Data Action (DA)
is a specialist technology solutions and services provider to the challenger banking and financial services industry. With 40 years of industry experience and a vibrant team based in Adelaide, Sydney, Melbourne, and Brisbane, we proudly serve a broad client base, including customer-owned banks, credit unions, and financial services membership organisations. We offer secure and reliable core banking solutions and digital platforms that empower our clients to thrive in a competitive landscape.
Scope
As a Senior API Developer, you'll play a key role in shaping and evolving our API product suite. You'll design, build, and maintain high-quality applications and components that power critical integrations across the business. In this role, you'll tackle a mix of meaningful work: enhancing and maintaining established products while also getting the chance to design and deliver new APIs and stand-alone applications as new projects emerge. You'll work closely with a broad range of systems across DA, using your technical expertise to solve real business problems and improve how our platforms connect and scale.
Tasks & Responsibilities
* You will take responsibility for the following:
* Deliver product enhancements and bug fixes
* Review code and contribute to solution design across products and projects
* Mentor junior developers and promote high standards of quality and process
* Represent the team with internal and external stakeholders, advising on products and capabilities
* Collaborate with Architecture and DA Technical Leads to improve tooling and development practices
* Provide a professional, client-focused experience for internal and external users
* Follow SDLC processes and ensure compliance with relevant regulations and audit requirements
* Act as the Integration & Payments Product Owner delegate when required
Essential Skills & Qualifications
* Bachelor's degree in computer science, engineering, or related field (or equivalent professional experience) with at least 5 years' experience in a similar software development role
* Strong programming experience in C# and/or Java, with solid use of modern development tools and practices (IDEs, Git, CI/CD)
* Experience designing and building APIs (REST and/or SOAP) and developing cloud-based applications, particularly on AWS
* Good understanding of web, networking, database fundamentals, and secure coding practices
* Excellent communication, analytical, and interpersonal skills, with the ability to work independently, make sound decisions, and operate effectively under pressure
Desirable Skills & Qualifications
* Experience with .NET, serverless development (AWS Lambda), and container-based platforms (Docker, Kubernetes, AWS ECS)
* Experience with IIS, PowerShell scripting, and test-driven development practices
* Experience with relational databases (e.g. MS SQL Server, SAP ASE), including query optimisation and database architecture concepts
* Understanding of SOA concepts, enterprise design patterns, and production-scale systems
* Experience in the banking or financial services sector, including mentoring or supporting team members
While we appreciate all applications, only shortlisted candidates will be contacted.