Senior TypeScript Engineer

Mitratech

Location: United Kingdom
Job Type: full-time
Salary: Unknown
Posted: December 15, 2025

Job Description

At Mitratech, we are a team of technologists focused on building world-class products that simplify operations in the Legal, Risk, Compliance, and HR functions. We are a close-knit, globally dispersed team that thrives in an ecosystem that supports individual excellence and takes pride in its diverse and inclusive work culture centred around great people practices, learning opportunities, and having fun! Our culture is the ideal blend of entrepreneurial spirit and enterprise investment, enabling the chance to move at a rapid pace with some of the most complex, leading-edge technologies available.

For over 35 years, the experts at Mitratech have been focused on solving the complex needs. Today, we serve 20,000 client companies of all sizes globally, representing 30% of the Fortune 500 and over 500,000 users in over 160 countries.

As we continue to grow, we’re always looking for resourceful, enthusiastic, and fresh perspective. Join our global team and see what makes Mitratech a truly exceptional place to work!

Job Overview

HotDocs document automation helps thousands of professionals to maximize efficiency, minimize risk, enhance compliance, and improve quality. Our document generation tool slashes the time it takes to draft, assemble, and distribute new documents. The automated workflow protects against errors and ensures perfectly formatted and accurate documents every time. Using our powerful APIs, HotDocs can be integrated with existing processes or used to assemble documents at scale.

As a senior team member, you will be actively involved in mentoring colleagues, driving architecture decisions, developing and improving features, and working directly with stakeholders to deliver world-class products. In addition, your efforts will be recognized and used by a large and growing community of HotDocs users across the globe in a wide variety of industries.

Our team's goal is to deliver continuous value to customers and the business in a sustainable, quality driven environment. As we are continuously evolving our software code base, tools and agile processes, our work takes on a combination of coding and review, changes to tools and systems and adjustments to our infrastructure and test automation.

Essential Duties & Responsibilities:

HotDocs pushes the boundaries of what is possible in a browser-based application. You will be involved in the development of a key component of our document automation solution and enabling a unification of our client-side and server-side processing, using a variety of technologies including TypeScript and Node.js.

In your career you will have worked in an agile team to deliver software of significant complexity. You will be happy working on complex domains or looking at solutions in their wider context.

As part of a cross-skilled team, you will:

Write code every day to solve business problems.
Help to drive the engineering quality within the team.
Collaborate with the Team Lead and Product Owner to refine and deliver the best possible solutions.
Interact with the rest of the business to gain deep understanding of our products, customers, and users.

Requirements & Skills:

Successful candidates will have significant professional experience within a software engineering team and will be:

Capable of delivering robust quality solutions with a high level of autonomy.
Excellent at technical communication and collaboration.
Excited to write a complex browser-based application.
Passionate about great UX and UI.

Experience in the following is essential:

JavaScript, TypeScript
SPA frameworks / libraries, preferably React
Building complex web applications
Git

Experience in the following is desirable:

Azure DevOps
Docker
Node.js

🎯 Who is this job for?

This position is ideal for a senior TypeScript engineer who wants to build complex browser-based applications, influence architecture decisions, and mentor others while working with React, Node.js, and modern tooling. It suits someone who enjoys solving intricate product challenges, values high-quality engineering practices, and wants to contribute to a widely used document automation platform where frontend and backend TypeScript come together to deliver robust, scalable solutions.

💬 Potential Interview Questions

What is your experience building complex SPA applications with TypeScript?
I’ve built and maintained large-scale SPAs using TypeScript and React, leveraging strict typing, generics, and type-safe APIs to reduce runtime bugs and improve long-term maintainability.
How do you structure a TypeScript/React codebase for a complex browser-based application?
I use a feature- or domain-based folder structure, separate UI components from business logic (hooks/services), centralize shared types and utilities, and enforce strict TypeScript settings for consistency.
How do you ensure type safety across client-side and server-side code in a TypeScript/Node.js stack?
I share type definitions or schemas between frontend and backend (e.g., via a shared package), generate types from API schemas when possible, and validate data at boundaries to keep both sides in sync.
What is your approach to state management in large React applications?
I keep state as local as possible, use React hooks and context for shared concerns, and introduce a dedicated state management library only when complexity requires it, always keeping types accurate and well-defined.
How do you optimize performance in a heavy, browser-based document automation UI?
I use memoization (React.memo, useMemo, useCallback), virtualize large lists or document views, split code with dynamic imports, and profile with browser and React DevTools to target real bottlenecks.
How do you ensure code quality and consistency within a senior engineering role?
I enforce coding standards with ESLint/Prettier, maintain high test coverage, perform thorough code reviews focused on clarity and design, and advocate for refactoring when complexity grows.
Describe your experience with Node.js in the context of a TypeScript-based system.
I’ve built Node.js services using TypeScript, including shared logic with the frontend, structured projects with clear module boundaries, and used tooling like ts-node or build pipelines for production-ready output.
How do you collaborate with product owners and stakeholders on complex features?
I translate business requirements into technical designs, clarify edge cases early, propose incremental delivery plans, and keep a tight feedback loop through demos and open communication.
What’s your experience with Git in a collaborative engineering environment?
I follow a feature-branch workflow, write clear commit messages, use pull requests with reviews for every change, and keep branches small and focused to simplify merging and rollback.
How do you approach mentoring and elevating engineering quality within your team?
I lead by example with clean, well-tested code, provide constructive and educational code reviews, pair-program on complex tasks, and share best practices through docs, demos, and informal tech sessions.

📋 Job Summary

Mitratech is hiring a UK-remote Senior TypeScript Engineer to help build and evolve HotDocs, a browser-based document automation platform used by thousands of professionals worldwide. You’ll design and develop complex web applications using TypeScript, JavaScript, React (SPA), and Node.js, unifying client- and server-side processing to deliver fast, reliable document generation at scale. In this senior role, you’ll write production code daily, drive engineering quality and architecture decisions, and mentor teammates in an agile, product-focused environment. Join a global, well-established company serving 20,000+ clients where you can combine modern tech, meaningful impact in Legal/Risk/Compliance/HR, and a supportive, learning-oriented remote culture.