Engineering Manager / Lead (B2B SaaS, Fullstack)

Position: Full-Stack Developer – React / C# / Python / SQL

Location: Mumbai / Pune

Experience: 6–8 Years

Employment Type: Full-time

About the Role

We are looking for a versatile Full-Stack Developer who has working experience in React, C# or Python, and SQL. The candidate doesn’t need to be an expert in all these technologies but should be comfortable taking end-to-end ownership of features with the support of modern AI tools.

Key Responsibilities

• Develop, test, and maintain scalable frontend applications using React.
• Build and integrate backend services using C# (.NET) or Python.
• Write and optimize SQL queries, procedures, and data models.
• Work closely with product and design teams to deliver high-quality features.
• Use AI-assisted development tools (like GitHub Copilot / ChatGPT) to speed up coding, debugging, documentation, and solution design.
• Participate in code reviews, troubleshooting, and performance improvements.
• Ensure best practices in code quality, security, and deployment.

Required Skill Set

• Frontend

React.js (Hooks, components, state management, API integration)

• Backend (any one or both)

C# (.NET Core)

Python (FastAPI / Django / Flask)

• Database

SQL (MySQL / PostgreSQL / MSSQL)

Experience writing queries, joins, stored procedures, and handling schemas

Good to Have

• REST API development
• Basic DevOps understanding (CI/CD, version control – Git)
• Familiarity with cloud platforms (AWS/Azure/GCP)
• Ability to learn quickly with AI tools and follow best practices
• Problem-solving and ownership mindset

What We Are Looking For

• Someone who can handle full-stack tasks with confidence
• Not necessary to be an expert in everything
• Curious, adaptable, and open to using AI tools to deliver faster
• Strong communication skills and team collaboration

We are looking for a highly skilled Full Stack Developer (MERN Stack) with 3–5 years of experience to join our growing team. You will have the opportunity to work on cutting-edge technology solutions, build products from scratch, and contribute to scalable systems handling large volumes of data.

Key Responsibilities:

• Design, develop, and maintain scalable full-stack applications
• Build responsive and high-performance user interfaces using modern frontend frameworks
• Develop robust backend services and APIs
• Ensure seamless system performance while handling large-scale data without slowdowns
• Collaborate with cross-functional teams (product, design, QA) to meet business goals
• Optimize applications for maximum speed, scalability, and reliability
• Participate in architecture discussions and contribute to technical decisions

Required Skills & Qualifications:

Frontend

• Strong experience in React.js
• Hands-on experience with Next.js (mandatory)
• Good understanding of UI/UX principles and responsive design

Backend

• Solid experience in Node.js
• Experience with Python or Java is a plus
• Strong knowledge of RESTful APIs and microservices architecture

Databases

• Strong experience with SQL (mandatory)
• Experience with MongoDB is a plus
• Caching & Messaging
• Experience with at least one: Redis, Kafka, or Cassandra

Other Requirements

• Strong problem-solving and analytical skills
• Ability to work in a fast-paced, collaborative environment
• Good communication and stakeholder management skills

Good to Have:

• Cloud certifications (AWS / Azure / GCP)
• Experience working on high-scale or distributed systems
• Exposure to DevOps practices and CI/CD pipelines

Why Join Us:

• Opportunity to work on cutting-edge tech and greenfield projects
• Ownership and freedom to build solutions from scratch
• Collaborative and growth-focused work environment

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

Click the link below to apply :

https://surl.li/uowuxk

Senior Full Stack Developer:

We are looking for a candidate who has worked with product-based companies.

Total Work Experience: 4–6 Years

Expectations from the Candidate:

• Excellent knowledge of front-end frameworks like ReactJS
• Experience with popular React.js workflows
• Strong hands-on experience in NodeJS development
• Experience working with PostgreSQL
• Understanding of server-client architectures, consuming JSON data from APIs
• Curiosity and a highly collaborative work style — eager to share knowledge and explore new technologies
• Collaborate with cross-functional teams to define, design, and ship new features
• Lead or participate in design reviews, code reviews, and architecture discussions
• Write unit tests to ensure code robustness and reliability
• Work on bug fixing and improving application performance
• Continuously discover, evaluate, and implement new technologies to maximise development efficiency

Desired Skills:

1. Worked on Integrations with Third-Party Systems
2. Worked on AI/ML-based Applications/Products
3. End-to-End Ownership of Production-Grade Products
4. Experience working on Live/Production Deployments for multiple years.

Educational Qualification:

• Bachelor’s Degree in Computer Science, Information Technology, Software Engineering, or a related technical discipline.
• A Master’s Degree (M.Tech/MCA) in a relevant field will be an added advantage.
• Strong academic foundation in Data Structures, Algorithms, Database Management Systems (DBMS), and Software Development Life Cycle (SDLC).

•  Developing both frontend and backend of application using technologies like Java,   Angular, JavaScript, HTML5.
•  Designing user interactions on web pages.
•  Designing and Developing back end API's and databases.
•  Meeting both technical and customer’s needs.
•  Seeing through a project from conception to finished product.
•  Take complete ownership of the project and deliver with good quality.
•  Staying abreast of developments in web applications and programming languages.

• Relevant experience of 8+ yrs
• Strong communication, organizational skills. Good in Agile, Scrum, Dev-Ops practices.
• Proficiency with fundamental front end languages such as HTML5, CSS and JavaScript.
• Familiarity with JavaScript frameworks such as Angular, React and Amber.
• Proficiency in Java, Springboot, Microservices
• Familiarity with database technology such as PostgreSQL, MySQL, Oracle and MongoDB.
• Good in writing quality code and Unit Tests. Good knowledge of DevOps practices.
• Excellent verbal communication skills.
• Good problem solving skills