Diana Niehues

Software Engineer II — Uber

2023 – 2026

Worked on Uber's Stored Value / Uber Cash platform, building and maintaining distributed backend services responsible for wallet balances, rewards, and financial transactions across multiple internal systems.
Contributed across 30+ services in Uber’s financial products platform, including stored value wallet, rewards, stored value money movement, and end-user marketing systems.
Built core backend infrastructure supporting the launch of a co-branded credit card product, implementing systems for user pre-approval eligibility, transaction reversals, and negative balance handling.
Implemented a caching solution for stored-value balance read operations, reducing request latency by an order of magnitude in a critical UX flow by bypassing a latency-intensive database read.
Improved reliability and observability of maintained services by introducing more metrics, centralized exception handling, and service refactors improving null safety and system robustness.

Tech: Java, Go, Kafka, Thrift, Protobuf, Avro, distributed systems, microservices, Git, Bazel.

Senior Software Engineer — Tremendous

2022

Developed improvements to a consumer-facing rewards platform frontend used to distribute digital payouts and incentives.
Implemented UI enhancements improving performance and usability of the rewards redemption flow.

Tech: React, TypeScript, Ruby on Rails.

Senior Software Engineer — Guideline

2022

Built internal infrastructure tooling supporting a large monolithic retirement-platform application used by multiple product teams.
Developed platform abstractions used to standardize integrations and reduce duplication across engineering teams.

Senior Software Engineer — Jaya

2020 – 2022

Led design and implementation of new features in a large healthcare e-commerce platform.
Served as a technical reference for the team, performing architectural reviews and mentoring engineers.
Helped scope and estimate engineering work and guide technical decisions for upcoming projects.

Tech Lead — Jaya

2019 – 2020

Led a team of five engineers delivering new platform capabilities under tight deadlines.
Worked closely with product management to prioritize roadmap items and plan engineering execution.
Initiated and prioritized technical debt remediation efforts improving platform maintainability.

Earlier Career

2015 – 2019

Full-stack engineer working primarily with Ruby on Rails and JavaScript building web platforms, CRM systems, and monolithic architectures.

Companies:

Work Experience