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Resume Index

Jiajia Zhang

DTU MSc Engineering graduate in Mathematical Modelling and Computation, with the degree completed in July 2026. Targeting junior product/full-stack roles around internal tools, workflow automation with human review, and operational decision support. Strongest evidence: OpsDesk, Nimbus, and the DTU × Mover thesis; Cargo Guard is supporting data-quality evidence.

Target Roles

LocationDenmark · Copenhagen · Hybrid/Remote · EU-facing teams
Work ContextInternal tools · Workflow automation · Support operations · Data quality
RolesJunior Product Engineer · Junior Full-stack · Internal Tools Builder

Project Evidence

Portfolio Builder / Product-minded Engineer

Personal Projects · Copenhagen

2025 - Present

Built job-facing portfolio systems around support automation, workflow systems, data-quality checks, and iOS product implementation. The emphasis is not feature volume, but clear problem framing, evidence, boundaries, and explainable implementation choices.

OpsDesk (opens in a new tab)AI support / operations workflow demo

Built a support/operations desk with queues, evidence packages, draft replies, approval gates, feedback memory, and audit replay. Demonstrates workflow automation with human review, traceability, and evaluation thinking.

Next.js · TypeScript · Postgres · Docker · AI workflow design

Cargo GuardData quality cockpit

Built a small Python data-checking demo for logistics records: missing fields, duplicates, stale records, invalid values, JSON run output, and an HTML report for review.

Python · JSON contracts · Data validation · HTML report

Built and structured SwiftUI weather-journal features across weather data, widget/shared settings, radar/wind features, moon illumination, and fallback behavior.

Swift · SwiftUI · WeatherKit · SceneKit · Widgets

MSc Thesis / Optimization Research

DTU × Mover · Denmark

2025 - 2026

Worked on a Mover-context depot-aware rolling decomposition thesis for multi-day last-mile planning under operational stress, focusing on feasibility, runtime budgets, fallback behavior, and guarded search.

Depot-aware rolling decision supportLast-mile planning

Designed and evaluated rolling architecture, Pareto guards, SDAP runtime framing, and depot-pressure search, separating operational feasibility, repeatability, and academic search-depth evidence.

Julia · Vehicle routing · ALNS · Optimization · Experiment design

Earlier Engineering Foundation

Dehui, Deloitte, DTU, GDUT · China / Denmark

2018 - 2026

Earlier development and coursework foundation: Java/Spring backend, JavaScript/Vue frontend, computer-science and industrial-engineering background, plus DTU training in data, optimization, and systems modeling.

Backend / frontend foundation

Practical foundation across Java/Spring, JavaScript/Vue, SQL/API work, and engineering coursework for junior full-stack, internal-tools, and business-systems roles.

Java · Spring · JavaScript · Vue · SQL · REST APIs

Capability Stack

EngineeringTypeScript · Next.js · React · Node.js · Python · Java/Spring · SQL · REST APIs
Product / SystemsInternal tools · Workflow design · Approval gates · Audit/replay · Feedback loops
Data / OptimizationData quality · JSON contracts · Logistics data · Julia · Vehicle routing · Experiment design
Mobile / DeliverySwift · SwiftUI · WeatherKit · Docker · GitHub Actions · Oracle deploy

Education

Technical University of Denmark (DTU)

MSc, Mathematical Modelling and Computation · Denmark

Sep 2023 - Jul 2026