Full Stack Developer

Job Title: Software Development Engineer – III (SDE-III)

Location: Sector 55, Gurugram (Onsite)

Work Timings: Regular day shift, 5 days working

About Master-O

Master-O is a next-generation sales enablement and microskill learning platform designed to empower frontline sales teams through gamification, AI-driven coaching, and just-in-time learning. We work closely with large enterprises to improve sales readiness, productivity, and on-ground performance at scale.

As we continue to build intelligent, scalable, and enterprise-ready products, we are looking for a seasoned SDE-III who can take ownership of complex modules, mentor engineers, and contribute to architectural decisions.

Role Overview

As an SDE-III at Master-O, you will play a critical role in designing, building, and scaling core product features used by large enterprises with high user volumes. You will work closely with Product, Design, and Customer Success teams to deliver robust, high-performance solutions while ensuring best engineering practices.

This is a hands-on role requiring strong technical depth, system thinking, and the ability to work in a fast-paced B2B SaaS environment.

Required Skills & Experience

• 4–5 years of full-time professional experience in software development
• Strong hands-on experience with:
• React.js
• Node.js & Express.js
• JavaScript
• MySQL
• AWS
• Prior experience working in B2B SaaS companies (preferred)
• Experience handling enterprise-level applications with high concurrent users
• Solid understanding of REST APIs, authentication, authorization, and backend architecture
• Strong problem-solving skills and ability to write clean, maintainable, and testable code
• Comfortable working in an onsite, collaborative team environment

Good to Have

• Experience working with or integrating LLMs, AI assistants, or Agentic AI systems
• Experience with cloud platforms and deployment workflows
• Prior experience in EdTech, Sales Enablement, or Enterprise Productivity tools

Why Join Master-O?

• Opportunity to build AI-first, enterprise-grade products from the ground up
• High ownership role with real impact on product direction and architecture
• Work on meaningful problems at the intersection of sales, learning, and AI
• Collaborative culture with fast decision-making and minimal bureaucracy
• Be part of a growing product company shaping the future of sales readiness

At Pipaltree, we’re building an AI-enabled platform that helps brands understand how they’re truly perceived — not through surveys or static dashboards, but through real conversations happening across the world.

We’re a small team solving deep technical and product challenges: orchestrating large-scale conversation data, applying reasoning and summarization models, and turning this into insights that businesses can trust.

We’re looking for a Senior Fullstack Engineer who loves crafting delightful, high-performance applications that can handle thousands of concurrent users — and who thrives at the intersection of elegant UX and robust backend systems.

You’ll work closely with our AI, data, and product teams to build responsive, real-time interfaces that bring brand intelligence to life.

Requirements:

• Deep expertise in Next.js, React, Node.js, and TypeScript
• Experience architecting systems that handle thousands of concurrent users with low latency
• Strong understanding of web performance, caching, and asynchronous data flows
• Familiarity with databases (MongoDB/Postgres) and API design (REST or GraphQL)
• Strong product intuition — you care about UX, not just functionality
• Bonus: exposure to AI/LLM integrations, WebSockets, or event-driven architectures

• Must have 5 to 10 years of experience on building highly scalable web based enterprise applications using Java/J2EE, Javascript

• Must have experience on front end development using javascript, ReactJS

• Architect and co-create, a highly scalable, available, resilient & distributed applications and multi-tenant Platforms
• Highly hands on with coding/designing, troubleshooting, debugging, monitoring, leading and developing a large scale multi-tenant software components on the Platform in Agile based methodology to provide self-service capabilities (MUST HAVE)
• Must have knowledge of Data structures, must have ability to solve data structure programs on platforms like hakerrank, leetcode  (MUST HAVE)
• Proficiency in engineering practices and writing high quality code, with expertise in Java/J2EE.

• Exposure to NOSQL DB and Relational database

• Exposure to RabbitMQ ,Kafka and Redis Cache

• Working in a team environment, contribute significantly to application solution design and to the high-level design of application software.
• Detailed design, code and test of Cloud Platform software. Provide automated test software in conjunction with application software.

Bookeventz is looking for a rock star coder to work closely with the founders to build on our core platform and mobile applications. A Techie who has an Expert understanding of Server Logics, REST APIs and core web technologies.

Should have a great understanding of MEAN/MERN Stack.

Our Tech Stack:

PHP, MySql, CodeIgniter, React.js, Node.js, ExpressJS, React Native, Javascript, HTML5, CSS3, REST API, AWS Server Management (RDS, Lambda, API Gateway), Ubuntu, Git, CI/CD Good To have: Python, Payment Gateway.

Few Challenges we are working on right now:

- Working on various optimization to improve page speed.

- Improving Server Response & Load balancing.

- Server-side development on various projects.

- Customized CRM to increase leads handled per salesperson to double a day.

- Create a platform for users to create their custom event website.

Job Objectives:

- Integration of user- facing elements developed by front- end developers with server- side logic

- Optimize web applications to maximize speed and scale. Support diverse clients from high- powered desktop computers to small mobile devices

- Optimization of the application for maximum speed and scalability

- Implementation of security and data protection

- Collaborate with senior management, operations & business team

- Building Rest APIs and maintain Database optimizations

Looking For:

- Great understanding of Node, react, Express, Socket.io, MVVM framework

- Worked on e- commerce website, server handling and deployments scripts

- The one who has worked on customer facing product for 2 years

- Strong knowledge of MEAN stack (Min 3 yrs professional working experience) with basic understanding of LAMP.

- Experience designing scalable, fault tolerant systems and databases.

Key Responsibilities:

• Design low level specification for the feature/module in consultation with product architect(s).

• Closely work with product managers/owners, architect(s) to understand the business requirements and code optimally.

• Propose and implement different algorithms in software code for high performing, high throughput, and low latency product features.

• Should be able build, make enhancements and maintain existing native web application user interface based on NodeJS, JavaScript or TypeScript, Angular, React, and Next/Vue.

• Develop and maintain generic solutions and utilities that can be integrated into any product.

• Integrate intelligent product performance indicators into the product to periodically monitor and take preemptive actions.

Key skills and experience required for the job:

• Technology: OOAD, Java/J2EE, Data Structures and Algorithms, Design Patterns, Spring Boot, Microservices/Cloud Native architecture, Cloud Foundry, Docker, K8S, RDBMS, SQL, NoSQL, Redis/HazleCast, jUnit, Mockito, Rabbit MQ, JMS, Apache Camel, KAFKA, WebSocket messaging, gRPC, GraphQL, Angular/React/Vue.js

• Source Control: Git, GitLab, GitHub etc.

• Design: UML, ArchiMate, EA Sparx, MS Visio, Lucid Chart, Figma

• DevSecOps: GitHub Workflows, Helm, Jenkins, CloudBees Flow, uDeploy, Nexus Repo, Site Reliability etc.

• Cloud Technologies: MS Azure, AKS, Azure Event Hub/Grid, Azure Storage, GCP, PCF, AKAMAI, APIGEE or equivalent.

• Code Quality: Sonar, MF Fortify, SAST, DAST

• Process: Safe Agile, DevOps, TDD and BDD

• Experience: 6 – 10 Years of software product development using Java/J2EE along with a minimum of 2 years of web user interface development using any TypeScript framework.

• Education: Bachelors/master’s in engineering or equivalent.

• Soft Skills: Communication, Analytical thinking, Problem Solving, Judgement & Decision Making, Planning & Organizing and Teamwork

Nice to have skills for the job:

• APM : Knowledge of AppDynamics, Grafana, Dynatrace, Splunk, Elk

As a full stack engineer, you will build new features for our internal tools, including https://medium.com/@Smartcow_ai/tlt-lightning-ff47659f7804">lightning. Architect, develop, test, and deliver independently.

Responsibilities

• Design, test, build and deploy web applications for internal and external use
• Design and implement scalable APIs and backend services
• Convert high-level requirements into detailed, usable and intuitive UI
• Involved in the execution of project from design stage

Skills: 

• 3+ years full-stack python developer with exposure to web frameworks like Django or Flask
• Experience building APIs for rapidly iterating product and restful APIs and development of service layer using python's flask framework
• Proficient in writing unit test cases using Pytest package
• Proficient on Reactjs, Angular, & VueJs (GTH),
• Knowledge of DB and API schema designing
• Knowledge with OpenCV and ML workflow is added advantage
• HTML/CSS/JavaScript and JavaScript framework
• Database level programming using both SQL (MySQL, PostgreSQL) and No SQL (MongoDB/Casandra) and designing the database level stored procedures and persistence logic.
• Knowledge with Nvidia libraries is an added advantage
• Experience working with Web Application development, docker, Unix/Linux environments
• Understanding of machine learning, information retrieval, neural networks, networking, developing large software systems (stands out from crowd)

• Own and implement features used by large customers like Truecaller, Mozilla, Zomato, Netflix, etc.
• Performance, Security and Usability goals are in DNA.
• Full ownership and accountability of Microservices which includes day-to-day operations and maintenance.
• Business and technical Metric definitions and reviews.
• Drive CI & CD Evaluate technologies and development stacks for API-based platform which scales to 100,000 transactions per second.
• Perform push-button deployments of any version of the software to any environment on demand.
• Design and build web apps that are scalable and puts user experience front and center.
• Develop modular UI components for company-wide reuse.
• Evolve a common design language for UI across apps.
• Establish and advocate front-end coding guidelines.
• Meld UX and great-looking UI while keeping excellent code quality.
• Own end-to-end life cycle of the product from requirement analysis, design, development, test, release, and maintenance.
• Develop reusable tools/libraries
• Identify opportunities for automation and collaboration points.
• Continuously improve cycle time, throughput, and code quality.
• Continuously improve value-adding-activities/non-value-adding activities ratio.

• 4 - 6 years of experience in large-scale distributed systems.
• Proficient in Python/Golang/Java/ http://node.js/">Node.js 
• Understanding of CSS, Advanced Javascript, http://vue.js/">Vue.js, http://react.js/">React.js, and other web technologies.
• Understanding of Rest based API Architecture
• Writing high-performance, reliable and maintainable code.  
• Excellent microservices pattern understanding.  
• Ability to define cross-core contracts and bring them to closure through collaboration.
• Good knowledge of database structures, theories, principles, and practices.  
• Experience working with AWS components [EC2, S3, RDS, SQS, ECS, Lambda].
• Analytical and problem-solving skills  
• Good aptitude in multi-threading and concurrency concepts.  
• Working knowledge of Git and proficiency with at least one build server: Jenkins/Travis/Bamboo.
• Good to have a telecom background