Fullstack 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

We are looking for a Fullstack Developer experienced with Fullstack JavaScript, Cloud and IoT solutions. For the agile development of our web, mobile, and cloud applications and IoT products, building efficient, reliable and scalable solutions. A hands-on coding role, where you will build and manage your own team.

Tasks:

• Development of modern JavaScript-based applications in the back-end
• Development, implementation and optimisation of innovative IoT products, web apps and new features
• Technical product design, solution architecture, specifications and implementation of Livello solutions
• Work with a cross-functional team to define, build, test, and deploy universal applications
• Version control with Git is part of your daily work and continuous integration
• Ensure the implementation of technical standards, quality assurance and best practices.

Requirements:

• Bachelor's degree in Computer Science or comparable field of study
• 3-4 years experience in agile software development.
• Proficiency in Javascript, Node.js, TypeScript, Reactjs, Reactnative and Nest.js, MongoDB.
• Experience with GraphQL and docker as well as state management solutions (Redux, Saga)
• Experience with test and deployment automation (Gitlab, Fastlane, Jest).
• Experience with MongoDB or any equivalent Database.
• Ability to work cooperatively and independently, analytical thinking, willingness to lead and take on responsibility
• Fluent in English.

Nice to have:

• Experienced in IoT-to-Cloud managed services, Microservices, Kubernetes and Docker on GCP / AWS
• Knowledge of IoT device management and message brokers like AMQP or MQTT.

Benefits

• A responsible position in a fast-growing and highly innovative start-up
• An agile and diverse team with colleagues from all over the world, working with our main office in Germany
• English speaking open work environment, with flat hierarchies and short decision-making paths
• Advanced technology stack leveraging cutting-edge IoT hardware and software
• Creative freedom for own ideas, projects and personal development.

• Understand fundamental design principles and best practices for developing backend servers and web applications  Gather requirements, scope functionality, estimate and translate those requirements into solutions.  
• Implement and integrate software features as per requirements. 
•  Deliver across the entire app life cycle.
•   Work in a product creation project and/or technology project with implementation or integration responsibilities, Improve an existing code base, if required, and ability to read source code to understand data flow and origin
• Design effective data storage for the task at hand and know how to optimize query performance along the way.  
• Follow an agile methodology of development and delivery  
• Strictly adhere to coding standards and internal practices; must be able to conduct review code  Mentor and possibly lead junior developers  
• Contribute towards innovation  Performance optimization of apps 
•  Explain technologies and solutions to technical and non-technical stakeholders  
• Diagnose bugs and other issues in products  
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency

Must have / Good to have:

• 4+ years experience with Core Python development  Design and implementation of high-availability, and performant applications on Unix environment  
• Good with multithreading and data structures  
• Develop back-end components to improve responsiveness and overall performance  
• Familiarity with database design, integration wiht applications and python packaging.  Familiarity with front-end technologies (like JavaScript and HTML5), REST API, security considerations  
• Familiarity with functional testing and deployment automation frameworks  
• Experience in development for 3-4 production ready application using Python as programming language  
• Experience in writing unit test cases including positive and negative test cases 
•  Experience of CI/CD pipeline code deployment (Git, SVN, Jenkins or Teamcity) 
•  Experience with Agile and DevOps methodology 
•  Very good problem-solving skills  
• Experience with Web technologies is a plus  
• Experience with ELK stack is a plus.

We are seeking a highly skilled and experienced Full Stack Developer to join our dynamic team. As a Full Stack Developer, you will be responsible for designing, developing, and implementing software solutions across the entire application stack. You will collaborate with cross-functional teams, including product managers, designers, and other developers, to deliver high-quality, scalable, and maintainable software products.

Responsibilities :

1) Design and develop robust, scalable, and efficient software applications, APIs, and web services using modern technologies.

2) Collaborate with product managers, designers, and other developers to understand project requirements, user stories, and technical specifications.

3) Write clean, maintainable, and well-documented code following best practices and coding standards.

4) Perform thorough testing and debugging to ensure software quality and reliability.

5) Optimize application performance and implement security measures.

6) Stay up-to-date with industry trends and emerging technologies, and continuously improve technical skills.

7) Participate in code reviews to provide and receive constructive feedback.

8) Collaborate with team members to identify and resolve technical issues and bugs.

9) Work in an agile development environment, actively participating in sprint planning, stand-ups, and retrospectives.

10) Contribute to the continuous improvement of development processes and tools.

Requirements :

1) Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent work experience).

2) Proven experience as a Full Stack Developer or similar role, with a strong portfolio of completed projects.

3) Proficiency in front-end technologies such as HTML, CSS, JavaScript, and modern frameworks like React, Angular, or Vue.js.

4) Strong knowledge of back-end technologies such as Node.js, Python, Ruby, or Java.

5) Experience with databases and ORM frameworks (e.g., MySQL, PostgreSQL, MongoDB, SQLAlchemy, Hibernate).

6) Familiarity with cloud platforms (e.g., AWS, Azure, Google Cloud) and serverless architecture.

7) Knowledge of version control systems (e.g., Git) and collaboration tools (e.g., Jira, Trello).

8) Solid understanding of software development principles, design patterns, and best practices.

9) Excellent problem-solving skills and the ability to analyze and resolve complex technical issues.

10) Strong communication skills and the ability to work effectively in a team environment.

Preferred Qualifications :

1) Experience with containerization technologies (e.g., Docker, Kubernetes).

2) Familiarity with DevOps practices and CI/CD pipelines.

3) Experience with Agile/Scrum methodologies.

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.

As a developer at CultureMonkey, you will be joining a world-class team of domain experts who are passionate about technology and people. An ideal day at CultureMonkey will see you working closely with the founding team to ideate and implement new features to enhance our product. As an organization helping top companies build a positive work culture, we are pretty serious about practicing what we preach. Work-life balance is a big deal here!

What you bring to the table:

• Writing and maintaining reliable code that abides to Object Oriented Design.
• Own up implementation of the entire module (comprises front-end and back-end components)
• Identifying and fixing bottlenecks and bugs in the product.
• Collaborate with customer success team to understand and analyze the requirements to build efficient solutions.
• Maintaining APIs.
• Participate in design reviews and architecture discussions.
• Optimize application for performance and scalability.

What it takes:

• Ability to learn and write production-ready code
• Basic understanding of Object oriented programming and MVC.
• Exposure to front-end technologies, such as JavaScript, HTML5, and CSS3.
• Familiar in database concepts and writing SQL queries.
• Strong collaboration and communication skills with an ability to communicate technical information, both written and oral, to technical and non-technical reviewers.

Extra brownie points if you have

• Hands on experience in Ruby on Rails.
• Basic understanding of Elastic-search
• Proficient understanding of Git
• Exposure to RESTful api.

Apart from financial gains, to know more about the benefits of working at CultureMonkey, you can refer to the following link: https://www.culturemonkey.io/life-at-cultureMonkey/

Position: Full Stack developer

Location: Bangalore

Experience:  3 to 5 years, preferably in an agile environment

RESPONSIBILITIES
·     Understanding requirements present in specification documents
·     Knowledge on cloud environment
·     API development for consumption by webapp and mobile apps
·     Database schema design
·     Integration with partner systems based on REST APIs
·     Working with code base across multiple development & staging environments
·     Take part in User Acceptance Testing (UAT)
·     Be part of Production deployment & release activities

TECH SKILLS
·     Must Have:
*       Python and Node Js
*       RDBMS :Postgre SQL/ MongoDB
*       Must have knowledge on AWS or Digital Ocean
*       Good documentation skills
·     Good to have:
*       Javascript
*       RabbitMQ
*       Django
*       Docker
*       Redis
*       Flask
*       nginx
*       graylog