Remote AI Agent Platform Engineer Freelance

Outlier; Sydney; Remote; AUD 120,000 - 160,000; Full time

Job summary

Outlier is seeking a senior technical expert to own the ongoing Sitefinity-based development for a major enterprise client. The role is fully remote within Melbourne time zones, with some US‑based collaboration and a 12-month contract with potential renewal.

You will lead backend development using .NET/C#, build widgets and templates, and ensure production stability across Azure-hosted services.

Qualifications

• Must have Progress Sitefinity experience.
• Significant commercial experience developing backend applications with .NET and C#.
• Strong experience supporting enterprise web applications and established production environments.
• Hands-on experience with Microsoft Azure, particularly Azure App Services.
• Proven ability to troubleshoot unfamiliar systems and resolve complex production issues independently.
• Experience working with Azure DevOps or a comparable development workflow and ticketing platform.
• Strong stakeholder communication skills and confidence working directly with enterprise clients.
• Ability to work autonomously while remaining closely connected to a distributed delivery team.
• Exposure to Kentico, Contentstack or Contentful will also be considered.
• Exposure to Marketo or Microsoft Dynamics would be beneficial.

Responsibilities

• Develop and support Sitefinity applications using .NET and C#.
• Deliver backend enhancements and new functionality across established enterprise websites.
• Build and modify widgets, page templates, integrations and supporting application components.
• Investigate and resolve website defects and business-critical production issues.
• Manage Azure DevOps tickets from initial investigation through to resolution.
• Support applications hosted in Microsoft Azure, including Azure App Services.
• Collaborate with US-based project managers, developers and digital specialists.
• Partner directly with Melbourne-based marketing and digital stakeholders to understand requirements.
• Participate in client stand-ups and communicate clearly across Australian and US time zones.
• Provide senior technical ownership as the consultancy expands its Melbourne development capability.

Skills

Backend development

Enterprise web apps

Autonomy

Debugging complex systems

Tools

Progress Sitefinity

.NET

C#

Azure App Services

Azure DevOps

Kentico

Contentstack

Contentful

Job description

Job Description

This is: the jobJoin a global digital experience consultancy as its senior technical presence in the Melbourne time zone, supporting the established digital environment of a major enterprise client.

This is not a greenfield build. You will take ownership of the ongoing development, enhancement and production support of a business-critical Sitefinity environment, working across backend functionality, integrations, widgets and templates.

The position is fully remote within Melbourne and offered as an initial 12-month contract with potential for annual renewal. You will primarily work Melbourne business hours, with occasional meetings involving the US-based delivery team.

This is: what you'll do

• Develop and support Sitefinity applications using .NET and C#.
• Deliver backend enhancements and new functionality across established enterprise websites.
• Build and modify widgets, page templates, integrations and supporting application components.
• Investigate and resolve website defects and business-critical production issues.
• Manage Azure DevOps tickets from initial investigation through to resolution.
• Support applications hosted in Microsoft Azure, including Azure App Services.
• Collaborate with US-based project managers, developers and digital specialists.
• Partner directly with Melbourne-based marketing and digital stakeholders to understand requirements.
• Participate in client stand‑ups and communicate clearly across Australian and US time zones.
• Provide senior technical ownership as the consultancy expands its Melbourne development capability.

This is: what you'll need

• Must have Progress Sitefinity experience
• Significant commercial experience developing backend applications with .NET and C#.
• Strong experience supporting enterprise web applications and established production environments.
• Hands‑on experience with Microsoft Azure, particularly Azure App Services.
• Proven ability to troubleshoot unfamiliar systems and resolve complex production issues independently.
• Experience working with Azure DevOps or a comparable development workflow and ticketing platform.
• Strong stakeholder communication skills and confidence working directly with enterprise clients.
• Ability to work autonomously while remaining closely connected to a distributed delivery team.
• Experience with Kentico, Contentstack or Contentful will also be considered.
• Exposure to Marketo or Microsoft Dynamics would be beneficial.

This is: the perks

• Become the senior Melbourne technical resource supporting a major global enterprise environment.
• Take genuine ownership of development and production issues rather than solely delivering backlog features.
• Work remotely during Melbourne business hours while collaborating with an experienced US digital delivery team.
• Build valuable enterprise experience across .NET, Sitefinity, Azure and digital experience technology.