Mern Stack Developer

About the Role

We are hiring an experienced MERN Stack Developer who can independently build and scale full-stack applications from scratch. The ideal candidate must have strong skills in TypeScript, React.js, Node.js, Redux, and REST APIs, along with a solid understanding of microservices architecture, mobile API integrations, and responsive design.

Experience with LLMs, RAG architecture, Kafka, Redis, webhooks, and database systems like PostgreSQL, MySQL, and MongoDB is essential. You’ll be working on scalable systems, enterprise-grade platforms, and AI-integrated products.

Key Responsibilities

• Develop and maintain full-stack web applications using React.js (with TypeScript) and Node.js (Express/NestJS)
• Build and document robust RESTful APIs and mobile-ready endpoints
• Implement and consume webhooks for third-party integrations and internal event-based workflows
• Ensure responsive design principles across devices and screen sizes
• Integrate with mobile applications via secure and scalable APIs
• Work with databases including PostgreSQL, MySQL, and MongoDB
• Integrate Large Language Models (LLMs) and Retrieval-Augmented Generation (RAG) pipelines
• Build and deploy microservices architecture using Kafka, Redis, Docker, etc.
• Manage application state using Redux or Redux Toolkit
• Write test cases using Mocha, Chai, Jest, or similar frameworks
• Participate in system design, architecture discussions, and scalability planning
• Follow Agile practices, perform code reviews, and contribute to CI/CD pipelines
• Collaborate with cross-functional teams including UI/UX, DevOps, QA, and Product Management

Required Skills & Experience

• Minimum 4 years of hands-on experience with the MERN stack
• Strong proficiency in TypeScript, React.js, Node.js, and Redux
• Proven experience in building and consuming REST APIs and webhooks
• Deep knowledge of responsive UI/UX development
• Hands-on experience with mobile-first API design and integrations
• Strong knowledge of PostgreSQL, MySQL, and MongoDB
• Experience with Kafka, Redis, Docker, and microservices
• Exposure to LLM, GPT, RAG, or similar AI models
• Solid understanding of software architecture and ability to build systems from the ground up
• Working knowledge of API security, JWT, OAuth, and rate-limiting
• Familiar with test-driven development and QA practices
• Familiarity with Git, version control, and collaborative workflows good to Have
• Experience with GraphQL and gRPC
• Experience in building SaaS or AI-integrated platforms
• Familiarity with ElasticSearch or RabbitMQ
• Experience with AWS, GCP, or Azure
• Understanding of serverless and event-driven architectures
• 
  

Benefits

• Competitive compensation with performance-based hikes
• Flexible remote or hybrid work options
• Opportunity to work on cutting-edge technologies including AI and scalable SaaS platforms
• Strong leadership and learning-driven environment
• Learning budget for courses, certifications, and conferences

Must have skills :

6+ Years Java, Spring - 4+ years, Node JS / React JS - 4+ years

Responsibilities:

Code, test and debug programs according to specifications.

Build new and modifying existing applications.

Develop software prototypes.

Write unit tests and functional tests (automation).

Perform manual tests.

Use tools to access data in datastore, version control systems, etc.

Practice Agile methodologies.

Frequently interface with other functional teams on all aspects of a feature or sub-system 

Are you interested to work at a place where you are given the opportunity to grow and level up your skills?

Are you looking to build products that are impactful?

Do you want to work with an energetic team, like-minded and passionate programmers? 

Do you like to create impactful and scalable products?

What we Look for

• Bring in a "can-do" attitude
• Passion towards technology and software engineering - open source, pet projects, conference talks, getting better at writing clean code
• Participate in a highly fluid environment applying agile software development principles
• Carry out unit tests and other quality control mechanisms to inform and validate the designs and code
• Work with product owner/BAs  to bring an end to end perspective of the problem
• Ability to ask the right questions and communicate your ideas with clarity
• Ability to collaborate with various stakeholders and take complete ownership
• Participate actively in building one of the most impactful organizations in retail technology

As a Software Engineer …..

• Quickly adapt to our startup environment which is both demanding and fast-paced (but is also a lot of fun) 
• Eager to learn new concepts, and technologies and be productive in short time
• Convert a raw idea into usable real-life software products 
• Write modular, readable and maintainable code
• Good understanding and working knowledge of technologies worked
• Demonstrate good problem solving skills
• Own and be able to manage a small to medium sized modules
• Demonstrate ability to guide and coach a new team member or fresher

Lantern Pharma is looking for talented and highly motivated R Shiny based front end web application developers to visualize the data analyzed / reports generated using bioinformatics pipelines. Leveraging your background and applying software engineering principles, to develop applications and tools in support of data visualization and reporting using R / R Shiny. You will be involved in generating complex graphs used for statistical analysis and interpretation using interactive libraries such as Plotly. In addition to development of new code, you will support and maintain standard R programs, which will comprise a library of code to be used for future development. This is a 6 months contract position (40 hrs / week) with possibilities of full time employment based on performance.

RESPONSIBILITIES:

• Design and develop interactive web applications using R / R Shiny to visualize ML outputs, multi-omics data and reports generated by bioinformatics pipelines
• Use the open-source or proprietary R libraries to build useful applications and packages
• Write efficient, clean and well tested code that adheres to best practices
• Organize data, analysis, reports, and applications into reproducible pipelines
• Test and debug applications to ensure they are working correctly, using both manual and automated testing techniques
• Stay up-to-date with the latest R packages and developments in the pharma industry
• Publish R packages to internal company repository
• Deploy and maintain the R Shiny web-application on the AWS server

BASIC QUALIFICATIONS:

• Bachelor's degree required (Master’s degree preferred) in a scientific discipline such as Statistics, Computer Science, Bioinformatics etc.
• Minimum 2 years of R / R Shiny, R Markdown experience with standard packages for data visualization and analysis
• Proven ability of building interactive R-shiny application (demo of the R-shiny application)
• Proficient in libraries such as ggplot2, plotly, dplyr, Highcharter and DT
• Must have experience in generating and working with R markdown reports
• Experience of AWS to host R shiny application is a plus
• Knowledge of cancer biology, genomics and drug development is a plus
• Familiarity with JavaScript, HTML, CSS, Python a plus
• Experience in building a database using Relational / Non relational Database (SQL / NoSQL)
• Must be capable of developing collaborative relationships with colleagues
• Must be self-motivated and have strong analytical, interpersonal, and project management skills
• Must demonstrate the ability to present ideas, issues, and observations in a clear manner

Lantern provides multiple growth opportunities and as an early team member, your work will have a direct impact on precision oncology that can transform drug development. In addition to attractive compensation, we offer employees the opportunity for competitive health, dental & vision insurance, stock options in a public company, an opportunity to take leadership on new and meaningful projects, & involvement with leading conferences & industry trade shows.

Salary: No bar for right candidate

React JS

Node JS

Graphql

Required background:

Ideal candidate is full stack with a focus on the backend

Can work with React.JS and is comfortable with CSS

Strong Node.JS with working experience in Graphql

Worked on scaling issues and real-time distributed systems

Has experience building microservices.

Has work experience with web sockets, WebRTC and RTMP / HLS.

5.5+ years of experience after college

Ideally has past experience with Java or GoLang.

As a Software Engineer, you will build and scale Clockwork, creating an engaging experience for our users. As one of the first few engineers, you will work on 0 to 1 type projects, partnering closely with our product, design and business teams to build the future of Clockwork.

• Write, test and deploy code to enhance our product
• Design software systems for new features
• Diagnose bugs and system bottlenecks as our product scales
• Work closely with product and design to define our roadmap

• 1+ years of professional experience as a software engineer
• Bachelor’s and/or Master’s degree, preferably in CS, or equivalent experience
• Solid engineering, coding and problem solving skills
• Strong product/business sense
• Excited about working in a fast-paced, dynamic startup environment

Clockwork encourages applications from people of all races, religions, national origins, genders, sexual orientations, gender identities, gender expressions and ages, as well as veterans and individuals with disabilities.

• Previous working experience as a MERN/MEAN  Stack Developer for 1 year (Minimum).
• In depth knowledge of NodeJS, ExpressJS or Restify
• Experience implementing applications using Angular 2+ versions or React
• Experience creating front end applications using HTML5, Angular/React, LESS/SASS
• Hands on experience with JavaScript
• Development on both client and server-side
• Experience on Angular 2+  and React Js will be an plus point
• Experience on both MEAN/MERN Technologies will be an advantage.

Brewhackers Technologies is a place for creative people to develop themselves and thrive in a rapidly changing world. We are developing a service to help people consume and share ideas that matter faster and more efficiently. We deliver this through an app for iOS and Android.

To meet this end, we are looking for a senior software engineer with very strong technical and problem solving skills, someone who loves to work on hard problems and is great with building scalable solutions.

As part of the founding team, the tech lead will have various responsibilites, such as designing the app architecture, writing the first version of the app from scratch, and building and leading the core technical team. 

Following key skills are expected : 

1. Strong grasp for good product design.
2. Minimum 2 Years Experience working with Node.js, MySQL/PostgresQL.
3. Should have excellent coding skills in Javascript/ES6.
4. Strong conceptual grasp of React Native or Flutter and minimum 1 year experience in the same.
5. Strong knowledge of AWS.
6. Good product architectural sensibilities to take product from concept to implementation
7. Deep understanding of OO concepts, Database design, REST APIs, GraphQL & Service design. 
8. Knowledge of agile development and version control tools like GIT.

Now on the personality side : 

1. We are looking for an independent, responsible person. Mainly because there is no time for micro-management. We expect you to be able to carry your own weight and be a reliable partner.
2. We are looking for a fast learner. We may need to use technologies that you never used before. That should not scare, but excite you. In most cases we may not even know what we need and you may have to propose something.
3. We are looking for you to get stuff done. We work in weekly sprints because we believe in consistent delivery over big lengthy releases.
4. We want you to be proactive. We appreciate conviction way more than consensus. Words are nice, opinions are cute, but proactivity in action is golden.
5. We want you to be a partner for your colleagues in the dev team. Help or lead the planning process, code reviews, commits etc. Provide guidance and help your colleagues when they get stuck.
6. We want you to be an over-communicator. We are remote-first and it’s up to you to show your work, explain your ideas or highlight problems.