
Develop Full-stack web applications to analyze and process data for different clients
● Work closely with app development team including project and product manager, developers, and QA to determine problems, testing methods, and best practices
● Enhanced user experience and accomplished webpage objectives by creating site structure, navigation, page optimization, and graphics integration.
● Developed web applications across various platforms using latest industry-adopted technologies and frameworks
● Ensure applications security and ability to interact with multiple APIs and databases
- Architect, design and build complex, highly scalable, high performance enterprise applications
- Lead, mentor and work with a team of engineers to deliver on clients application expectations
- Work with clients engineering needs and deliver on requirements in a team environment
- Accelerate development velocity for all engineers and deliver continuous improvements to the teams process and codebase
- Build automation to prevent and/or remediate service problems from becoming production incidents

About Syrencloud
About
Syren is a specialist data engineering and supply chain solutions company. With over 400 employees, development centers in USA and India within 3 years of starting operations, Syren serves F500 or high-technology clients such as Johnson & Johnson, eBay, Microsoft, GitHub among others.
Leveraging our specialist capabilities in supply chain, data consulting, data science and AI and software design and engineering, we help clients realize their goals and be ready for the future.
We deliver on the promise of helping our customers, colleagues, and communities, to thrive in an ever-changing world.
Syren is an equal opportunity employer.
Connect with the team
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Strong Full Stack Engineer profiles
Mandatory (Experience 1) – Must have 1+ years of hands-on full stack engineering experience (avoid frontend-heavy only profiles, backend heavy will work)
Mandatory (Experience 2) – Must have strong backend engineering experience using Python, including designing and owning APIs, services, and data models in production environments
Mandatory (Experience 3) – Must have strong frontend development experience using React (or equivalent), including component architecture, state management, and building production-grade user interfaces
Mandatory (Experience 4) – Must have end-to-end ownership experience, building and shipping features across the full stack (UI + API + database) without clear handoff boundaries
Mandatory (Experience 5) – Must have strong web fundamentals, including understanding of browser rendering, performance optimization, and accessibility best practices
Mandatory (Experience 6) – Must be able to demonstrate solving complex problems on both frontend and backend, clearly articulating trade-offs, decisions, and outcomes
Mandatory (Experience 7) – Must have solid experience with databases (SQL/NoSQL), including schema design, query optimization, and handling performance bottlenecks
Mandatory (Company) - Top Product Companies, (preferred early-stage startups with Seed to Series C/D with fast-paced shipping culture)
Mandatory (Education) - Tier-1 institutes (IITs, BITS, IIITs), Can be skipped if from Top notch product companies
Should have strong hands on experience of 8-10 yrs in Java Development.
Should have strong knowledge of Java 11+, Spring, Spring Boot, Hibernate, Rest Web Services.
Strong Knowledge of J2EE Design Patterns and Microservices design patterns.
Should have strong hand on knowledge of SQL / PostGres DB. Good to have exposure to Nosql DB.
Should have strong knowldge of AWS services (Lambda, EC2, RDS, API Gateway, S3, Could front, Airflow.
Good to have Python ,PySpark as a secondary Skill
Should have ggod knowledge of CI CD pipleline.
Should be strong in wiriting unit test cases, debug Sonar issues.
Should be able to lead/guide team of junior developers
Should be able to collab with BA and solution architects to create HLD and LLD documents

Job Title: Full Stack Developer (Node.js + React.js)
📍 Location: Gurgaon (On-site)
🕒 Experience: 5+ Years
🕒 Working Days: 5 Days(Mon-fri)
Job Summary:
We are hiring a passionate and experienced Full Stack Developer proficient in Node.js and React.js for our client. The ideal candidate should have solid experience in designing scalable systems, writing optimized code, implementing role-based access control, handling task prioritization, and building robust web applications.
Key Responsibilities:
- Design scalable user management systems with role-based access and authentication.
- Develop backend services and REST APIs using Node.js.
- Build dynamic and optimized front-end applications using React.js and Redux.
- Handle async operations, task queues, and implement retry and prioritization logic.
- Optimize React components for performance using hooks and memoization.
- Ensure secure and scalable system design with proper error handling and authorization flows.
- Apply JavaScript concepts like closures, event loop, and async patterns in real-world scenarios.
- Collaborate with DevOps for basic CI/CD and deployment processes.
Mandatory Technical Skills:
- Frontend: React.js, Redux, JavaScript (ES6+)
- Backend: Node.js, Express.js
- Authentication & Authorization: JWT, OAuth2, Role-Based Access Control (RBAC)
- Task Management: Async/Await, Promises, Retry Mechanisms
- Database: MongoDB or PostgreSQL
- Version Control: Git
Soft Skills:
- Strong problem-solving and system design skills
- Ability to work independently and in a collaborative team
- Clear communication of technical ideas
- Ownership of tasks and components end-to-end
Focus Areas:
- System Design (User Management, Fault Tolerance, Load Distribution)
- JavaScript Core Concepts (Closures, Scope, Event Loop)
- React Optimization & Hooks
- Node.js Architecture & Async Programming
- Task Prioritization and Retry Logic
- Full-stack developer good at react.js and node.js.
- Should be good at algorithms
- Working experience in AWS is a plus
Shortcastle is a sportstech company with presence in over 65+ countries. Flexible and fun-filled team
Senior Full Stack Developer
About the Role :
Were looking for a skilled Full Stack Engineer (5-10 years of experience) who can design and build scalable web applications, own end-to-end features, and contribute to the technology powering Indias fastest-growing jewelry platform.
Youll work closely with product and design teams to bring seamless user experiences to life while ensuring robust backend systems.
Key Responsibilities :
- Design, develop, and maintain scalable web applications and APIs.
- Work across the stack - from front-end interfaces to backend logic and database layers.
- Collaborate with product managers and designers to translate requirements into high-quality code.
- Optimize application performance, security, and scalability.
- Drive code quality via reviews, best practices, and mentoring junior engineers.
- Improve system performance and reliability with monitoring, testing, and CI/CD practices.
- Contribute to architectural decisions and technology choices as the platform scales.
- Stay hands-on with coding while helping guide the technical direction of the team.
Qualifications :
- 5 - 8 years of professional experience as a Full Stack Developer.
- Strong expertise in JavaScript/TypeScript, with experience in frameworks like React.js or Next.js.
- Solid experience with Python (Django, FastAPI, or Flask).
- Solid understanding of relational databases (schema design, query optimization).
- Experience building and consuming REST/GraphQL APIs.
- Familiarity with Docker and containerized deployments.
- Hands-on experience with cloud platforms (AWS preferred).
- Understanding of microservices architecture.
- Knowledge of DevOps practices (CI/CD pipelines, monitoring, observability).
- Strong understanding of web performance, scalability, and security best practices.
- Excellent problem-solving, debugging, and optimization skills.
- Strong communication skills and ability to mentor other engineers.
Nice to Have :
- Background in Statistics, Computer Science, Economics, or related field.
- Exposure to Python or R for advanced analytics.
Whats in It for You :
- High ownership role in a fast-paced environment.
- Opportunity to work closely with the founding team and passionate professionals.
- Competitive salary with fast career growth and appraisals.
- Dynamic, collaborative, and politics-free work environment.
- Health insurance coverage.
Additional Details :
- Early-stage startup environment where achievements require effort, dedication, and passion.
- 6-day work week.
- Location : HSR Layout, Bangalore.
Responsibilities:
● A Bachelor's degree in Engineering or related field
● Proficiency with fundamental front end languages such as HTML, CSS and JavaScript.
● Familiarity with JavaScript frameworks preferably React.
● Proficiency with server side languages such as Python(Django).
● Familiarity with database technology such as MySQL and MongoDB.
● Familiarity with Cloud Technologies such as AWS.
Preferred Qualities:
● Persistent problem solver & Burning curiosity
● Responsible and Never give up attitude
● Attention to detail & Graphic Designing sense would be appreciated.
● Sense of Discipline & Meets deadlines religiously
Perks and Privileges:
● Hypergrowth Startup culture true of the Silicon valley etiquettes
● Monthly outings and Team building exercises.
● Free Subscription of any upskilling platform/course/masterclass of your choice
● Every month one book of your choice will be delivered to you.
● Food and Beer is on us
We are looking for highly motivated engineers with the following skillset-
- Engineering degree in Computer science or ECE or MCA is a must
- In-depth knowledge of PHP, HTML5, CSS, jQuery, JavaScript, AJAX
- Experience using PHP frameworks such as Laravel, Symfony, Zend, etc. - any 1 is required
- VueJS, AngularJS, ReactJS - knowledge of any 1 is required
- Between 1-5 years of work experience is required
- Very strong data structure and algorithm knowledge
- Ideal candidate would be a very strong developer with great coding skills
- Good English communication skills
- Willingness to work on multiple projects simultaneously
- Ability to work through ambiguous requirements and come up with a clear scope and problem statement
- If you have any live projects portfolio or GitHub handle please share them
- Office is in Fairlie place (Dalhousie), Kolkata 700 001








