Engineering Lead

Full Stack Developer responsible for managing back-end services and the interchange of data between the server and the users.

Your primary focus will be the development of all server side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the frontend elements built by your co-workers into the application. Therefore, a basic understanding of frontend technologies is necessary as well.

We are looking to recruit a candidate for a role that will require:

• Create and consume restful APIs
• Design, develop, and maintain internal and external applications
• Build efficient, testable, and reusable modules
• Write high quality, structured application/interface code and documentation
• Identify solutions through research and collaboration that resolves the root of problems as they arise
• Define functional and technical requirements for application software to develop skills and knowledge
• Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality
• Contribute in all phases of the development lifecycle

Requirement

∙ Proficient in Node.JS and ReactJS development stack

∙ 2+ years’ experience designing, querying, and updating databases in MySQL/nosql

∙ Basic understanding of web technologies including HTML, CSS, JavaScript, AJAX etc.

∙ Passion for best design and coding practices and a desire to develop new bold ideas

∙ Good to have knowledge of AWS, Redis, ElasticSearch

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

Job Summary: 

We are looking for a talented Full Stack Developer with experience in C# (ASP.NET Core Web API), React, and SQL Server. The successful candidate will be responsible for designing, developing, and maintaining robust web applications and APIs, ensuring seamless integration between the front-end and back-end systems. 

Key Responsibilities: 

Full Stack Development: Design, develop, and maintain web applications using C#, ASP.NET Core Web API, and React. 

API Development: Create and maintain RESTful APIs to support front-end applications and integrations. 

Database Management: Design, optimize, and manage SQL Server databases, including writing complex queries, stored procedures, and indexing. 

Front-End Development: Implement user interfaces using React, ensuring a smooth and responsive user experience. 

Code Quality: Write clean, scalable, and well-documented code following best practices in software development. 

Collaboration: Work closely with cross-functional teams, including UI/UX designers, back-end developers, and DevOps, to deliver high-quality software solutions. 

Testing & Debugging: Conduct unit testing, integration testing, and debugging to ensure the quality and reliability of applications. 

Continuous Improvement: Stay updated on the latest industry trends and technologies and integrate them into development processes where applicable. 

Required Qualifications: 

Experience: Proven experience as a Full Stack Developer with a strong focus on C#, ASP.NET Core Web API, React, and SQL Server. 

Technical Skills: 

Proficient in C# and ASP.NET Core Web API development. 

Strong experience with React and related front-end technologies (JavaScript, HTML, CSS). 

Expertise in SQL Server, including database design, query optimization, and performance tuning. 

Familiarity with version control systems like Git. 

Understanding of RESTful architecture and Web API design. 

Problem-Solving: Excellent analytical and problem-solving skills with the ability to troubleshoot complex issues. 

Communication: Strong verbal and written communication skills, with the ability to articulate technical concepts to non-technical stakeholders. 

Team Collaboration: Ability to work effectively in a team environment, collaborating with cross-functional teams to achieve project goals. 

Preferred Qualifications: 

Experience with ASP.NET Core MVC or Blazor. 

Knowledge of cloud platforms such as Azure or AWS. 

Experience with Agile/Scrum development methodologies. 

Education: 

Bachelor’s degree in Computer Science, Software Engineering, or a related field (or equivalent experience)

Location: Noida Sector 142

Experience: 3+ years

Employment Type: Full-Time

Key Responsibilities

• Development: Design, develop, and maintain scalable, high-performance web applications using Node.js and React.js.
• Database Management: Work extensively with PostgreSQL and Prisma ORM to design, optimize, and maintain databases.
• API Integration: Build and integrate RESTful APIs and third-party services to enhance platform functionality.
• E-commerce Projects: Develop and enhance e-commerce solutions, ensuring seamless user experiences and efficient backend operations.
• SaaS Development: Contribute to the development of SaaS-based features and services, ensuring multi-tenant support and scalability.
• Microservices Architecture: Design, build, and deploy microservices to support modular and scalable applications.
• Code Quality: Write clean, maintainable, and well-documented code while adhering to best practices and coding standards.
• Collaboration: Work closely with product managers, designers, and other developers to deliver high-quality solutions within deadlines.
• Troubleshooting: Identify and resolve performance bottlenecks, bugs, and other technical issues.

Required Skills and Qualifications

• Technical Proficiency:Strong expertise in Node.js and React.js.
• Proficient with PostgreSQL and experience using Prisma ORM.
• Hands-on experience with API development and integration.
• Knowledge of e-commerce platforms and their technical requirements.
• Experience in SaaS product development and multi-tenant architecture.
• Familiarity with building and maintaining microservices architectures.
• Version Control: Strong understanding of Git and version control practices.
• Testing: Experience with unit testing, integration testing, and debugging tools.
• DevOps Knowledge (Preferred): Familiarity with CI/CD pipelines, containerization (Docker), and cloud platforms (AWS, GCP, or Azure).
• Soft Skills: Strong problem-solving abilities, attention to detail, and excellent communication skills.

Preferred Qualifications

• Experience with e-commerce frameworks or libraries.
• Familiarity with GraphQL and WebSocket implementations.
• Knowledge of performance optimization techniques for web applications.

What We Offer

• Salary + ESOPs
• Opportunity to work on cutting-edge technology in a fast-paced environment.
• Collaborative and inclusive work culture.
• Professional development and learning opportunities.

Apply Now: If you are a passionate developer looking to contribute to impactful projects.

Responsibilities :

• Design and write lots of bug-free, efficient, scalable, and reusable code
• Developing front-end architecture and ensuring responsiveness of the application
• Work across the full stack, building highly scalable products that enable positive user experiences and measurable business growth. 
• Working on refactoring the current codebase and determining the root cause for the most complex software issues and developing practical, efficient, and permanent technical solutions
• Optimizing backend services to scale for a few hundred concurrent users
• Develop APIs and scripts using backend programming languages like Node.js and Nest.js 
• Dockerizing different services and automating our AWS infrastructure provisioning steps
• Design and implementation of continuous integration and deployment. 
• Determine process improvements, and best practices, and develop new processes
• Mentor and coach other software engineers
• Integrating with third-party APIs and existing frameworks.
• Ensuring responsiveness of applications and writing maintainable, scalable, and unit-testable code. Be passionate about the long-term stability, scalability, and reusability of shared components.
• Implement new requirements, handle change requests, and fix bugs for different releases. Deliver a high-quality and functioning code.
• Integrating solutions to enterprise software and legacy software
• Actively Participate in sprint ceremonies and work towards continually improving the process
• Prioritizes tasks and keeps manager up to date on status and roadblocks
• Help the junior engineers to unblock them and guide them on best design practices. Help in code reviewing on a regular basis
• Prepare thorough technical documentation which can be used by other engineers
• Stay up to date with new technologies and determine how to incorporate these into future platform capabilities

Requirements:

• Minimum 4-8+ years of overall experience developing B2B SAAS products 
• 3+ years of Experience working on React.js and its core principles
• Bachelor's degree in Computer Science or a related field
• Hands-on experience with Node.js and Express.js including state management like Redux
• Good understanding of NestJS, Next.JS, Tailwind CSS, Server-Side Rendering, Storybook/Bit, Bootstrap, and Material UI.
• Thorough understanding of modeling and scaling databases like MongoDB, DynamoDB or Firestore
• Deep understanding of object-oriented JavaScript and design principles and standards
• Hands-on experience in UI optimization best practice implementations
• Understanding of Serverless architecture like Lambda or Google Cloud functions
• Significant experience in developing high-performance, distributed, and scalable applications with container deployment (Docker and Microservices)
• Well-versed with collaboration, and Testing tools like Git, Swagger, and Cypress
• Proven experience with unit testing, integration testing, and end-to-end testing.
• Knowledge of open-source technologies and common front-end development tools such as Babel, Webpack, NPM, PNPM etc.
• Knowledge of modern authorization mechanisms, such as JSON Web Token
• Knowledge of Nginx and AWS services like S3, and EC2 will be helpful

Preferred Skills:

• Exposure to Terraform, GItlab CI/CD, and GitOps is a plus
• A keen eye for UX has experience building complex B2B applications
• Comfortable working in a dynamic startup environment where experimentation is one of the most common practices for product innovation and improvements
• Basic understanding of the Figma Tool and app development via React Native
• Good experience with deploying applications on AWS & DevOps

Nice to Have:

• Great learning attitude and eagerness to take ownership
• Passionate personality with great enthusiasm for life outside of work
• Critical thinker and a problem solver who has a sense of urgency and wants an interesting job that pushes you out of your comfort zone.
• An innovator who is inspired by the endless ways in which everything we do can always be improved
• High-energy personality, with a strong and demonstrable work ethic

What we Offer:

• Competitive salary 
• Health Insurance
• Remote working environment
• Workday Swap
• Learning Culture

Job Description
We are looking for Full Stack Engineer who can turn ideas into extremely reliable, beautifully written code that other people – or you, six months into the future – will find easy to comprehend and modify. You have mastered more than one technology stack in your life, and you are comfortable with the idea of mastering several more. You're competent at high levels and low levels. Technology is a means and not the ends for you.

Responsibilities
Lead and build team to deliver best product(s).
Work closely with client as they build  features, functionality and applications to make system best.
Develop visioning skills and ability to see the big picture
Implement and contribute to engineering practices and processes
Help your team decide what technologies to use. Every engineer is able to propose better ways to do things

Skills and Qualifications
Back End : NodeJS and / or PHP
Front End : ReactJs, Angular and / or PHP
Experience of full stack web development, JavaScript, HTML5, CSS3 and TypeScript. DevOps knowledge is a plus
Ability to clearly communicate technical issues to laymen and to translate their feedback
An inclination to contribute to the creative process
A devotion to delivering the best possible user experience
Technology expertise with insights about technology trends and solutions
Team-player, flexible and able to work in a fast-paced environment
Experience with MySQL, and/or Cassandra, MongoDB desired

Job Responsibilities:

• Design and build efficient, scalable systems that are used by millions of people,
• Own what you build as you create, test, and refine what’s under the hood of our pages and services,
• Investigate production issues pertaining to customer features to determine root cause and implement solutions,
• Investigate existing queries and write new queries with performance optimization in mind,
• Build well-designed software in a way that is generic, reusable, and easily extensible, as well as solves the business needs and requirements,
• Collaborate with product managers, designers, and software engineers to ensure design vision is maintained, the final markup is standards compliant, and UI deliverables are completed on time,
• Work with the real-time feedback from our users (external and internal) to make the products better,
• Discover, design, develop, deploy, debug. Repeat!

Requirements:

• 1-2 years of experience,
• Proficiency in web scripting programming with PHP,
• Experience with MySQL Databases,
• Top-notch programming skills in JavaScript and a strong understanding of web fundamentals,
• Design, build and maintain high performance, scalable and secure code,
• Experience with cloud services like AWS is plus,
• Experience with MVC architecture is a plus,
• Knowledge / experience in building an API,
• Solid understanding of the foundations of security and best practices,
• Good grasp of data structures and algorithms,
• Excellent problem-solving skills,
• Take ownership of the backend services, ensure the best possible performance, quality and responsiveness, as well as maintaining code quality, organisation and testing/deployment,
• Passionate about technology and willing to develop expertise in an emerging field,
• Strong organisational and communication skills, team player.

Perquisites & Benefits:

• A competitive salary,
• Opportunity to be part of a diverse working environment, valuable social sector work experience,
• Fun, casual, relaxed, and flexible work environment.

Role Description:

• Lister is actively engaged with client across digital transformation and engineering
• As a part of this engagement, you will be working with our clients on solution design and architecture, technology decisions, while co-ordinating technical efforts for the team
• As a Technical Lead:, You will need to collaborate with Solution Architects define technology
• roadmap, evaluate/recommend technologies, architect and design solutions, Work
• with other developers to oversee the development and implementation
• You will translate functional requirements from business stakeholders to the technical
• team for implementation
• You will need to troubleshoot design flaws and system bottlenecks
• You will have to be hands-on with code reviews and evaluate implementation for performance and scale
• Manage communication between our clients and internal teams in India and USA
• Coordinate with the offshore team to deliver projects across work streams, Identify risks, issues and blockers to progress and mitigate them for the team
• Rapidly gain an understanding of project requirements and drive execution
• Work with delivery team to ensure the highest quality of materials are being produced and all client needs are met.

Skills Required:

• Excellent understanding of backend and frontend components in the following stack: NodeJS, TypeScript, Javascript, ReactJS, multiple RDBMS and NoSQL databases like Postgres, MySQL, MongoDB Experience of working on AWS services (Lambda, Step functions, SQS, S3 SNS)
• Microservice design pattern is a must
• Experience in Docker, Kubernetes, containerization and CI/CD pipelines is preferable
• Experience in software development tools like Prettier, CodeCov, Snyk, etc..
• Excellent verbal and written communication skills; client facing and interpersonal skills; must be a listener, a presenter, and a people-person
• Experience in Designing scalable architecture systems for Node-based applications
• Ability to grasp complex implementations; Proven results of delivering client solutions
• Should have experience of working with offshore team
• Experience in working on large scale technology transformation projects for product companies is preferable
• Technology contributions to open source projects will be an added advantage
• Should have completed Certifications or training on AWS (AWS Solutions Architect), NodeJS, front-end frameworks.