Senior Software Engineer

Job Title : Full Stack Engineer

Location : New Delhi

Job Type : Full-Time

About the Role :

We are seeking a passionate Full Stack Engineer who enjoys building scalable, high-performance applications across web and mobile platforms.

This role is ideal for someone eager to work in a fast-paced startup environment, contributing across the full development lifecycle.

Mandatory Skills :

React.js, Next.js, React Native, Node.js, Express.js, PostgreSQL, AWS (EC2/S3/RDS/IAM), RESTful APIs.

Key Responsibilities :

• Design, build, and maintain scalable applications for web and mobile.
• Translate UI/UX wireframes into efficient, reusable, and maintainable code.
• Optimize applications for maximum performance, scalability, and reliability.
• Work on both front-end and back-end development using modern frameworks.
• Participate in code reviews, debugging, testing, and deployment.
• Collaborate with cross-functional teams to deliver high-quality products.

Requirements :

• Experience : 1+ years of software development (internships + full-time combined acceptable).
• Frontend Skills : React.js, Next.js, React Native.
• Backend Skills : Node.js, Express.js, RESTful APIs.
• Database : Strong knowledge of PostgreSQL.
• Cloud : Exposure to AWS services (EC2, Elastic Beanstalk, RDS, S3, ElasticCache, IAM).
• Additional : Experience with Redis and BullMQ is a strong plus.
• Strong debugging, problem-solving, and analytical skills.
• Enthusiasm for working in a dynamic startup environment.

About Marseer AI

Marseer AI (www.marseerai.com) is a Seattle-based company building an AI-powered marketing intelligence platform for DTC and retail e-commerce brands. The platform combines brand strategy, customer data, automation, and generative AI to help marketing teams drive consistent, data-driven engagement across email, SMS, paid media, SEO, and affiliate channels.

Role Overview

We are looking for an experienced AI Engineer - Full Stack Developer to join the Marseer platform team. This is a dual-track role: you will build and maintain AI agent pipelines, LLM integrations, and RAG-based intelligence systems on the backend, while also owning frontend interfaces that surface insights, recommendations, and campaign outputs to marketing teams and brand operators.

You should be equally comfortable designing multi-step agentic workflows in Python and building clean, responsive product interfaces in React/Next.js. You understand how LLMs behave in production, know how to engineer prompts and tool chains for reliability, and care deeply about the end-to-end user experience.

What You Will Do

- Design and implement multi-step AI agent workflows using LLM orchestration frameworks such as LangChain, LangGraph, CrewAI, or similar.

- Build and maintain RAG pipelines, including chunking strategies, embedding generation, vector store management, and retrieval tuning.

- Integrate with LLM providers such as OpenAI, Anthropic, or others, including prompt engineering, tool/function calling, structured output generation, and context window management.

- Develop AI-driven features such as campaign brief generation, audience recommendations, content variant creation, and performance insight summarization.

- Implement evaluation and observability frameworks to monitor LLM output quality, latency, and cost in production.

- Build frontend interfaces using React and Next.js, including dashboards, agent interaction UIs, campaign builders, and insight surfaces.

- Design and implement RESTful and/or GraphQL APIs in Python (FastAPI or Flask) or Node.js to serve AI outputs to the frontend.

- Integrate frontend with backend AI services, streaming LLM responses, and real-time status updates.

- Work with structured and unstructured marketing data, campaign performance metrics, audience segments, content libraries, and brand strategy documents.

- Integrate with marketing platforms and data sources such as Klaviyo, Google Ads, Meta, and Shopify.

Requirements

- 5-10 years of professional software engineering experience, with meaningful time in both backend and frontend development.

- Proven experience building and deploying LLM-powered applications in production, not just prototypes.

- Strong proficiency in Python for backend and AI development.

- Strong proficiency in React and Next.js for frontend development.

- Hands-on experience with LLM orchestration frameworks such as LangChain, LangGraph, CrewAI, or equivalent.

- Experience building RAG pipelines, vector stores such as Pinecone, Weaviate, pgvector, or similar, embedding models, and retrieval strategies.

- Experience with API design, REST or GraphQL, and backend service architecture.

Strongly Preferred

- Experience designing and building multi-agent or agentic AI systems with tool use, memory, and planning capabilities.

- Familiarity with prompt engineering best practices, structured output generation, and LLM evaluation methodologies.

- Experience with streaming LLM responses and real-time UI updates using SSE or WebSockets.

- Prior work in a SaaS product company shipping production features.

- Familiarity with marketing platforms, e-commerce data, or martech ecosystems.

Good to Have

- TypeScript and modern frontend tooling such as Tailwind CSS or shadcn/ui.

- Familiarity with Snowflake or other cloud data warehouses as data sources for AI pipelines.

- Experience with observability tools for LLM applications such as LangSmith, Helicone, Arize, or similar.

- Understanding of marketing concepts such as segmentation, campaign lifecycle, attribution, and content personalization.

What We Are Looking For

- Availability to work US business hours; overlap with US Eastern or Pacific timezone is required for client collaboration and team standups.

- Strong written and verbal English communication.

- Product sense and ownership mindset.

- Comfort with ambiguity in non-deterministic LLM-powered systems.

- Collaborative working style across engineering, design, and client-facing functions.

What We Offer

- Competitive compensation based on experience.

- Fully remote role; work from anywhere in India, with Hyderabad-based candidates preferred.

- High-impact work at the frontier of applied AI for marketing and e-commerce.

- Direct exposure to real brand problems, real data, and real production AI systems.

- A small, senior team where your architecture decisions matter and your contributions are visible.

We are a forward-thinking company Hookux seeking a skilled Full Stack Developer to join our team. You will work on a variety of exciting projects that require problem-solving, innovation, and scalability. One such project is, a stock market and crypto investing simulation platform that teaches children financial skills through gamified competition.

Key Responsibilities:

• Develop and maintain robust, scalable, and efficient front-end and back-end systems.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Design and implement API endpoints and server-side logic.
• Work closely with the design and product teams to ensure the technical feasibility of UI/UX designs.
• Optimize the application for maximum speed and scalability.
• Write well-documented, clean code.
• Troubleshoot and debug applications.
• Stay up-to-date with emerging technologies and industry trends.

Technical Skills & Experience:

• Proficient in JavaScript/TypeScript, with expertise in React.js for front-end development.
• Strong experience with Node.js, Express.js, or other backend technologies.
• Familiarity with database technologies such as MongoDB, PostgreSQL, or MySQL.
• Experience with RESTful APIs and third-party integrations.
• Knowledge of cloud platforms like AWS, Azure, or Google Cloud.
• Proficient in version control (e.g., Git) and collaboration tools.
• Experience with agile methodologies and continuous integration/deployment (CI/CD).

Bonus Skills:

• Experience with React Native for mobile app development.
• Familiarity with blockchain technology or cryptocurrency-related platforms.
• Experience with containerization (e.g., Docker, Kubernetes).
• Knowledge of testing frameworks and tools.

Qualifications:

• Bachelor's degree in Computer Science, Engineering, or related field (or equivalent practical experience).
• years of experience in full stack development.
• Ability to manage multiple priorities and work independently as well as in a team environment.

Benefits:

• Competitive salary and performance bonuses.
• Opportunities for career growth and learning.
• Flexible working hours and remote working options.

mail me your CV and portfolio at hr @ hookux.com

Mission

Own architecture across web + backend, ship reliably, and establish patterns the team can scale on.

Responsibilities

• Lead system architecture for Next.js (web) and FastAPI (backend); own code quality, reviews, and release cadence.
• Build and maintain the web app (marketing, auth, dashboard) and a shared TS SDK (@revilo/contracts, @revilo/sdk).
• Integrate Stripe, Maps, analytics; enforce accessibility and performance baselines.
• Define CI/CD (GitHub Actions), containerization (Docker), env/promotions (staging → prod).
• Partner with Mobile and AI engineers on API/tool schemas and developer experience.

Requirements

• 6–10+ years; expert TypeScript, strong Python.
• Next.js (App Router), TanStack Query, shadcn/ui; FastAPI, Postgres, pydantic/SQLModel.
• Auth (OTP/JWT/OAuth), payments, caching, pagination, API versioning.
• Practical CI/CD and observability (logs/metrics/traces).

Nice-to-haves

• OpenAPI typegen (Zod), feature flags, background jobs/queues, Vercel/EAS.

Key Outcomes (ongoing)

• Stable architecture with typed contracts; <2% crash/error on web, p95 API latency in budget, reliable weekly releases.

Roles and Responsibilities 

1) Understand client requirements and functionalities. 

2) Write well-designed, testable, efficient code. 

3) Responsible for solving complex technical issues. 

4) Ensure quality projects are delivered within defined timelines. 

5) Active involvement in client communication to understand functional requirements. 

6) Maintain high standards of quality for code, documentation and other deliverables. 

Required Skills 

1) Good experience in React/Angular

2) Hand on Node.JS./Express JS 

3) Database : MYSQL/MongoDB 

4) Experience in Java Script, Typescript. 

5)Good experience in HTML5, CSS3, JavaScript, Jquery 

6) Experience working in an Agile environment. 

7) Good communication skills.

Qualifications:

BTech/BE in computer science, electrical, electronics or related fields 5+ years of full stack design and development experience High emotional intelligence, empathy and collaborative approach. Experience in Angular Javascript frameworks, CSS, HTML5, NodeJS, ExpressJS, MongoDB to handle full stack web development. Experience with developing rich dynamic front end applications using Angular and CSS frameworks like BulmaCSS, Angular Material, Bootstrap, etc. Knowledge of GraphQL would be an added advantage. Knowledge of Cloud services like AWS, Heroku, Azure is preferable. Should be a quick learner to keep up with the pace of the ever changing world of technology as the candidate will get excellent exposure to the latest and trending Cloud based Saas technologies and best practices while working with varied customers based across the globe.

Responsibilities:

Develop web applications covering end to end software development life cycle right from writing UI code using Angular to backend API code using NodeJS and managing databases like MongoDB, MySQL, etc. Involved in full stack code management from Git check-ins to running automated builds and deployments using DevOps practices to deploy to public cloud services like AWS, Azure, Heroku, etc. Handling full-stack web development workflow right from front end to backend to CI/CD workflows. Design and Develop the tech architecture and work closely with CEO and CTO of the company Drive and guide with work of other engineers on the team

This is a leadership role and candidate is expected to wear multiple technical hats including customer interactions and investor discussions

The desired candidate must have 6+ years of total experience in Web Applications Development with good expertise in MEAN, MERN Stack (MongoDB, ExpressJS, AngularJS, Node.js, React.js), strong development and coding skills, good analytical and problem-solving skills. 

**Responsibilities**

- Coding and Development. The desired candidate will be responsible for developing next-generation web applications & software products

- Analyzing requirements, problems and solving them with the best solution

- Producing high-quality code without much supervision and on-time delivery

- Working in a cross-functional team, collaborating with peers during the entire SDLC
- Defining code architecture decisions to support a high-performance and scalable product

**Technical Skills**

- In-depth knowledge of MongoDB, AngularJS, Node.js, React.js and good work experience in MEAN /  MERN Stack.

- Should have good experience in back-end development with Node.js

- Experience implementing front-end applications using HTML5, Angular and / or React, LESS / SASS.

- Good knowledge of OOPS concepts, Web Development Concepts, HTML, JSON, REST API development.

- Strong coding skills, good analytical and problem-solving skills

**Non-Technical Skills**

- Must have good oral and written communication skills

- Must be dedicated to delivering high-quality work and adhering to timelines

- Must be a good team player, good learner and a self-starter

- Must have the ability to work independently
- Must be creative enough to bring fresh ideas

We are looking for experienced Full Stack Web Developers. Web Application developer who possesses a passion for pushing web technologies to the limits and will work with our team of talented engineers to design and build the next generation of our web applications.

Responsibilities

• Design and build scalable, mobile-first web applications
• Collaborate with cross-functional teams to define, design, and ship new features
• Unit-test code for robustness, including edge cases, usability, and general reliability
• Work on bug fixing and improving application performance
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency

Skills

• BS/MS degree in Computer Science, Engineering or a related subject.
• 3 to 5 years of industry experience as a Full Stack Developer with focus in React.js and Node.js 
• Experience with Express.js and Node.js is a must.
• Experience with third-party libraries and APIs is required.
• Experience using Google Firebase is an asset.
• Experience in UI/UX design is preferred.
• You should also be up to speed on practices like TDD, CI/CD, and pair programming.
• You should be very comfortable working with Agile, Lean and Continuous Delivery practices -- and love it as much as we do.
• Understanding and playing a part in the entire cycle of software consulting and delivery (ideation, project conception, UX, code, testing, deployment, and around again).
• Working knowledge of the general web application landscape, architectures, trends, and emerging technologies.
• Solid understanding of the application development life cycle.