CareerPlan

Principal Software Engineer

United States, Washington, RedmondFull-time2026-10-13 → 2026-11-10

Core

Own and lead the architecture and technical direction of the F&O UI layer, designing secure, compliant, reliable, performant, scalable, and accessible UI architecture for the end-to-end product stack.

Role type

Principal Software Engineer (UI Architecture & Technical Leadership)

Builds

F&O UI layer, MCP Apps, and AI-enabled application experiences

Domain

Financial Services (F&O) / Software Architecture

Deliverable

production ML models | product features

Required skills

UI architecture design, technical leadership, cross-functional partnership, emerging technology evaluation, prototyping, technical design reviews, dependency management, risk identification, solution alignment, engineering mentorship, best practices establishment, maintainable software development, security engineering, reliability engineering, performance optimization, scalability design, accessibility design, large-scale web platform architecture, AI and agent-based application patterns

Preferred skills

C, C++, C#, Java, JavaScript, Python

Technologies

C, C++, C#, Java, JavaScript, Python

Responsibilities

Lead architecture and technical direction of the F&O UI layer, design secure and scalable UI systems, partner with product and design teams to translate requirements into technical designs, evaluate and prototype emerging technologies including AI patterns, lead technical discussions and design reviews, mentor engineers and establish best practices

Seniority

Principal, hands-on IC with strategic leadership