Principal Software Engineer - Next Generation Platform

About LTi Technology SolutionsLTi 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 expanding its product footprint, entering new geographic markets, and 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. You will work alongside a focused, experienced team and have the autonomy to build things that matter.

Position SummaryLTi is hiring a Staff Software Engineer to serve as the founding technical leader for the next-generation Aspire platform. This is a true greenfield effort: a full re-platform of Aspire onto a more modern .NET stack with a React and Type Script front end, deployed on Azure. The solution architecture, the module boundaries, the tenancy model, the build and deploy pipeline, the testing strategy, the component library, the local developer inner loop, all must be figured out and built.

That is the first task for this role.

Reporting to the VP of Engineering, the Staff Software Engineer will operate as the technical lead for the next-generation product/platform team. This is an individual contributor role without direct reports; influence comes from design authority, code that sets the standard, and the ability to make other engineers faster. You will help define the patterns, build the scaffolding, write production code across the stack, working with a small senior level team to continue building out the product, including working with a dedicated platform engineer establishing all the Dev Sec Ops  things, and a more front-end focused developer.

The scope is deliberately broad. Re-platforming a system that carries decades of asset finance domain logic is as much an exercise in deeply learning the domain as it is in engineering a solution. The ideal candidate has done this before, at least once, and knows what to avoid

Essential Functions & Duties Platform Foundation & Scaffolding Help define the reference architecture for the next-generation Aspire platform, including service topology, module and bounded-context boundaries, tenancy model, and the interaction patterns between front end, API, and domain layers

Build the initial scaffolding the rest of the organization will build on, including solution structure, project templates, dependency injection and configuration conventions, cross-cutting concerns (authentication, authorization, tenant context, logging, error handling, background processing, database migrations), and reusable libraries

Partner to establish the local developer experience and inner loop: containerized dependencies, seed data, one-command environment setup, fast test execution, and clear documentation that lets a new engineer ship a meaningful change within their first week

Help stand up CI/CD and infrastructure-as-code from zero, including build and deployment pipelines, environment provisioning (Bicep or Terraform), branching and release strategy, PR quality gates, and automated promotion across environments

Author and maintain Architecture Decision Records (ADRs), coding standards, and design guidelines, and establish the lightweight design review process by which they evolve

Backend Engineering (.NET on Azure)
Design and build backend services…