Staff Backend Engineer

Senior Engineer - Platform (API Integrations)

LendWell · Dublin Area · Hybrid

About LendWell

LendWell builds AI-powered software for mortgage brokers across Ireland and the UK - turning a slow, document-heavy, manual process into something fast and intelligent. We're post-seed, scaling toward Series A, and the platform underneath our product is where the hardest, most interesting engineering happens.

At our heart, we're built around the technical capability to go from unsorted raw files to densely connected entity knowledge graphs -- documents, images, screenshots, audio, video. We use LLM and OCR models and sophisticated architecture to accomplish this at scale and speed.

The role

We're hiring a senior engineer to own systems and projects at our architectural frontier: a claims-based data model, a macroservice architecture, and the data and document pipelines that power the whole product.

You'll start by owning and leading a significant API integrations project end to end - so strong API design and integration skills are essential - and grow into broader ownership of a platform domain, setting technical direction within it and leading multi-engineer work.

This is deep, hardcore platform work for someone who wants real ownership over systems that matter.

What you'll do

Own and lead our API integrations project from day one - design, build, and ship

Own a domain within our platform - architecture, tradeoffs, scaling, and failure modes

Build and evolve our claims-based data modeling and macroservice architecture

Work across our Python/FastAPI + GraphQL stack, GCP-native (Pub/Sub, BigQuery, Cloud SQL)

Push forward document processing and applied LLM systems in production

Set technical direction within your area, raise the bar in design and code review, and write proposals others can act on

Mentor and grow earlier-career engineers, and take part in hiring

What we're looking for

Strong API skills - designing, building, and integrating APIs (REST/GraphQL, third-party integrations, auth, versioning, reliability) - a must-have

Deep expertise in Python and back-end systems, ideally with FastAPI and GraphQL

Strong systems-level thinking - sound judgment on data modeling, distributed architecture, tradeoffs, scaling, and risk

Hands-on experience with GCP-native infrastructure (Pub/Sub, BigQuery, Cloud SQL, or equivalents)

Experience with document processing and/or applied LLM systems in production a strong plus

Reliable execution: identifies what should be done, not just how, and manages ambiguity without hand-holding

Experience mentoring engineers and shaping how a team builds

Fintech or regulated-industry experience a plus

Pay: €60,000.00-€130,000.00 per year

Work Location: Hybrid remote in Dublin, County Dublin