Senior Software Engineer - React

About LTi Technology Solutions

LTi Technology Solutions is a leading provider of asset finance and leasing software, purpose-built for the financial services industry. Our flagship platform, Aspire, powers the full asset finance lifecycle, from origination and credit decisioning through portfolio management, billing, accounting, and end-of-term; for banks, captives, independent finance companies, and specialty lenders across North America and internationally.

Backed by private equity and in active growth mode, LTi is making the most significant platform investment in the company's history: a ground-up re-platform of Aspire onto a modern .NET and React architecture running on Microsoft Azure. Our customers manage billions of dollars in lease and loan portfolios on Aspire, and the next generation of the product will carry that mission-critical workload forward on a foundation built for scale, extensibility, and speed of delivery.

This is a rare opportunity to join a profitable, established software company at an inflection point, where foundational engineering investment will directly shape product strategy, customer outcomes, and competitive differentiation.

Position Summary

LTi is hiring a Senior Software Engineer to build the user experience of the next-generation Aspire platform. This is a full-stack role weighted toward the front end: roughly two thirds of the work is React and TypeScript, and the balance is the .NET services and APIs that sit behind it. Enterprise asset finance software lives or dies on dense, data-heavy screens, so the product surface you build is a primary reason customers choose Aspire over the alternative.

Reporting to the VP of Engineering, this role works within a talented team of senior level developers to build out our next generation product and platform. This is an individual contributor role without direct reports.

The work is greenfield, which means fewer constraints and more ambiguity than most product development roles. The ideal candidate is comfortable owning a feature end to end, from the API contract through the interaction design, and cares about the quality of the interface itself rather than treating it as the layer that renders the data.

Essential Functions & Duties

Front-End Engineering (React & TypeScript)

• Build production features in React and TypeScript across the next-generation Aspire application, applying the project structure, routing, state management, and data-fetching patterns established for the platform
• Build the data-heavy interaction patterns that define asset finance software, including high-volume virtualized grids, complex multi-step workflows, configurable forms, and embedded reporting and analytics surfaces
• Own client-side performance in a large enterprise application, including rendering behavior under real portfolio volumes, memoization, virtualization, code splitting, and bundle discipline
• Handle real-world failure gracefully, defining loading, empty, error, and partial-data states so the experience degrades predictably rather than breaking

Design System & Component Library

• Build and extend a shared component library and design system foundation in partnership with product design and the engineering team, including theming, tokens, and documentation in Storybook or equivalent
• Hold the line on visual and interaction consistency across a large application, resolving one-off component requests into reusable patterns rather than accumulating variants
• Build to accessibility standards rather than retrofitting for them, including keyboard navigation, focus management, and screen reader behavior in complex composite controls

Full-Stack Delivery (.NET & API)

• Build the backend services and endpoints your features depend on in modern .NET, working within the domain model and bounded contexts defined for the platform
• Shape API contracts from the consumer side, contributing to the resource modeling, pagination, filtering, and error semantics that make LTi's Aspire API 2.0 standards consistent, predictable, and guessable
• Own features end to end, from data access and service logic through the interface, rather than handing off at the API boundary
• Learn the asset finance domain in depth, including contracts, assets, lessees, payment schedules, billing, and accounting, so the interfaces you build reflect how customers actually work

Quality & Craft

• Write and maintain meaningful tests at the right level, including unit tests, component tests with React Testing Library, and end-to-end coverage in Playwright or Cypress for the workflows that matter most
• Participate in code review and design discussion as a contributor of judgment, not just approval, and help evolve the standards as the team learns what works
• Partner with the team's Platform Engineer on front-end build, deployment, and observability so that quality signals reach the team before customers do
• Use LTi's AI-assisted development practices effectively and safely, including spec-driven development workflows and the existing Claude Code environment