Application Architect

Overview

We are seeking an experienced Application Architect to develop the functional, technical, and architectural blueprint for a next-generation water measurement data dashboard. The platform will give internal staff, partner organizations, and the public a single place to access, visualize, analyze, quality-control, and manage data from roughly 1,200 active monitoring sites.

The solution will support desktop, tablet, and mobile access, provide intuitive visualization and analytics, enable internal observation entry and QC workflows, deliver public-facing published data, and integrate with the HydroServer platform and existing technology investments.

This engagement covers discovery, requirements gathering, solution architecture, UX refinement, implementation planning, and cost estimation. Production development, implementation, migration, and system replacement are out of scope.

What You'll Do

• Partner with business and technology stakeholders to establish a shared vision for the future-state platform and analyze business, technical, and integration requirements

• Assess legacy dependencies and recommend incremental modernization approaches that minimize disruption, including the Strangler Fig pattern

• Review and refine existing personas, workflows, and Figma mockups, then deliver high-fidelity, implementation-ready UX designs

• Define the overall application architecture, technology stack, and cloud deployment approach on Google Cloud Platform

• Design integrations using SensorThings APIs, HydroServer APIs, and HydroServerPy, along with GIS and mapping integrations

• Recommend authentication and authorization, API management, monitoring, security, logging, scalability, and governance strategies

• Evaluate modernization of the existing MapServer application, including migration from ArcGIS Maps SDK for JavaScript 3.x to 5.x

• Assess opportunities for AI capabilities in line with organizational AI policies

• Build the implementation roadmap: an actionable backlog, phased milestones and release plans, cost estimates using cone-of-uncertainty methods, and a training and knowledge transfer plan

• Ensure recommendations support ADA compliance, responsive design, cross-browser compatibility, scalability, and data security and privacy

Deliverables

• Solution Architecture Document with system context, component, deployment, and data flow diagrams

• API integration specifications and security architecture documentation

• Refined Figma designs, high-fidelity dashboard mockups, and user workflow documentation

• Implementation backlog, phased roadmap, project schedule and milestones

• Cost estimation model and recommended development, deployment, and transition approach

What You Need

• Enterprise solution and software architecture experience, including web application and cloud architecture

• UX/UI design grounded in user-centered design principles

• Experience with dashboard and data visualization platforms

• Requirements gathering, business analysis, and technical roadmap development

• API architecture, integration design, and security architecture experience

• Agile delivery experience and strong cross-functional stakeholder engagement

Nice to Have

• Water resources, environmental, scientific monitoring, or time-series data platforms

• GIS-enabled web applications, ArcGIS Maps SDK for JavaScript, geospatial integration, and MapServer solutions

• React, Node.js, CI/CD pipelines, and GitHub-based development workflows

• Google Cloud Platform, the HydroServer ecosystem, HydroServer APIs, and SensorThings architectures

• Enterprise identity and access management (IAM) platforms and single sign-on integration

• Large-scale legacy modernization, digital transformation, and enterprise architecture strategy