Senior MERN Stack Developer

Software Development Intern

About This Role

We're building next-generation browser agents that combine accuracy, security, and advanced task learning capabilities. We're looking for self-driven, independent interns who thrive on exploration and problem-solving to help us push the boundaries of what's possible with intelligent web automation.

This isn't a traditional learning internship—we want builders who have already proven they can ship projects and tackle challenges autonomously. You'll work across our full tech stack, from backend APIs to frontend interfaces, with access to cutting-edge AI-powered development tools while contributing to the future of browser automation.

What You'll Do

• Develop intelligent browser agents with advanced task learning and execution capabilities
• Build secure automation systems that can navigate complex web environments accurately
• Create robust AI-powered workflows using LangChain and modern ML frameworks
• Design and implement security measures for safe browser automation
• Create comprehensive test environments for agent validation and performance testing
• Debug and fix application bugs across the full stack to ensure reliable agent operation
• Solve complex problems independently using AI code assistants (Cursor, v0.dev, etc.)
• Explore and experiment with new technologies in AI agent development
• Own projects end-to-end from conception to deployment
• Work across the full stack as needed—no rigid role boundaries

Our Tech Stack

Backend:

• Python with FastAPI
• LangChain for AI/ML workflows
• Google Cloud Platform (GCP) services
• Supabase for database and authentication

Frontend:

• JavaScript/TypeScript
• React for web interfaces
• Electron for desktop applications

Development Tools:

• Cursor IDE with AI assistance
• v0.dev for rapid prototyping
• Modern DevOps and CI/CD pipelines

Flexibility:

• Choose your own tech stack when needed - We're open to new tools and frameworks that solve problems better
• Experiment with cutting-edge technologies - If you find a better solution, we're all ears

What We're Looking For

Required Experience

• Proven project portfolio - Show us what you've built, not what you've learned
• Full-stack development experience with Python and JavaScript
• Independent problem-solving skills - You research, experiment, and find solutions
• Experience with modern frameworks (FastAPI, React, or similar)
• Cloud platform familiarity (GCP, AWS, or Azure)

Ideal Candidates Have

• Built and deployed real applications (personal projects, hackathons, open source)
• Experience with browser automation (Selenium, Playwright, Puppeteer, or similar)
• AI/ML model integration experience (LangChain, OpenAI APIs, agent frameworks)
• Security-focused development understanding of web security principles
• Task learning and reinforcement learning familiarity
• Testing and debugging experience with automated systems and complex applications
• Test environment setup and CI/CD pipeline experience
• Database design and optimization experience
• Desktop application development (Electron or similar)
• DevOps and infrastructure automation knowledge

What We Offer

• Work on cutting-edge browser agent technology - Shape the future of intelligent web automation
• Cutting-edge AI development tools - Full access to Cursor, v0.dev, and other AI assistants
• Technology freedom - Choose the best tools for the job, not just what's already in the stack
• Real project ownership - Your work will directly impact our next-gen browser agents
• Flexible exploration time - Dedicate time to experiment with new AI/ML approaches
• Mentorship from experienced developers - When you need it, not constant hand-holding
• Remote-first environment with flexible working hours
• Competitive internship compensation

What Makes You Stand Out

• Self-starter mentality - You don't wait for detailed instructions
• Curiosity-driven exploration - You love diving into new technologies
• Problem-solving resilience - You debug, research, and iterate until it works
• Quality-focused delivery - You ship polished, well-tested code
• Open source contributions or active GitHub presence
• Technology adaptability - You can evaluate and adopt new tools when they solve problems better

Application Requirements

1. Portfolio/GitHub - Show us your best projects with live demos
2. Brief cover letter - Tell us about a challenging problem you solved independently
3. Technical challenge - We'll provide a small project to assess your problem-solving approach

Not a Good Fit If You

• Need constant guidance and structured learning paths
• Prefer working on assigned tasks without creative input
• Haven't built substantial projects outside of coursework
• Are looking primarily for resume building rather than real contribution

Ready to build something amazing? Send us your portfolio and let's see what you can create with unlimited access to AI development tools and real-world challenges.

We're an equal opportunity employer committed to diversity and inclusion.

We are looking for a Fullstack Developer experienced with Fullstack JavaScript, Cloud and IoT solutions. For the agile development of our web, mobile, and cloud applications and IoT products, building efficient, reliable and scalable solutions. A hands-on coding role, where you will build and manage your own team.

Tasks:

• Development of modern JavaScript-based applications in the back-end
• Development, implementation and optimisation of innovative IoT products, web apps and new features
• Technical product design, solution architecture, specifications and implementation of Livello solutions
• Work with a cross-functional team to define, build, test, and deploy universal applications
• Version control with Git is part of your daily work and continuous integration
• Ensure the implementation of technical standards, quality assurance and best practices.

Requirements:

• Bachelor's degree in Computer Science or comparable field of study
• 3-4 years experience in agile software development.
• Proficiency in Javascript, Node.js, TypeScript, Reactjs, Reactnative and Nest.js, MongoDB.
• Experience with GraphQL and docker as well as state management solutions (Redux, Saga)
• Experience with test and deployment automation (Gitlab, Fastlane, Jest).
• Experience with MongoDB or any equivalent Database.
• Ability to work cooperatively and independently, analytical thinking, willingness to lead and take on responsibility
• Fluent in English.

Nice to have:

• Experienced in IoT-to-Cloud managed services, Microservices, Kubernetes and Docker on GCP / AWS
• Knowledge of IoT device management and message brokers like AMQP or MQTT.

Benefits

• A responsible position in a fast-growing and highly innovative start-up
• An agile and diverse team with colleagues from all over the world, working with our main office in Germany
• English speaking open work environment, with flat hierarchies and short decision-making paths
• Advanced technology stack leveraging cutting-edge IoT hardware and software
• Creative freedom for own ideas, projects and personal development.

Full Stack Developer Job Description:

1. Knowledge in MERN Stack is mandatory

2. Work with development teams and product managers to ideate software solutions

3. Design client-side and server-side architecture

4. Conduct Testing & Debugging, utilize script tools & write basic codes for design specifications

5. Build the front-end of applications through appealing visual design

6. Develop and manage well-functioning databases and applications

7. Write effective APIs

8. Troubleshoot, debug and upgrade software

9. Create security and data protection settings

10. Build features and applications with a mobile responsive design

11. Write technical documentation

12. Work with data scientists and analysts to improve software

• Work with development teams and product managers to ideate software solutions

• Develop and manage well-functioning databases and applications

• Write effective APIs

• Test software to ensure responsiveness and efficiency

• Troubleshoot, debug and upgrade software

• Create security and data protection settings

• Write technical documentation

• Proven experience in Software Development

• Experience developing web applications

• Knowledge and Understanding  of programming languages(e.g. Java, Python, C, C++) and Understanding JavaScript frameworks (e.g. React, Node.js)

• Familiarity with databases (e.g. MySQL, MongoDB), web servers (e.g. Apache) 

• Excellent communication and teamwork skills

• Great attention to detail

Varivas is a community that allows users to create, support, and recommend content. The mission of Varivas is to give the community freedom, ease, and complete control of their content.

Varivas is an early-stage startup looking for its first few members. 

https://www.varivas.community/

Become part of a core team of an upcoming startup building an exciting product from scratch.

• Progressive Web App (PWA)
• JavaScript, Typescript
• MEAN stack https://angel.co/recruit/jobs/1383984">Angular, Node JS, Express, MongoDB
• Azure for hosting and data storage etc.
• Any previous experience in building a social network, payment system or content hosting is a big plus. (Please mention this in your application)

• Payment for work done (of course 🙂)
• Remote work from anywhere
• Complete flexibility of working hours
• Complete freedom and ownership of your work
• No meetings, standups, or daily status group calls. (We prefer asynchronous communication like slack)
• High equity (1-2.5%) if you are interested

• Should be able to work independently without any hand-holding.
• Problem solver who takes complete ownership of given work.
• Smart developer who delivers on results. (You will be assessed based on what you deliver, not by how hard or how long you work)
• Self-motivated candidates who do the work because they like it and are good at it.
• Self-managed individuals. You will not be managed by anyone on day to day basis. (There are no managers in the company)

About Us

We have grown over 1400% in revenues in the last year.

Interface.ai provides an Intelligent Virtual Assistant (IVA) to FIs to automate calls and customer inquiries across multiple channels and engage their customers with financial insights and upsell/cross-sell.

Our IVA is transforming financial institutions’ call centers from a cost to a revenue center.

Our core technology is built 100% in-house with several breakthroughs in Natural Language Understanding. Our parser is built based on zero-shot learning that helps us to launch industry-specific IVA that can achieve over 90% accuracy on Day-1. 

We are 45 people strong with employees spread across India and US locations. Many of them come from ML teams at Apple, Microsoft, and Salesforce in the US along with enterprise architects with over 20+ years of experience building large-scale systems. Our India team consists of people from ISB, IIMs, and many who have been previously part of early-stage startups. 

We are a fully remote team.

Founders come from Banking and Enterprise Technology backgrounds with previous experience scaling companies from scratch to $50M+ in revenues.

As a SDE III, you will be :

1. Designing and implementing FullStack applications of interface.ai’s conversational AI platform and playing a significant role in evolving them.
2. Working with a team of driven and passionate engineers working on cutting edge technology, who take pride in solving complex problems.
3. Engaging in cross-functional team discussions on Product, design, QA, deployment and maintenance,  in a fast-moving collaborative set up.
4. Building reusable code and libraries for future use
5. Analyzing high level requirements, breaking it down into workable/demoable tasks, estimating them and delivering with high quality.
6. Contributing to improve our engineering processes, tooling, and standards.

1. Are extremely self motivated
2. Have ability to learn quickly
3. Have a growth Mindset (read this if you don't know what it means - https://www.amazon.com/Mindset-Psychology-Carol-S-Dweck/dp/0345472322" target="_blank">link)
4. Have Emotional Maturity (read this if you don't know what it means - https://medium.com/@krisgage/15-signs-of-emotional-maturity-38b1a2ab9766" target="_blank">link)
5. Are Passionate about the possibilities at the intersection of AI + Banking
6. Have worked in a startup of 5 to 30 employees
7. Have outstanding problem-solving abilities
8. Have proactive outlook for ways to make the solution better
9. Have 5+ years of experience in delivering scalable complex technical products
10. Have Good knowledge of distributed technologies, low latency, and highly scalable systems. 
11. Have Expertise in JavaScript and Node.js
12. Have Hands-on experience in Node.JS / Express.JS / Hapi.js / Koa.js (or any other Web Framework), and Relational Databases (preferably PostgreSQL)
13. Have Expertise with unit testing & Test Driven Development (TDD)
14. Have Hands-on experience in Mocha or other Javascript testing frameworks
15. Have experience working with react, python (Nice to have)
16. Have hands-on experience in developing applications using microservices, container technologies, container management systems such as Kubernetes
17. Have a strong understanding of systems using real-time interactions (web sockets, long-polling, server-sent events)
18. Have hands-on experience in the Implementation of security and data protection
19. Are eager to learn new technologies
20. Have excellent written and verbal communication skills, including the ability to write detailed technical documents.
21. Are passionate about helping teams grow by inspiring and mentoring engineers

Overview

This position, under the general direction of the Lead and/or Manager, Software Engineering, will be responsible for technical and development support for our award-winning K-12 software. This role will implement, code, build, and test new features, maintain existing features, and develop new plugins/accelerators that will enhance the functionality of our existing product. Additionally, this position will gather and refine requirements, develop designs, implement, test and document solutions to produce the highest quality product and customer satisfaction.

Responsibilities

Essential duties and responsibilities include the following.

• Develop modules and functionalities in front end using Angular, Typescript framework.
• Development of plugins using Node.js(Express.js).

Configuring and Working with MongoDB.

Working on Reusable libraries, Packaging in Nodejs.

Experience in Jira, Development lifecycle, handling and completing tasks assigned in Jira.

Qualifications

To be considered for and to perform this job successfully, an individual must be able to perform each essential duty and responsibility satisfactorily. The requirements listed below are representative of the knowledge, skill and/or ability required.

Qualifications include:

• 4+ years’ experience in software engineer role
• Bachelor’s degree in Computer Science or Information Technologies required or equivalent experience
• Knowledge of current web client technologies including demonstrable proficiency with Javascript, Angular 6,7,8, NodeJs, ExpressJs, Typescript, MongoDB, Graph QL, Bootstrap, HTML5, Css3, Json, Ajax, Scss, SASS, JQuery, GIT Lab
• Proficient in SQL, Oracle experience a plus

• Ability to architect, test, develop, implement and troubleshoot Front End applications
• Strong written and verbal communication skills
• •Strong ability to handle a heavy workload with multiple projects and frequent interruptions
• Strong ability to work in a changing, dynamic environment

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.