Python Developer

We’re building a powerful, AI-driven communication platform — a next-generation alternative to RingCentral or 8x8 — powered by OpenAI, LangChain, and SIP/WebRTC. We're looking for a Full-Stack Software Developer who’s passionate about building real-time, AI-enabled voice infrastructure and who’s excited to work in a fast-moving, founder-led environment.

This is an opportunity to build from scratch, take ownership of core systems, and innovate on the edge of VoIP + AI.

What You’ll Do

• Design and build AI-driven voice and messaging features (e.g. smart IVRs, call transcription, virtual agents)
• Develop backend services using Python, Node.js, or Golang
• Integrate OpenAI, Whisper, and LangChain with real-time VoIP systems like Twilio, SIP, or WebRTC
• Create scalable APIs, handle call logic, and build AI pipelines
• Collaborate with the founder and early team on product strategy and infrastructure
• Participate in occasional in-person strategy meetings (Delhi, Bangalore, or nearby)

Must-Have Skills

• Strong programming experience in Python, Node.js, or Go
• Hands-on experience with VoIP/SIP, WebRTC, or tools like Twilio, Asterisk, Plivo
• Experience integrating with LLM APIs, OpenAI, or speech-to-text models
• Solid understanding of backend design, Docker, Redis, PostgreSQL
• Ability to work independently and deliver production-grade code

Nice to Have

• Familiarity with LangChain or agent-based AI systems
• Knowledge of call routing logic, STUN/TURN, or media servers (e.g. FreeSWITCH)
• Interest in building scalable cloud-first SaaS products

Work Setup

• 🏠 Remote work (India-based, must be reachable for meetings)
• 🕐 Full-time role
• 💼 Direct collaboration with founder (technical)
• 🧘‍♂️ Flexible hours, strong ownership culture

Backend Developer/Full Stack Developer Job Description - We are looking for developers who can convert complex business problems into tech deliverables, build scalable systems and work in a fast-paced environment.

Responsibilities:

Building scalable and robust applications.

Building and maintaining reusable code for future use.

Actively participate in code reviews.

Troubleshooting and debugging.

Following predefined design guidelines.

Timely delivery of tasks

Proficient and fast in implementing required processes across teams.

Innovative and open to trying/learning new things to improve the system or processes.

Skills required

Proven experience as a Full Stack Developer/Backend Developer

Experience with large-scale architectural patterns, event-driven microservices, well-designed APIs, and efficient algorithms.

Knowledge of at least 1 Object Oriented Programming language (e. g. Node.js, Python)

Knowledge of at least 1 Relational database and familiarity with NoSQL databases.

Problem-solving skills.

Excellent communication and teamwork skills.

Git/BitBucket

Optional skills -

React/React Native

Docker

Terraform

CI/CD

AWS

Web technologies

Must haves - Javascript, Object Oriented Programming, Git

Roles and Responsibilities
1. Ability to work on diverse backend stack such as Node JS, Express JS
2. Ability to work on diverse frontend stack such as Meteor JS, React JS, HTML5, CSS3

3. Ability to deliver quick POC’s using cutting edge technologies.

4. Preparing reports, manuals and other documentation on the status, operation and maintenance of software.

5. Design, develop, and unit test applications in accordance with established standards

6. Developing, refining, and tuning integrations between applications. Analyzing and resolving technical and application problems.

7. Ability to debug the application.

8. Should have complete knowledge of developing RESTful Services.

9. Should be able to also work in agile development methodology.
10. Work with designated JavaScript framework to design, develop, and debug web applications
11. Work with the team to manage, optimize, and customize multiple web applications
12. Manage end to end module lifecycle management of the product
13. Push and pull codes via Git repository

Competency Requirements

1. Experience in NodeJS and development using MeteroJS
2. Experience in front end frameworks - Meteor JS
3. Experience in client/server application development
4. Knowledge of agile development methodologies
5. Knowledge of unit testing theory
6. Knowledge of AWS cloud
7. Knowledge of other frontend frameworks like ReactJS, AngularJS will be an advantage

We are looking for a Java Application Developer with a minimum of 2 years of experience.

Must have experience in the Retail domain.

Java, Springboot, MVC, JSP, Postgres SQL and Oracle Skills are required.

AWS knowledge is a plus.

Should be willing to travel to the client's location whenever required.

Responsibilities

• Understand both functional and non-functional requirements and translate them into tasks that can be worked upon individually or in a team.
• Use your skills in programming and system design to develop robust and scalable software.
• Perform POCs and build solutions that require integration with other systems.
• Provide estimations for a Sprint or Tasks, and share inputs in design and architectural choices.
• Work in a fast-paced environment and contribute to all phases of SDLC.
• Maintain minimal yet essential engineering documentation to complement the product.
• Collaborate with engineers, product, and business teams as part of Agile delivery.
• Perform code reviews and provide guidance to the team in building software and following the defined process.
• Carry an ownership attitude when working on any solution.

Requirements

• Strong at problem-solving using Java 8 and above.
• Good understanding of SDLC using agile methodologies iterative development.
• Basic skills in HTML, CSS, and JavaScript are desired.
• Hands-on knowledge of using Spring Boot or Quarkus for building Microservices or API driven solutions.
• Good knowledge of SQL and experience in using any RDBMS like MySQL, PostgreSQL.
• Understanding or exposure to Cloud-Native development using AWS is an added advantage.
• Any experience in working on projects built using Microservice architecture, esp if using React and Java with Docker is an added advantage.

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. You will also be responsible for integrating the front-end elements built by your co-workers into the application. Therefore, a basic understanding of front-end technologies is necessary as well.

The Candidate should have knowledge and experience with specified technologies:

• Great at building server-side code in NodeJs & ExpressJs
• Experience with NoSQL databases such as MongoDB
• Experience in building and consuming REST API
• Authentication and authorisation using JWT tokens
• Proficient understanding of code versioning tools, such as Git
• DevOps knowledge especially in AWS EC2 and S3
• Knowledge of headless Chrome, Puppeteer will be huge plus
• Experience in HTML, CSS
• Understanding of React will be a bonus

Job Details:

 Core java – Concepts like oops, Collection,Expection handling, Java 7 well versed, Webservice, SQL

1. Spring – Concepts like spring boot, spring core, Spring MVC
2. ORM Tool like -Hibernate or Spring JPA
3. Front End Areas like angular 4 and above version should be strong.
4. Microservice is mandate at least a knowledge or Experience
5. Kafka or Rabbit MQ experience or knowledge is must
6. RDBMS or Nosql Or oracle or SQL experience is must

Please revert back with below details.
Total Experience:
Relevant Experience:
Current CTC:
Expected CTC:
Any offers: Y/N
Notice Period:
Qualification:
Present Company Name:
Designation:
Domain
Reason for job change:
Current Location:

Thank & Regards

Khadri SH

Sr Executive – TAG

IsquareSoft|Bangalore