full stack developer (React & Java)

Role & Responsibilities

This is not just another dev job. You’ll help engineer the backbone of the world’s first AI Agentic manufacturing OS.

You will:

• Build and own features end-to-end — from design → deployment → scale.
• Architect scalable, loosely coupled systems powering AI-native workflows.
• Create robust integrations with 3rd-party systems.
• Push boundaries on reliability, performance, and automation.
• Write clean, tested, secure code → and continuously improve it.
• Collaborate directly with Founders & Snr engineers in a high-trust environment.

Our Tech Arsenal:

• We believe in always using the sharpest tools for the job. On that end we always try to remain tech agnostic and leave it up to discussion on what tools to use to get the problem solved in the most robust and quick way.
• That being said, our bright team of engineers have already constructed a formidable arsenal of tools which helps us fortify our defense and always play on the offensive. Take a look at the Tech Stack we already use.

Ideal Candidate

• Strong Full stack/Backend engineer profile
• Mandatory (Experience): Must have 2+ years of hands-on experience as a full stack developer (backend-heavy)
• Mandatory (Backend Skills): Must have 1.5+ strong experience in Python, building REST APIs, and microservices-based architectures
• Mandatory (Frontend Skills): Must have hands-on experience with modern frontend frameworks (React or Vue) and JavaScript, HTML, and CSS
• Mandatory (AI): Must have hands on experience with using AI tools (eg: Claude, Cursor, GitHub Copilot, Codeium, Deepdcode) for coding
• Mandatory (Database Skills): Must have solid experience working with relational and NoSQL databases such as MySQL, MongoDB, and Redis
• Mandatory (Cloud & Infra): Must have hands-on experience with AWS services including EC2, ELB, AutoScaling, S3, RDS, CloudFront, and SNS
• Mandatory (DevOps & Infra): Must have working experience with Linux environments, Apache, CI/CD pipelines, and application monitoring
• Mandatory (CS Fundamentals): Must have strong fundamentals in Data Structures, Algorithms, OS concepts, and system design
• Mandatory (Company) : Product companies (B2B SaaS preferred)
• Mandatory (Stability): Must have atleast 2 years of experience in each of the previous companies (if less exp, then proper reason)
• Preferred (Location) - Mumbai, Bangalore
• Preferred (Skills) : Candidates with strong backend or full-stack experience in other languages/frameworks are welcome if fundamentals are strong
• Preferred (Education) : B.Tech from Tier 1,Tier 2 institutes

Job Title: Full Stack Developer (.NET + React)

Location: Pune, India

(Please apply only if you are currently based in Pune)

Experience: 3+ years (Full Stack Development)

Notice Period: Immediate Joiners Only.

About the Role

We are looking for a highly skilled Full Stack Developer with expertise in .NET and React to join our growing team in Pune. This role demands a strong understanding of backend and frontend technologies to contribute to high-impact enterprise projects. If you're passionate about clean architecture, performance, and scalability, and you're available to join immediately, we want to talk to you.

Key Responsibilities:

• Develop and maintain scalable web applications using .NET (C#) for backend and React.js for frontend.
• Design and implement RESTful APIs and integrate them with the frontend.
• Collaborate with UI/UX designers, QA engineers, and other developers to deliver quality products.
• Participate in code reviews and maintain high standards for code quality.
• Optimize application performance, scalability, and responsiveness.
• Maintain version control using Git and participate in CI/CD pipeline processes.

Required Skills:

• Strong hands-on experience in .NET Core / ASP.NET Core (Web API)
• Solid experience with React.js and JavaScript/TypeScript
• Experience with Entity Framework / Dapper, LINQ, and SQL Server
• Proficiency in HTML5, CSS3, SCSS, and modern frontend development practices
• Knowledge of REST API design, token-based authentication (JWT/OAuth)
• Familiarity with Git, CI/CD tools, and agile development practices

NetSysCon is looking for a Full Stack Engineer for a travel/airline SaaS start-up. They have partnered with major airlines and entertainment brands such as Disney Theatrical Group, Qantas, Iberia, Alaska, Malaysia Airlines, Vistara, IndiGo, Volaris, and others. Their platform offers innovative tools to drive revenue, operational efficiency, and digital shopping conversion.

Job Profile

Work on all elements of the stack from data modeling and back end API's to UI implementation.
Working with airlines on integrations deep within their systems (in person, if you like!).
Assisting with key architecture, platform and infrastructure design.
Ensuring the system runs and scales smoothly, with high availability and resilience to failure.

What we use:
Python, Django, Celery
React, TypeScript
Scikit-learn, PyTorch, Tensorflow
Postgres, Redis
Kubernetes, Docker, AWS, Terraform, CDK, Github Actions

Our client is a tech company first so engineering is the largest, most important department. They care about developer ergonomics and believe investing time and effort in getting software and platform right is not-negotiable. They have:

A comprehensive automated unit test suite (frontend + backend);
Fully automated CI/CD (git push is all you need);
Fully containerized / reproducable dev environment (single-command bootstrap);
Redundant, self-healing, auto-scaling infrastructure;

Requirements

Full-stack engineering experience in at least one of the following languages/frameworks - Backend: Python/Django (preferred), Ruby/Rails, Node;
Frontend: React (preferred), Angular, Vue.
Evidence of exposure to architectural patterns of large, complex web applications (eg, well-designed APIs, asynchronous data pipelines/message queues, distributed systems).
Engineers who have experience with software best practices such as unit testing, reusable components, traceability.

• Previous working experience as a MERN/MEAN  Stack Developer for 1 year (Minimum).
• In depth knowledge of NodeJS, ExpressJS or Restify
• Experience implementing applications using Angular 2+ versions or React
• Experience creating front end applications using HTML5, Angular/React, LESS/SASS
• Hands on experience with JavaScript
• Development on both client and server-side
• Experience on Angular 2+  and React Js will be an plus point
• Experience on both MEAN/MERN Technologies will be an advantage.