Frontend Engineer

Descrial; Greater London; On-site; GBP 85,000 - 110,000; Full time

Job summary

Descrial is building data-dense, AI-assisted interfaces for investment professionals at its UK core team. The Front-End Engineer will craft dashboards and document-centric workflows using React, TypeScript, and a shared theming system across tenants.

You will work with AI-enabled patterns, streaming responses, and secure, scalable frontend architectures. The role emphasizes performance, accessibility, and robust testing across Jest, RTL, Cypress/Playwright, with a multi-tenant SaaS product

Qualifications

• 5+ years of front-end engineering with deep React and TypeScript; React Native experience valued.
• Strong grasp of state management patterns, front-end security, and testing discipline.
• SaaS/multi-tenant product experience; Git, CI/CD, and cloud deployment familiarity.
• Experience using AI coding tools daily and evaluating their impact.

Responsibilities

• Build complex product surfaces in React/React Native with TypeScript: advanced forms, analytics dashboards, real-time updates, and rich document views
• Build data-dense experiences properly: grid components, virtualization, CSS Grid/Flexbox layouts at scale
• Implement AI-experience patterns: streaming responses, citation and verification affordances, graceful failure states for model-backed features
• Design interfaces for agentic workflows: approval/hand-off steps, visibility of tool calls, partial-progress states, ability to interrupt/correct an agent mid-run
• Make model-backed interactions feel responsive: optimize perceived performance for longer-running calls

Skills

React

TypeScript

React Native

Frontend architecture

SaaS

Education

Bachelor's degree in engineering or computer science

Tools

Jest

React Testing Library

Cypress

Playwright

Job description

Descrial is an AI work-execution platform purpose-built for alternative investment firms and their portfolio companies and securely orchestrates proprietary data, external sources, and workflows. Descrial is an important pillar of Enterprise Intelligence Orchestration (EIO) and enables it by structuring and standardizing data while embedding domain expertise, thereby enabling faster and contextual analysis, broader coverage, and more intelligent decision-making. It is backed by TresVista's 1,800+ employees and deep domain expertise across investment diligence, research, valuation, fund administration, accounting, and data analytics. The team is small, senior, high-ownership, and in-office, with direct access to the Executive Committee.

OVERVIEW

As a Front-End Engineer on the UK core team, you will build the interfaces investment professionals live in: data-dense dashboards, document-centric workflows, and AI-assisted experiences where trust and verifiability are part of the design. The stack is React and React Native with TypeScript, a shared component system themable across tenants, and the performance discipline that data-heavy enterprise UI demands.

ROLES AND RESPONSIBILITIES

• Build complex product surfaces in React / React Native with TypeScript: advanced forms, analytics dashboards, real-time updates, and rich document views
• Build data-dense experiences properly: grid components (AG Grid / MUI DataGrid class), virtualisation, CSS Grid/Flexbox layouts that hold at scale
• Implement AI-experience patterns: streaming responses, citation and verification affordances, and graceful failure states for model-backed features
• Design the interface for agentic workflows: approval and hand-off steps, visibility of what a tool call is doing, partial-progress states, and letting a user interrupt or correct an agent mid-run
• Make model-backed interactions feel responsive: perceived-performance work for calls that take seconds rather than milliseconds

Platform and quality

• Contribute to the shared component library and multi-tenant theming system; keep per-tenant branding, permissions, and configuration clean
• Integrate securely with backend APIs: auth, role-based access, tenant context, and client-side error handling
• Write and maintain unit, integration, and E2E tests (Jest, React Testing Library, Cypress/Playwright); meet accessibility standards (WCAG 2.1)
• Profile and optimise: code splitting, lazy loading, memoisation, bundle discipline through Jenkins + SonarQube pipelines to AWS

WHO YOU ARE

Prerequisites

• 5+ years of front-end engineering with deep React and TypeScript; React Native experience valued
• Strong grasp of state management patterns, front-end security (XSS, CSRF, CSP), and testing discipline
• SaaS/multi-tenant product experience; Git, CI/CD, and cloud deployment familiarity
• You build with AI coding tools daily (Cursor, Claude Code or comparable) and have a considered view of where they help and where they do not

Good to have

• Interface work for AI-assisted or agentic products
• Micro-frontend architectures (Module Federation or comparable)
• Design-system contribution or ownership

EDUCATION

Bachelor's degree in engineering, computer science, or a related field, or equivalent experience.

WHAT WE OFFER

• You will be working closely with the Executive Committee who have over 20 years of experience in leading a company with 400+ leading clients in the alternative investment space
• Competitive compensation
• Opportunity to build something impactful for established and leading companies in the financial services industry
• Innovative, supportive, and collaborative work environment