
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

About Lynx Technologies LLC
About
At Lynx Technologies LLC, we are redefining how software, AI, and digital products are designed, developed, and scaled. As a next-generation software development and technology partner, we specialize in building cutting-edge digital solutions for ambitious businesses worldwide.
We combine human creativity, AI automation, and advanced technology to empower startups, enterprises, and entrepreneurs to turn their ideas into reality — faster, smarter, and more efficiently than ever.
Whether it's building custom AI-powered platforms, next-gen websites, mobile apps, enterprise-grade software, or scalable digital marketing solutions — Lynx Technologies delivers with precision, innovation, and future-ready designs.
Our mission is simple: We build software for the world of tomorrow.
Tech stack
Candid answers by the company
✔️ Custom Software Development
✔️ AI-Powered Platforms & Automation Systems
✔️ Website Design & Development (Tailored to industries)
✔️ Scalable Product Store & E-Commerce Development
✔️ Mobile App Development (iOS, Android, Cross-platform)
✔️ Digital Marketing Solutions — SEO, PPC, Lead Generation
✔️ AI-Orchestrated Multi-Agent Systems for automation
✔️ Advanced UI/UX and Interactive Product Designs
✔️ Software Consulting & Product Strategy
We act as a one-stop technology partner for clients seeking performance-driven, future-ready, and AI-integrated solutions.
Company social profiles
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Role Overview:
As a Tech Lead Consultant, you will spearhead the design and implementation of sophisticated systems that integrate AI-driven analytics with large-scale GIS data. You will act as the primary technical bridge between our engineering team and key stakeholders, ensuring that our full-stack architecture remains robust, secure, and performant. Your day-to-day will involve hands-on coding, architectural decision-making, and mentoring team members to deliver high-quality software that directly influences our clients' operational efficiency and strategic decision-making processes.
Key Responsibilities:
- Architect and develop end-to-end full-stack applications that seamlessly integrate complex GIS data layers to provide intuitive user experiences.
- Design and deploy AI/ML models into production environments to automate spatial data processing and enhance predictive accuracy for end-users.
- Establish and maintain CI/CD pipelines and cloud infrastructure to ensure high availability, scalability, and security of our software delivery lifecycle.
- Lead technical discussions with cross-functional teams to translate complex business requirements into modular, maintainable, and efficient codebases.
- Optimize system performance by identifying bottlenecks in data processing and implementing scalable solutions that handle high-volume geospatial datasets.
- Mentor junior developers by conducting code reviews and promoting best practices in software engineering, testing, and documentation.
Required Skillset:
- Demonstrated expertise in full-stack development using modern frameworks, with a strong ability to build responsive and scalable web applications.
- Proficient in working with GIS technologies and spatial databases, including the ability to manipulate and visualize complex geographic datasets.
- Hands-on experience in integrating AI and machine learning workflows into production-grade software applications.
- Strong command of DevOps practices, including containerization, orchestration, and cloud infrastructure management to ensure seamless deployment cycles.
- Excellent communication skills with the ability to articulate technical concepts to non-technical stakeholders and lead collaborative team efforts.
- Proven ability to operate effectively in a fast-paced, hybrid work environment based in Bangalore, balancing independent problem-solving with team-oriented project delivery.
- Minimum of 6 to 7 years of professional experience in software engineering, with a track record of delivering complex techologies
Key Responsibilities & Skills
Strong hands-on experience in React.js, Node.js, Express.js, MongoDB
Ability to lead and mentor a development team
Project ownership – sprint planning, code reviews, task allocation
Excellent communication skills for client interactions
Strong decision-making & problem-solving abilities
Nice-to-Have (Bonus Skills)
Experience in system architecture design
Deployment knowledge – AWS / DigitalOcean / Cloud
Understanding of CI/CD pipelines & best coding practices
Why Join InfoSparkles?
Lead from Day One
Work on modern & challenging tech projects
Excellent career growth in a leadership position
Position: Full Stack Developer (React.js + Node.js)
Experience: 2–5 Years
Location: Mumbai – Chembur West (Onsite)
Job Summary
We are looking for a Full Stack Developer with strong hands-on experience in React.js and Node.js to build scalable, secure, and high-performance web applications. The ideal candidate should be comfortable owning features end-to-end, developing responsive UI, building REST APIs, integrating databases, and supporting production systems.
Key Responsibilities
- Build responsive UI using React.js, HTML5, CSS3, JavaScript (ES6+)
- Develop scalable backend services and RESTful APIs using Node.js (Express.js / NestJS)
- Work with MongoDB and MySQL (schema design, indexing, query optimization)
- Implement authentication & authorization using JWT , RBAC , Oauth
- Integrate third-party APIs, Webhooks
- Build real-time features using Socket.io / WebSockets
- Ensure performance, scalability, and security (validation, sanitization)
- Implement caching using Redis (if applicable) and optimize API response times
- Support API testing (Postman/Supertest)
- Maintain API documentation using Swagger / OpenAPI
- Debug and resolve defects, handle RCA, and support production troubleshooting with logs/monitoring
- Follow Git-based workflows, participate in code reviews, and collaborate with QA/product teams in Agile delivery
Mandatory Skills
- React.js, Node.js, JavaScript (ES6+)
- MongoDB (must), MySQL
- REST API development & integration
- Socket.io / WebSockets, Webhooks
- HTML5, CSS3
- Git
- Typescript, Express.js / NestJS
- jQuery / AJAX (basic / legacy support)
Good to Have
- Redis, Swagger/OpenAPI
- Docker, CI/CD (GitHub Actions/Jenkins)
- Cloud exposure (AWS/Azure/GCP)
Qualification
BE / BTech / MCA / MSc IT / BSc IT with 2–5 years relevant experience.
CTC: As per industry std.
We are looking for a Java Application Developer with a minimum of 2 years of experience.
Must have experience in the Retail domain.
Java, Springboot, MVC, JSP, Postgres SQL and Oracle Skills are required.
AWS knowledge is a plus.
Should be willing to travel to the client's location whenever required.
Job Description – Sr. Full Stack Developer
Summary
You will be responsible for the full software development Lifecyle.
Core Accountabilities
- Motivate, develop, coach, and formally appraise the Software Development team.
- Monitor & co-ordinate any management information and capacity relating to the work of the team.
- Responsible for leading the software development team and providing technical guidance.
- Responsible for full stack, architectural, solution design specification and documentation.
- Responsible for the design, development, modification, maintenance, testing and deployment.
- Develop fully integrated back-end to front-end innovative solutions.
- Design, develop and maintain database solutions associated to data driven platforms.
- Develop to high quality coding standards.
- Responsible for project version control, coding standards, branching strategy and deployment.
- As part of the full development life cycle you will be responsible for continuous integration testing, Unit Testing and Performance Testing.
- Provide advanced technical support escalated from the development support team for all Voyager systems, solutions, and data sets.
- Scope and define detailed product backlog item descriptions that feed into sprint planning.
- Provide effective technical analysis, design requirements and relevant documentation.
- Using appropriate tools to define and communicate the required solution. These may include user journeys, prototypes, and wireframes.
- Coordinate release and sprint planning & conduct daily scrum meetings.
- Develop and maintain a thorough and up-to-date working technical knowledge of digital solutions and the Voyager Worldwide product suite.
- Develop and maintain a detailed technical understanding of our products, systems, technologies, architecture, and data sets.
- Develop and maintain a thorough and up-to-date working technical knowledge and understanding of AI, ML and RPA technologies.
- It should be noted that the above list of main duties and responsibilities is not necessarily a complete statement of the final duties of the post.
Qualifications & Experiences
- 8+ years’ software engineering experience in developing data driven based software solutions.
- 2 years’ leading end to end full stack design, development and implementation.
- Excellent working technical knowledge and understanding of AI, ML and RPA technologies.
- C#.Net: i.e. (.Net Frameworks, WPF, WCF, MVC, MVVM, XAML, Xamarin)
- Python: i.e. (TensorFlow, Keras, Theano, Scikit-learn, PyTorch, NumPy, Pandas)
- JavaScript: i.e. (ES6, Node.js, NPM, Sails.js, Ember.js, React, Mocha, Electron)
- JavaScript framework experience (e.g., Ember, React, Angular)
- jQuery, CSS, and HTML
- Excellent working knowledge and understanding of version control systems such as SVN, TFS & GIT.
- Strong SQL Database design and programming skills.
- Excellent working knowledge and understanding of project management tools such as VSTS DevOps
• Demonstrate expertise in software design patterns, with a passion for developing clean and reusable code.
• Take ownership of software development aspects, such as architectural discussions, sprint planning, quality
of product and code and user experience.
• Collaborate with other talented engineers spread across a multitude of tech teams in Singapore & Thailand.
Requirement
• Proven track record of building scalable, high-quality software solutions.
• Thorough understanding of agile software development methodology, and ability of proactively manage
task, projects and issues.
• 2+ years of web development experience using Node
• Well-versed with front-end code in HTML5, CSS3, Javascript, React.js with familiarity in various frameworks
and template languages
• Possess a strong understanding of Object-Oriented Programming, especially in PHP
• Exposure to collaboration tools like GitHub, JIRA, Confluence
• Experience in frameworks such as Symfony 2/Spring , Express.js, NestJs, or proven ability to learn on the job
• Experience with Elasticsearch will be a plus
Who should not apply for this job
- If you are looking for a 100% hike in your salary but can't commit to what value you will bring on the table
- If you never read books
- If you jump companies every 11-12 months
- If you are not comfortable working on Saturdays
- If you have less than 2 years of experience
- If you have more than 4 years of experience
At this position you will:
- Get solid experience with high-load distributed architecture using REST and High load services.
- Work with automated CI/CD processes, AWS cloud, and VoIP.
- Implement and support microservices based on Elasticsearch, Mongo, and frontend.
Key-Skills Required:
Node.js | Express | REST Api | Javascript | Redux-Saga | MongoDB | Web security TLS/SSL | Web Sockets | Promises & Call-backs | Database & Data structures | Redis | Elasticseach | React.Js
Key Deliverables:
- New feature design and implementation, Bug fixing, testing and performance tuning.
- Work on the API and Engines.
- Code deployment on cloud & maintenance of the same.
- Take complete ownership of a product/feature from setup to deployment.
- Time-bound feature delivery & updating.
- Cost-saving using efficient & effective technologies
Role and Responsibilities:
- Work on back-end (+ frontend integration) development of core scripts using NodeJS / MongoDB /Express /Redux, and Redis.
- Manage Key-value based databases like Redis.
- Active participation in the development of a sophisticated platform as one of the leading developers.
- Document code consistently throughout the development process by listing a description of the program, special instructions, and any changes made in database tables on procedural, modular, and database level.
- Respond promptly and professionally to bug reports.
- Knowledge of bluebird.js (Promises), Async, etc will be of advantage.
- Coding and programming using Object-Oriented Programming, Data Structure and Algorithms, architecture/ design and build RESTful API.
- Passionate about building products and features and build the product from scratch with thrust on Web security, TLS/SSL, web sockets, etc
- Knows one or more of Wireframes/ Prototyping/ Functional Documentation of business.
4-10 LPA based on experience and on performance in the interview round (70% Fixed - 30% Variable Incentive based on performance/delivery schedule)
(We do ZERO deductions since the salary will be paid from US/Singapore)
What we offer:
- The Application Developer will be responsible for developing custom solutions specializing in C# and NET technologies to support the overall enterprise application initiatives Guides team members in
- Adhere to NET framework for automation projects to ensure manageability and maintainability of ode base
- 7+ years of work experience in developing Business IT Applications, Digital technologies, and Platform implementation
- Practical experience of developing machine learning systems
- Strong software skills in Python/R/C#
- Experience in using machine learning frameworks and libraries such as TensorFlow a plus
- Lead and work with ML engineers and data scientists to build smart automation & ML applications
- Strong software troubleshooting skills, and an understanding of programming constructs in C# NET, in a MS Windows based enterprise software environment
- Lead and work with ML engineers and data scientists to build smart commerce services & ML applications
- Identify what kind of data in which format should be collected in order to solve the problem
- Strong understanding of programming concepts and a programming background with C# NET
- Strong understanding of Process Design documents, Technical Design documents and BPMN 20 standards
- Strong understanding of web technologies, HTML, CSS, JavaScript, xml, xaml
- Strong understanding of relational database design, writing queries and stored procedures with MySQL or Microsoft SQL
- Strong understanding of Object Oriented Analysis and Development within large enterprise level applications
Who we are:
We are leading CMMI Level 3 global organization. We enjoyed a stable leadership since its inception in the Silicon Valley, California in 1996. We have expanded from a single location to current presence in 5 global cities with round-the-clock connectivity.
Since inception, the driving core values inculcated by our founder, management team and investors have been the ongoing guiding force.
We emerged as a leading custom software development organization, spread across the globe. We made business easier and more profitable for varied small to medium size projects. As a technology partner, we deliver solutions in line with your business goals. With 2000+ happy customer base, vast experience of 20+ years, backed by offices in the US, Australia and India, providing next-door assistance and a round-the-clock connectivity. Our software solutions cover all major industries such as healthcare, digital enterprises, business automation and IT services, highlighting our expertise in Microsoft open source platform, mobile platforms and new technologies.
To know more about we visit http://www.smartdatainc.com">http://www.smartdatainc.com
About You:
Should build interactive consumer data from multiple systems and restfully abstract to the UI through a Node.js backend.
- Should define code architecture decisions to support a high-performance and scalable product with a minimal footprint
- Should address and improve any technical issues
- Should be good in communication skills and teamwork ability to work between different levels of developers.
- Should be able to work/handle projects single handed by own
- Should perform unit/per testing for creating a bug free solution.
You should possess:
- Experience of Node JS, Express JS, Mongo DB, Angular 2+.
- Knowledge of GIT, Jenkins tools or similar.
- Knowledge working with AWS (S3, EMR, EC2, RDS).
- Experience of Agile development and methodology.
Good to have:
- Project management and deployment skills.
- Knowledge of Dockers and Kubernetes.
- Onsite experience.
- US business Visa.










