Full Stack Engineer (MEAN / MERN)

Experience: 2+ Years

Company: WINIT

Location: Hyderabad

Employment Type: Full-Time

Key Responsibilities:

• Design, develop, and maintain web applications using .NET Core and C#.
• Leverage AI technologies to enhance functionality and automate processes.
• Build and integrate RESTful APIs and web services.
• Optimize SQL queries for efficient data management.
• Collaborate within teams to define and deliver new features.
• Ensure UI/UX feasibility and improve user experience.
• Write clean, scalable code and troubleshoot performance issues.
• Participate in the full product lifecycle and utilize version control systems (Git, SVN).

Required Skills & Qualifications:

• 2+ years experience with .NET Core, C#, and SQL.
• Proficient in JavaScript, HTML5, CSS3.
• Strong problem-solving skills and independent work ethic.
• Experience in product companies, ideally with startups or small enterprises.
• Passion for development with an interest in AI-driven solutions.
• Excellent communication skills and a strong team player.

Preferred Skills:

• Experience with cloud platforms (AWS, Azure), CI/CD pipelines, and containerization (Docker, Kubernetes).
• Familiar with unit testing (NUnit, MSTest) and Agile methodologies.
• Experience with microservices architecture and security best practices.

What We Offer:

• A dynamic, collaborative work environment with growth opportunities.
• Competitive salary and flexible working hours.
• Exposure to cutting-edge technologies, including AI.

About our company:

We are an mSFA technology company that has evolved from the industry expertise we have gained over 25+ years. With over 600 success stories in mobility, digitization, and consultation, we are today the leaders in mSFA, with over 75+ Enterprises trusting WINIT mSFA across the globe.

Our state-of-the-art support center provides 24x7 support to our customers worldwide. We continuously strive to help organizations improve their efficiency, effectiveness, market cap, brand recognition, distribution and logistics, regulatory and planogram compliance, and many more through our cutting-edge WINIT mSFA application.

We are committed to enabling our customers to be autonomous with our continuous R&D and improvement in WINIT mSFA. Our application provides customers with machine learning capability so that they can innovate, attain sustainable growth, and become more resilient.

At WINIT, we value diversity, personal and professional growth, and celebrate our global team of passionate individuals who are continuously innovating our technology to help companies tackle real-world problems head-on.

We are seeking a mid-to-senior level Full-Stack Developer with a foundational understanding of software development, cloud services, and database management. In this role, you will contribute to both the front-end and back-end of our application. focusing on creating a seamless user experience, supported by robust and scalable cloud infrastructure.

Key Responsibilities

● Develop and maintain user-facing features using React.js and TypeScript.

● Write clean, efficient, and well-documented JavaScript/TypeScript code.

● Assist in managing and provisioning cloud infrastructure on AWS using Infrastructure as Code (IaC) principles.

● Contribute to the design, implementation, and maintenance of our databases.

● Collaborate with senior developers and product managers to deliver high-quality software.

● Troubleshoot and debug issues across the full stack.

● Participate in code reviews to maintain code quality and share knowledge.

Qualifications

● Bachelor's degree in Computer Science, a related technical field, or equivalent practical experience.

● 5+ years of professional experience in web development.

● Proficiency in JavaScript and/or TypeScript.

● Proficiency in Golang and Python.

● Hands-on experience with the React.js library for building user interfaces.

● Familiarity with Infrastructure as Code (IaC) tools and concepts (e.g.(AWS CDK, Terraform, or CloudFormation).

● Basic understanding of AWS and its core services (e.g., S3, EC2, Lambda, DynamoDB).

● Experience with database management, including relational (e.g., PostgreSQL) or NoSQL (e.g., DynamoDB, MongoDB) databases.

● Strong problem-solving skills and a willingness to learn.

● Familiarity with modern front-end build pipelines and tools like Vite and Tailwind CSS.

● Knowledge of CI/CD pipelines and automated testing.

Overview:

We're looking for a Full Stack Developer with strong backend expertise who can build,

manage, and scale AI-driven products end to end. You'll play a critical role in designing

scalable architectures, optimizing performance and cost, and building robust AI and agentic

systems.

Responsibilities

1. Architect and build scalable backend systems using FastAPI, PostgreSQL, and Redis.

2. Design, develop, and maintain AI-driven applications, integrating multiple LLMs, APIs,

and agentic frameworks.

3. Implement vector databases (pgvector, Qdrant, etc.) for RAG and AI memory systems.

4. Orchestrate multi-agent AI systems with LangChain/LangGraph, including function

calling, agent collaboration, and monitoring.

5. Build and integrate RESTful APIs for frontend and external use.

6. Manage DevOps workflows, including CI/CD, cloud deployments (AWS/GCP), server

scaling, and logging/monitoring (Sentry).

7. Optimize application cost, latency, and reliability, balancing speed with LLM call

efficiency and caching strategies.

8. Collaborate with product, design, and AI teams to translate business requirements into

high-performing tech.

9. Maintain documentation and ensure code quality with tests, reviews, and async-first

architecture.

10. Contribute to frontend development (React + TypeScript) when necessary, ensuring

seamless API integration and data visualization.

Requirements

Core Skills

• Strong proficiency in Python and FastAPI.

• Experience with PostgreSQL (including pgvector) and SQLAlchemy (async).

• Solid understanding of Redis, RQ (Redis Queue), and caching mechanisms.

• Proven experience integrating LLMs and AI APIs (OpenAI, Anthropic, etc.).

• Hands-on experience with LangChain / LangGraph, RAG pipelines, and agent

orchestration.

• Experience working with cloud platforms (AWS / GCP) and managing file storage (S3).

• Familiarity with frontend stacks (React, TypeScript, Tailwind, Zustand).

• Working knowledge of DevOps: Docker, CI/CD pipelines, deployment automation, and

observability tools (Sentry, Mixpanel, Clarity).

Bonus / Nice to Have

• Experience building agent monitoring dashboards or AI workflows.

• Prior experience in startup or product-based environments.

• Understanding of LLM cost optimization, token management, and function calling

orchestration.

• Familiarity with external API integrations like BrightData, Hunter.io, Adzuna, and Serper.

• Experience building scalable AI products (e.g., chatbots, AI copilots, data agents, or

automation tools).

Mindset

• Startup-ready: comfortable working in fast-paced, ambiguous environments.

• Deep curiosity about AI systems and automation.

• Strong sense of ownership and accountability for shipped products.

• Pragmatic and cost-conscious in architectural decisions.

• Excellent communication and documentation skills.

ROLE: Ai ML Senior Developer

Exp: 5 to 8 Years

Location: Bangalore (Onsite)

About ProductNova

ProductNova is a fast-growing product development organization that partners with

ambitious companies to build, modernize, and scale high-impact digital products. Our teams

of product leaders, engineers, AI specialists, and growth experts work at the intersection of

strategy, technology, and execution to help organizations create differentiated product

portfolios and accelerate business outcomes.

Founded in early 2023, ProductNova has successfully designed, built, and launched 20+

large-scale, AI-powered products and platforms across industries. We specialize in solving

complex business problems through thoughtful product design, robust engineering, and

responsible use of AI.

Product Development

We design and build user-centric, scalable, AI-native B2B SaaS products that are deeply

aligned with business goals and long-term value creation.

Our end-to-end product development approach covers the full lifecycle:

1. Product discovery and problem definition

2. User research and product strategy

3. Experience design and rapid prototyping

4. AI-enabled engineering, testing, and platform architecture

5. Product launch, adoption, and continuous improvement

From early concepts to market-ready solutions, we focus on building products that are

resilient, scalable, and ready for real-world adoption. Post-launch, we work closely with

customers to iterate based on user feedback and expand products across new use cases,

customer segments, and markets.

Growth & Scale

For early-stage companies and startups, we act as product partners—shaping ideas into

viable products, identifying target customers, achieving product-market fit, and supporting

go-to-market execution, iteration, and scale.

For established organizations, we help unlock the next phase of growth by identifying

opportunities to modernize and scale existing products, enter new geographies, and build

entirely new product lines. Our teams enable innovation through AI, platform re-

architecture, and portfolio expansion to support sustained business growth.

Role Overview:

We are seeking an experienced AI / ML Senior Developer with strong hands-on expertise in large language models (LLMs) and AI-driven application development. The ideal candidate will have practical experience working with GPT and Anthropic models, building and training B2B products powered by AI, and leveraging AI-assisted development tools to deliver scalable and intelligent solutions.

Key Responsibilities:

1. Model Analysis & Optimization

Analyze, customize, and optimize GPT and Anthropic-based models to ensure reliability, scalability, and performance for real-world business use cases.

2. AI Product Design & Development

Design and build AI-powered products, including model training, fine-tuning, evaluation, and performance optimization across development lifecycles.

3. Prompt Engineering & Response Quality

Develop and refine prompt engineering strategies to improve model accuracy, consistency, relevance, and contextual understanding.

4. AI Service Integration

Build, integrate, and deploy AI services into applications using modern development practices, APIs, and scalable architectures.

5. AI-Assisted Development Productivity

Leverage AI-enabled coding tools such as Cursor and GitHub Copilot to accelerate development, improve code quality, and enhance efficiency.

6. Cross-Functional Collaboration

Work closely with product, business, and engineering teams to translate business requirements into effective AI-driven solutions.

7. Model Monitoring & Continuous Improvement

Monitor model performance, analyze outputs, and iteratively improve accuracy, safety, and overall system effectiveness.

Qualifications:

1. Hands-on experience analyzing, developing, fine-tuning, and optimizing GPT and Anthropic-based large language models.

2. Strong expertise in prompt design, experimentation, and optimization to enhance response accuracy and reliability.

3. Proven experience building, training, and deploying chatbots or conversational AI systems.

4. Practical experience using AI-assisted coding tools such as Cursor or GitHub Copilot in production environments.

5. Solid programming experience in Python, with strong problem-solving and development fundamentals.

6. Experience working with embeddings, similarity search, and vector databases for retrieval-augmented generation (RAG).

7. Knowledge of MLOps practices, including model deployment, versioning, monitoring, and lifecycle management.

8. Experience with cloud environments such as Azure, AWS for deploying and managing AI solutions.

9. Experience with APIs, microservices architecture, and system integration for scalable AI applications.

Why Join Us

• Build cutting-edge AI-powered B2B SaaS products

• Own architecture and technology decisions end-to-end

• Work with highly skilled ML and Full Stack teams

• Be part of a fast-growing, innovation-driven product organization

If you are a results-driven AiML Senior Developer with a passion for developing innovative products that drive business growth, we invite you to join our dynamic team at ProductNova.

What You’ll Be Doing

• 🛠 Write code for web and mobile apps, fix bugs, and work on features that people will actually use.
• 💡 Join brainstorming sessions and help shape our products.
• 🚀 Things move fast here, and you’ll learn as you go.
• 🤝 Work closely with everyone—designers, developers, and even marketing folks.
• 🔧 Diving into Our Tech Stack: React, React Native Node, Express, Python, FastAPI, and PostgreSQL.

What We’re Looking For

We’re not looking for perfection, but if you’re curious, motivated, and excited to learn, you’ll fit right in!

For Backend Engineers

• 💻 Strong knowledge of Python, FastAPI, and PostgreSQL.
• 🔍 Solid understanding of Low-Level Design (LLD) and High-Level Design (HLD).
• ⚡ Ability to optimize APIs, manage databases efficiently, and handle real-world scaling challenges.

For Frontend Engineers

• 💻 Expertise in React Native.
• 🎯 Knowledge of native Kotlin (Android) and Swift (iOS) is a big bonus.
• 🚀 Comfortable with state management, performance optimization, and handling platform-specific quirks.

General Expectations for All Engineers

• 🛠 While you’ll be specialized in either frontend or backend, you should be good enough to fix bugs in both.
• 🔍 You enjoy figuring things out and experimenting until you get it right.
• 🤝 Great communication skills and a collaborative mindset.
• 🚀 You’re ready to dive in and make things happen.

Interview Process

If we like your application, Be ready to:

1. Solve a data structures and algorithms (DSA) problem in your preferred programming language.
2. Answer questions about your specialized area (frontend/backend) to showcase your depth of knowledge.
3. Discuss a real-world problem and how you’d debug & fix an issue in both frontend and backend

Why Join Us?

• 💡 Your work will matter here—no busy work, just real projects with real outcomes.
• 🚀 Help shape the future of our company.
• 🎉 We’re all about solving cool problems and having fun while we do it.

About Vyapar:

We are a technology and innovation company in the fintech space, delivering business accounting software to Micro, Small & Medium Enterprises (MSMEs). With more than 5 Million users across 140 countries, we are one of the fastest growing companies in this space. We take the complexity out of invoicing, inventory management & accounting, making it so simple, such that small businesses can spend less time on manual bookkeeping and spend more time focusing on areas of business that matter.

Role Summary:

Vyapar's Engineering team builds the technology platform that eases and digitizes our customers' bookkeeping and enables the transition of cumbersome accounting data from general bookkeeping to a digitized always available resource.

The Javascript engineer will be responsible for the developing features in Vyapar application. Strong understanding of HTML, CSS, JavaScript, Responsive design, JQuery, React, database etc. concepts is critical

Key Responsibilities:

• Translate designs and wireframes into high-quality code.
• Design, build and maintain high performance, reusable, and reliable code.
• Ensure the best possible performance, quality, and responsiveness of the application.
• Use of complex algorithm to build the business requirements.
• Help maintain code quality, organization, and automatization.
• Ability to understand business requirements and translate them into technical requirements

Desired Skills And Requirements

Must have

• Strong JavaScript
• HTML, CSS 
• React/Angular/JQuery/Vue
• Problem-solving skills, and Data Structures.
• Strong knowledge of SQL database or RDBMS.

Good to have

• Familiarity with RESTful APIs to connect applications to back-end services.
• Strong knowledge of Web UI design principles, patterns, and best practices.
• Experience with offline storage and performance tuning.
• Experience and understanding of database concepts and sql queries.
• Familiarity with cloud message APIs and push notifications.
• Familiarity with continuous integration.
• A knack for benchmarking and optimization.

Experience:

• Minimum 4 years of experience in JavaScript
• Minimum 3 years of experience in HTML, CSS
• Minimum 3 years of experience in SQL/ RDBMS.

Education:

• A full-time B.E/ B.Tech Degree from a recognized university.

Role Description

Responsible for developing web applications as per the product requirements with a pre-approved design across multiple platforms using programming tools for Web development and Mobile application development. Work collaboratively with ML scientists, engineers, product managers, and Business SMEs in seeking details on the requirements, writing up technical specifications, proposing the tools and methods for the solution, developing the application after necessary approvals, unit testing the solution, providing testing support, and troubleshooting support for testers, participating in deployment plan, deployment and post-deployment support. Application development will involve wrapping the deep learning algorithms to provide a smart and engaging user experience.

General Requirements

• Should be familiar and have a working knowledge of different databases like MySQL, MongoDB, web servers (e.g. Apache)
• Knowledge of multiple back-end languages (e.g. C#, Java, Python) and JavaScript frameworks (e.g. Angular, React, Node.js)
• Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery)
• Fluent with multi-tier systems, client-server concepts.
• Experience in debugging application programs, troubleshooting techniques, root cause analysis of problems.
• Must possess the good understanding and proven techniques incorporating Data Security concepts in application development.
• Knowledge and experience with applications running on on-premises data centers and on Cloud services.
• Experience working in a Project Team and exposure to test-driven development, different project methodologies such as Agile.
• Very good communication skills with collaborative, positive, can-do, user-centered attitude in a team environment.
• Innovative thinking capabilities, ability to multitask, maintain attention to detail in pressure and time sensitive situations.
• Demonstrated ability to interpret requirements and deliver reliable, scalable, tested solutions.
• Fluent in English, reading, writing, speaking and listening.

Key Requirements

• BS / B. Tech / BE degree in Computer Science or equivalent.
• Minimum 3 years of experience in building on web technologies and frameworks (JavaScript / TypeScript / HTML / CSS / AngularJS / Electron / ReactJS) database (MySQL or MongoDB ) and backend Technologies (Python, NodeJS, Java etc)
• Experience developing desktop and mobile application

passion for building and delivering great software with a strong sense of ownership.

• 4+ years of experience in building web applications using React, Node.js, GraphQL integrations with NoSQL or relational database systems.
• Working experience in building and deployment applications on AWS platform a plus.
• Working experience on docker and microservice a plus.
• Strong experience with Build and Release, Agile processes and Estimation/Planning
• Must have strong debugging and troubleshooting skills, with solid understanding of logging and exception handling. 

Full Stack Developer with excellent and strong experience in the design and development of secure and high performing applications/products using MEAN Stack on Cloud-based architecture using DevOps processes.

Roles and Responsibilities

• 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.

Technical Experience/skills & Qualifications required:

• Degree in Computer Science
• 6 to 8 years of experience in Information Technology with at least 4+ years in MEAN stack development
• Highly experienced with back-end programming languages Ex: Python, Ruby, Java, .NET, JavaScript etc
• Proficient experience using advanced JavaScript libraries and frameworks such as AngularJS, ReactJS, Node JS, KnockoutJS, BackboneJS, etc.
• Development experience for both mobile and desktop.
• Understanding of server-side languages including such-as Jade, EJS, Jinja, etc.
• Experience with cloud message APIs and usage of push notifications
• Experience in development using the DevOps tools like Kubernetes, GitHub, Jenkins
• Experience in developing applications on the cloud platform especially AWS
• Familiarity with database technology such as MySQL, Oracle, and MongoDB
• Understanding and implementation of security and data protection.
• Experience working with JIRA and Gitlab
• Maintain code integrity and organization
• Experience working with graphic designers and converting designs to visual elements.

Other Generic and Behavioural Skills

• Experience in Healthcare domain and HIPAA compliance awareness would be a big plus
• Strong team player and ability to adapt to a dynamic and agile environment
• Design thinking and ability to deliver innovative solutions
• Strong organizational and project management skills
• Excellent verbal communication skills.
• Good problem-solving skills.
• Attention to details

Why should you apply:

• Great opportunity to be a part of booming Healthcare sector and ride the wave
• Big opportunity to work with the leadership team which promotes and encourages innovation-driven thought process and execution
• Opportunity to work with young minds using the latest technologies
• Ability to work in an environment that will enable you to realize ownership with the freedom to learn and deliver a great product
• Fantastic opportunity to grow with the company and achieve great heights of success.

Ability to interact with team members and stakeholders from different cultures within and outside India