resource groups.

Why Prospa?

We're proud to be a certified Great Place to Work and recognised as a Best Workplace for Women, Best Workplace in Technology, and Best Workplace in Australia. We embrace diversity in people and ideas, fostering a collaborative, inclusive, and respectful environment where we celebrate who you naturally are.

Don't just take our word for it, check out