Nimbus
A weather product spanning app UI, aggregation logic, radar, and richer context modules, built to stay dependable under messy real-world data.
SwiftUICloud RunWeather APIs
Systems, AI workflows, and internal products
Jiajia Zhang
I build product surfaces and operating systems that make complex work feel calmer, clearer, and easier to trust.
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Scroll down to learn more about my work
(01)
// Work by type
Work
I tend to work in three modes: shaping product surfaces, building internal systems, and translating analysis into decision support.
// 01
Product Surfaces
Interfaces, apps, and user-facing systems where the job is to make a fast decision feel obvious and trustworthy.
Nu
A commuter-first iOS transit app prototype focused on helping people scan options quickly and act with confidence in motion.
SwiftUITransitMapKit
// 02
Internal Systems
Operating layers, workflows, and internal tools that reduce coordination overhead and make repeat work easier to run well.
Life OS
A personal operating system for execution: structured memory, reusable workflows, project tracking, and automation that reduce daily ambiguity.
SystemsAutomationKnowledge
// 03
Decision Support
Planning and optimization work shaped into scenario comparisons, tradeoffs, and outputs that can support a real operating decision.
Mover × DTU Planning Thesis
Operations research and planning work focused on turning optimization models into decision support that a real operations team can use.
OptimizationPlanningDecision Support
(02)
// The path so far
About
My work sits between product direction and system depth. I like turning fuzzy operating problems into tools, workflows, and interfaces that teams can trust under real conditions.
2026
Product systems
Across Nimbus, I treated interface design, backend aggregation, fallback logic, and context modules as one connected product system rather than separate layers.
2026
Decision-first UX
In Nu, I focused on decision speed: helping people scan nearby options, understand departures, and act quickly without carrying extra interface noise.
2026
Planning systems
In planning and optimization work, I focus on turning complex models into scenario comparisons, tradeoffs, and decision-support tools that operators can actually use.
I work comfortably across interface, architecture, and workflow design when the problem demands end-to-end ownership.
I care about systems that remain legible after launch, especially where reliability, fallback behavior, and operational clarity matter.
I am most energized by products and internal tools that reduce ambiguity and make hard work easier to execute.
(03)
// Say hello
Contact
Open to product systems, AI workflow, and internal tooling work where clarity, reliability, and execution quality matter.