Java Fullstack Developer (Java with React.JS) (Remote Work)

Job Title : Full Stack Engineer (Python + React.js/Next.js)

Experience : 1 to 6+ Years

Location : Bengaluru (Indiranagar)

Employment : Full-Time

Working Days : 5 Days WFO

Notice Period : Immediate to 30 Days

Role Overview :

We are seeking Full Stack Engineers to build scalable, high-performance fintech products.

You will work on both frontend (Typescript/Next.js) and backend (Python/FastAPI/Django), owning features end-to-end and contributing to architecture, performance, and product innovation.

Main Tech Stack :

Frontend : Typescript, Next.js, React

Backend : Python, FastAPI, Django

Database : PostgreSQL, MongoDB, Redis

Cloud : AWS/GCP, Docker, Kubernetes

Tools : Git, GitHub, CI/CD, Elasticsearch

Key Responsibilities :

• Develop full-stack applications with clean, scalable code.
• Build fast, responsive UIs using Typescript, Next.js, React.
• Develop backend APIs using Python, FastAPI, Django.
• Collaborate with product/design to implement solutions.
• Own development lifecycle: design → build → deploy → monitor.
• Ensure performance, reliability, and security.

Requirements :

Must-Have :

• 1–6+ years of full-stack experience.
• Product-based company background.
• Strong DSA + problem-solving skills.
• Proficiency in either frontend or backend with familiarity in both.
• Hands-on experience with APIs, microservices, Git, CI/CD, cloud.
• Strong communication & ownership mindset.

Good-to-Have :

• Experience with containers, system design, observability tools.

Interview Process :

1. Coding Round : DSA + problem solving
2. System Design : LLD + HLD, scalability, microservices
3. CTO Round : Technical deep dive + cultural fit

Job Summary:

As a Java Full Stack Developer, you will design, develop, and maintain scalable backend services and frontend applications using Java (Spring Boot) and React. You will work closely with cross-functional teams to deliver high-performance and reliable systems.

Key Responsibilities:

• Develop and maintain applications using Java, Spring Boot, and React

• Design and build RESTful APIs for data-driven applications

• Work on frontend development using ReactJS

• Ensure scalability, performance, and reliability of applications

• Collaborate with QA, DevOps, and Product teams

• Participate in code reviews and technical discussions

• Troubleshoot and resolve production issues

• Mentor and guide junior developers

Required Skills & Qualifications:

• Strong experience in Java and Spring Boot

• Hands-on experience with React.js

• Experience with PostgreSQL or other relational databases

• Good understanding of data modeling and backend architecture

• Strong knowledge of OOP concepts

• Familiarity with Agile/Scrum and Git workflows

• Excellent problem-solving and communication skills

Good to Have:

• Experience with Snowflake / Databricks

• Exposure to data-driven or analytics platforms

Position -  Full stack Developer

Location - Navi Mumbai

Freshers  0-3 yrs

Who are we

Based out of IIT Bombay, HaystackAnalytics is a HealthTech company creating clinical genomics products, which enable diagnostic labs and hospitals to offer accurate and personalized diagnostics. Supported by India's most respected science agencies (DST, BIRAC, DBT), we created and launched a portfolio of products to offer genomics in infectious diseases. Our genomics based diagnostic solution for Tuberculosis was recognized as one of top innovations supported by BIRAC in the past 10 years, and was launched by the Prime Minister of India in the BIRAC Showcase event in Delhi, 2022.

Objectives of this Role:

• Work across the full stack, building highly scalable distributed solutions that enable positive user experiences and measurable business growth
• Ideate and develop new product features in collaboration with domain experts in healthcare and genomics 
• Develop state of the art enterprise standard front-end and backend services
• Develop cloud platform services based on container orchestration platform 
• Continuously embrace automation for repetitive tasks
• Ensure application performance, uptime, and scale, maintaining high standards of code quality by using clean coding principles and solid design patterns 
• Build robust tech modules that are Unit Testable, Automating recurring tasks and processes  
• Engage effectively with team members and collaborate to upskill and unblock each other

Frontend Skills 

• HTML 5  
• CSS framework ( LESS/ SASS / Tailwind ) 
• Es6 / Typescript 
• Electron app /Tauri)
• Component library ( Bootstrap , material UI, Lit ) 
• Responsive web layout ( Flex layout , Grid layout ) 
• Package manager --> yarn / npm / turbo
• Build tools - > (Vite/Webpack/Parcel)
• Frameworks -- > React with Redux of Mobx / Next JS
• Design patterns 
• Testing - JEST / MOCHA / JASMINE / Cypress
• Functional Programming concepts (Good to have)
• Scripting ( powershell , bash , python )

Backend Skills 

• Nodejs - Express / NEST JS 
• Python / Rust
• REST API 
• SOLID Design Principles
• Database (postgresql / mysql / redis / cassandra / mongodb ) 
• Caching ( Redis ) 
• Container Technology ( Docker / Kubernetes )  
• Cloud ( azure , aws , openshift, google cloud ) 
• Version Control - GIT 
• GITOPS 
• Automation ( terraform , ansible ) 

Cloud Skills 

• Object storage
• VPC concepts 
• Containerize Deployment
• Serverless architecture 

 Other Skills 

• Innovation and thought leadership
• UI - UX design skills  
• Interest in in learning new tools, languages, workflows, and philosophies to grow
• Communication 

To know more about us- https://haystackanalytics.in/

Building web application front end & backend

React

Spring Core, Spring MVC

Spring Boot

Spring Webflux/Reactive

Mongo DB/Cassandra

HTML, CSS, Javascript,

Cloud Basics (AWS/GCP/Azure)

Cloud Functions (AWS/GCP/Azure)

Srijan is hiring for the position of Senior JavaScript Developer (React & Node)

with a remote working option.

Skills Required:

• Minimum 3-5 years of experience as a Front-end Developer

• Possess Responsive/Mobile Design Skills

• Knowledge of Cross-Browser Development

• Knowledge of JavaScript frameworks like NodeJS, ReactJS etc.

• Worked on Front End Frameworks like Bootstrap

• Worked on markup languages like HTML, HTML5

• Worked on JavaScript, CSS, and jQuery

• Excellent knowledge of browser troubleshooting and debugging practices and techniques

• Knowledge of some SEO principles

• Knowledge of graphics software such as Adobe Suite, Photoshop, etc.

• Sense of ownership and pride in your performance and its impact on the company’s success

• Critical thinker and problem-solving skills

• Team player

• Good time-management skills

• Good interpersonal and communication skills

• Experience of min 7-10 years in Technology

• Master’s Degree / relevant certification

• Enable the team to design solutions with a sustainable architecture in mind, collaborating in building a clear and shared understanding/vision of it within the team.
• Actively support team wellness through building an environment of trust, openness and safe experimentation.
• Train and Mentor the team in the correct understanding of technical practices, enabling the team to identify how to get most value out of them within the context of the project.
• Comply with development and corporate processes and standard practices.
• Status reporting.
• Responsible for defining and setting baselines.
• Plan, schedule, execute, report and control the strategy to move releases to staging and live environments, ensuring the integrity of the live environment is protected and that the correct components are released.
• Take care of team logistics in terms of anticipating development environment needs and engaging whoever needed to make them timely available for the team.

• Expert knowledge of key Web technologies as HTML5, CSS3, 
• Expect in JavaScript / AJAX, NodeJS, React.
• Expert knowledge of OO Analysis and Design, 
• Expert on Design Patterns and Frameworks as NodeJS, React.
• Knowledge of Agile methodologies (Scrum).

• Candidate must possess good communication skills.
• Creative bent of mind
• Self-motivation to work independently and strong work ethic.
• Ability to work in a team, and adapt to new and evolving processes.
• Flexibility with shifts & week offs is a must.
• Team management 
• Capacity to understand and develop a business Vision
• Flexibility and adaptable
• Goal-Oriented
• Experience leading and managing a team
• Mentoring a team
• Deep experience with Agile
• Passion around technology
• Creative
• Player- coach mentality
• Strong communication skills

Full Stack Developers at The Seenit Co. are passionate about using technology to create an impact on the world they live in. At Seenit, you will get to collaborate with an accomplished team that loves solving real-world problems. You will get to work on cutting edge projects that will shape the next phase of growth for the global luxury industry.

Seenit’s suite of products enables the leading luxury retailers around the world to transform their customer experience and build loyal relationships with their customers. The apps allow retailers to make use of their existing infrastructure and resources to deliver a truly omnichannel experience in today's rapidly changing world of shopping.

We would welcome someone to the team who:

• Loves to write “clean”, well designed code to solve complex problems
• Can design, develop and test the core product software and databases to ensure strong optimization and functionality
• Is inclined to contribute in all phases of the development lifecycle and takes end to end ownership of the project
• Follows best industry practices
• Is excited to support others to succeed and shine in a collaborative team culture

• 1+ years of experience in developing web based applications
• Good knowledge of NoSQL databases, and query optimisations
• Experience with MongoDB, Express JS, React JS, Node JS
• Ability to pay attention to UI detail and develop amazing, non-standard user experiences
• Exposure to TypeScript will be plus