Senior 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

Full Stack Developer responsible for managing back-end services and 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 frontend elements built by your co-workers into the application. Therefore, a basic understanding of frontend technologies is necessary as well.

We are looking to recruit a candidate for a role that will require:

• Create and consume restful APIs
• Design, develop, and maintain internal and external applications
• Build efficient, testable, and reusable modules
• Write high quality, structured application/interface code and documentation
• Identify solutions through research and collaboration that resolves the root of problems as they arise
• Define functional and technical requirements for application software to develop skills and knowledge
• Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality
• Contribute in all phases of the development lifecycle

Requirement

∙ Proficient in Node.JS and ReactJS development stack

∙ 2+ years’ experience designing, querying, and updating databases in MySQL/nosql

∙ Basic understanding of web technologies including HTML, CSS, JavaScript, AJAX etc.

∙ Passion for best design and coding practices and a desire to develop new bold ideas

∙ Good to have knowledge of AWS, Redis, ElasticSearch

• Experience in .Net Core, MVC framework, WebAPI
• Deep understanding of programming principles and OOPS concepts.
• Strong Coding Discipline
• Comprehensive knowledge on Good Practices, Coding guidelines, General Programming Paradigms
• Excellent verbal communication skills and good interpersonal skills.
• Good experience in Error handling & debugging techniques
• Strong Logical, analytical & problem solving skills
• Ability to build well maintained libraries & tools based on the business needs
• Experience in mentoring the teams and helping them
• Azure / AWS DevOps knowledge is desirable but not a must.

·         Architect, develop and deploy software using Django/ Python

·         Strong hands on experience in Django and Python Experience with RDBMS, PostgreSQL, MySQL.

·         Experience with HTML5, HTML, CSS, JavaScript, jQuery.

·         Experience with Linux platform.

·         Experience building responsive web applications with Bootstrap

·         Understanding of Amazon AWS/ EC2 deployment architecture experience is a plus

·         Experience with source control management tools (Git preferred) Preferred skills 

·         Any work experience related to data scraping algorithms would be an add on weightage

Job Title: Lead – Application Engineering

Remote | Chennai | Hyderabad | Bangalore

Tiger Analytics is a global AI and analytics consulting firm. With data and technology at the core of our solutions, our 2800+ tribe is solving problems that eventually impact the lives of millions globally. Our culture is modeled around expertise and respect with a team-first mindset. Headquartered in Silicon Valley, you’ll find our delivery centers across the globe and offices in multiple cities across India, the US, the UK, Canada, and Singapore, including a substantial remote global workforce.

We’re Great Place to Work-Certified™. Working at Tiger Analytics, you’ll be at the heart of an AI revolution. You’ll work with teams that push the boundaries of what is possible and build solutions that energize and inspire.

Curious about the role? What your typical day would look like?

As a Lead - Application Engineer, you will work with our Application Engineering team on designing and developing web applications.

More specifically, you might:

• Collaborate with business analysts and technical managers to understand functional, and non-functional requirements, and scope.
• Design and develop multi-tier, cloud-native, high-performance, and scalable solutions
• Indulge in applying benchmarking software engineering principles and design patterns to build robust world-class solutions.
• Direct cross-functional agile teams as a leader across the software development lifecycle
• Analyse design alternatives using proofs-of-concept, and engage with architects to choose the best optimal solutions
• Obsess about writing high-quality code and performing reviews of the design and code.
• Interact and collaborate with project/program managers to estimate, plan, and reduce technical concerns at the module or project level.
• Ideate with your peers, support their work, and provide constructive feedback on their solutions.

What do we expect?

• 5+ years of experience
• A passion to write clean yet simple programs using JavaScript, HTML5, CSS3
• Keen interest in creating web frameworks like Angular / React JS
• A comprehensive foundation using object-oriented and functional programming languages.
• Wide-ranging knowledge in web server technologies - Node.js / Nginx
• Exposure to Cloud environments - AWS / Azure / GCP
• Good understanding of working with API design and development
• A full cycle web development experience with end-to-end exposure for atleast 2/3 of development projects

You are important to us, let’s stay connected!

Every individual comes with a different set of skills and qualities so even if you don’t tick all the boxes for the role today, we urge you to apply as there might be a suitable/unique role for you tomorrow.

We are an equal-opportunity employer. Our diverse and inclusive culture and values guide us to listen, trust, respect, and encourage people to grow the way they desire.

• Degree in Computer Science.
• 3-10 years of experience as a full stack developer.
• Must have proficiency with fundamental front-end languages such as Java, Nodejs and React JS.
• Familiarity with database technology such as MySQL, Oracle, and MongoDB.
• Excellent verbal communication skills.
• Very Good problem-solving skills.

• Designing, coding and production support of the feature.
• Designing user interactions on web pages.
• Developing back-end website applications.
• Creating servers and databases for functionality.
• Ensuring cross-platform optimization for mobile phones.
• Ensuring responsiveness of applications.
• Working alongside graphic designers for web design features.
• Seeing through a project from conception to finished product.
• Designing and developing APIs.
• Meeting both technical and consumer needs.
• Staying abreast of developments in web applications and programming languages.
   

We are looking for a FULL-TIME OFFICE POSITION Java Developer (2-3 years experience) who is proficient with coding and can design, develop, test, and implement Java applications and resolve technical issues.

As a Java Developer, we are looking for a highly skilled candidate, who will be responsible for building great web applications in Java, analyzing business objectives and user requirements, suggesting necessary changes for the existing Java applications, compiling detailed technical documentation, and determining application functionalities and features.

Do you think you fit this description well? Then apply now!

Expected Responsibilities

• Understanding the business requirements
• Designing and developing the front end for customer-facing applications using the MVC framework
• Creating RESTful APIs for the front-end developers with and with ORM or raw query for any Database technologies like MySQL or MongoDB
• Creating self-contained, reusable, and testable modules and components
• Ensuring a clear dependency chain regarding the app logic as well as the file system
• Supporting continuous improvement by investigating alternatives and technologies and presenting these for architectural review
• Writing non-blocking code and resorting to advanced techniques, such as multi-threading, when required

Required Skills And Qualifications

• MCA/BTech degree in Computer Science, Engineering, or a related subject
• Thorough understanding of the responsibilities of the platform, database, API, caching layer, proxies, and other web services used in the system
• Experience with Docker or any other containerization tools
• Growth mindset and a positive and collaborative attitude
• Professional, precise communication skills
• Fluency in English, both written and spoken

Must-Haves

• At least 2-3 years of experience as a Java Developer
• Experience with Amazon Web Services (S3, Lambda, Elastic Beanstalk, and other AWS modules)
• Hands-on experience in Core Java, Spring Boot, and Spring framework (Embedded Tomcat), REST API skills
• Deep understanding of Java, servlets in J2EE, web-based request handling with Microservices architecture
• Experience with JavaScript-based front-end frameworks like Angular JS or React JS
• Good understanding of Design Patterns, Data structures, and Algorithms
• Exposure to Agile principles and methodologies, including Continuous Integration and Test Driven Development
• Comprehensive knowledge of OO design principles and development patterns
• Java Batch Scheduling (e.g., Flux, Quartz) knowledge
• Previous experience working with clean code, SOLID principles, TDD

A Little About Who We Are

Klizo Solutions, founded by Joseph Ricard, is an IT company that develops outstanding applications and techs in an enterprise environment, located near CC2 in the New Town Area, Kolkata.

But it isn’t the first brainchild of our founder, as he also has multiple start-ups to his credit, including one of the largest music apps in the Philippines and Italy and a first-of-its-kind Cannabis Vending Machine.

So, naturally, being a part of a company founded and run by such a visionary tech leader and a serial entrepreneur, our employees always have ample opportunities to learn and grow as the company evolves.

Currently, our big happy Klizo family consists of 50+ employees. But we want to extend the happiness of working and collaborating with talented individuals even further. And by this, we mean we will hire more talents over the next few weeks!

Perks Of Being A Klizonian

• Training will be provided (if required)
• 5-day working in a week
• On-time salary every month
• Cool and approachable management
• Numerous opportunities for growth

Job Type: Full Time

Key Responsibilities:

• The Laravel/CodeIgniter (HMVC) Developer is expected to be able to perform all aspects of the development tasks, including front- end, back- end, and database development.
• Develop web sites, applications and rich multi- media experiences according to the brief and technical specifications.
• Must have experience and knowledge in Laravel/CodeIgniter (HMVC)/Symphony Framework.
• The applicant is expected to possess strong problem-solving skills programming, testing and troubleshooting skills.
• Proficiency in Laravel/CodeIgniter (HMVC)/Symphony framework(s), jQuery, JavaScript, AJAX, CSS, HTML, MySQL/Postgre SQL/Mongo DB.
• Eagerness to contribute to a team-oriented environment.
• Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality.
• Knowledge of object-oriented programming using HMVC framework.
• Good knowledge of the common Laravel/CodeIgniter (HMVC)/Symphony framework(s) or web server exploits and their solutions.
• Develop, record and maintain cutting edge web-based PHP applications on portal plus premium service platforms.
• Familiar with REST API's and Integration with third-party API's.
• Hands on Experience in an e-commerce environment would be an added advantage.
• Adhering to project coding standards and recommending improvements.
• Modifying existing software to correct errors, allowing it to function in new operating environments.

Additional Technical skillset:

• AWS/Azure deployments and architecture.
• Knowledge of Web RTC.
• API
• Financial and Accounting related product knowledge.

Mandatory Skills :

Laravel/CodeIgniter (HMVC)/Symphony framework(s), CSS, HTML, MySQL/Postgre SQL/Mongo DB, JavaScript, jQuery, AJAX

Education

UG: B.Sc. in Any Specialization, B.Tech/B.E. in Any Specialization, BCA in Computers

PG: Any Postgraduate in Any Specialization

Doctorate: Doctorate Not Required.

Job Type: Full-time