Full Stack Engineer

JOB DESCRIPTION:

Location: mumbai

Mode of Work : 3 days from Office

DSA(Collections, Hash maps, trees, Linkedlist and Arrays, etc), Core Oops concepts(Multithreading, Multi Processing, Polymorphism, Inheritance etc) Annotations in Spring and Spring boot, Java 8 Vital features, database Optimization, Microsevices and Rest API

• Design, develop, and maintain low-latency, high-performance enterprise applications using Core Java (Java 5.0 and above).
• Implement and integrate APIs using Spring Framework and Apache CXF.
• Build microservices-based architecture for scalable and distributed systems.
• Collaborate with cross-functional teams for high/low-level design, development, and deployment of software solutions.
• Optimize performance through efficient multithreading, memory management, and algorithm design.
• Ensure best coding practices, conduct code reviews, and perform unit/integration testing.
• Work with RDBMS (preferably Sybase) for backend data integration.
• Analyze complex business problems and deliver innovative technology solutions in the financial/trading domain.
• Work in Unix/Linux environments for deployment and troubleshooting.

Required Skills & Experience:

• 3– 7 years of strong hands-on experience in Core Java, Spring boot, microservices, data structures.
• Deep understanding of Object-Oriented Programming (OOP), data structures, algorithms, and design patterns.
• Proven experience with Spring, CXF, and REST/SOAP web services.
• Solid understanding of microservices architecture and distributed systems.
• Experience working with Sybase or other relational databases.
• Expertise in multithreading, concurrency, and high-throughput server-side development.
• Exposure to capital markets, sales & trading platforms, or similar financial services applications.
• Good working knowledge of Unix/Linux environments.
• Experience in solution architecture and design documentation is a strong plus.
• Strong problem-solving skills, analytical thinking, and a proactive attitude.
• Excellent communication and interpersonal skills to work effectively with global teams.

Preferred Qualifications:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
• Previous experience in investment banking, capital markets, or financial technology domains.

 For more details:

Website: www.wissen.com

Wissen Thought leadership : https://www.wissen.com/articles/

LinkedIn: Wissen Technology

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.

Hiring for the position of Full Stack Developer  / Senior Full Stack Developer responsible for managing back-end services and the interchange of data between the server and the users.

Your primary focus will be the development of all server side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the frontend elements built by your co-workers into the application. Therefore, a basic understanding of frontend technologies is necessary as well.

We are looking to recruit a candidate for a role that will require:

• Create and consume restful APIs
• Design, develop, and maintain internal and external applications
• Build efficient, testable, and reusable modules
• Write high quality, structured application/interface code and documentation
• Identify solutions through research and collaboration that resolves the root of problems as they arise
• Define functional and technical requirements for application software to develop skills and knowledge
• Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality
• Contribute in all phases of the development lifecycle

Requirement

∙ Proficient in Node.JS and ReactJS development stack

∙ 2+ years’ experience designing, querying, and updating databases in MySQL/nosql

∙ Basic understanding of web technologies including HTML, CSS, JavaScript, AJAX etc.

∙ Passion for best design and coding practices and a desire to develop new bold ideas

∙ Good to have knowledge of AWS, Redis, ElasticSearch

Education: Min. Graduate in related discipline

Work experience: 2 years relevant experience

Job Description:

We are seeking a Full stack Developer to contribute to the development of our Analytics platform. The ideal candidate will play a key role in each stage of the product development process, collaborating with a team of developers and designers to deliver high-quality work within tight timeframes.

Responsibilities:

- Develop and maintain web applications using PHP (Laravel), React (Next.js), Node.js

- Implement server-side scripting, API development

- Write clean, maintainable, and efficient code

- Build and scale an analytics platform that meets business requirements.

- Stay up-to-date with industry trends and incorporate best practices into the development process.

Requirements:

- Bachelor's degree in computer science or equivalent.

- Tech Stack: PHP (Laravel), React (Next.js), MySQL, Tailwind

- Strong analytical and problem solving skills

- 2-3 years of experience using PHP, MySQL

- 1 years of experience in Laravel, React.js

- Knowledge of Design patterns and OOPs concepts

- Knowledge of Linux / Unix flavors

- Familiarity with RESTful API principles and best practices

- Knowledge of Git

- Should be able to work independently

BONUS POINTS

- Familiarity with Node.js, Python

- Exposure to any of the cloud platforms like AWS/GCP/Azure

- Familiarity with LLMs

About Us:

We’re a young team of F&B enthusiasts who live and breathe data. At Kitchen Spurs, we believe decisions should be driven by insights—not instincts. We partner closely with restaurant teams, taking the operational burden of marketplace management off their shoulders—handling aggregator platforms, uncovering trends, and eliminating hours of manual work. All of this is powered by our robust analytics platform, designed to decode performance data into clear, actionable strategies. With our support, restaurants can focus on what truly matters: delivering exceptional customer experiences—the only metric that drives lasting success.

Skills

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
• Expertise in backend programming with Node.js and MongoDB.
• Experience with React.js and redux.
• Material UI and 3rd party libraries.
• Experience with clean code writing practices like avoiding callback hell like promises, async.
• Thorough understanding of Node.js and its core principles.
• Experience with popular React.js workflows (such as Flux or Redux).
• Familiarity with newer specifications of ECMAScript.
• Experience with data structure libraries (e.g., Immutable.js).
• Familiarity with RESTful APIs.
• Knowledge of modern authorization mechanisms, such as JSON Web Token.
• Familiarity with modern front-end builds pipelines and tools.
• A knack for benchmarking and optimization.
• Familiarity with code versioning tools (such as Git, SVN, and Mercurial).

Responsibilities:

• Build Node.js APIs using microservices.
• Rewriting backend code with microservices architecture & Unit tests.
• Developing new user-facing features using React.js.
• Building reusable components and front-end libraries for future use.
• Translating designs and wireframes into high-quality code.
• Optimizing components for maximum performance across a vast array of web-capable devices and browsers.

1. Must have Experience in React, Nodejs.
2. Experience with the CI Systems.
3. Experience with any of the Cloud Platforms Such as GCP,AWS.
4. Experience with Continuous Integration environments.
5. Experience in end-to-end testing frameworkS Like Puppeteer / Cypress / Protractor/ Other selenium testing framework.
6. Experience with JavaScript Unit Testing Frameworks Like Jest/Mocha.
7. Experience in TypeScript.

                                                             Tech Lead - BizzTM

Job Title: Tech Lead

 Location: Gurgaon

About us

BizzTM is an innovative retail platform that offers access to a range of e-commerce products through a network of local 'BizzOwners' in Tier2+ cities. It brings the variety and range of e-commerce categories to the aspirational population in these cities which are underserved by e-commerce due to high delivery costs and the need for trust.

Experience Required:

 4-6 years of experience About the role We are looking for a Tech Lead to turn our vision and product into easy-to-use software for our Clients.

Responsibilities:

• Responsibility for delivery of overall technical solution on schedule and time
• Knowledge in developing enterprise solution architecture design for solving complex business problems considering re-use, scalability, reliability, innovation and emerging technology trends
• Evaluates solutions to ensure that they are in alignment with the broader organization's mission, strategy / objectives, capabilities and processes using industry recognized architectural models and roadmaps
• Works with the business to understand and solve complex problems, by presenting various solution options and technical concepts in a comprehensible manner
• Evaluates emerging technologies and drive digital transformation while providing solutions to problems with innovative and creative ideas
• Works closely and continuously with the business to focus on meeting business requirements and incorporating broader aspects such as data privacy & sovereignty, business continuity, information security, integration with other systems, etc.
• Recognizes industry technology trends and emerging technologies, understands how businesses can adopt them
• Capable to work across multiple projects / engagements with varied stakeholders.
• Oversight on the implementation through periodic reviews and due diligence checks to confirm the developed solution complies with architectural design

Requirements:

• Experience of Design & development of MVC, REST API services on Node.js based framework(FeathersJS/ExpressJS)
• Experience of Object oriented programming
• Proven ability to deliver in a fast-paced development environment
• Strong programming skills (Javascript, CSS, HTML, ReactJS)
• Experience with SQL based database
• A positive attitude, and a team player
• Experience with scalable architectures using API management, container orchestration (e.g. Kubernetes, Cloud Foundry etc.), API management, microservice frameworks, etc.
• Broad and extensive knowledge of the software development process and its technologies & engineering practices like DevOps, Continuous Integration & Delivery
• Experienced in client-side app design and development in Angular, ReactJS, NodeJS etc.
• Significant experience in presenting ideas, products, concept papers to varied audiences
• Software development full lifecycle methodologies, patterns, frameworks, libraries and tools