Black Nova are supporting one of our portfolio companies. Prefactor is the Native MCP Identity Layer for modern SaaS - We're hiring Engineers.

• Mid-level and Senior positions
• Location: Sydney or Melbourne (Hybrid working 1 day a week)
• Salary: $120-170k base + super + ESOP
• Tech Stack: MCP, Elixir, JavaScript, AWS, Docker and more

Prefactor was founded to solve the identity challenges of the AI era; where users are AI Agents, APIs, and automation. Prefactor provides a new foundation: first-class, auditable, version-controlled identity for AI Agents and automation. It’s infrastructure for the next era of software.

Why is it an exciting time to join Prefactor as an Engineer?

• Define a New Category: You'll be building foundational infrastructure for AI agents.
• Solve Unanswered Questions: This is a rapidly evolving, undefined space. You will be at the forefront, contributing to what could become the new industry standard for interaction and automation via Model Context Protocol (MCP).
• Build in a Moving-Target Environment: The MCP spec is fast-moving. This role requires an experienced, pragmatic, and passionate engineers who thrive on technical challenges and innovation.

We're hiring Engineers  
  
Here's some things you can help us achieve:

• End-to-End Ownership: Independently design, build, and deploy a completely new, major feature of the product from scratch. You'll leave a significant personal stamp on the product.
• Become the Expert: Develop deep expertise in core areas of our system, becoming the go-to person for those components.
• Technical & Cultural Contributor: Actively contribute to the overall tech strategy and shape a culture of innovation, speed, and quality.
• Some Examples of things you can build with us:
  
  • Model and build complex workflows for agent authorisation.
  • Develop a robust audit system to monitor all agent activity.
  • Engineer systems for ingesting, processing, and securely storing large datasets.
  • Build and manage a highly stable and scalable decision and authorisation engine.

The Skills and Experience you'll bring  
  
We're looking for Senior Engineers who can bring as much experience as possible in these areas:

Technical Skillset

• Ideal: Experience with Elixir and an interest in the MCP space is highly beneficial but not essential.
• Back-End Experience: Strong proficiency in one or more back-end languages like Go, Ruby, Scala, Rust, or similar. A mixed experience is highly valued.
• Cloud & Infrastructure: Hands-on experience with AWS. You've had responsibility for deploying and managing applications and infrastructure.
• Proficient with Docker.
• Confident with JavaScript and building UIs

Project Experience

• Stage-Appropriate Skillset: You thrive in early-stage, small-team environments. Comfortable making decisions with autonomy, fixing what you've built, and building for the future.
• Proven Backend Product Experience: Experience building complex, back-end-heavy products. You simplify complexity and communicate it effectively.
• Project Ownership: Demonstrable experience owning projects end-to-end, from ideation to deployment and stakeholder management.
• Pragmatic: You are an experienced, pragmatic engineer who provides a healthy pushback on assumptions and isn't swayed by hype.

Additional information

• Build the foundational infrastructure for AI agents and MCP.
• Contribute to the overall tech strategy and help shape our culture.
• Hybrid working, huge growth potential and equity.