Senior Developer

For our business, for clients, and for you

As part of the Apex Group ,this position will be part of PAXUS team.

Within apex Group, PAXUS is a specialist financial services technology provider delivering enterprise‑class software solutions to the global funds administration industry. Supports investment managers, administrators, and asset owners with innovative, reliable, and highly configurable platforms.

We value individuals who demonstrate strong technical capability, ownership, collaboration, and a genuine interest in financial markets and enterprise software.

Position Overview

Software Developers play a critical role in the delivery and evolution of PAXUS’s core product suite within the Funds Administration industry. PAXUS is seeking a mid-Senior level professional who will be responsible for designing, developing, and maintaining high‑quality software solutions that support global clients and strategic product objectives.

As a senior member of the development team, the role contributes technical leadership, mentors other developers, and works closely with Product, Business Analysis, and Support teams across the APAC region to ensure reliable, scalable, and secure solutions are delivered on time.

The position is based in Sydney, reporting to the CTO (Sydney), with flexible working arrangements available.

Position Responsibilities

Software Development & Delivery

Design, develop, test, and maintain high quality software solutions aligned to business and product requirements.

Contribute to the ongoing development of the PAXUS product suite, including client facing portals and internal systems.

Ensure solutions are scalable, secure, maintainable, and performant.

Translate functional and non functional requirements into robust technical designs.

Participate in code reviews, technical discussions, and architecture decisions.

Technical Leadership & Best Practice

Provide technical guidance and mentoring to developers within the team.

Promote and apply modern software engineering best practices, including clean code, automated testing, and CI/CD.

Contribute to improving development standards, frameworks, and deployment processes.

Support DevOps practices using Azure DevOps and cloud based tooling.

Assist with production support, root cause analysis, and ongoing optimisation.

Collaboration & Stakeholder Engagement

Work closely with Product Managers, Business Analysts, QA, and Support teams to deliver high quality outcomes.

Participate in client consultations where technical input is required.

Contribute accurate estimates, status updates, and risk identification to project delivery.

Person Specification (qualifications, experience, skills and knowledge required)

Essential Qualifications & Skills

Bachelor’s degree in Computer Science, Software Engineering, or a related discipline.

10+ years of professional software development experience.

3+ years operating in a mid-senior or lead developer capacity.

Strong experience with enterprise grade, client facing applications.

Technical proficiency in:

C#, .NET /.NET Core, ASP.NET

SQL Server and relational database design

React, TypeScript, and modern front‑end development

Desired Experience:

Git‑based version control

CI/CD pipelines

Azure DevOps

Secure web application development

Solid understanding of software development lifecycle (SDLC) and agile methodologies.

Strong analytical, problem solving, and debugging skills.

Essential Soft Skills

Excellent written and verbal communication skills.

Ability to collaborate effectively across distributed, cross functional teams.

Strong sense of ownership, accountability, and professionalism.

Ability to explain technical concepts to non technical stakeholders.

Desirable (Highly Regarded)

Commercial experience within the Funds Administration, Financial Services, or Investment Systems domain.

Experience with Blazor and MudBlazor

Exposure to REST APIs, IIS, and Azure infrastructure

Experience using JetBrains Rider or similar IDEs

Prior experience working in a global or matrix organisation

Postgraduate studies in Computer Science or Software Engineering

Additional information:

We are an equal opportunity employer and ensure that no applicant is subject to less favourable treatment on the grounds of gender, gender identity, marital status, race, colour, nationality, ethnicity, age, sexual orientation, socio-economic, responsibilities for dependants, physical or mental disability. Any hiring decision are made on the basis of skills, qualifications and experiences.

We measure our success as a business, not only by delivering great products and services and continually increasing our assets under administration and market share, but also by how we positively impact people, society and the planet.

For more information on our commitment to Corporate Social Responsibility (CSR) please https://www.apexgroup.com/corporate-social-responsibility/

Disclaimer: Unsolicited CVs sent to Apex (Talent Acquisition Team or Hiring Managers) by recruitment agencies will not be accepted for this position. Apex operates a direct sourcing model and where agency assistance is required, the Talent Acquisition team will engage directly with our exclusive recruitment partners.