Full Stack Developer

Required Skills & Qualifications

● Strong hands-on experience with LLM frameworks and models, including LangChain,

OpenAI (GPT-4), and LLaMA

● Proven experience in LLM orchestration, workflow management, and multi-agent

system design using frameworks such as LangGraph

● Strong problem-solving skills with the ability to propose end-to-end solutions and

contribute at an architectural/system design level

● Experience building scalable AI-backed backend services using FastAPI and

asynchronous programming patterns

● Solid experience with cloud infrastructure on AWS, including EC2, S3, and Load

Balancers

● Hands-on experience with Docker and containerization for deploying and managing

AI/ML applications

● Good understanding of Transformer-based architectures and how modern LLMs work

internally

● Strong skills in data processing and analysis using NumPy and Pandas

● Experience with data visualization tools such as Matplotlib and Seaborn for analysis

and insights

● Hands-on experience with Retrieval-Augmented Generation (RAG), including

document ingestion, embeddings, and vector search pipelines

● Experience in model optimization and training techniques, including fine-tuning,

LoRA, and QLoRA

Nice to Have / Preferred

● Experience designing and operating production-grade AI systems

● Familiarity with cost optimization, observability, and performance tuning for

LLM-based applications

● Exposure to multi-cloud or large-scale AI platforms

Location: Mumbai

Experience Required: 2+ Years

Job Type: Full-Time

Notice Period: Immediate Joiners

About the Role

We are seeking a skilled and experienced Full Stack (MERN) Developer to join our product engineering team. The ideal candidate must have experience working in a product-based software development company and should have hands-on involvement in e-commerce platform projects.

Mandatory Criteria

• Candidate must be currently working or have prior experience in a product-based software development company
• Candidate must have worked on at least one e-commerce platform project (end-to-end involvement)

Key Responsibilities

• Develop and maintain scalable web applications using MongoDB, Express.js, React.js, and Node.js
• Translate UI/UX designs into high-quality front-end code
• Build and integrate RESTful APIs
• Ensure performance, quality, and responsiveness of applications
• Participate in design discussions, code reviews, and contribute to technical documentation
• Work in a collaborative, agile development environment

Required Skills

• Strong proficiency in JavaScript, React.js, Node.js, and Express.js
• Hands-on experience with MongoDB or other NoSQL databases
• Solid understanding of RESTful APIs and architectural patterns
• Knowledge of version control systems like Git
• Understanding of CI/CD and cloud-based deployment practices
• Good grasp of performance optimization, caching, and security practices

Job Role: MERN Stack developer

Experience: 2-4 years

Location: Remote

About Us:

At Troopr Labs, we are imagining a future where an AI-powered conversational platform is at the center of your digital workplace delivering delightful employee experiences. The potential of this future is what drives us every day.

We are a small tightly knit team building world class software products used by companies like Spotify, Starbucks, Netflix and Snowflake. This is a full time remote position with the opportunity to work directly with the founders and make a direct and immediate impact on the productivity of 1000s of teams around the world.

As a Product Developer at Troopr, you'll be at the forefront of building world class AI products with a particular focus on conversational chatbot solutions.

Typical day in the job:

* Develop, test, and deploy clean, maintainable, and well-documented code

* Create interactive and user-friendly web interfaces using React

* Implement server-side logic, RESTful APIs and database interactions

* Design, maintain, and optimize MongoDB databases

* Participate in code reviews to ensure code quality

* Troubleshoot production issues and implement fixes for them

* Optimize code for performance and scalability

* Stay current on relevant industry trends, technologies and best practices

* Collaborate across teams in an agile environment

* Mentor junior developers as needed

Typical profile of person who can do this job well:

* 3 to 5 years of professional software development experience, with a focus on the MERN stack.

* You have excellent analytical and critical thinking skills

* You have exceptionally strong understanding of Javascript fundamentals

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.

Job Summary:

Senior React Native developer will be responsible for developing, designing and maintaining the core framework of mobile applications for our platform. This includes tasks such as creating and implementing new features, troubleshooting and debugging any issues, optimizing the performance of the app, collaborating with cross-functional teams and staying current with the latest advancements in React Native and mobile app development. We are looking for exceptional candidates who have an in-depth understanding of React, JavaScript and TypeScript, can create pixel-perfect UI and are obsessed with creating the best experiences for end users.

Your responsibilities include:

1. Architect and build performant mobile applications on both iOS and Android platforms using React Native.
2. Work with squad leaders and other managers to provide technical consultation and assist in defining the scope and sizing of work.
3. Maintain compliance with standards such as ISO 27001, ISO 13485, and Cyber Essentials that Avegen adheres to.
4. Lead configuration of our platform HealthMachine™ in line with functional specifications and development of platform modules with a focus on quality and performance.
5. Write well-documented, clean Javascript/TypeScript code to build reusable components in the platform.
6. Maintain code, write automated tests and assist DevOps in CI/CD to ensure the product is of the highest quality.
7. Lead by example in best practices for software design and quality. You will stay current with tools and technologies to seek out the best needed for the job.
8. Train team members on software design principles and emerging technologies by taking regular engineering workshops.

Requirements

1. Hands-on experience working in a product company developing consumer-facing mobile apps that are deployed and currently in use in production. He/she must have at least 3 mobile apps live in Apple App Store/Google Play Store.
2. Proven ability to mentor junior engineers to realize a delivery goal.
3. Solid attention to detail, problem-solving and analytical skills & excellent troubleshooting skills.
4. 4+ years’ experience working as a mobile developer in React Native.
5. In-depth understanding of React and its ecosystem with the latest features.
6. Experience in writing modular, reusable custom JavaScript/TypeScript modules that scale well for high-volume applications.
7. Strong familiarity with native development tools such as Xcode and Android Studio.
8. A positive, “can do” attitude who isn’t afraid to lead the complex React Native implementations.
9. Experience in building mobile apps with intensive server communication (REST APIs, GraphQL, WebSockets etc.).
10. Self-starter, able to work in a fast-paced, deadline-driven environment with multiple priorities.
11. Excellent command of version control systems like Git.
12. Working in Agile/SCRUM methodology, understanding of the application life cycle and experience working on project management tools like Atlassian JIRA.
13. Good command of the Unix operating system and understanding of cloud computing platforms like AWS, GCP, Azure etc.
14. Hands-on experience in database technologies including RDBMS and NoSQL and a firm grasp of data models and ER diagrams.
15. Open source contributions and experience developing your own React Native wrappers for native functionality a plus.

SellerGeni is an early-stage VC Funded SAAS Product in the Ecommerce Growth space. Our products GrowZ and SmartPlug enable sellers on Amazon to grow their sales and improve the quality of their listings through automated tools. Our vision is to simplify Growth across all ecommerce channels. We make traffic generation as simple as launching a Shopify website. You will be working closely with key stakeholders across the organization and leading a team of motivated engineers and professionals trying to change the status quo in online business growth. Join us if you love solving real-world problems with technically robust solutions.

Open to SDE-2, SDE-3, FSE & SWE.

What you will be doing

• Write test-driven code for Client and Server side application
• Creating functional codes that implement product requirements
• Participating in the design and creation of scalable software
• Testing and fixing bugs and/or other coding issues
• Take ownership of code, tasks and system architecture
• Brainstorming to scale the system for millions of users
• Mentoring juniors and champion the Agile Development Practices

What you need to have

• Knowledge of Javascript back-end languages & frameworks (e.g NodeJS, ExpressJS, GraphQL, TypeScript etc)
• Knowledge of Javascript front-end frameworks (e.g.NextJS, ReactJS, Angular etc)
• Experience in SQL/NoSQL databases (e.g. MongoDB, MySQL, DynamoDB, etc)
• Experience in building and maintaining large-scale production (e.g Redis, Jobs, Queue, Async sockets, etc)
• Knowledge of modern javascript libraries (e.g JWT, Webpack, Browserify, jQuery, Bootstrap, Semantic etc)
• Decent understanding of networking technologies (e.g TCP, HTTP, websockets, server-sent events, etc)
• Excellent communication and teamwork skills
• Good understanding of System design, architecture and Web Security
• Knowledge of version control software like Git, Github, BitBucket

Nice to have

• GSoC (or) Open Source contributions
• Prior startup (or) SAAS product experience
• Experience with building B2B products
• Amazon SP-API, MWS and advertising API
• Consumer Web Development Experience for High-Traffic, queue based applications
• Software security and SDLC
• UI/UX Product design & decision
• Experience in development workflow integrations (e.g CI/CD, Docker, Kube, pods, etc)
• Experience in building REST APIs, server-side architecture
• Decent understanding of Cloud & DevSecOps (e.g ECS ELB, SSM, SQS, Lambda, Kafka etc)

Benefits

• Competitive Salary & Equity
• MacBook Pro
• Flexible Work Timings
• Work With Experienced Team (Ex Amazon, Paytm, Oracle & GSoCers)

Total Experience : 2-6 years Relevant Experience: 2-3+ years

Full Stack Engineer

Front End Technology:

• Minimum 2+ years’ experience in working web development technologies

• Experience writing modular/reusable code and using modern JS frameworks / libraries like

React or other comparable frameworks or toolkits

• Strong expertise with HTML5, CSS, and writing cross-browser compatible code.

. Experience with Responsive Frameworks like Bootstrap / Flex.

• Strong knowledge of Object-Oriented Design concepts.

Back end Technology:

• Have extensive experience in designing a backend stack of the product

• Strong understanding of Data Structures / Algorithms.

• Minimum of 2+ years of experience in Writing Backend Microservices in Node

JS/Python

• Ability to build the product from scratch & drive it to completion

Responsibilities and Duties:

• Design and build a next-generation product that drives the business and meets the functional

needs of our customers and partners.

• Designing overall architecture of the web/ mobile application

• Maintain quality and ensure responsiveness of applications

• Optimize web applications to maximize speed and scale. Support diverse clients from high

powered desktop computers to small footprint mobile devices.

• Write client-side/backend code for web-based applications, create fast, easy-to-use, high

volume production applications, and develop prototypes quickly.

• Build reusable code and libraries for future use

• Develop application code and unit test (Karma, Mocha, Chai).

• Ensuring high performance and security of web apps developed.

Employment Type

Full-time

Job Functions:

• Engineering

• Information Technology

Skills

• Object-Oriented Programming (OOP)

• JavaScript

• Data Structures

• Front-end Development

• Algorithms

• React js
• Express js

• Swagger

• Github

Qualifications

• Experience in building scalable systems.

• Exposure in building and using reusable code and libraries.

• Candidates should proactively keep their knowledge and skills up to date.

• Candidates should be able to work in a fast-paced environment independently and as part of a team.

• Candidates should be able to work in a highly collaborative environment with excellent communication skills.

Other Skills:

• Excellent written and verbal communication skills.

• Ability to work in a dynamic, fast-moving, and growing environment.

• Critical thinker and problem-solving skills. Should be able to strategize immediately.

• Strong knowledge of web application architectures, trends, and emerging technologies.

We are an IT Services and Product Development company, headquartered in Bangalore, that develops ERPs, Mobile Apps, and Web-Apps for our clients and customers globally.

Our Engineering team is looking for a Sr. Full-Stack Engineer to join our base in Bangalore, KA. Your key role will be to lead architectural level discussions, define performance upgrades, undertake new initiatives to groom our engineering team and provide valuable insights on all levels. If you are a problem solver with a unique way of thinking from a technology POV, and a great team player, we have the right role for you.

A high level overview of what this role looks like:

Engineering – 50% of time: As a leader, you will be undertaking engineering tasks which are complex in nature and also work on big modules and define the architectural layouts, both on Application, API and Database level.

Problem Solver - 30% of time: Be a Problem Solver, help our Engineering team to come up with a new solution that makes our applications - scalable, high in performance, reliable, and secure. This includes having ability to drive engagement on Engineering and also from DevOps Point of View.

Training & Improvements – 20% of time: Groom our Engineering Team, provide training, valuable insights and knowledge transfers (KT)  based on your years of experience building apps, products and delivering projects and working with different clients and teams.

What you bring to the table:

• Experience in independently managing, End-to-End Implementation, Design and Development of IT Projects and Products (Apps and Web-Apps)
• Experience converting Business Cases to Technology case and Building Products from scratch
• Experience in Training team and grooming them, undertaking managerial tasks such as Quarterly Skills Meeting, and Profile Evaluation, GAP Analysis
• Experience in Providing inputs to Project Budgeting, Efforts Estimations (EE), Technology Decks,
• Experience in Writing Test Cases and Managing UAT and Deployment Cycle (Automation Testing)
• Working with Client to understand provide Consulting or Business Solutions, Problem Solving Approach and Skills, Strong Analytical Skills, should be able to read between the lines
• Interacting with the Technical/Engineering team to ensure Delivery and Implementation of the Software Solution/Projects
• Client Relationship Management, Excellent at English Speaking, and Written Communication
• Understanding of Change Management, Risk Management and Project Management
• Experience working with US Clients is a Must
• Experience and Exposure working with different projects and business models will be an advantage
• Understanding of Blockchain, Healthcare, HIPAA Compliances, RPA, Payments Services, DevOps will be an asset

Must have skills:

• Excellent Written and Oral Communication Skills and Etiquettes
• Excellent Presentation Skills
• Experience in working with Onshore and Offshore Teams and Experience handling Cross-Functional Projects, Resources and Clients and ability to provide inputs to improving ODCs (Off-shore development centres)
• Experience dealing with Pressure and Meeting strict Project Deadlines
• Leadership and Motivational Skills to ensure the Work is being done by the Resources on time and within the specified budget
• Experience in handling Conflict and Resolution Management

Qualifications:

• 8 -12 years of overall experience
• Experience of working on Mobile & Web Applications (across Android & iOS)
• Strong understanding of Java & MERN/ MEAN stack - Angular/Node/React/ Vue
• Ability to create APIs in REST, and GraphQL understanding of JSON, XML, Websockets, SOAP, COBRA
• Good to have experience of Office 365 - SharePoint and ASP.Net
• Understanding of Database: MySQL, MongoDB, Oracle, PostGres
• Understanding of Project Management: Agile/Scrum, Waterfall both is fine
• Previous experience of working in FinTech, eCommerce, Enterprise Projects, C2C, B2C, B2B Apps will be an added advantage