Ten Mile Square Technologies, LLC. · 18 hours ago
Senior UX Engineer with Full Stack TypeScript
Arlington, VA
Full-time
Onsite
Senior Level
$184K/yr - $184K/yr
5+ years expTen Mile Square Technologies is a high-end technology consulting firm based in the Northern Virginia area, seeking a talented Senior UX Engineer with full-stack TypeScript skills. The role involves developing a greenfield web front-end for a personal loan platform, collaborating with UX/UI designers, and leading technical initiatives while optimizing user experiences.
ArchitectureInformation Technology
Responsibilities
Design and implement a high-performance mobile-first, browser-based customer journey through complex multi-step wizard flows that are resumable, stateful, tolerant of refresh, back navigation, intermittent connectivity, and are driven by server-side journey decisions
Design composable, reusable component patterns and author-friendly experiences that let UI, marketing, and content teams build pages quickly and accurately
Optimize for low-bandwidth and constrained device environments (e.g., Core Web Vitals, prefetching strategies, cache management, graceful degradation, rapid screen presentation)
Working knowledge of responsive design principles and experience with production graphics, image manipulation, typography, layout and color
Translate UI/UX design wireframes, mockups, and prototypes (from tools like Figma, Adobe XD) into clean, maintainable, and responsive code using modern front-end technologies
Collaborate directly with UX/UI designers to provide feedback on design feasibility, suggest improvements for better usability/performance, and iterate on prototypes
Enforce contract-driven UI development, including typed APIs, schema validation, principles of reuseable software, and clean separation between screen components and journey orchestration logic
Implement operationally observable UI with client-side instrumentation that captures step performance, abandonment signals, and failure modes to support continuous optimization and inform stakeholders
Write unit, integration, and UI‑automation tests. (I think the important thing here is the candidate will be familiar with E2E tests)
Leverage AI/agentic tools (Figma MCP, Code Connect, v0, Claude Code) to accelerate iteration and automation
Understand context, domain, technical requirements, and constraints in order to recommend UI technologies
Work effectively with Apollo GraphQL back-end services
Work with tech leads, designers, and product managers to help determine functional requirements for the system
Contribute as member of an Agile team and promote effective Agile practices
Proactively collaborate with the greater Ten Mile Square team on development and knowledge sharing
Always represent yourself and Ten Mile Square with integrity, expertise, and value
Maintain the confidentiality of our clients on an ongoing basis
Qualification
Required
5 years of software development experience including 2 years of modern UX frameworks
1 year of experience working with GraphQL
1 year of experience developing and deploying on AWS
Working knowledge of SQL
Working knowledge of Github Actions
Full application stack development experience: front-end to persistence
Full software lifecycle participation: requirements to post-implementation
Linux command line
Be passionate about what you do
Demonstrate the ability to learn new technologies and concepts quickly
Be always alert and detail-oriented
Express high integrity and quality of work ethic
Be self-motivated to proactively identify and solve problems
Have excellent communication skills – within the team and with clients
Benefits
100% company paid medical, dental, and vision insurance (including family)
100% company paid individual short- and long- term disability
100% company paid vision insurance
Company
Ten Mile Square Technologies, LLC.
When the answer isn’t obvious, it’s time to call in Ten Mile Square.
11-50 employees
Funding
Current Stage
Early StageCompany data provided by crunchbase