Sr Full Stack Developer MERN/PERN

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

Job Purpose

We are looking for an energetic and self-starter software developer to join our product development practice as a Senior Software Engineer (SSE).

You will get to work with some of the best and knowledgeable tech talent in the financial world and you will build next generation digital services and platforms that will lead the transformation goals for our customers. You will work closely with the engineering, UX, product and test automation communities, as part of the agile team, to lead product design and development and to help the Digital Service Product Owner to deliver and maximize value.

You will drive engineering and architecture best practices for writing and encouraging others to write secure code and dev-ops process while getting opportunities for learning new business domain and topics, to work with industry SMEs and to learn new technology and behavioral skills.

Key Responsibilities

As a Full-stack Developer

• 8+ year’s professional experience in enterprise software design and development in an N-tier architecture environment;
• Understanding of 12-factor app framework is highly desirable
• Must have experience building web applications using .NET core 3.x (.NET 5.0 is better), Web API, HTML5, React OR other JS-based frameworks like Angular
• Must have experience with tools such as Jira, Github, Confluence (or other wiki), SonarQube (or similar), OWASP ZAP (or similar) and Snyk (or similar)
• Experience with data visualization libraries /framework like D3js, Plotly, HighCharts etc. will be an advantage
• Must have experience with SOA and Web Service standards (REST & JSON/SOAP & WSDL/WS-I Basic Profile), and IIS
• Understand the business requirements from the product owner(s)
• Design and implement the system from scratch & build enhancements, features request using modern application frameworks using C# and React with .NET Core, Web API, AWS services etc.
• Participate in both development & maintenance tasks
• Independently troubleshoot difficult and complex issues on production and other environments

As a Technical Lead in the pod

• Must have experience of working in an automated CI/CD environment and with fast moving teams using Scrum/Agile; Experience with AWS and other cloud providers is highly desirable
• Must have extensive experience with object oriented design principles. Ability to articulate the pros and cons of design/implementation options
• Participate in design review and peer code review
• Work collaboratively in a global setting, should be eager to learn new technologies
• Responsible for extending and maintaining existing codebase with focus on quality, re-usability, maintainability and consistency
• Coach teams on best practices and architecture design

As member of the Engineering community

• Must have extensive experience with object oriented design principles.
• Ability to articulate the pros and cons of design/implementation options
• Good understanding and knowledge of areas including but not limited to requirement gathering, designing, development, testing, maintenance, quality control etc.
• Stay up-to-date on latest developments in technology
• Learn and share learnings with the community

Behavioral Competencies

• A self-starter, excellent planner and executor and above all, a good team player
• Excellent communication skills and inter-personal skills are a must
• Must have organizational skills, including multi-task capability, priority setting and meeting deadlines
• Ability to build collaborative relationships and effectively leverage networks to mobilize resources
• Liking and initiative to learn business domain is highly desirable
• Likes dynamic and constantly evolving environment and requirements

Big Picture (The Opportunity) : 

Do you take pride in your web development ability? Would you like to use your skills in an energetic atmosphere? Are you dedicated to the craft, write code that they are proud of and can hit the ground running , you’re in the right place.

What do we want from you ? (Our Expectations) : 

• To manage our back-end services and ensure a seamless interchange of data.
• You will be responsible for developing and coding all server-side logic and also to maintain the central database and respond to requests from front-end developers. 

What are you required to do ? (Your Responsibilities) 

• Writing back-end code and building efficient modules.
• Produce detailed specifications
• Developing back-end portals with an optimized database.
• Integrating data storage solutions.
• Responding to integration requests from front-end developers.
• Updating and altering application features to enhance performance.
• Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality
• Contribute in all phases of the development lifecycle
• Develop and deploy new features to facilitate related procedures and tools if necessary
• Work closely with the IT team in completing projects
• Troubleshoot and fix any issues relating to PHP programs
• Create scripts to facilitate client systems to meet performance and objectives
• Test and develop software for client applications
• Create documentation for software created
• Utilize source debuggers and write or modify client software
• Produce results effectively and within the deadlines set 

• You would get hands on experience of developing software in latest Microsoft technology stack like C#, .NET framework, .NET Core, SQL Server, Web API and React.
• Product development with Agile Methodology in Microsoft technology stack.
• Work with leaders that follow best of the development practices.
• Work in business domains like Banking, Insurance & CRM

Technical Skills:

• We are looking out for suitable candidates having 2 to 6 years of experience in .Net development along with strong MVC & JQuery experience.
• Strong experience developing database driven web-based applications using ASP.NET MVC, C#, OOPS concept, ADO.NET, SQL Server, WCF.
• Excellent exposure in HTML5, CSS, JavaScript, OOJS, JQuery and Object-Oriented Design skills.
• Good to have: ReactJs, ES6, NodeJs

Behavioural Attributes:

• Demonstrated problem solving, analytics and troubleshooting skills.
• Heroic get-it-done and problem-solving attitude.
• Able to do multitask and meet deadlines in a fast-paced environment.
• Ability to work seamlessly in a team environment and creating excellent team dynamics

Position Title

Full Stack Developer

Minimum Qualifications

Bachelor's degree in Computer Science or equivalent practical experience.

1 year of relevant work experience developing software with:

Preferred Qualifications

Master’s degree, further education or equivalent practical experience in Engineering, Computer Science or other technical related field.

Experience with all of the above + the following areas:

1. Full Stack Development (front end and backend),
2. TypeScript
3. React Native
4. Javascript
5. AWS

Note: Development experience with Unix / Linux and the ability to learn other coding languages as needed will be favourable.

About The Job

1. ByzWiz Infratech was founded on the belief that every human is innately and naturally talented and gifted. It is our endeavour to create and deploy products and services that help people monetize their passions, talents and creativity by enabling them to harness the power of the internet.
2. ByzWiz requires software engineers to help develop next-generation technologies that will allow billions of users to connect and conduct businesses online, forming a new paradigm of interaction in order to encourage social economic activity.
3. As an important part of the core development team, your role will extend to all areas of software development activity.
4. We need our engineers to be responsible, proactive and enthusiastic creative thinkers and problem solvers. As we grow, we expect our engineers to take on leadership roles with the ability to form and manage their own teams.

Responsibilities

1. Design, develop, test, deploy, maintain, and improve software and new user-facing features in Byzwiz products.
2. Manage individual priorities, deadlines, and deliverables.
3. Write client-side code for web-based applications, create fast, easy-to-use, high volume production applications, and develop prototypes quickly.
4. Contribute to engineering efforts from planning and organization to execution and delivery to solve complex engineering problems.

About Company

• Vision : Bikayi helps small to medium sized businesses go online and scale their businesses. Bikayi merchants are selling various things from groceries to apparels and electronic items.
• Scale : We are very close to grossing a GMV of 1B dollars on an annual basis. Probably one of your neighbourhood shops is using Bikayi to sell online.
• Fuel : Monetizing the product from early days we have a solid business model and our revenue numbers are growing at a healthy pace. Apart from this we are funded by top investors in the world like Sequoia capital and Ycombinator.
• People : We have a culture which gives you a lot of challenges to solve and at the same time get high rewards.

Fun facts

• 42,59,407 Indians started their online selling journey with Bikayi this year, That is greater than the combined population of Maldives and Monaco
• We witnessed a GMV growth of 5400% and revenue growth of 1100% last year.
• Band Chainsmokers have also invested in Bikayi 🎵

Responsibilities

• Guide the team : Help the junior engineers to unblock them and guide them on best design practices. Help in code reviewing on a regular basis.
• Responsible for code delivery : Pushing deploys on a constant basis. When working in a growth stage company, this part can be challenging as the speed of requirements is high. You will need to make sure you are able to push code on a regular basis.
• Design & Architecture : You need to have technical expertise in the company's tech stack and in general the frontend or backend infrastructures.
• Prepare thorough technical documentation which can be used as a reference by other engineers.
• Own your product : You will be responsible for the success / failure of your team and the product. You will need to work with cross functional teams, understand their requirements and make sure that everybody is on the same page.

Requirements

• Past experience of working for tier 1 / vc funded companies.
• 3+ years of commercial work experience in the relevant domains.
• Continuous past experience of delivering products at a steady pace.
• Experience in the following would be preferred.
• Node Js for Backend Engineers
• React Js for Frontend Engineers

Company Perks

• Macbook
• Flexible hours
• Book reading / personal development stipend
• ESOP pool also available
• Health insurance benefits
• Fully stacked snack kitchen and gaming room
• Free front row tickets to The Chainsmokers concerts in India \m/

NOTE - SALARY IS NEGOTIABLE 

• Company Profile - https://drive.google.com/file/d/1FYi4TuTx2_Kx-mWrOCNiaLK5JtWlJI-5/view?usp=sharing

• upGrad was awarded the Best Tech for Education by IAMAI for 2018-19,
• upGrad was also ranked as one of the LinkedIn Top Startups 2018: The 25 most sought-after startups in India.
• upGrad was earlier selected as one of the top ten most innovative companies in India by FastCompany.
• We were also covered by the Financial Times along with other disruptors in Ed-Tech.
• upGrad is the official education partner for Government of India - Startup India program.
• Our program with IIIT B has been ranked #1 program in the country in the domain of Artificial Intelligence and Machine Learning.

• Writing clean, high-quality, high-performance, maintainable code.
• Develop and support software including applications, database integration, interfaces, and new functionality enhancements.
• Coordinate cross-functionally to insure project meets business objectives and compliance standards. 
• Support test and deployment of new products and features.
• Participate in code reviews.

• A highly talented developer with 6-9 years of hands-on experience in building secure and scalable web based applications using Java in backend and JS based frontend frameworks
• Strong knowledge of Java 8+, databases (SQL and NoSQL) , MySql, Mongo
• Experience working with Cassandra, Spring Boot, Apache Spark, Kafka, RabbitMQ is highly desirable.
• Working knowledge of any one or more of AngularJS/ReactJS/VueJS and CSS3, HTML5.
• Strong experience in data modelling for data storage tools in SQL; experience with noSQL is highly desirable.
• Experience building scalable solutions for 2x, 5x and 10x growth with high quality and flexibility.
• Practitioner of test driven development practices. Experience in creating and adhering to best practices for development.
• Experience working with container technologies like Docker and knowledge of CI/CD processes for automated integration and deployment. Basic knowledge of AWS preferred.
• Strong experience in Microservices (SRP) paradigm.
• Willing to learn new technologies (Golang).