Intermediate UI Developer; React to build and maintain internal data platform supports workflows, approvals

Job in Calgary, Alberta, T3S, Canada

Listing for: S.i. Systems

Contract position
Listed on 2026-01-29

Job specializations:

Software Development
Web Developer, Data Scientist, Software Engineer

Position: Intermediate UI Developer (React) to build and maintain a internal data platform that supports workflows, approvals,

Our oil and gas client is seeking an Intermediate UI Developer (React) to build and maintain a internal data platform that supports workflows, approvals, monitoring, and decision-making

Candidate will be in-office 5 days/week in downtown Calgary

Must Haves:

5+ years of UI development experience in React with a focus on UX/UI

Experience managing server state (
React Query
, Redux
Toolkit
, Zustand
, etc.)

Solid understanding of async UI behavior (loading, retries, partial failure)

Experience using Type Script in real production codebases

Experience in the Oil and Gas Industry

Nice to Haves:

Experience with industrial, energy, or operations software

Exposure to event-driven systems

Excellent written and verbal communication skills

Responsibilities:

React UI for dashboards, tables, and workflows

Turn complex domain concepts into clear, usable UI

Forms and review flows (approve / reject / override)

Data-dense views where accuracy and clarity matter

APIs that are event-driven and change over time

Work closely with backend engineers on API shape and UI behavior

Geospatial mapping, plots and advanced visualizations

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