MEAN stack Developer

We have a product. It works. Real users, real usage.

It's also messy in places, evolving fast, and full of decisions that made sense six months ago but now need to scale.

We're building a Compliance Automation platform and need a Senior Full Stack Developer who wants to own a piece of it — not just work on tickets.

Stack: Node.js, Express, Next.js, Postgresql, OAuth (ElectronJS and Infrastructure knowledge is a bonus)

What this actually looks like:

• you'll pick up modules that work but aren't clean.
• You figure out what's wrong, fix it properly, and extend it without leaving a trap for the next person.
• We're not going to spec everything out for you. Develop, test and deploy even with minimal requirements. That's the point.

You'll fit in if:

• You have 2+ years of previous development experience. (Preferably in a Product-Based SaaS and the tech stack mentioned above.)
• Messy codebases don't scare you, they annoy you just enough to fix them
• You make decisions and move, instead of waiting for alignment
• You've shipped in fast-moving environments and have the scars to prove it
• You care about code that lasts, not just code that ships

Probably not for you if:

• You need a lot of direction to get started
• You think good engineering means complex engineering
• "Senior" to you means less coding, more opinions

We care about outcomes. Did your part hold up? That's the question.

Budget: 5-12LPA open for the right fit.

Experienced Senior Full Stack Engineer to Build & Backend for Event Ticketing Platform Using Claude Code

Overview

We have the frontend already built in Replit for both user and admin experiences. We are looking for a very experienced software engineer to design, build, and scale a production ready backend for a high concurrency event ticketing platform.

This role is for a true senior engineer who actively uses Claude Code as part of their daily development workflow, understands how to review and harden AI assisted output, and can ship systems that hold up under real world load, QA, and security testing.

This is not a prototype or demo system. This backend must be reliable, scalable, secure, and extremely well documented.

What You Will Be Building

• Backend services for an event ticketing platform

• Multi tenant architecture supporting thousands of organizers and events

• High concurrency purchase and checkout flows

• Secure user, admin, and system level access controls

• Production deployments with secrets management, middleware, and security layers

• Observability, logging, and metrics suitable for QA and load testing

• A thoroughly documented backend that future engineers can onboard into quickly

Core Engineering Requirements

• 10 plus years of professional software engineering experience

• Expert level experience using Claude Code or equivalent AI coding agents in real production workflows

• Deep experience building backends with Node.js

• Strong experience with Supabase and PostgreSQL

• Experience deploying and scaling applications on Vercel

• Proven experience extending existing codebases safely

• Strong API design and database performance fundamentals

• Ability to reason clearly about concurrency, transactions, and failure modes

Scalability and Performance Expectations

The backend must be designed to support:

• Hundreds of thousands of ticket purchases

• Thousands of concurrent users and tenants

• Large traffic spikes during on sale windows

• Load testing across all major latency percentiles including p90, p95, and p99

• Extremely low tail latency under high concurrency

• Graceful degradation and recovery under stress

You should be comfortable designing and implementing caching strategies, queue based workflows, idempotent operations, locking mechanisms, and transactional safety.

Security and Production Readiness

You must be able to:

• Set up production environments with proper secrets management

• Implement middleware for authentication, authorization, and rate limiting

• Design secure communication between frontend and backend

• Apply industry best practices for security hardening

• Prepare the system to pass penetration testing

• Maintain clean separation of concerns and least privilege access

Documentation and Developer Experience Requirements

High quality documentation is a hard requirement for this role.

You must have experience:

• Using AI powered documentation tools to generate and maintain technical documentation

• Producing clear architectural overviews and system diagrams

• Writing detailed README files and onboarding guides

• Documenting APIs, data models, and critical flows

• Keeping documentation in sync with code changes over time

We expect the backend to be easy to understand, easy to extend, and well explained for future engineers.

How We Evaluate Candidates

We are looking for engineers who can demonstrate:

• Real production systems they have built or scaled

• Clear judgment in how they use Claude Code and validate AI generated output

• Strong opinions on production readiness backed by experience

• The ability to move fast without sacrificing quality or safety

A short paid technical task may be used that involves real backend work with production quality code and documentation.

Job Description: Principal Engineer (Full Stack Architect)

Job Title: Full Stack Architect

Location: Hyderabad, India

Experience: 15Years to 20 years (4+ years in Enterprise Architecture)

Technology Stack: MERN (MongoDB, Express, React, Node.js), Distributed Systems, Cloud (GCP/Azure), Neo4j, Vector Databases, SQL and NoSQL Databases, Knowledge Graphs.

Industry: Enterprise Software, Large-Scale Distributed Systems, Machine Learning

Job Summary

As a Full Stack Architect, you will play a pivotal role in designing and architecting large-scale distributed systems with a strong focus on the MERN stack (MongoDB, Express.js, React, Node.js). You will lead the design and implementation of enterprise-grade software solutions that leverage cloud infrastructure (GCP/Azure), knowledge graphs (Neo4j), vector databases, and machine learning at scale. In this role, you will work closely with cross-functional teams including data scientists, cloud engineers, and front-end developers to deliver high-performance, secure, and scalable applications.

This role requires a deep understanding of distributed systems architecture, graph databases, machine learning systems, and cloud computing, with a strong focus on building solutions that meet business and technical needs. The ideal candidate will have 12+ years of experience with a proven track record of architecting full-stack systems and leading engineering teams in a fast-paced, innovative environment.

Roles and Responsibilities

Full Stack Architecture: Design, develop, and maintain highly scalable, distributed, and fault-tolerant enterprise applications using the MERN stack (MongoDB, Express.js,

React, Node.js).

Distributed Systems: Architect and design large-scale distributed systems that handle high- volume, low-latency data processing.

Cloud Engineering: Implement and maintain cloud infrastructure solutions on GCP or AWS,ensuring high availability, scalability, and performance.

Knowledge Graphs and Databases: Design and optimize complex data models using Neo4j, vector databases, and other NoSQL solutions to manage interconnected data efficiently.

Enterprise Solutions: Architect and deliver cloud-native enterprise software solutions that meet enterprise-grade security, compliance, and performance requirements.

Data Structure & Algorithms (DSA): Lead by example in writing efficient, high-performance code and optimize software with a strong focus on algorithms, data structures, and system design principles.

Collaboration: Work with engineering, data science, and product teams to translate business requirements into scalable technical solutions.

Mentorship: Mentor junior engineers and foster a collaborative team environment.

Performance Optimization: Ensure system performance, scalability, and reliability throughcode reviews, optimizations, and best engineering practices.

Documentation & Best Practices: Maintain comprehensive architecture documentation and promote engineering best practices across teams.

Mandatory Requirements

Experience: 12+ years of full-stack development experience, with significant expertise

in building and architecting applications using the MERN stack (MongoDB, Express.js,

React, Node.js).

 Distributed Systems: Proven track record of architecting and implementing large-scale

distributed systems with a focus on reliability, scalability, and performance.

 Cloud Expertise: Extensive hands-on experience with cloud infrastructure (GCP or AWS),

with a deep understanding of cloud services such as compute, storage, networking, and

security.

 Database Systems: Expertise in NoSQL databases like MongoDB and graph databases like

Neo4j. Experience with vector databases for high-dimensional data processing.

 Knowledge Graphs: Hands-on experience in designing and working with knowledge graphs

for solving complex data relationships.

 Data Structures & Algorithms: Strong knowledge of DSA with practical experience in

solving complex technical challenges.

 Microservices Architecture: Experience in designing and developing microservices-based

architectures and ensuring high availability.

 DevOps ; Automation: Knowledge of DevOps practices (CI/CD), containerization (Docker), and orchestration (Kubernetes).

 Agile Methodologies: Experience with Agile development methodologies, including SCRUM, TDD, and iterative development.

Nice-to-Have Requirements

 Front-End Expertise: Advanced experience with React.js, with knowledge of modern front- end technologies (Next.js, Redux, TypeScript).

 Cloud Certifications: Google Cloud Professional Architect or Azure Certified Solutions Architect certifications.

 Data Engineering: Hands-on experience with data pipelines, ETL processes, and big data technologies (e.g., Apache Spark, Kafka).

 AI/ML Ops: Experience in deploying machine learning models using MLOps frameworks and automating ML pipelines.

 Graph Analytics: Experience in graph algorithms and analytics, with the ability to model and query complex relationships in a graph database.

 System Design: Experience in conducting system design reviews, providing insights into performance bottlenecks, scalability, and trade-offs.

 Security & Compliance: Knowledge of enterprise-level security protocols and data privacy compliance frameworks (e.g., SOC2, GDPR).

Leadership: Proven experience in leading cross-functional teams, setting technical roadmaps, and ensuring alignment between business and technical goals.

PHP Developer | App Ringer 

We are looking for a skilled and experienced PHP Laravel Developer to join our team.

Developer to join our back-end development team. In this role, you will be responsible for developing and implementing backend components using PHP concepts and Laravel. You will also be responsible for profiling and improving backend performance and documenting our backend codebase.

 Responsibilities:

• Meeting with the development team to discuss backend applications. 
• Developing and implementing highly responsive user interface components using react concepts.
• Writing backend code using PHP workflows.
• Wordpress knowledge is a plus.
• Developing and implementing backend architecture to build scalable systems and applications.
• Monitoring and improving back-end performance.
• Documenting backend changes and developing updates.

Requirements:

• You have at-least 3 years of experience crafting robust, high-scale, distributed systems in         production environments. 
• You are passionate about leading initiatives and collaborating across Data Science, Design, Engineering and Product teams. 
• You are a strong coder with an eye for using the right algorithms and data structures for the problem at hand. 
• Ability to troubleshoot issues in a large distributed infrastructure. 
• You are proficient with RESTful API design and implementation using PHP. 
• Proficiency in relational (MySQL, Cloud Spanner etc.) and non-relational (Google Cloud Firestore etc.) databases.
• Excellent troubleshooting skills.
• Good project management skills.

Responsibilities

• Strong knowledge of MERN stack (MongoDB, Express JS, React JS, Node JS, HTML5, CSS3, jQuery, Bootstrap, SASS)
• Develop user interfaces for modern rich internet applications with the latest front-end technologies
• Developing features to enhance the user experience.
• Should have excellent in-depth knowledge on Nodejs and MongoDB
• Hands-on experience working with Object-Oriented JavaScript (OOJS), JavaScript libraries and their practical uses in building complex interactive experiences
• Building reusable code for future use
• Writing tested code and its documention

• 1+ years of experience in front end development and backend development is must
• Thorough knowledge of HTML5, CSS3 (LESS/SASS),React, Nodejs and Mongodb
• Solid understanding of JavaScript and the ability to pick up any framework quickly
• Strong Experience in back-end frameworks used to develop dynamic web pages (REST, GraphQL, WebSocket/socket.io)
• Expertise in developing and testing across multiple browsers, platforms, DOM implementations, etc.
• Strong experience in React, React Hooks, Redux, Thunk | Saga, ES6, Typescript, ESLint, Nodejs, GraphQL, Redis, AWS, Git, Github, Docker

Bonus but not mandatory

• UI/UX designs
• AWS
• Git
• CI/CD

Job Description:

1. Design, implement and deliver custom solutions using the existing robotics framework.
2. Debug issues, do root-cause analysis and apply fixes.
3. Design and implement tools to facilitate application development and testing.
4. Participate in architectural improvements.
5. Work with team members in deployment and field testing.

Requirements:

1. Bachelor Degree / Masters in Engineering (ECE or CSE preferred)
2. Work experience of 10+ years in software programming.
3. Proficiency in Python programming for Linux based systems.
4. Full understanding of software engineering.
5. Basic Knowledge of Robot Operating System(ROS) is a plus.
6. Good understanding of the algorithms and control loops.
7. Working knowledge of Git: creating, merging branches, cherry-picking commits, examining the diff between two hashes. Advanced Git usage is a plus.
8. Knowledge of video streaming from edge devices is a plus.
9. Thrive in a fast-paced environment and have the ability to own the project’s tasks end-to-end with minimum hand-holding
10. Learn and adapt new technologies & skills. Work on projects independently with timely delivery & defect free approach.

DigiXHub is one of the well known Blockchain Application Development Company in USA & India that provides solutions such as Blockchain Development(Public, private, Consortium Blockchain), Cryptocurrency Exchanges, ICO & ICO Marketing Services, Cryptocurrency Wallet Development, Smart contract Development etc.

For more details, please log on to www.DigiXhub.com.

Work Location: Remote

Work Experience : 3 to 7 years

(Minimum 2.5 years of experience into MERN Stack)

Immediate Joiner Preferred.

We are looking for a Full Stack Web Developer (MERN Stack). Passionate about programming end to end, i.e both frontend and backend modules and applications. Open and keen to learn new technologies.

Job Description

• Develop interactive, user-friendly applications using the latest frameworks
• Translate designs and wire-frames into high quality and responsive screens
• Developing Front-End and Back-end Web Application
• Creating servers and databases for functionality
• API design, creation and integrations
• Staying abreast of developments in web applications, app development and programming languages.

Desired Candidate Profile

• Must have strong knowledge of Object-Oriented JavaScript
• Experience building applications in React and Node.js
• Design, modify, develop, test and implement flawless and clean code
• Experience with MongoDB and MYSQL
• Good knowledge of coding standards, design patterns and unit testing.
• Experience in API design and development
• Expertise in building secure, scalable & reliable systems
• Understanding of libraries like Next.js, Jquery, Adonis.js(optional)
• Good knowledge of CSS and HTML
• Experience working with GIT
• Experience with RESTful APIs

• Developing and maintaining dynamic websites and web applications
• Ensure foolproof performance of the deliverable
• Coordinate with co-developers and other related departments.
• Experience own and work on end to end on an application.
• Set Milestones and deadline.
• Fine-tuning and resolve performance issues
• Mentor colleagues and code walk through.

Must have Skills:

PHP, OOP, codeigniter, Jquery, MySQL

Location: Job Location : Senapati Bapat Marg, Elphinstone Road.