Senior React Developer

Founding Engineer - LITMAS

About LITMAS

LITMAS is revolutionizing litigation with the first AI-powered platform built specifically for elite litigators. We're transforming how attorneys research, strategize, draft, and win cases by combining comprehensive case repositories with cutting-edge AI validation and workflow automation. We are a team incubated by experienced litigators, building the future of legal technology.

The Opportunity

We're seeking a Founding Engineer to join our core team and shape the technical foundation of LITMAS. This is a rare opportunity to build a category-defining product from the ground up, working directly with the founders to create technology that will transform the US litigation market.

As a founding engineer, you'll have significant ownership over our technical architecture, product decisions, and company culture. Your code will directly impact how thousands of attorneys practice law.

What You'll Do

• Architect and build core platform features using Python, Node.js, Next.js, React, and MongoDB
• Design and implement production-grade LLM systems with advanced tool usage, RAG pipelines, and agent architectures
• Build AI workflows that combine multiple tools for legal research, validation, and document analysis
• Create scalable RAG infrastructure to handle thousands of legal documents with high accuracy
• Implement AI tool chains to provide agents tool inputs
• Design intuitive interfaces that make complex legal workflows simple and powerful
• Own end-to-end features from conception through deployment and iteration
• Establish engineering best practices for AI systems including evaluation, monitoring, and safety
• Collaborate directly with founders on product strategy and technical roadmap

The Ideal Candidate

You're not just an AI engineer, you're someone who understands how to build reliable, production-grade AI systems that users can trust. You've wrestled with RAG accuracy, tool reliability, and LLM hallucinations in production. You know the difference between a demo and a system that handles real-world complexity. You're excited about applying AI to transform how legal professional’s work.

What We're Looking For

Must-Haves

• Deployed production-grade LLM applications with demonstrable experience in:
• Tool usage and function calling
• RAG (Retrieval-Augmented Generation) implementation at scale
• Agent architectures and multi-step reasoning
• Prompt engineering and optimization
• Knowledge of multiple LLM providers (OpenAI, Anthropic, Cohere, open-source models)
• Background in building AI evaluation and monitoring systems
• Experience with document processing and OCR technologies
• 3+ years of production experience with Node.js, Python, Next.js, and React
• Strong MongoDB expertise including schema design and optimization
• Experience with vector databases (Pinecone, Weaviate, Qdrant, or similar)
• Full-stack mindset with ability to own features from database to UI
• Track record of shipping complex web applications at scale
• Deep understanding of LLM limitations, hallucination prevention, and validation techniques

Tech Stack

• Backend: Node.js, Express, MongoDB
• Frontend: Next.js, React, TypeScript, Modern CSS
• AI/ML: LangChain/LlamaIndex, OpenAI/Anthropic APIs, vector databases, custom AI tools
• Additional: Document processing, search infrastructure, real-time collaboration

What We Offer

• Significant equity stake true ownership in the company you're building
• Competitive compensation commensurate with experience
• Direct impact your decisions shape the product and company
• Learning opportunity work with cutting-edge AI and legal technology
• Flexible work remote-first with a global team
• AI resources access to latest models and compute resources

Interview Process

One more thing: Our process includes deep technical interviews and fit conversations. As part of the evaluation, there will be an extensive take-home test that should expect to take at least 4-5 hours depending on your skill level. This allows us to see how you approach real problems similar to what you'll encounter at LITMAS.

Roles & Responsibilities

• You will be a key member in building modern web application platforms.
• Building user interfaces for management products
• Creating wireframes, prototypes based on the requirements.
• Building api for UI backend.
• Provide assistance in the up-gradation and maintenance of web applications.

Job Requirements

• 3 to 5 years of web development experience is required.
• Hands-on experience with api and microservice development.
• Proficiency with fundamental front-end languages such as JavaScript, HTML, CSS.
• Proficiency with JavaScript frameworks such as ReactJs.
• Proficiency with server-side languages such as NodeJs, Java, GoLang, etc.
• Exposure to wireframing and prototyping.
• Familiarity with database technology such as MongoDB.
• Good to have:
  1. Experience in UX design.
  2. Working experience on Linux environments.
  3. Working experience on Docker and Kubernetes.
  4. Working experience in microservices.
  5. Knowledge of the networking domain.

Job Description:

We are seeking an experienced Full Stack React Developer who is passionate about building and maintaining scalable mobile and web applications. The ideal candidate will have a strong background in both front-end and back-end development, with expertise in React for web and React Native for mobile development. You will work closely with our founder to implement new features, optimize performance, and ensure the highest quality user experience across both platforms.

Key Responsibilities:

• Develop and maintain the front-end of our app using React for web and React Native for mobile.

• Build and manage the back-end services and APIs to support both the mobile and web apps, including database design and integration.

• Implement responsive design principles to ensure the app works seamlessly across various devices and screen sizes.

• Optimize the app for maximum speed and scalability.

• Integrate third-party services and APIs as needed.

• Troubleshoot and debug issues to ensure the apps run smoothly on both web and mobile platforms.

Requirements:

• Proven experience as a Full Stack Developer or similar role with a focus on React and React Native.

• Strong proficiency in JavaScript, HTML, and CSS.

• Experience with back-end frameworks (Node.js, Express, Firebase etc.).

• Proficiency in database design and management (Firestore, SQL, NoSQL).

• Experience with RESTful APIs and third-party integrations.

• Familiarity with version control systems (Git).

• Knowledge of responsive design principles and mobile-first development.

• Excellent problem-solving skills and attention to detail.

• Strong communication skills and the ability to work collaboratively in a remote team environment.

Preferred Qualifications:

• Experience in building and scaling e-commerce or rental platforms.

• Familiarity with cloud services (AWS, Google Cloud, etc.).

• Understanding of CI/CD pipelines and automated testing.

• Knowledge of UI/UX design principles.

Around 4 years of experience in creating and implementing Web-based products using REST

API, Node.js, Angular/ React, any database MySQL or No SQL.

Ability to work in an Agile, fast-paced environment, and learn rapidly.

Bachelor degree in computer science, computer engineering or similar.

Experience creating front end applications using HTML5, Angular, LESS/SASS

Hands-on experience with JavaScript Development on both client and server-side

Experience with modern frameworks and design patterns, minimum two-year experience

with MEAN Full stack paradigm

Experience with cloud technologies is a plus

Writing clean, readable, and easily maintainable code.

Must have knowledge of project/task management tools like Jira

Familiarity with Version Control tools like Bitbucket, Git etc..

Basic Knowledge or experience in Testing (Unit and functional) preferred.

Build features and applications with responsive design

Understanding of UI, cross-browser compatibility, and web standards.

Good English communication skills, written and spoken.

Able to work with minimum supervision as well as perform under pressure and meet

Deadlines.

Able to work from our office in Vidyaranyapura, Bangalore.

• Own the development/improvement of products and features.
• Own the responsibility for creating a great user experience on the products and features you work on.
• Build features end-to-end: both the user interfaces and the backend APIs.
• Set technical standards and lead the team in building a world-class scalable software development process.
• Lead large-scale design updates and rollouts.
• Partner with infrastructure engineers to scale the product.
• Investigate state-of-the-art frameworks and tooling to build our next-generation architecture.
• Guide and mentor junior team members 

• 8+ years of relevant front-end development experience, previous start up experience is highly desirable.
• Experience building, running, and debugging single-page apps in a modern JavaScript framework.
• Demonstrated knowledge of React, Redux and CSSAbility to work independently as well as cross-functionally with other engineering teams and product.
• Tech Lead / Management experience.

• Experience with full-stack development.
• Experience with building APIs using spring boot.
• Experience with front-end test frameworks (Jasmine/Mocha/Jest)
• Exposure to mobile platforms

Who we are looking for 

• Total work experience of minimum 5+years in developing web-based solutions and services
• Gathering functional requirements, developing technical specifications, and project & test planning
• Designing/developing web, software, mobile apps, prototypes, or proofs of concepts (POCs)
• Apply technical expertise to challenging programming and design problems
• Resolve defects/bugs during QA testing, pre-production, production, and post-release patches
• Work cross-functionally with various Intuit teams: product management, QA/QE, different product
• lines, or business units to drive forward results
• Contribute to the design and architecture of the project
• Experience with Agile Development, SCRUM, or Extreme Programming methodologies
• Solid communication skills: Demonstrated ability to explain complex technical issues to both
• technical and non-technical audiences
• Strong understanding of the Software design/architecture process
• Experience with unit testing & Test Driven Development (TDD)
• Should have knowledge of frameworks such as VueJS, Node JS, Express JS, Grunt, Gulp, Yeoman,
• AngularJS, Backbone JS, React JS, Bootstrap (or alternatives)
• Should have expertise in efficient, minimal JavaScript on both mobile and web.

• Bachelor’s degree in Computer Science, Software Engineering, or a related discipline
• 4+ years experience working in an IT environment
• 4+ years of Object-oriented design, functional programming
• Node JS API Development (Firebase API development is a plus)
• Angular or VUE or React JS Front end Development (VUE Js Experience is a plus)
• HTML / CSS responsive development
• Experience using any database
• Experience developing in an Agile / SCRUM Environment
• Experience developing mission-critical applications
• Strong business and technical acumen
• Excellent verbal and written communication skills

• Work with data science teams ,development teams and product managers to ideate
• software solutions
• Design client-side and server-side architecture
• Build the front-end of applications through appealing visual design
• Develop and manage well-functioning databases and applications
• Write effective APIs
• Test software to ensure responsiveness and efficiency
• Troubleshoot, debug and upgrade software .
• Create security and data protection settings
• Build features and applications with a mobile responsive design
• Write technical documentation
• Work with data scientists and analysts to improve software
• Capable to handle the individual module / Project

• 2-5 years of relevant experience as a Full Stack Developer or similar role
• Experience developing Web based,desktop and mobile applications
• Familiarity with common stacks
• Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery etc).
•  Knowledge of multiple back-end languages (e.g. Java, Python,C#) and JavaScript frameworks (e.g. Angular, React, Node.js)
• Experience in React.js .
• Experience in Python Django Framework .
• Familiarity with databases (e.g. MySQL,Postgresql, MongoDB), web servers (e.g.Apache) and UI/UX design .
• Familiarity with Cloud services like AWS, GCP.
• Excellent communication and teamwork skills
• Great attention to detail
• Organizational skills
• An analytical mind