Sr. Backend Egineer

Python Software Engineer (3–5 Years Experience)

Location: [Pune]

Role Overview

We are seeking skilled Python engineers to join our core product team. You will work on backend services, API development, and system integrations, contributing to a codebase of over 250,000 Python lines and collaborating with frontend, DevOps, and native code teams.

Key Responsibilities

·    Design, develop, and maintain scalable Python backend services and APIs

·    Optimize performance and reliability of large, distributed systems

·    Collaborate with frontend (JS/HTML/CSS) and native (C/C++/C#) teams

·    Write unit/integration tests and participate in code reviews

·    Troubleshoot production issues and implement robust solutions

Required Skills

·    3–5 years of professional Python development experience

·    Strong understanding of OOP, design patterns, and modular code structure

·    Experience with MongoDB (PyMongo), Mako, RESTful APIs, and asynchronous programming

·    Familiarity with code quality tools (flake8, pylint) and test frameworks (pytest, unittest)

·    Experience with Git and collaborative development workflows

·    Ability to read and refactor large, multi-module codebases

Nice to Have

·    Experience with web frameworks (web.py, Flask, Django)

·    Knowledge of C/C++ or C# for cross-platform integrations

·    Familiarity with CI/CD, Docker, and cloud deployment

·    Exposure to security, encryption, or enterprise SaaS products

What We Offer

·    Opportunity to work on a mission-critical, enterprise-scale product

·    Collaborative, growth-oriented engineering culture

·    Flexible work arrangements (remote/hybrid)

·    Competitive compensation and benefits

Role : Nodejs developer

Please find below the JD for the Nodejs developer..

 Role: NodeJs Developer 

We are looking for a Node.js Developer responsible for managing 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. A basic understanding of front-end technologies is necessary as well. Responsibilities

 • Collaborate with other members of the team, such as front-end developers

 • Writing reusable, testable, and efficient code 

• Design and implementation of low-latency, high-availability, and performant applications 

• Implementation of security and data protection

 • Integration of data storage solutions • Writing unit test cases • Documenting application changes and developing updates. 

Skills 

• Strong proficiency with JavaScript 

• Experience of Node.js and frameworks available such as Express

 • Practical experience with REST, PostgreSQL, WebSocket, MongoDB, Redis. 

• Understanding the nature of asynchronous programming and its quirks and workarounds 

• User authentication and authorization between multiple systems, servers, and environments 

• Integration of multiple data sources and databases into one system 

• Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform • Creating database schemas that represent and support business processes

 • Implementing automated testing platforms and unit tests

 • Proficient understanding of code versioning tools, such as Git

 • Good understanding of front-end technologies, such as HTML5, and CSS3  

Roles and Responsibilities 

1) Understand client requirements and functionalities. 

2) Write well-designed, testable, efficient code. 

3) Responsible for solving complex technical issues. 

4) Ensure quality projects are delivered within defined timelines. 

5) Active involvement in client communication to understand functional requirements. 

6) Maintain high standards of quality for code, documentation and other deliverables.

At least 3 years' experience as a Node.js developer.

Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.

Mandatory experience in MongoDB and MySql.

Knowledge of front-end technologies such as HTML5 and CSS3.

Superb interpersonal, communication, and collaboration skills.

Exceptional analytical and problem-solving aptitude.

Job Title: Node.js Developer

Company Overview:

Join Code B, a leading software development company specializing in tailored solutions for businesses worldwide. We're seeking a skilled Node.js Developer to join our dynamic team and contribute to the development of innovative software solutions.

Position Overview:

As a Node.js Developer at Code B, you will be responsible for designing, developing, and maintaining server-side applications using Node.js. You will collaborate with cross-functional teams to deliver high-quality software solutions that meet client requirements.

Responsibilities:

• Designing and implementing scalable and efficient server-side applications using Node.js
• Developing RESTful APIs to support front-end applications
• Collaborating with front-end developers to integrate user-facing elements with server-side logic
• Writing reusable, testable, and efficient code
• Troubleshooting and debugging issues to ensure smooth application performance
• Staying updated on emerging technologies and best practices in Node.js development

Requirements:

• Proficiency in Node.js and JavaScript
• Strong understanding of asynchronous programming and event-driven architecture
• Experience with Express.js or other Node.js frameworks
• Knowledge of MongoDB or other NoSQL databases
• Familiarity with version control systems such as Git
• Excellent problem-solving and communication skills
• Bachelor's degree in Computer Science, Engineering, or a related field (preferred)
• Prior experience in Agile/Scrum development methodologies (preferred)

Benefits:

• Competitive salary based on experience and skills
• Opportunity to work on challenging and innovative projects
• Collaborative and supportive work environment
• Professional development opportunities and training programs
• Health insurance, retirement plans, and other benefits package

Join Code B and be part of a team that is passionate about delivering excellence in software development. Apply now and take your career to the next level!

Role Overview 

As a Senior Backend Engineer, you will be working closely with our core team in building products from  scratch into large-scale platforms and solving business problems leveraging new and innovative  technology. More than anything, we are looking for engineers that are eager to learn and build a  meaningful company. We are a small team and encourage engineers to wear many hats 

Responsibilities  

• Design and build highly reliable and performant applications that deliver a great user experience.
• Own large technical deliverables and execute in a structured manner.
• Take the accountability of the overall health of the applications you build.
• Platformize components as libraries, utilities and promote reuse.
• Be able to conceptualize and develop prototypes quickly

Skills & Requirements

      ▪ Work Experience between 2 to 6  years in large scale applications with desire to work  in fast paced startups  

▪ Experience/Knowledge of Node.JS, Express .JS, AWS, MongoDB.

      Deep understanding of your tools: Languages, frameworks, systems.

Role description:

We are looking for Senior Software Engineer with expertise and experience in designing, developing and testing applications including new developments, enhancements, maintenance and support. The role involves continuous collaboration with team, partners.

Candidate description:

Responsibilities

• Building interactive consumer data from multiple systems and RESTfully abstract to the UI through a Node.js backend
• Address and improve any technical issues
• Strong commitment to quality and delivery
• Collaborate well with engineers, and specialists to design and create advanced, elegant and efficient system
• Create Unit and Integration tests to ensure the quality of code
• Be responsive to change requests and feature requests
• Write code that is cross-platform and cross-device compatible
• Ability to wear many hats and learn new technologies quickly
• Used CI/CD and AWS platform

Qualifications

Experience

• 4-8 years of experience in IT industry
• Experience with modern frameworks and design patterns, minimum one-year experience with MERN Fullstack paradigm

Requirements

• In depth working knowledge of NodeJS 
• Database – MongoDB, SQL, postgre

• Obsession with lean, clean and organized code

• Solid Understanding of HTTP protocol and how server-side code is processed on the client

• Knowledge of the following will be considered as an advantage:
• Experience with cloud technologies also a plus
• Creating secure RESTful-based web services in XML and JSON, Javascript,
• Creating Unit test cases

• Programming experience : 5 to 8 years of programming experience
• Strong technical knowledge in any of the following programming languages : Ruby on Rails /Python/Java and willing to learn and work in Node.js.
• Good Programming aptitude
• Have experience designing and building large scalable web services.
• Have an in-depth understanding of database technologies (SQL and NoSQL) 
• Have experience building RESTful APIs and have good knowledge of RESTful design patterns.
• Be able to communicate and work well within a team
• Brownie points if you have worked on Typescript & Nest.js