
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

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Key Responsibilities:
- Design, develop, and maintain applications using ASP.NET (Core/MVC) and C#.
- Build responsive and dynamic front-end components using React.js, JavaScript (ES6+), TypeScript, Bootstrap, HTML5, and CSS3.
- Develop and consume RESTful APIs for application integration.
- Work with MySQL (and optionally MSSQL) for database design, optimization, and queries.
- Ensure code quality, maintainability, and scalability through best practices and design patterns. Collaborate closely with UI/UX designers, backend developers, and QA teams.
- Perform debugging, troubleshooting, and performance tuning for existing applications.
- Maintain comprehensive technical documentation.
- Participate in code reviews and mentor junior developers.
Preferred candidate profile:
- Strong hands-on experience with ASP.NET MVC / ASP.NET Core and C#.
- Proficiency in JavaScript (ES6+), React.js, and TypeScript.
- Strong skills in HTML5, CSS3, Bootstrap, and responsive design principles.
- Good knowledge of REST API development and integration.
- Strong experience with MySQL (tables, queries, stored procedures, indexing).
- Familiarity with Entity Framework / Dapper.
- Knowledge of Git or other version control systems.
Perks and benefits:
- Competitive Salary and Professional development opportunities and training.
- Opportunity to work with cutting-edge technologies in a fast-paced environment.
- Collaborative and supportive work environment.
- Work closely with product managers and engineers to design, implement, test and continually improve scalable frontend and backend services.
- Develop products using agile methods and tools.
- Develop commercial grade software that is user friendly and suitable for a global audience.
- Plan, create and execute (manual and automated) tests.
- Be involved and participate in the overall application lifecycle.
- Building reusable code and libraries for future use.
- Staying up to date with current technologies and providing insights on cutting edge software approaches, architectures, and vendors.
- Fluency in any one of JavaScript, TypeScript or Python.
- Strong problem solving skills.
- Should have built large scalable enterprise applications from scratch.
- Strong experience in architectural patterns, High level designs.
- Experience in Nosql and SQL DBs.
Roles :-
- 5+ years' experience in back end development with Angular.
- Experience and flexibility to work on backend or frontend tech stack depending on the project backlog.
- Strong experience in Databases and API Integration
- Having good experience with back-end programming languages like Node.JS, PHP, Python, Express.js, Angular, React, HTML/CSS, JavaScript, XML
- Exposure to the product development on AWS cloud platforms/Third party API integration and payment gateways
- Knowledge of code versioning tools (such as Git)
- Knowledge of multiple JavaScript frameworks and libraries (e.g. Bootstrap, jQuery)
- Familiarity with databases (e.g. MySQL, MongoDB)
- Knowledge of API design and development
- Excellent communication and teamwork skills and Ability to perform under pressure
Responsibilities :-
- Developing front end website architecture.
- Ensuring cross-platform optimization for mobile phones.
- Designing user interactions on web pages.
- Developing back end website applications.
- Creating servers and databases for functionality
Technical Skills:- Angular, Nodejs, Python/PHP, MongoDB/Mysql, API
Notice Period:- 1 month or less (immediate joiner - Preferred )
Location: Noida, Work From Office
Company Overview:
At Codvo, software and people transformations go hand-in-hand. We are a global empathy-led technology services company. Product innovation and mature software engineering are part of our core DNA. Respect, Fairness, Growth, Agility, and Inclusiveness are the core values that we aspire to live by each day.
We continue to expand our digital strategy, design, architecture, and product management capabilities to offer expertise, outside-the-box thinking, and measurable results.
Roles & Responsibilities :
- Familiar with the software development life cycle (SDLC) from analysis to deployment & coding standards.
- Ability to integrate the developed functionality and/or component into a fully functional system.
- Ensure unit and integration level verification plan are in place
- Actively participate in troubleshooting, debugging and updating current live system.
- Work closely with analysts, designers and other peer developers.
- Preparing technical training documents for onboarding new engineers.
What we're looking for:
- You must have good understanding of Object Oriented Programming
- 5 years or more of professional software development experience with 3 or more years of experience developing .NET/C# web applications using Microsoft Development Products
- You believe in a systematic approach to developing the system through clear documentation (flowcharts, layouts, & etc) of functionality, address every use case through creative solutions.
- You must have defined, designed and built varied components of web-based and/or mobile applications
- Experience using WPF (Windows Presentation Foundation) to build Windows desktop applications is a plus
- Experience using JavaScript frameworks/libraries (Angular, React, JQuery, D3) is a plus
- Experience with SQL Server (relational databases) and no-SQL Databases (Apache Cassandra or similar)
- Strong analytical skills – be a problem solver and be able to develop complex algorithms
- Strong familiarity of software architecture, databases and design patterns
- Exposure or understanding of deploying applications on cloud platforms like Azure/AWS
Work Timings : 3 PM - 12 AM
Title
Full Stack Developer (Dotnet & Angular)
Roles and Responsibilities
- Develop web applications in C#, ASP.NET Core, ASP.NET MVC/WebAPI
- Design and develop backend APIs for complex custom business applications as per requirement
- Design and develop database schema, queries, stored procedures
- Develop frontend SPA using AngularJS/Angular 2+, API integration, Data binding
- Collaboration with developer team, Project managers to ideate software solutions
- Essential communication skills for customer conference calls and meetings
- Interact with clients and other stakeholders to understand their requirements/problems, provide daily updates, plan and module delivery
- Test software to ensure quality and efficiency
- Responsible to troubleshoot bugs and fix them as well as maintain/enhance existing projects
- Write technical documentation
- Working with Agile and Scrum methodologies
- Extensive knowledge of database performance optimization strategies, indexing, sharding
- Develop applications using TDD (Test Driven Development), Unit testing, Integration testing, NUnit/XUnit framework
- Design HLD/LLD architecture diagrams, Infrastructure diagrams, ER Diagrams
Required Skills
- C#
- NET/ASP.NET Core
- Entity Framework
- Javascript
- Typescript
- Angular
- Relational Databases (Postgresql etc.)
- NoSQL (MongoDB, DynamoDB etc.)
- NUnit/XUnit
Nice to have
- AWS/Azure/GCP
- Docker
- Kubernetes
- Microservices
Proficient in Java 8 Version, J2EE and related technologies.
• Experienced in using spring, Spring Boot, Hibernate, messaging systems.
• Good understanding of relational database performance concepts and usage of ORM frameworks such as Hibernate
• Expert understanding of the object-oriented design and programming concepts
• Strong working experience on Data Structures, Algorithms and Collections.
• Solid experience building applications on top of RESTful APIs.
• Knowledge/experience with Spring MVC
• Stroing knowledge in developing and executing automated unit, functional and integration tests
• Good communication and analytical skills.
• Strong trouble shooting skills
As a Technical member of the company, you should be comfortable around both front-end and back-end coding languages, development frameworks, and third-party libraries. You should also be a team player with a knack for visual design and utility.
We are looking for a seasoned full-stack engineer to build out and manage our entire web infrastructure. Successful candidates will have a minimum of one year recent experience with all of the skills listed below.
Our project entails implementing our pre-approved UI, constructing our API, connecting the two, and setting up our server infrastructure. This includes all associated areas such as database and architecture design.
Responsibilities
- Design and implementation of the overall web architecture
- “Pixel-perfect” implementation of our approved user interface
- Design and deployment of our database
- Ensuring the entire stack is designed and built for speed and scalability
- Design and construction of our REST API
- Integrating our front-end UI with the constructed API
- Design and implementation of continuous integration and deployment
The technology team at ClassKlap is team a 4 people, who have helped scale and deliver from scratch to 1200+
schools and 4.5L students. The team is looking to add 2-3 engineers who would help build on existing systems
and design new systems from scratch for the impending delivery scale up of 10k schools and Customer App
scale up of 20k teachers and 20L parents.
- Tech stack: Java 11, Postgres, Android, iOS, React JS, Terraform, AWS
- Backend- Java Programming, Frontend- Javascript using Angular
- Strong agile engineering practices: Test Driven Development, Continuous Deployment, Domain Driven Design, Object Oriented Programming etc.
About the role:
As a Full-Stack Engineer, you are expected to:
1. Collaborate with cross-functional teams to define, design, and ship solutions
2. Build/Update the Domain Model as required for the scale up
3. As a specialist in multiple areas, responsibly plan, prioritize, organize and perform technical work and ensure the integrity of significant and diverse projects; apply a wide range of experience and understanding of trends and technologies, lead the analysis and conceptual design and technical direction of proposed projects.
4. Lead and direct requirements analysis and writing of software requirements and design specifications for multiple significant software modules; often acts as a technical lead working on complex projects.
5. Design and develop advanced applications for multiple platforms
6. Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
7. Help maintain code quality, organization, and automatization
8. Actively support, communicate and enforce the company’s software engineering processes and standards











