Software Engineer (up to £140k)

Dex; Greater London; Presencial; GBP 90.000 - 120.000; Jornada completa

Descripción de la vacante

Dex is seeking a skilled full-stack engineer to own features from database schema design in Postgres to Django-based back-end logic and lightweight HTMX front ends. You will also work with Terraform for infrastructure, delivering reliable data pipelines from contracts to structured data for AI agents.

The role emphasizes building robust, maintainable systems with a focus on server-side rendering and relational databases, while evaluating functional language concepts as a plus.

Formación

• Track record shipping production web applications across DB, backend, frontend, and infra.
• Preference for robust tech like relational DBs and server-side rendering.
• Strong architecture grounding; exposure to functional languages is a plus; Python not required.

Responsabilidades

• Own full-stack features from schema design in Postgres and business logic in Django through to lightweight HTMX front ends and Terraform infrastructure.
• Design extraction, verification, and querying pipelines that turn dense legal agreements into reliable, structured data.
• Use modern AI development tooling daily with a disciplined focus on keeping the codebase small, simple, and maintainable.
• Build low-latency integrations that connect structured contract data into enterprise tools and frontier model interfaces.

Conocimientos

Full-stack development

Database design

Server-side rendering

Relational databases

Software architecture

Functional languages exposure

Herramientas

Postgres

Django

HTMX

Terraform

Descripción del empleo

This role is with one of Dex's trusted partner companies. We work closely with their teams to truly understand their culture, goals, and what they're looking for, so we can match you with the right opportunity and give you context about the role before you commit to a process.

The role

Most legal AI tools assume models can reliably parse messy, unstructured PDFs on the fly. This team takes the opposite view: AI agents are only as good as the verified, structured data layer beneath them. Profitable, founder-controlled, and growing purely on revenue rather than venture capital, they build the underlying contract intelligence database relied on by household enterprise brands.

The work

• Own full-stack features from schema design in Postgres and business logic in Django through to lightweight HTMX front ends and Terraform infrastructure.
• Design extraction, verification, and querying pipelines that turn dense legal agreements into reliable, structured data for natural-language agents.
• Use modern AI development tooling daily with a disciplined focus on keeping the codebase small, simple, and maintainable.
• Build low-latency integrations that connect structured contract data directly into enterprise tools and frontier model interfaces.

What You Bring

• Track record of shipping production web applications with genuine comfort across the database, back end, front end, and infrastructure layers.
• A deliberate preference for boring, robust technologies like relational databases and server-side rendering over modern front-end bloat.
• Strong conceptual grounding in software architecture; experience with functional languages like Haskell, Scala, or Clojure is a strong positive signal, while prior Python experience is not required.
• Demonstrated ability to independently take projects from ambiguity to production in an autonomous, low-overhead environment.

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