Field Service / Task Management

FM10X Technician App

Freelance Flutter Application

Signature

Preview coming soon

Overview

FM10X gives field technicians a structured way to work through assigned jobs — from accepting a task and clearing a safety questionnaire, through a full start-to-complete lifecycle, to capturing a customer's signature at close-out.

The Challenge

Field work doesn't move in a straight line — tasks get paused, resumed, and interrupted — so the app needed a task lifecycle model that could represent every real state a job passes through without losing data at any step.

My Role

I worked on the UI development of the technician-facing application, building the task lifecycle screens, safety questionnaire flow, and signature capture at task completion.

Technical Approach

Modeled tasks with an explicit lifecycle — start, pause, resume, stop, complete — so the UI always reflects a task's true current state.
Built an accept/reject flow at task assignment so technicians confirm availability before work begins.
Implemented a safety questionnaire gate that must be completed before a task can be started.
Added issue comments so technicians can log problems encountered mid-task without leaving the workflow.
Built customer signature capture at task completion as the final step in the lifecycle.

Technical Challenges & Solutions

A linear start-to-finish task model didn't match real field work, where jobs are frequently paused and resumed.

Solution — Designed the task state machine around explicit pause and resume states rather than treating interruption as an edge case.

Capturing a customer signature needed to work reliably in the field, often with inconsistent connectivity.

Solution — Captured the signature locally at completion and synced it with the task record once connectivity was available, rather than requiring a live connection to finish a job.

Technical Architecture

A Flutter UI layer over REST APIs, modeling each task as an explicit state machine — accepted, safety check, start/pause/resume/stop, complete — rather than a linear flow. Customer signatures capture locally at completion and sync once connectivity returns, so the lifecycle never blocks on network availability.

Outcome

Delivered a technician-facing task management interface supporting the full task lifecycle, safety compliance, and customer sign-off for field service operations.