NodeJS Developer

Project Overview

We’re building Express AI, a SaaS platform that allows small and medium-sized businesses (SMBs) to easily train and deploy their own dedicated AI agents for customer service, technical support, sales, and more.

Our vision is to give SMBs the power of enterprise-grade AI without complexity. You’ll help build the core platform that powers this – including agent training interfaces, web deployment, dashboards, and integrations.

Key Responsibilities

• Develop scalable full-stack features using modern JavaScript frameworks

• Build and maintain AI agent training modules (upload docs, FAQs, tone settings)

• Integrate OpenAI, Whisper, LangChain, and other LLM APIs

• Implement user-facing dashboards for chat/voices/social/email agent monitoring

• Design multi-tenant systems with admin-level controls

• Ensure reliability and scalability of the platform as we grow

Tech Stack

• Frontend: React.js, Next.js, TypeScript

• Backend: Node.js, Express, MongoDB (or Postgres), Redis

• AI & NLP: OpenAI API (ChatGPT, Whisper), LangChain, Python (optional)

• DevOps: Docker, AWS or GCP (basic familiarity okay)

• Other: WebSockets for real-time chat, REST APIs, Git

Role Type

• Full Stack Developer (preferred)

• Frontend or Backend specialists also considered, but must be willing to collaborate on both sides

Experience Level

• 3 to 6 years of professional experience

• Previous work with SaaS platforms, AI tools, or multi-tenant architecture is a big plus

Must-Have Skills

• Proficiency in JavaScript/TypeScript

• Strong experience with React.js and Node.js

• Experience working with REST APIs and building secure web apps

• Solid understanding of cloud deployment (AWS/GCP/Firebase)

• Ability to work independently, self-manage, and deliver in a fast-paced environment

Nice-to-Have Skills

• Familiarity with LangChain, OpenAI, AI agent frameworks

• Experience with voice/chat integration

• Prior experience building tools for SMBs or customer support systems

Engagement Type

• Full-time (preferred) or part-time with clear weekly availability

• Remote (India-based candidates only)

Why Join Us?

• Work on a cutting-edge AI platform solving real problems for real businesses

• Fast-moving, no-red-tape team environment

• Build something that will impact millions of small businesses globally

We are looking for a talented full-stack software engineer to join our small and extremely talented product team. We love to build amazing products fast and with a high standard of code and UX, always on the cutting edge of new technologies.

Tasks

• Design and build features end-to-end. You'll be working on the frontend, backend, and anything in-between, whatever it takes to solve problems and delight users.
• Build beautiful and usable UIs with our modern toolset of React (NextJS, ES11, TypeScript) and TailwindCSS.
• Continue developing our distributed backend using Node (NestJS + TypeScript) and Rust. Technologies also include PostgreSQL, Redis, and RabbitMQ.
• Stitch many different services and APIs together, even if you have not worked with them before.
• Build solutions that take scaling and growth into consideration while balancing the time to launch.
• Engineer solutions to solve existing tech debt and write maintainable, sound and safe code.

Requirements

• 3+ years of experience as a Software Engineer, working with Typescript, React and serious interest or even better experience with Rust. However, we care much more about your general engineering skill than your knowledge of a particular language or framework.
• The ability to put yourself in the users' shoes and craft intuitive, high-quality web UI experiences
• A high bar for code quality and robustness for long-term expansion and use
• High personal initiative to learn, improve, and excel
• A Can-Do, entrepreneurial mentality with enjoyment for being a generalist
• DevOps: Experience with CI/CD pipelines, Docker, Kubernetes, and other DevOps tools.
• Experience with distributed systems, scaling applications, and/or microservices.
• Fluent in English (German is a plus)

Plus:

• Hands-on experience with the Rust
• Experience with functional programming
• Previously worked in an early-stage startup and experienced scaling of engineering teams

Job Responsibilities:

The role is responsible for designing, coding, and modifying web apps, from layout to function and according to the specifications. Integrating data from various back-end services and databases.

Job Duties

• Candidate must have a strong understanding of UI, cross-browser compatibility, general web functions, and standards.

• The position requires constant communication with colleagues.
• Experience in working with distributed environments

• Deep expertise and hands-on experience with Web Applications and programming languages such as HTML, CSS, JavaScript, JQuery, and API.

Skills:

Proven working experience (2 years) in:

• Node.js

• Angular

• React

Responsibilities: 

• Responsible for monitoring project deliverables on day to day basis 
• Required to update relevant stakeholders or team members on the project's progress. 
• Assist, train, and ensure project team members with tasks that you have assigned to them. 
• Test the product modules and manage the change request, bug reports, etc. 
• Assist project managers in the planning, execution, and monitoring of projects Develop and maintain project plans, timelines, and progress reports. 
• Facilitate communication between intern stakeholders, clients, vendors, and management. 

Qualifications:

•  Bachelor's Degree or equivalent experience. 
• 3+ years of relevant Project Management experience. 
• Strong verbal, written, and organizational skills for documentation, user stories, etc. 
• Proficient in MS Excel, and Presentation. Proficient in Jira, Confluence, and Notion is a plus. 
• Excellent organizational and time-management skills. 
• Strong communication skills, both verbal and written. 
• Ability to work well in a team environment. 
• Experience with project management tools and software. 
• Ability to identify project risks and issues, and develop mitigation plans.

We're looking to hire expert Laravel developers with strong command over database concepts and preferably, ability to work as a full stack developer utilising Angular/Laravel or Vue as a frontend tech stack. Minimum 4 years experience is required.

As a senior software developer, we expect the following qualifications:

• Has a longer IT technical training in computer science or similar
• Have proven experience JavaScript
• Have proven experience of developing REST-based services
• Have proven experience in PHP and JAVA
• Have proven experience in Laravel, Symfony, and Composer
• Have proven experience with CSS, SASS, and HTML
• Proven experience with Vue.js, Angular or React

Personal qualifications:

• You are quick to put you into new tasks and get an overview.
• As a person manages to get support for your suggestions and solutions.
• Your efforts are focused and you take pride in having completed your tasks, which include seen by you adhere to deadlines.
• Your work is characterised by being both structured and systematic which for example is seen in your documentation.

Roles and Responsibilities 

1) Understand client requirements and functionalities. 

2) Write well-designed, testable, efficient code. 

3) Responsible for solving complex technical issues. 

4) Ensure quality projects are delivered within defined timelines. 

5) Active involvement in client communication to understand functional requirements. 

6) Maintain high standards of quality for code, documentation and other deliverables. 

Required Skills 

1) Good experience in Angular/React

2) Hand on Node.JS./Express JS 

3) Database : MongoDB 

4) Experience in Java Script, Typescript. 

5) Experience working in an Agile environment. 

6) Good communication skills.

• Must have strong exposure working on Java Script 
  
• Proficient in Javascript frameworks (Vue Js / React Js) is a must
• Strong understanding of REST APIs
• Have experience with common front-end development tools such as Babel, Webpack, NPM is a definite advantage
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Proficient understanding of code versioning tools, such as GitHub
• Good to have working experience on CSS pre-processor either LESS or SASS
• Good understanding of BEM (Block, Element, Modifier) methodology

Level 3 Contractor-to-Fulltime-Programmer Role:

Must have 1-2 years (ideally 12 to 30 months) of post-collegiate professional programming experience at a top SaaS company in React, Typescript, Javascript working within Visual Studio Code and Yarn, leveraging superior techniques with Routing, Components, State, and Props to deliver elegant consumer applications based on dynamic data.

Ability to translate user story completely into exceptional functionality that consistently meets acceptance criteria and delights users.  Ability to convert complex workflows into elegant experiences highly prized.

Experience with Firebase, Firestore, MongoDB, Heroku and other Cloud-based technologies to deliver scalable, performant data-driven applications, with deployments on Kubernetes.  Ideally experienced working with colleagues over Discord.

Ability to exhibit judgment to independently author test suite and testing scripts to evaluate code additions, ensuring no regressions in functionality or user experience.

Proficiency in translating complex mathematical concepts into effective data structures and programming practices.  Personal pleasure in solving mathematical puzzles elegantly is a huge plus.

Bonus for those possessing keen interest in better investing, wealth creation, and FinTech/WealthTech experience.

Collaborate effectively through coding tools such as GitHub, Jira, and Slack.

Enthusiastic, collaborative, driven, curious, professional, fast-paced, detail-oriented.  Clear communicator, flexible work hours to be part of experienced Silicon Valley product team. Able to make constructive contributions to improved team development practices
.

Anticipated first year will be entirely working from home given COVID as Level 3 Contractor, and upon completion of first anniversary will be eligible for sign-on bonus as full time employee. Required to have own effective laptop/development set up and sufficient bandwidth to be exceedingly productive.

We are excited to consider applicants from outside top IITs and top technical cities, so you don’t have to be a graduate of IIT Madras or IIT Bombay, nor living in Bangalore, Pune, or Hyderabad – we are more interested in exceptional and fluent programming talent and passion than just these degrees.  And all that being said, we confess we do have a founding team with degrees and DNA from Stanford, Harvard, and INSEAD.

There will be a technical task/test, a fit/communication interview, and a technical interview.