Full stack Developer

Senior Software Developer (AI integration)

Role Overview

We are looking for a Senior Full-Stack Engineer to drive the development, integration, and scaling of our eCommerce applications. This is a hands-on coding role requiring deep expertise in full-stack ecosystems (Laravel + React), proven track record of integrating and deploying AI models/workflows. Strong eCommerce domain knowledge (Shopify and/or Magento 2) would be a plus.

As our product suite heavily prioritizes AI-driven features, you will be the core technical driver responsible for building smart workflows, setting up local LLMs, and bridging the gap between modern AI capabilities and robust web applications.

Work Location: Remote (Open to talent across India; office is based in Indore).

Required Technical Skills:

AI & LLM Integration (Mandatory)

• LLM Implementation: Hands-on experience setting up, fine-tuning, or self-hosting local LLMs (e.g., via Llama, Mistral, Ollama) and utilizing cloud AI APIs (OpenAI, Anthropic, etc.).
• AI Frameworks & Workflows: Experience building custom agentic workflows, prompt engineering pipelines, or using orchestration frameworks (LangChain, LlamaIndex, or JS/PHP equivalents)..
• Vector Databases: Familiarity with embeddings and vector search (e.g., Pinecone, Milvus, Chroma, or pgvector).

Core Full-Stack

• PHP (expert level)
• Laravel (architecture-level understanding: queues, jobs, service layer)
• React.js (SPA, state management, performance optimization)
• HTML, CSS, JavaScript (ES6+)
• GraphQL & REST API design
• Node.js (real-time systems like Socket.io)

Database & Systems

• MySQL/PostgreSQL (schema design, optimization)
• Caching: Redis
• Queue systems: RabbitMQ / similar

Architecture Knowledge

• Microservices & event-driven architecture
• API-first and headless systems
• Scalability & distributed systems

E-commerce Domain 

• Shopify: Deep understanding of Shopify APIs, App ecosystem, and headless commerce.
• Magento 2: Practical understanding of Magento's architecture, module system, and GraphQL (hands-on customization experience is highly valued).

Note: Preference will be given to candidates with experience in any of the two platforms, but we are open to consider candidates who do not have direct exposure to these platforms if they have exceptional track record with AI implementations.

Good to Have

• Experience with Python (often useful for AI/data manipulation scripts).
• Cloud Infrastructure (AWS / DigitalOcean, Cloudflare).
• Familiarity with CI/CD tools and containerization (Docker).

Roles & Responsibilities:

• Hands-on Development: Write clean, maintainable, and highly efficient code across the backend (Laravel) and frontend (React).
• AI Feature Engineering: Own the end-to-end implementation of AI capabilities—from setting up local LLM instances to writing the integration logic that connects AI flows to our eCommerce systems, with a strong focus on optimizing token streaming processing and reducing execution latency
• Feature Ownership: Take high-level product requirements and transform them into concrete technical solutions, ensuring scalable code architecture.
• System Performance: Optimize application speed and reliability, utilizing caching (Redis) and async processing to ensure seamless user experiences.
• Security & Infrastructure: Implement secure coding practices, manage API rate-limiting, and collaborate on Docker/CI/CD pipelines.
• Technical Mentorship: Review code, champion best practices, and help upskill mid-level developers on the team.
• Team Collaboration: Work closely with product, design, and engineering teams. Act as technical decision owner.

Job Title : Senior Software Engineer (Full Stack Capability)

Experience : 4+ Years

Location : West Patel Nagar, New Delhi

Employment Type : Full-Time

About the Role :

We are looking for a highly skilled Senior Software Engineer with 4+ years of experience in designing, developing, and maintaining scalable web applications. The ideal candidate should have strong backend expertise in Java, Python and Node.js while also being capable of handling frontend development when required.

This role requires excellent problem-solving abilities, ownership mindset, and strong communication skills to collaborate effectively with cross-functional teams and stakeholders.

Key Responsibilities :

• Design, develop, and maintain robust backend applications using Java and Node.js.
• Build and consume RESTful APIs and microservices.
• Develop scalable, secure, and high-performance applications.
• Work with frontend technologies to build and enhance user-facing features.
• Collaborate with product managers, designers, and other developers to deliver business requirements.
• Optimize application performance, troubleshoot issues, and implement best practices.
• Write clean, maintainable, and well-documented code.
• Participate in code reviews and contribute to technical discussions.
• Manage database design, optimization, and integrations.
• Ensure application security, scalability, and reliability.

Required Skills & Qualifications :

• 4+ years of professional software development experience.
• Strong hands-on experience with Java, Spring Boot, and related backend frameworks.
• Strong experience with Node.js, Express.js, and API development.
• Good understanding of Microservices Architecture.
• Experience with MySQL, PostgreSQL, or MongoDB.
• Knowledge of Redis, caching mechanisms, and message queues is a plus.
• Familiarity with cloud platforms such as AWS, Azure, or GCP.
• Experience with version control systems like Git.
• Understanding of CI/CD pipelines and deployment processes.

Frontend Requirements :

• Ability to work on frontend development when required.
• Experience with React.js, JavaScript, TypeScript, HTML5, and CSS3.
• Understanding of responsive design and modern UI development practices.

Soft Skills :

• Excellent verbal and written communication skills.
• Strong stakeholder management and client interaction abilities.
• Ability to work independently and take ownership of projects.
• Strong analytical and problem-solving skills.
• Team player with a collaborative mindset.

Preferred Qualifications :

• Experience working in product-based or fast-paced startup environments.
• Knowledge of Docker, Kubernetes, and DevOps practices.
• Experience with Agile/Scrum methodologies.

About POSHN

POSHN is a dynamic India-based ag-fintech venture founded in 2020 and supported by leading marquee financial institutions. We are on a mission to organize and digitally transform the global agri-supply chain market. By applying first principles thinking, we are re-imagining solutions with a tech-product-first mindset. The agri-supply chain space is gigantic, complex, and has been largely unorganized. At POSHN, we are taking the hassle out of it by creating a platform that empowers our products and facilitates a better, efficient, and seamless experience between stakeholders.

About the Team

Our core team consists of alumni from BITS Pilani, IIM, and XLRI, each with a decade-long experience in supply chain, technology, and product development. Previously, we have built several highly impactful tech-product startups from the ground up.

About the Role: Full Stack Engineer

We are looking for a talented and motivated Full Stack Developer with 2-4 years of experience to join our team. In this role, you will work closely with our team to define the product roadmap and take ownership of the web development stack. You will have the flexibility to innovate and implement new solutions that enhance our platform, working alongside UX, data engineering, and other key stakeholders.

Key Responsibilities

• Full Stack Development: Design, build, and configure applications to meet business processes and application requirements. You will work across the frontend and backend, ensuring seamless integration and functionality.

• Frontend Engineering: Convert designs into smooth, user-friendly interfaces. Analyze UI/UX designs and suggest the best approaches for implementation.

• Backend Engineering: Build scalable backend systems using microservices architecture. Optimize database models, queries, and ensure high availability and performance.

• Requirements Gathering: Capture and clearly articulate technical requirements by working closely with stakeholders and end customers. Prioritize tasks to meet business objectives.

• Code Quality: Write testable, scalable, and efficient code. Lead code reviews and ensure that software quality standards are met.

• Solution Implementation: Take ownership of assigned products, ensuring timely and efficient delivery. Carry out solution testing, including root-cause analysis, and suggest logical alternatives when needed.

Career Experience

• Experience: 2-4 years of experience in full stack development, including significant contributions to at least three web development projects.

• Technical Expertise: Proficient in frontend frameworks (VueJS, ReactJS, or AngularJS) and backend technologies (NodeJS, Go, or Python).

• Microservices Architecture: Experience building scalable backend microservices architecture.

• Database Management: Expertise in SQL, NoSQL, and database optimization.

• Agile Methodologies: Familiar with agile development practices, including coding standards, documentation, unit testing, and version control using Git.

Bonus Points/Nice to Have

• E-commerce/Supply Chain Experience: Any experience or knowledge in the e-commerce or supply chain industry.

About You

• Creative and Innovative: You enjoy designing and building complex software systems and are not afraid to experiment and try new approaches.

• Ownership: You take responsibility for your work and are committed to delivering high-quality solutions.

• Continuous Learner: You are curious and eager to stay updated with the latest technologies and industry trends.

• Analytical Mind: You have a keen eye for detail and are capable of turning ideas into working applications that deliver real value to customers.

Benefits

• Competitive Salary and ESOPs: Rewarding you for your best work.

• Generous Leave: We believe in work-life balance.

• Exciting Startup Environment: Be a key member of a startup transforming the agri-supply chain industry.

• Collaborative Culture: Work in an open, fun, and supportive environment.

• Training & Development: Grow in the areas that interest you most.

How to Apply

If you are interested for this role, kindly apply on the same. This JD merges the best elements from both descriptions, tailored for a Full Stack Developer role with 2-4 years of experience. Let me know if you need any further adjustments!

● In-depth knowledge of full-stack development principles and best practices.

● Expertise in building web applications with strong proficiency in languages like Node.js, React, and Go. 

● Experience developing and consuming RESTful and gRPC API Protocols.

● Familiarity with CI/CD workflows and DevOps processes. 

● Solid understanding of cloud platforms and container orchestration technologies.

● Experience with Kubernetes deployment and workflows using tools like Argo.

● Experience applying AI/ML models to optimize workflows or enhance product features, with familiarity in frameworks like TensorFlow, MLflow, Kubeflow, or PyTorch. 

● Experience fine-tuning existing AI/ML models to adapt to specific use cases or datasets, ensuring optimized performance. 

● Experience with Workflow Orchestration tools like Temporal and Windmill.

● Strong background in System Design. 

● Hands-on experience with Queuing Mechanisms such as RabbitMQ, Redis, and Kafka. 

● Experience with designing and building user-friendly interfaces using Tailwind CSS and Radix UI. 

● Excellent understanding of distributed systems, databases, and APIs. ● A passion for writing clean, maintainable, and well-documented code. ● Strong problem-solving skills and the ability to work independently as well as collaboratively. 

● Excellent communication and interpersonal skills. 

Bonus points if you have: 

● Experience with building self-serve platforms or user onboarding experiences.

● Familiarity with Infrastructure as Code (IaC) tools like Terraform.

● A strong understanding of security best practices for Kubernetes deployments.

● Grasp on setting up Network Architecture for distributed systems. 

Minimum Qualifications

• Excellent problem-solving skills and the got right attitude to work in fast paced environments
• Bachelor’s degree in computer science or equivalent practical experience
• 2 to 5 years of experience in software development using modern frontend frameworks in JavaScript/TypeScript.
• Strong understanding of data structures and algorithms.

Preferred Qualifications

• Strong in Object Oriented Programming and Design Patterns.
• You have experience of working closely with the product and design teams to deliver the product that materially impacts the business and improves the customer experience
• You follow SOLID principles and have experience with microservice architecture, have designed and implemented high performance scalable services/APIs.
• You have experience with component based architectures, PWA, Service workers, UI patterns and libraries most preferably ReactJS / NextJS
• Write client side high performant applications & develop prototypes
• Experience working with Node, NestJS / Express.
• Experience working with PostgreSQL, Redshift, Dynamo, Mongo and Cassandra databases.
• Experience working with RabbitMQ, Kafka.
• You constantly learn and adopt best practices at work, keeping in mind app performance, security, and scalability.
• You have experience working in distributed systems and built/designed systems to failover, event streaming, caching strategies
• You have experience with Docker/Kubernetes in AWS or any cloud computing platforms. And, are familiar with CI/CD processes.

Bonus if you are great communication and team collaboration skills.

• Own the development/improvement of products and features.
• Own the responsibility for creating a great user experience on the products and features you work on.
• Build features end-to-end: both the user interfaces and the backend APIs.
• Set technical standards and lead the team in building a world-class scalable software development process.
• Lead large-scale design updates and rollouts.
• Partner with infrastructure engineers to scale the product.
• Investigate state-of-the-art frameworks and tooling to build our next-generation architecture.
• Guide and mentor junior team members 

• 8+ years of relevant front-end development experience, previous start up experience is highly desirable.
• Experience building, running, and debugging single-page apps in a modern JavaScript framework.
• Demonstrated knowledge of React, Redux and CSSAbility to work independently as well as cross-functionally with other engineering teams and product.
• Tech Lead / Management experience.

• Experience with full-stack development.
• Experience with building APIs using spring boot.
• Experience with front-end test frameworks (Jasmine/Mocha/Jest)
• Exposure to mobile platforms

1. Building REST APIs using Node.js, Express, and MongoDB
2. Working on Flutter application development using various advanced strategies like state management, API integrations, and scalable databases
3. Working with Socket.io library for Flutter and Node.js product development
4. Learning and developing the cryptographic functions for product security
5. Managing product workloads on public/private cloud - we are currently on AWS & also planning to be on GCP/Azure (our platform would also be available as on-premise deployment, you will handle these deployments)
6. Develop API based architecture in order to ensure the business growth and integration-al capabilities of the product
7. Work on using GIT and CI-CD for product version control and continuous delivery

Responsibilities:

• Building and developing web application using Angular 2+, Node Js and Mongo DB
• Maintenance and support of existing application
• Problem solving, debugging and analytical skills
• Monitoring and deploying application on Microsoft Azure

Technical / Functional Skills:

• 2+ years of hands-on experience in Angular 2+, Node Js, Mongo DB and Microsoft Azure

• Strong experience in performance tuning of complex Mongo DB queries
• Good understanding of Typescript, JavaScript (ES6), CSS, HTML
• Experience in the contact center industry preferred
• Experience in using Git/Bitbucket or any version control tools
• Graduate in IT, Computer Science or similar relevant field preferred

Attitudinal skills:

• Must be able to work without much assistance
• Great communication and interpersonal skills
• Analytical and process-oriented mindset