Full Stack/Software Development Engineer III - Solution Design

Job Summary:

Experienced Full-Stack Developer with expertise in Angular (TypeScript) for front-end development and Python Flask for back-end API development. Strong background in Microsoft SQL Server, authentication using Azure AD (MSAL), and implementing efficient API integrations. Skilled in unit testing, debugging, and optimizing performance.

Key Skills:

• Front-End: Angular, TypeScript, PrimeNG, RxJS, State Management, React JS

• Back-End: Python Flask, SQLAlchemy, RESTful API Development

• Database: Microsoft SQL Server (SQL, Joins, Query Optimization)

• Authentication: Azure AD, MSAL, JWT-based authentication

• DevOps & Deployment: Git, CI/CD (Azure DevOps, GitHub Actions)

• Additional: data validation, pagination, performance tuning

Job Description – Senior AI Full Stack Engineer

Experience: 8+ Years

Location: Remote

Employment: Haparz Payroll

Budget: Up to 24 LPA

Role Overview

We are looking for an experienced Senior Full Stack Engineer to building a next-generation Agent Development Platform (ADP). This role requires expertise across frontend and backend development, enabling seamless integration between AI-powered applications, platform services, and enterprise-grade administrative interfaces.

You will build scalable React applications, high-performance backend APIs, AI gateway services, and secure multi-tenant platform capabilities while working closely with AI, DevOps, and Product Engineering teams.

Key Responsibilities

• Design, develop, and maintain scalable full-stack applications using React and modern backend technologies.
• Build and enhance the Platform Control Plane and AI Gateway for LLM routing, telemetry, and tenant-level cost management.
• Develop React-based Admin Console features for tenant configuration, security policies, licensing, and budget management.
• Implement FastAPI backend services with secure CRUD operations and multi-tenant data isolation.
• Design and develop RESTful APIs using Python (FastAPI), Java Spring Boot, or Node.js.
• Collaborate on Python and TypeScript SDK development for AI agent integration.
• Build conversational interfaces and administrative dashboards for AI agent interactions.
• Convert platform configurations into YAML-based runtime definitions for AI agents.
• Implement secure authentication, authorization, SSO, and RBAC using WorkOS.
• Ensure secure execution environments using Firecracker MicroVMs, Docker, or Kubernetes.
• Collaborate with DevSecOps teams on deployment automation, scalability, and platform reliability.

Required Skills

• Strong experience in React and modern frontend architecture.
• Hands-on experience with FastAPI (Python).
• Strong backend expertise in Java Spring Boot and/or Node.js.
• Experience designing scalable RESTful APIs.
• Platform Control Plane and AI Gateway development experience.
• Strong understanding of YAML configuration management.
• Experience with PostgreSQL and multi-tenant application architecture.
• Knowledge of secure authentication, OAuth 2.0, WorkOS, and RBAC.
• Experience with Docker, Kubernetes, and containerized deployments.
• Familiarity with AI integration patterns and enterprise platform development.

Preferred Skills

• Langfuse or LangSmith for AI observability.
• ChromaDB, GraphDB, or other vector database integrations.
• Firecracker MicroVMs for secure runtime isolation.
• Temporal Workflow Orchestration.
• Figma-based Design System implementation.
• Experience building AI agent interaction interfaces such as review queues and confidence scoring dashboards.

Title

Full Stack MERN/ MEAN Tech Lead

Location

Bangalore

About the company

With over a decade of experience, we specialize in crafting bespoke integration solutions and empowering businesses across the globe with a combined approach to emerging technology. We use cutting edge enterprise platforms - Microsoft, Salesforce, SAP and more Since our establishment in 2004, with our headquarters located in Tampa, USA, eCosmos has been extending global reach and domestic support to a diverse range of organizations, from start-ups to Fortune 500 companies

. Job Summary:

The Lead Developer provides technical expertise which requires a working knowledge of the technical infrastructure underpinning the applications. Plans, consults, and coordinates complex project assignments in the design, development and implementation of applications software. Works as part of a service or project team to implement complex technical solutions that meet business requirements. Responsible for contributing to the planning of the work programs and the review, development, and modification of best practices and technical solutions. Provides supervision to a team of Developers

. What success looks like in this role:

• You will lead a team of 5-10 developers building web apps with React, Node.js, Express and MongoDB, and mobile apps with React Native.

• Architect scalable and high-performance web and mobile apps using proven JavaScript stacks like MERN and MEAN

• Establish best practices for web and mobile development, code quality, testing, and CI/CD

• Proficiency in TypeScript is required to develop and maintain the front-end and back-end of our web applications.

• Plan sprints, assign tasks, and oversee code reviews, testing, and releases

• Troubleshoot and debug applications across the stack

• Manage technical debt and spearhead migrations to new libraries/frameworks when needed

• Hire and mentor developers and promote an engineering culture of learning and excellence.

Skills Required:

• Excellent communication skills, both written and oral.

• Quick problem-solving skills with exceptional aptitude and reasoning. • Good orator, presenter with influencing skills to manage and negotiate complex conflicting resolutions.

• Ability to frame ideas in words to provide a perspective and outcome from analyzing them.

• Experience in leading, managing, mentoring a team of junior developers.

You will be successful in this role if you have:

: • Bachelor's in engineering (B.E or BTech.), MCA.

• 5+ years' experience leading web and/or mobile engineering teams

• Deep expertise with JavaScript, Node.js, React, React Native, and MongoDB • Experience building web apps with MERN or similar stacks • Experience building mobile apps with React Native or similar frameworks

• Excellent verbal and written communication skills

• Comfortable with Agile methodologies like Scrum and Kanban

• Strong leadership skills and commitment to building a world-class engineering team

Compensation & Benefits:

For the right candidate, e-Cosmos is ready to provide an extremely competitive salary and added incentive bonus potential

. e-Cosmos provides an attractive and complete benefits package:

✓ Accidental Death & Dismemberment Insurance

✓ Training and certification assistance

✓ Employee referral bonus program

✓ Vertical and Lateral increments

ETHICS COMPLIANCE:

: e-Cosmos is firmly committed to conducting business in compliance with the letter and spirit of the law and other accepted standards of business conduct as reflected in the company's policies.

1. We are looking for candidates who have good programming skills. Strong on data structures, algorithms, understand time space complexity, able to come up with multiple solutions and then arrive at most optimized one keeping in mind customer requirements. Should also be well aware of OO concepts. If he / she has a strong background on these areas ( in any programming language), half the job is done. – 50% weightage
2. Next the candidate should have worked on JS  with good hands on experience in a few projects mainly in backend development like making api calls, handling exception, models, data transformations, controllers etc.  – 20-30% weightage
3. The last would be having some experience in any one of react.js/ node.js or even angular.js since some of these are being used in the current project. – 20-30% weightage
4. Prefer candidates with Angular (ver 8+), react (ver 16+), Node (Ver 14+) and extremely good in JavaScript, HTML & CSS
5. Experience : 4-6 years relevant

What you need to have:

At Smart Audit, we rely on our dynamic team of engineers to solve the many challenges and puzzles that come with our rapidly evolving technical stack. We’re seeking a full-stack engineer who is ready to work with new technologies and architectures in a forward-thinking organization that’s always pushing boundaries. Here, you will take complete, end-to-end ownership of projects across the entire stack. Our ideal candidate has experience building products across the stack and a firm understanding of web frameworks, APIs, databases, and back end languages. You’ll be joining a small team working at the forefront of new technology, solving the challenges that impact both the front end and back end architecture, and ultimately, deliver amazing global user experiences.

What do we expect:

• Experience in MERN Stack
• Passion for learning & solving challenging problems
• Hands-on role and huge potential to grow
• Saas experience and design skills are a huge plus
• Creative thinking

Our ideal candidate is comfortable collaborating with Product Owners, UX and UI Designers, Data Scientists and senior technical team members to build sound solutions to complex business challenges. A Self-starter and problem-solver will thrive in this position.

You should be strong JavaScript developer comfortable in all areas of the software development lifecycle and have experience with React, Node, Mongo, MySQL and Express in a scalable production environment. Some Python and familiarity with AWS would be welcomed.

Focus Areas and Core Responsibilities

Accountable for day-to-day implementation and launch of product roadmap features and updates.

Collaborate with Data Science, Tech and UX teams to create systems design and information architecture based off of user stories and requirements. Ensure test cases are properly written.

Maintain and work on the continuous improvement and development of company tools.

Coordinate with dev ops and QA to ensure continuous integration and deployment of production ready code.

Skillset, Qualifications, and Experience

• 5+ years of web application development experience including strong working knowledge of JavaScript, ReactJS, NodeJS, Mongo and Express.
• Familiar with asynchronous programming and object-oriented programming best practices. Must have prior experience with MVC design pattern
• Experience with node and linux commands necessary for debugging installations and deployment locally and on cloud services such as AWS
• Strong familiarity with a variety of APIs and RESTful interfaces
• Familiar with various methods for performance optimization
• Ability to work with UX/UI team to create a frictionless user experience and pixel perfect web components and data visualizations
• Experience integrating security best practices into the SDLC
• Expert level Git, including branching and best practices to resolve merge conflicts
• 1+ years of Agile development experience
• Experience manipulating and working with data in a variety of forms: csv, xml, json, structured and unstructured
• Excellent communicator who can work independently and be a team player
• Passion for Technology: excitement for new technology, bleeding edge applications, and a positive attitude towards solving real world challenges

his position lets you work from the comfort of your home. You would be required to work from 2:00 pm to 10:00 pm. You will receive 12 personal times off during the year. You would have to be available via skype during those times. The ideal candidate would have to know a lot about seo and code to fix issues that are required on google. You would be working on projects from job boards to crm to websites. Your primary job would be to write code. AWS operating systems knowledge is a requirement. But this position would be a lead position to get the job done.

Must have experience with google search engines.

Full Stack Developer Responsibilities:

Proficiency with server side languages such as html, Python, React, Ruby, Java, PHP and .Net. Django

• Developing front end website architecture.
• Designing user interactions on web pages.
• Developing back end website applications.
• Creating servers and databases for functionality.
• Ensuring cross-platform optimization for mobile phones.
• Ensuring responsiveness of applications.
• Working alongside graphic designers for web design features.
• Seeing through a project from conception to finished product.
• Designing and developing APIs.
• Meeting both technical and consumer needs.
• Staying abreast of developments in web applications and programming languages.Full Stack Developer Requirements:
• Degree in Computer Science.
• Strong organizational and project management skills.
• Proficiency in Python CRM application
• Proficiency with fundamental front end languages such as HTML, CSS and JavaScript.
• Familiarity with html, JavaScript frameworks such as Angular JS, React and Amber.
• Familiarity with database technology such as MySQL, AWS, Oracle and MongoDB.
• Excellent verbal communication skills.
• Good problem solving skills.
• Attention to detail.