Mern Stack 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

• Collaborate with internal teams and the Solution Architect to discuss software design and architecture and best practices.
• Learn & work on POC's of trending technology along with the Solution Architect

• Translate application storyboards and use cases into functional applications
• Ensures the code follows latest coding practices and industry standards
• Contribute development activities into various projects
• Ensure the best possible performance, quality, and responsiveness of applications
• Should be able to identify, categorize, parse out, articulate and fix problems that occur in applications
• Should understand concept of iterative development and leverage DevOps tools for CI & CD
• Form strong working relationships with your peers and across the team
• Mentoring and educating less experienced team members in related technologies using methods such as informal training, pair programming etc
• Project Participation

• Early adoption of trending technologies
• Proactive communication/soft skills

• Deep knowledge of OOPS, and RESTful API services.
• Experience using well-known JavaScript frameworks and libraries, such as React / Angular / Vue etc.
• Deep expertise in one or more of the following technologies - PHP, NodeJS, .NET
• Knowledge of DevOps (Containerization / Jenkins Pipeline, etc.)
• Ability to write and high quality and secure code and understand performance issues
• Experience with database systems, with knowledge of SQL and NoSQL stores (e.g., MySQL, Oracle / MongoDB, SQL Server, etc.)
• Experience on cloud related technologies (AWS / Azure) could be add-on.
• Proficient in multiple stacks of technologies / systems / tools and focus on building depth and breadth of skills.
• Demonstrate the ability to build a work plan or parts of a work plan, as applicable for role
• Strong understanding of Agile methodologies.

• Development - .NET Core | PHP | HTML5/CSS | Angular | React | VueJS
• DevOps - GIT, Jenkins
• Cloud – AWS | Azure
• Database – Oracle | Mongo DB | MSSQL | MySQL | PostGreSQL

• Team Player
• Strong communication skills with ability to communicate complex technical concepts and align organization on decisions
• Ability to communicate well in English
• Sound problem-solving skills with the ability to quickly process complex information and present it clearly and simply
• Passionate about technology and excited about the impact of emerging/disruptive technologies
• Open to learning new ideas outside scope or knowledge skillset
• Creating a positive environment within the team
• Strong team player and be a technical lead for the team.
• Challenge the status quo

Greetings from SMARK Info Solutions!!

We are writing to you from SMARK Info Solutions we are a young company with a technically capable, entrepreneurial, and sophisticated team.

We are reaching out to you for Full-stack Senior Software Engineer (SSE) opportunity with one of our client here in Hyderabad.

The Role

The Full-stack Senior Software Engineer (SSE) in this role will support development and design teams to build scalable web applications and products.

Responsibilities include (but are not limited to):

Support delivery of software components including design and writing/reviewing code

Work within and across Agile to design, develop, test, and implement technical solutions across a full-stack of development tools and technologies

The Candidate

The ideal Full-stack Senior Software Engineer has strong coding skills, has a solid design aesthetic and is determined to create great user experiences.

Key Requirements and Qualifications:

• 3-9 years of professional experience with designing, implementing, deploying, and maintaining front end web applications and related backend services
• Must have worked on Java Spring & Hibernate Framework with strong experience in JavaScript/ Angular-JS, Core Java, J2EE and other related technologies
• Knowledge of Web Service implementation (Restful and SOAP)
• Hands on experience in OOAD and Design Patterns
• Knowledge of Data Structures and Algorithm
• Front-end experience with Angular, JavaScript, HTML, CSS, JQuery, Type Script, ES6
• Experience in JS frameworks (Angular/AngularJS,) and willingness/ability to learn new frameworks if required
• Knowledge of professional software engineering practices and best practices
• Strong communication, organization and project management skills.