specialized tech talent

The ExThron story: how a failed proposal became a construction management platform

How a LinkedIn connection, a project pivot, and real field challenges led Eximus to build ExThron for EDEMCO's electric tower construction operations.

Andrés Marín · 12/23/2025

Why this matters

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What the article covers

It started with a LinkedIn message. Through the platform we connected with Juan Gabriel Pulgarín, and through him we reached EDEMCO — our first client under a full product design and build model. Together, we launched a project that would change how electric tower construction challenges are handled.

The initial proposal didn't fit

Early in the engagement, we realized the original proposal didn't meet the end user's needs. The construction processes we had modeled were rigid and predefined. But when we sat down with the people who actually ran the work in the field, we understood that those processes were inherently flexible and constantly evolving.

That was the turning point: instead of forcing the model or walking away, we decided to design an application that let the client configure their own activity workflows — so they could shape the construction process dynamically, without depending on us for every change.

A workflow engine that adapts

We built a WorkFlow engine that allowed the end user to make unlimited changes to the construction process definition. Each project could match its own operational reality without requiring Eximus to reconfigure anything.

That technical breakthrough turned a failing proposal into a working product.

Challenges along the way

During development and rollout, we faced a series of complex problems that had to be solved in motion:

  • Migrating data from Excel spreadsheets — years of operational records that needed to move into a structured platform.
  • Unlimited photo storage — every construction milestone required photographic evidence, and volume grew fast.
  • Server timezone inconsistencies — a technical issue that caused data mismatches and had to be resolved at a deep level.
  • Colombian national ID card scanning — to register field worker attendance, which forced a significant application update in the middle of deployment.

Going live

During rollout, we encountered natural resistance from users — as happens with any field tool change. But the system's adaptability and the team's commitment to continuous improvement made the transition successful.

What ExThron delivers today

Since going live in June 2021, EDEMCO has accumulated through ExThron:

  • 150,000 worker attendance records.
  • 9,000 daily progress entries.
  • 400 stored project support photographs.

These are real operational numbers, not a proof-of-concept.

What the client says

Eximus's talent and professionalism are evident, with an organized and committed team that consistently seeks high-quality results. The company stands out not only for its current performance but also for anticipating and preparing for changing market demands.

Juan David Martinez, EDEMCO

The takeaway

ExThron didn't come from a perfect brief. It came from listening to the user, accepting that the original plan didn't work, and building something that actually solved the problem. That's how Eximus approaches product development: with judgment, adaptability, and commitment to the outcome.

Next step

If you manage infrastructure projects and need real control over progress, costs, and field teams, we can help. Request a call or explore how we approach Business Software Development.

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