Python + React 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

Required Skills & Qualifications

● Strong hands-on experience with LLM frameworks and models, including LangChain,

OpenAI (GPT-4), and LLaMA

● Proven experience in LLM orchestration, workflow management, and multi-agent

system design using frameworks such as LangGraph

● Strong problem-solving skills with the ability to propose end-to-end solutions and

contribute at an architectural/system design level

● Experience building scalable AI-backed backend services using FastAPI and

asynchronous programming patterns

● Solid experience with cloud infrastructure on AWS, including EC2, S3, and Load

Balancers

● Hands-on experience with Docker and containerization for deploying and managing

AI/ML applications

● Good understanding of Transformer-based architectures and how modern LLMs work

internally

● Strong skills in data processing and analysis using NumPy and Pandas

● Experience with data visualization tools such as Matplotlib and Seaborn for analysis

and insights

● Hands-on experience with Retrieval-Augmented Generation (RAG), including

document ingestion, embeddings, and vector search pipelines

● Experience in model optimization and training techniques, including fine-tuning,

LoRA, and QLoRA

Nice to Have / Preferred

● Experience designing and operating production-grade AI systems

● Familiarity with cost optimization, observability, and performance tuning for

LLM-based applications

● Exposure to multi-cloud or large-scale AI platforms

Technical Leadership: Lead, mentor, and inspire a team of engineers to deliver high-

quality software solutions. Provide technical guidance and support to team members,ensuring adherence to coding standards and best practices.

• Full Stack Development: Hands-on coding in ReactJS, Golang, or Java to contribute

directly to project deliverables. Lead by example, demonstrating best practices in coding,

design, and testing.

• Micro services and Cloud-Native Architecture: Design, implement, and maintain

microservices architecture for scalable and resilient applications. Leverage cloud-native

technologies and principles to build robust and efficient systems.

• Squad Management: Independently manage engineering squads, ensuring effective

collaboration and delivery of project goals. Foster a positive and collaborative team

culture, encouraging innovation and continuous improvement.

• Cross-Functional Collaboration: Collaborate with product managers, UX/UI designers,

and other stakeholders to define project requirements and priorities. Ensure alignment

between technical solutions and business objectives.

• Technology Stack Expertise: Stay updated on industry trends and emerging

technologies. Evaluate and introduce new technologies/tools to enhance the

development process.

Founding Engineer:

As a Founding Engineer, you'll be responsible for designing, building, and launching our product to customers. Specifically,

• Since our team is lean and we plan to keep it that way - you’ll be one of the first five engineers in leading the zero-to-one journey of a product our customers are hungry for
• Lead technical design and implementation of the frontend and backend of the product with coaching and mentorship from world-class technical architects
• Have knowledge of (or learn) how to work with Shopify’s CLI
• Iterate quickly to create delightful user experiences, working closely with customers/ design partners
• Help us hire a world-class engineering team in the months ahead
• Our team is currently fully remote (with offices to be opened in Bangalore and Mumbai over next few months) and cross-border across San Francisco, Boston, and India - help us cultivate a remote-first, inclusive, diverse, and friendly culture
• Work directly with the founders with an ownership mindset

Skills and Experience:

• Prior experience working with backend tech stacks (e.g. Spring Boot, Ruby on Rails, Django, Laravel)
• Experience with service service-oriented architecture, writing REST APIs, unit testing, and architectural design
• Understanding of modern web stacks and architecture (HTTP, REST, GraphQL, WebSockets)
• Experience with SQL and NoSQL databases and other technologies (e.g. Mysql, Redis, Kafka)
• Prior experience working with frontend tech stacks (e.g. React, Angular, Vue.js)
• Prior experience working with frontend UI frameworks (e.g. Bootstrap, Tailwind CSS)

• Develop, test, and maintain web applications using PHP, MySQL, HTML, CSS, and JavaScript.
• Collaborate with designers and stakeholders to understand project requirements and translate them into technical specifications.
• Participate in the full software development lifecycle, including planning, designing, coding, testing, debugging, and deploying applications.
• Build responsive and user-friendly interfaces, ensuring cross-browser compatibility and optimal performance.
• Implement and integrate APIs, web services, and third-party libraries as required
• Perform code reviews, identify and fix bugs, and optimize application performance.
• Work closely with the team to continuously improve development processes and implement best practices.
• Stay up-to-date with emerging technologies and industry trends, and apply them to enhance our development practices and solutions.
• Contribute to documentation, including technical specifications, user guides, and test cases.

Requirements:

• Bachelor's degree in Computer Science, Software Engineering, or a related field.
• Proven experience as a PHP Full Stack Developer or similar role, with a minimum of 1-8 years of professional experience.
• Strong proficiency in PHP, MySQL, HTML, CSS, JavaScript, and related frameworks (e.g., Laravel, CodeIgniter).
• Experience with front-end frameworks (e.g., Laravel, React, Angular, Vue.js) and modern development tools (e.g., Webpack, Git) is a plus.
• Solid understanding of object-oriented programming principles and MVC architecture.
• Familiarity with RESTful APIs, JSON, and web services integration.
• Strong problem-solving skills and the ability to work in a fast-paced environment.
• Experience with agile development methodologies is preferred.

Interested candidate may what's app their cv on triple nine zero nine three double one double four.

Role Summary

We’re seeking a highly skilled and self-motivated Senior Software Engineer who thrives in a startup environment. You will lead end-to-end development of key features, own architectural decisions, and ensure the smooth delivery of our product.

Mandatory Skill Sets/Expertise

• 5-6 years of experience in full-stack development, with a strong focus on the MERN / PERN stack (MongoDB, PostgreSQL, Express, React, Node.js) and AWS.

• Expertise in AWS cloud architecture and experience with serverless solutions (Lambda, DynamoDB, API Gateway).

• Proficiency in designing and implementing CI/CD pipelines using Git, Jenkins, Github actions, or similar tools.

• Proven experience leading and guiding a development team, with strong mentoring skills.

• Ability to work independently and manage deliverables without oversight, while thriving in a startup mentality.

• Strong problem-solving abilities with a proactive approach to addressing technical challenges.

• Experience with databases like PostgreSQL, MongoDB, or other NoSQL solutions along with ORM tools like Sequalize & Mongoose ORM

• Excellent communication skills, both written and verbal, with the ability to explain complex technical concepts to non-technical stakeholders.

Nice to Have

• Knowledge of Typescript for both frontend and backend development. • Experience with Docker and containerized applications.

• Familiarity with GRC (Governance, Risk, and Compliance) tools or SaaS products.

• Experience with other AWS services like ECS, CloudFormation, or RDS.

Key Responsibilities

• Lead and mentor a team of developers, driving best practices in coding and architecture.

• Take full ownership of modules, from design through deployment, and launch web apps singlehandedly if needed.

• Design, develop, and maintain web applications using the PERN / MERN stack (MongoDB, PostgreSQL, Express, React, Node.js) with a focus on scalability, security, and performance.

• Prepare high-level technical designs and architectural decisions, especially on AWS serverless architecture and microservices.

• Implement secure, reliable, and scalable solutions using AWS services • Design and manage CI/CD pipelines to ensure continuous integration and automated deployments.

• Optimize application performance through techniques like lazy loading, code splitting, and caching.

• Collaborate with cross-functional teams, including Product Management, to define features and user experience improvements.

• Ensure high code quality by adhering to SOLID principles, implementing comprehensive testing, and embedding observability into the application.

• Monitor and respond to application performance incidents, focusing on improving uptime and resilience.

• Proactively offer suggestions during retrospectives and work on enhancing team productivity metrics such as Lead Time, Deployment Frequency, and Mean-Time-to-Recovery

Job description

We are looking for MERN Stack Interns to join our team and help us build and maintain high-performance web applications. As a MERN stack developer, you will be responsible for designing, developing, and deploying web applications using the MERN stack (MongoDB, Express, React, and Node.js).

Key Responsibilities:

• Design and develop web applications using the MERN stack
• Write clean, maintainable, and efficient code
• Collaborate with the team to define, design, and ship new features
• Troubleshoot, debug, and optimize the application
• Stay up-to-date with the latest industry trends and technologies
• Participate in code reviews and ensure the code is maintainable and scalable

Qualifications:

• Strong knowledge of JavaScript.
• Familiar with MongoDB, Express, React, and Node.js
• Familiar with web development concepts such as RESTful API design, authentication and authorization, and front-end optimization.
• Familiar with Git, webpack, and other development tools.
• Strong problem-solving skills and ability to debug and optimize code.
• Strong communication and documentation skills.
• Must have a bachelor's/master's degree in Computer Science.

If you are passionate about using the latest technologies to build high-performance web applications, we would love to hear from you!

Internship Duration: 06 Months.

Working Days: (Monday to Friday)

Timing: 9:30 AM to 6:30 PM

Job Location: Naini Prayagraj.

Note: This Job is the total based on Work from the Office & We prefer only UP candidates.

Job Types: Full-time, Internship

Salary: ₹5,000.00 per month

• Experience in software development, prototyping, functional analysis, integration, and testing.
• Experience with Javascript and RESTful technologies including building RESTful APIs
• In-depth understanding of the JavaScript programming languages especially Angular and node.js and the ability to peer review other engineer's code constructively
• Highly skilled at problem-solving, unit-testing, and debugging.
• Expert understanding of best practice engineering principles for building MEAN applications.
• In-depth knowledge of database systems and an understanding of data structures, data normalization, and query performance considerations. Particularly Non-Relational/NoSQL databases including MongoDB.
• Automated unit testing and CI experience
• Ability to effectively communicate technical concepts pictorially, orally or in writing.
• Docker experience desired
• Ability to learn business rules quickly by reading requirements, engaging in conversation, or reverse engineering.
• Expertise in source code control and versioning concepts.