Fullstack Developer

We are looking for aSenior Full Stack Developerwith strong expertise inJavaScript/TypeScriptand hands-on experience acrossmodern frontend and backend technologies. The ideal candidate should be comfortable building scalable, high-performance web applications and collaborating closely with product, design, and engineering teams.

Key Responsibilities

• Design, develop, and maintainscalable full-stack web applications.
• Build responsive and performantfrontend applications using React.js.
• Develop and maintainbackend services using Node.js and Express.js.
• Design and optimizeSQL and NoSQL databasesto ensure data integrity and performance.
• Build, consume, and documentRESTful APIs(GraphQL exposure is a plus).
• Write clean, maintainable, and testable code following best practices.
• Participate incode reviews, branching strategies, and release processes.
• Collaborate with cross-functional teams to translate requirements into technical solutions.
• Ensure application performance, security, and scalability.
• Contribute to CI/CD pipelines and deployment processes.

Required Technical Skills

• Strong experience withJavaScript and TypeScript.
• Expertise inReact.js, includingHooks, Context API, and state management (Redux / Zustand preferred).
• Solid backend development experience withNode.js and Express.js.
• Hands-on experience with either:
• PostgreSQL(PERN stack)
• MongoDB(MERN stack)
• Strong understanding ofSQL and NoSQL database design principles.
• Experience in building and consumingREST APIs.
• Basic knowledge ofGraphQLis a plus.
• Familiarity withORMs/ODMssuch asSequelize, Prisma, or Mongoose.
• Proficiency withGit, branching strategies, and code review practices.
• Understanding ofDocker,CI/CD pipelines, and cloud platforms (AWS).

Nice to Have

• Experience working withNext.js.
• Exposure tomicroservices architecture.
• Knowledge ofmessage queuessuch asKafka or RabbitMQ.
• Experience building or maintaininghigh-scale or multi-tenant systems.

Soft Skills

• Strong problem-solving and analytical skills.
• Good communication and collaboration abilities.
• Ability to take ownership and work independently.
• Adaptable and eager to learn new technologies.

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.

Job : Full Stack Developer

Location:Hyderabad

Mode:Hybrid

Experience : 4 +

Skills: React Js, Node Js, Javascript, AWS

We are seeking a talented Full Stack Developer to join our dynamic team. The ideal candidate should

have a strong background in Node.js, React.js, AWS, and proficient skills in JavaScript. As a Full

Stack Developer, you will be responsible for designing, developing, and maintaining web applications

throughout the entire software development lifecycle. Your expertise will contribute to the creation of

innovative solutions that enhance user experience and drive business growth.

Responsibilities:

● Collaborate with cross-functional teams to define, design, and ship new features.

● Develop server-side logic using Node.js, ensuring high performance and responsiveness to

requests from front-end components.

● Build reusable and efficient front-end components using React.js.

● Implement and maintain API integrations with third-party services.

● Optimize applications for maximum speed and scalability.

● Collaborate with other team members and stakeholders to troubleshoot, debug, and optimize

application performance.

● Stay up-to-date with emerging technologies and industry trends to ensure the best practices

are consistently applied.

● Implement security and data protection measures.

● Participate in code reviews and provide constructive feedback to team members.

● Deploy applications on AWS and manage cloud infrastructure.

Description:

● 5+ years of overall experience with 3 years of exp in React.js,Node.js

● Bachelor's degree in Computer Science, Engineering, or a related field.

● Proven experience as a Full Stack Developer or similar role.

● Strong proficiency in JavaScript and its modern frameworks (Node.js, React.js).

● Experience with AWS services and cloud infrastructure.

● Familiarity with front-end technologies such as HTML, CSS, and JavaScript

frameworks/libraries.

● Recommended Experience: Proficiency in Node.js, Typescript, React, and MongoDB.

● Knowledge of database systems (SQL, NoSQL)

● Experience with user interface design.

● Knowledge of performance testing frameworks including Mocha and Jest.

● Experience with browser-based debugging and performance testing

● Excellent problem-solving and communication skills.

● Ability to work both independently and collaboratively in a team environment.

How to Apply:

If you have a passion for backend development, possess the required experience, and are excited

about contributing to innovative projects, we invite you to apply. Please submit your resume, cover

letter, and any relevant portfolio or project samples to Anusha Kalidindi

P99soft is an equal opportunity employer, dedicated to fostering diversity and creating an inclusive

workplace for all employees.

Responsibilities:

 Work with development and product team 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, Ability to quickly pick up new areas in the product and write optimal

code taking into consideration the security and performance aspects of the product.

 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

Skills:

 Proven experience of around 4-7yrs as a Full Stack Developer.

 Should be a full stack developer who can code on cutting-edge technology stacks including

Laravel, Nodejs, Express js, Python, React, Angular, MySQL, MongoDB, Firebase, Elastic Search,

Docker, AWS etc. for our clients.

 Experience developing desktop and mobile applications

 Familiarity with common stacks

 Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML,

jQuery)

 Strong Knowledge of multiple back-end languages and on frameworks or platforms (Phython

/ Express JS / Django etc), API / Serverless services, DB Schema Definition.

 Good to have stakeholder management, team leading, team mentoring, code management

under critical problem

 Familiarity with databases (e.g. MySQL, MongoDB), web servers (e.g. Apache) and UI/UX

design

 Excellent communication and teamwork skills

 Great attention to detail and analytical skills.

 Degree in Computer Science, Statistics or relevant field

• Design and develop solutions to complex technical problems spanning the development of product features, quality validation, and deployment to customers
• Build highly scalable web applications that are designed for high performance
• Lead design and code reviews
• Work closely with senior management, Product Manager, and our team of developers.
• Contribute visibly to product quality, innovation, and customer-centric design across the engineering organization
• Lead, motivate and direct team members to build high-quality software in a fast-paced agile environment
• Actively hire the engineering & product team, & develop the existing team
• Share experiences and skills to aid team members in enhancing their professional skills and career

• 4+ years of experience building large scalable systems
• Strong experience in agile methodologies and test-driven development (TDD)
• Experience in software development using open source technologies
• Knowledge in domain-driven design, design patterns, and enterprise integration patterns
• Must have experience in delivering software via complete Continuous Integration and Continuous Delivery (CI/CD) pipeline

• A history of working on side/hobby projects or contributing to open source projects is a plus
• You have worked in a startup before

Most importantly: Be excited to learn what you don’t already know!