NodeJS 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

Role Description

We are seeking a full-time AI Developer specializing in Generative AI and Large Language Models (LLMs) to join UpSolve Solutions in Mumbai. This client-facing, on-site role involves designing, developing, and deploying AI models, specifically focusing on GenAI and LLMs. The AI Developer will leverage expertise in machine learning, natural language processing, and data science to build cutting-edge AI solutions that drive business innovation and solve complex challenges.

Qualifications

• Proficiency in Python
• Strong projects in Flask + JS
• Excellent problem-solving, critical thinking, and analytical skills
• Strong communication and presentation skills, with the ability to convey technical concepts to non-technical stakeholders
• Bachelor's or Master’s degree in a relevant field (e.g., Computer Science, Artificial Intelligence, Data Science)

What you'll do:

· Perform complex application programming activities with an emphasis on mobile development: Node.js, TypeScript, JavaScript, RESTful APIs and related backend frameworks

· Assist in the definition of system architecture and detailed solution design that are scalable and extensible

· Collaborate with Product Owners, Designers, and other engineers on different permutations to find the best solution possible

· Own the quality of code and do your own testing. Write unit test and improve test coverage.

· Deliver amazing solutions to production that knock everyone’s socks off

· Mentor junior developers on the team

What we’re looking for:

· Amazing technical instincts. You know how to evaluate and choose the right technology and approach for the job. You have stories you could share about what problem you thought you were solving at first, but through testing and iteration, came to solve a much bigger and better problem that resulted in positive outcomes all-around.

· A love for learning. Technology is continually evolving around us, and you want to keep up to date to ensure we are using the right tech at the right time.

· A love for working in ambiguity—and making sense of it. You can take in a lot of disparate information and find common themes, recommend clear paths forward and iterate along the way. You don’t form an opinion and sell it as if it’s gospel; this is all about being flexible, agile, dependable, and responsive in the face of many moving parts.

· Flexible and willing to accept change in priorities, as necessary

· Demonstrable passion for technology (e.g., personal projects, open-source involvement)

· Enthusiastic embrace of DevOps culture and collaborative software engineering

· Ability and desire to work in a dynamic, fast paced, and agile team environment

· Enthusiasm for cloud computing platforms such as AWS or Azure

· Excellent written and verbal communications skills

What you'll do:

·         Perform complex application programming activities with an emphasis on mobile development:  Angular, Node, TypeScript, JavaScript, Apache Cordova, RESTful APIs and more

·         Assist in the definition of system architecture and detailed solution design that are scalable and extensible

·         Collaborate with Product Owners, Designers, and other engineers on different permutations to find the best solution possible

·         Own the quality of code and do your own testing. Automate feature testing and contribute UI testing framework

·         Become a subject matter expert for our mobile applications

·         Deliver amazing solutions to production that knock everyone’s socks off

·         Mentor junior developers on the team

What we’re looking for:

·         Amazing technical instincts. You know how to evaluate and choose the right technology and approach for the job. You have stories you could share about what problem you thought you were solving at first, but through testing and iteration, came to solve a much bigger and better problem that resulted in positive outcomes all-around.

·         A love for learning. Technology is continually evolving around us, and you want to keep up to date to ensure we are using the right tech at the right time.

·         A love for working in ambiguity—and making sense of it. You can take in a lot of disparate information and find common themes, recommend clear paths forward and iterate along the way. You don’t form an opinion and sell it as if it’s gospel; this is all about being flexible, agile, dependable, and responsive in the face of many moving parts.

·         Confidence, not ego. You have an ability to collaborate with others and see all sides of the coin to come to the best solution for everyone.

·         Flexible and willing to accept change in priorities, as necessary

Basic Qualifications: 

·         Minimum B.S. / M.S. Computer Science or related discipline from accredited college or University

·         At least 6 years of experience designing, developing, and delivering web applications with Angular, Node, Typescript, IONIC and JavaScript

·         At least 2 years of experience building iOS-based applications utilizing hybrid technologies

·         At least 2 years of experience with AWS and/or Openshift

·         Experience integrating with native device API’s (iOS)

·         Experience with front-end and/or mobile-specific testing frameworks

·         Strong experience in object-oriented design and development

·         Knowledge of building and consuming RESTful APIs

·         Excellent sense of web design, passionate about creating and refining great mobile user experiences.

·         Ability to manage multiple tasks and consistently meet established timelines   

·         Strong collaboration skills

·         Excellent written and verbal communications skills

Preferred Qualifications:

·         Proficient with Apache Cordova framework

·         Built or maintained custom Cordova plugin

• Demonstrable knowledge of native coding background in iOS

·         Understanding of Apple certificate and profile management

·         Experience developing and deploying applications within Kubernetes based containers

·         Experience in Agile and SCRUM development techniques

We are hiring IN OFFICE ONLY.

Office located in the beautiful Astra Towers in Rajarhat Kolkata.

We are looking for Senior Laravel Developers that have experience with Laravel Framework PHP, and VueJs.

You will be working right away with other senior Laravel Developers that know the products. You will be learning the projects, and helping them clean up and polish our tech better. We are a product based company.

A little about us:

Klizo Solutions has over 50 employees and is located in the New Town area, near CC2. Our employees range from graphic designers, back-end developers, iOS and Android Developers, and more. We are primarily a product-focused company. Our founder is from the USA and spends about 6 months a year here going back and forth. We develop technologies around his products and develop products for a few other clients. We are looking to expand to more locations, and are hiring for those reasons. You can see a company video here: https://klizos.com/about-us/

Preferred & Required knowledge and Duties:

• MVC Structure
• SQL concept
• Eloquent Relationships
• HTTP middleware
• Basic knowledge of JQuery
• Basic command of Laravel (How to create Model, Controller, migration, middleware )
• Experience of Vue.js
• Experience with Git
• Experience integrating third-party APIs
• Experience with payment APIs

Required Shifts:

We are expected to work Monday - Friday

We may rarely be needed on a Saturday if a project is required.

BONUS Knowledge (not required):

• MongoDB
• Worked with Jira
• Knows Github / Repo / Source control
• Worked with Bitbucket

Job Types: Full-time, Permanent, In Office

Benefits

• Bonuses based on performance
• Additional training will be available and may be required
• Clean office, professional hardware, and a positive team.

We are a highly innovative Fashion tech startup, looking for a senior developer to develop the platform and drive the technology initiatives of the company

Key focus areas: Product Architecture, Full-Stack development, Product Deployment and innovation in technology

Roles & Responsibilities:

1. Work as a Sr. Software Developer with strong coding capabilities and cloud capabilities
2. Design, architect and implement the product platform from the scratch
3. Ownership of end to end design, implementation, and development
4. Foster the development of highly scalable and performance-driven product
5. Work closely with the business team to understand the business requirement and vision of the product
6. Collaborate with the Founder to create an effective product road map and release plans
7. To build, lead and mentor the development team  
8. Excellent team management and interpersonal skills

Must-have skills

1. Extensive and deep knowledge of building highly scalable and performance-centric web platform
2. Proficient in designing the monolithic or microservices architecture
3. Understanding the nitty-gritty of data and its useful presentation
4. Deep insight into search and analytics systems
5. Basic understanding of building a graphical representation of data
6. Strong understanding of the data and its usage

Tools and Platform

1. Strong experience in designing and implementing web-based solutions based on any full-stack
2. Excellent understanding and strong working exposure to the AWS platform and it’s a tool like cloud front S3 etc.
3. Proficient and good knowledge of working with databases 
4. Hands-on experiences on at least one DBMS
5. Exposure to web scrapping tools and framework
6. Search and indexing tools like elastic search
7. Exposure to HTML is a must
8. Prior experience of designing, developing and deploying platforms 
9. Knowledge of making SEO friendly and responsive web platforms
10. Experience in designing, scaling and securing APIs