Fullstack 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.

Who we are

We are Fluxon, a product development team founded by ex-Googlers and startup founders. We offer full-cycle software development: from ideation and design to build and go-to-market. We partner with visionary companies, ranging from fast-growing startups to tech leaders like Google and Stripe, to turn bold ideas into products with the power to transform the world. 

The role is open to candidates based in Hyderabad, India

About the role

As a Senior Software Engineer at Fluxon, you'll have the opportunity to bring products to market while learning, contributing, and growing with our team.

You'll be responsible for:

• Driving end-to-end implementations all the way to the user, collaborating with your team to build and iterate in a dynamic environment
• Engaging directly with clients to understand business goals, give demos, and debug production issues
• Informing product requirements, identifying appropriate technical designs in partnership with our Product and Design teams
• Proactively communicating progress and challenges in your work and seeking help when you need it
• Performing code reviews and cross-feature validations
• Providing mentorship in your areas of expertise

You'll work with a diversity of technologies, including:

• Languages
• TypeScript/JavaScript, Java, .Net, Python, Golang, Rust, Ruby on Rails, Kotlin, Swift
• Frameworks
• Next.js, React, Angular, Spring, Expo, FastAPI, Django, SwiftUI
• Cloud Service Providers
• Google Cloud Platform, Amazon Web Services, Microsoft Azure
• Cloud Services
• Compute Engine, AWS Amplify, Fargate, Cloud Run
• Apache Kafka, SQS, GCP CMS
• S3, GCS
• Technologies
• AI/ML, LLMs, Crypto, SPA, Mobile apps, Architecture redesign 
• Google Gemini, OpenAI ChatGPT, Vertex AI, Anthropic Claude, Huggingface
• Databases
• Firestore(Firebase), PostgreSQL, MariaDB, BigQuery, Supabase
• Redis, Memcache

Qualifications

• 5+years of industry experience in software development
• Experienced with the full product lifecycle, including CI/CD, testing, release management, deployment, monitoring and incident response
• Fluent in software design patterns, scalable system architectures, tooling, fundamentals of data structures and algorithms

What we offer

• Exposure to high-profile SV startups and enterprise companies
• Competitive salary
• Fully remote work with flexible hours
• Flexible paid time off
• Profit-sharing program
• Healthcare
• Parental leave, including adoption and fostering.
• Gym membership and tuition reimbursement.
• Hands-on career development.

Requirements

• 2+ years of experience in professional Web Development
• Proven software development experience in Core PHP, Codeigniter, WordPress; Laravel is a plus.
• Must have 1+ yrs experience in VueJs or React.Js
  
• Experience in ReactJs, NodeJs is a plus.
• Excellent Software Design and Architecting capabilities
• Complete familiarity with client-side scripting and Angular JS, Ember JS , JavaScript frameworks, including jQuery.
• Complete familiarity and expertise in web markup, including HTML5, CSS3.
• Expertise in third party API integration - payment gateways, Storage, Streaming services, etc.
• Complete familiarity and experience working with JSON / XML and REST API structure
• Familiar with Continuous Integration/Continuous Deployment technologies such as Bitbucket, Jenkins and Git
• AWS/Google Cloud Deployment is a must; Devops capability is a plus.
• Excellent knowledge of relational databases, version control tools and of developing web services.
• Sound Database experience with MySQL and PostgreSQL experience
• A sound knowledge of Object-Oriented (OOPS) Programming & Design Pattern.
• Agile and Iterative (TDD) development expertise.

We are looking for a Full Stack Developer to build scalable software solutions and to be part of our cross-functional team that’s responsible for the full software development life cycle, from conception to deployment.

You should have

• Degree in Computer Science or relevant field
• Strong knowledge and understanding of JavaScript and TypeScript
• Knowledge of multiple frontend languages and frameworks including HTML, CSS, SCSS, JavaScript and Vue.
• Knowledge of backend languages and frameworks primarily Node.js
• Familiarity with SQL databases (e.g. MongoDB)

Perks

• Flexible working hours - employee tracking is never a thing
• A fun and close-knit agile team.
• Open office layout that promotes collaboration, conversation, and camaraderie – the result-oriented team.
• Recreational activities to keep you away from the screen and live, laugh, enjoy with the team.

We are seeking a very talented remote/onsite Senior Software Engineer, proficient in front-end and backend development. We prefer to rapidly develop with frequent releases and aim to provide amazing experiences for our end users.

Each engineer is treated as a true owner, with a high degree of ownership and autonomy. We are looking for a product minded, independent thinker -- not someone whose hand we will hold to make product decisions. We aim for a lean, fast-moving team that prefers to avoid meetings and focus 100% on driving impact.

Responsibilities:

• * Work with cutting-edge front-end and back-end technologies in designing, building, and maintaining performance, responsiveness, and delightful experiences for our customers.
• * Write high-quality front-end & back-end code, complete with automated unit and integration tests, as well as participate in code reviews.
• * Partner with product, marketing, and customer success to develop a highly interactive web application that fosters innovation.
• * Collaborate with other Software Engineers to evaluate and recommend new technologies, and help to continuously modernize and mature our front-end implementations and best practices.

Ideal Candidates Will Have:

• * Minimum of 4 years' experience in fast-paced, nimble teams building software at scale
• * Possesses deep understanding of JavaScript beyond libraries or frameworks (i.e. Core JS, not just jQuery or Angular).
• * A proven ability to deliver an amazing user experience.
• * Have detailed knowledge of responsive CSS, the box model, semantic markup, and HTML5.
• * An appreciation for good design, and the desire to translate visual ideas into working, beautiful code.
• * Experience in building scalable solutions with a high level of code quality through automated tests and good architecture.
• * Ability to solve complex data problems and think of best ways to present these to users.
• * Strong team player with excellent communication skills and high degree of ownership and drive.

Candidates with varying backgrounds are encouraged to apply. We do not require prior knowledge of technologies in our stack, only a desire to learn them.