We build the tech and teams that grow your business.

When your strategy meets technology, Nellum Technologies is there. Tech consulting, custom software development, and fractional CTO leadership—at the right time, right where you need us.

What We Do


Fractional CTO

Get the expertise you need, when you need it, without the overhead or ongoing expense.

  • Organization-level tech strategy
  • Workflow, performance & tech audits
  • Merger & acquisition due diligence
  • Team scaling & restructuring
people coding

Technical Consulting

Translate business ambition into results and boost the capability of your team.

  • Project planning & management
  • Product development & strategy
  • Team leadership & training
  • AI & machine learning integrations
web browser

Custom Development

We can scope the initial project, write the custom code, and host the final product.

  • Web & mobile app development
  • Data gathering, storage & reports
  • Custom backend services & APIs
  • Infrastructure and web hosting

Based in Beautiful Halifax, Nova Scotia

Who We Are

Nellum Technologies is led by Gavin Mullen.

Gavin has been a software developer and technical team leader for 20+ years and has worked with organizations ranging from small local businesses to multi-billion dollar transnational enterprises.

At Nellum Technologies, we love to dig in, ask the right questions, and make the connections that transform business ambitions into results.

We've delivered solutions and led teams in travel & tourism, online gaming, higher education, digital & affiliate marketing, health care, and online retail.

We're excited to help you break through challenges and succeed with technology.

If it's time to grow your business or team, please reach out for a chat!

Gavin on a sailboat

Gavin - Managing Director, CTO & Lousy Sailor

Our Partners