SDE 1 / SDE 2 - FullStack JavaScript

Location : Bengaluru, India

Type : Full-time

Experience :4-7 Years

Mode :Hybrid

The Role

We're looking for a Full Stack Engineer who thrives on building high-performance applications at scale. You'll work across our entire stack—from optimizing PostgreSQL queries on 140M+ records to crafting intuitive React interfaces. This is a high-impact role where your code directly influences how sales teams discover and engage with prospects worldwide.

What You'll Do

• Build and optimize REST APIs using Django REST Framework handling millions of records
• Design and implement complex database queries, indexes, and caching strategies for PostgreSQL
• Develop responsive, high-performance front-end interfaces with Next.js and React
• Implement Redis caching layers and optimize query performance for sub-second response times
• Design and implement smart search/filter systems with complex logic
• Collaborate on data pipeline architecture for processing large datasets
• Write clean, testable code with comprehensive unit and integration tests
• Participate in code reviews, architecture discussions, and technical planning

Required Skills

• 4-7 years of professional experience in full stack development
• Strong proficiency in Python and Django/Django REST Framework
• Expert-level PostgreSQL knowledge: query optimization, indexing, EXPLAIN ANALYZE, partitioning
• Solid experience with Next.js, React, and modern JavaScript/TypeScript
• Experience with state management (Zustand, Redux, or similar)
• Working knowledge of Redis for caching and session management
• Familiarity with AWS services (RDS, EC2, S3, CloudFront)
• Understanding of RESTful API design principles and best practices
• Experience with Git, CI/CD pipelines, and agile development workflows

Nice to Have

• Experience with Elasticsearch for full-text search at scale
• Knowledge of data scraping, ETL pipelines, or data enrichment
• Experience with Celery for async task processing
• Familiarity with Tailwind CSS and modern UI/UX practices
• Previous work on B2B SaaS or data-intensive applications
• Understanding of security best practices and anti-scraping measures

Our Tech Stack

Backend

Python, Django REST Framework

Frontend

Next.js, React, Zustand, Tailwind CSS

Database

PostgreSQL 17, Redis

Infrastructure

AWS (RDS, EC2, S3, CloudFront), Docker

Tools

GitHub, pgBouncer

Why Join Us

• Work on a product processing 140M+ records—real scale, real challenges
• Direct impact on product direction and technical decisions
• Modern tech stack with room to experiment and innovate
• Collaborative team environment with a focus on growth
• Competitive compensation and flexible hybrid work model

Key Responsibilities 

• Design, develop, and deploy scalable .NET applications and microservices supporting core 

retail operations.

• Build and maintain robust integrations using Kafka, REST APIs, and middleware 

components.

• Work closely with product, POS, merchandising, warehousing, and ERP teams to translate 

business needs into reliable technical solutions.

• Optimize system performance and ensure integrations remain stable across high-volume 

retail cycles.

• Implement best practices in coding, testing, CI/CD, and cloud-native architectures.

• Troubleshoot production issues with speed and a cool head—especially when it impacts 

stores.

• Document technical designs, data flows, and integration contracts clearly.

Required Skills & Experience 

• 6–8+ years of hands-on full stack development using .NET Core / .NET 6+, C#, and 

modern frontend frameworks (React/Angular preferred).

• Strong expertise in Kafka (producers, consumers, topics, partitions, schema registry).

• Solid experience designing RESTful APIs and integrating with enterprise systems.

• Prior experience in retail technology is non-negotiable—POS, inventory, warehousing, or 

ERP exposure is essential.

• Strong knowledge of relational databases (SQL Server, PostgreSQL) and caching 

frameworks.

• Experience building scalable, distributed systems that can handle peak loads.

• Familiarity with containerization (Docker/Kubernetes) is a plus.

• Excellent problem-solving skills and the ability to work independently on a contract basis.

Nice to Have 

• Experience with message brokers beyond Kafka (e.g., RabbitMQ)

• Exposure to cloud platforms (Azure/AWS/GCP)

• Knowledge of CI/CD pipelines (Azure DevOps, GitHub Actions, Jenkins)

• Understanding of retail data models and omnichannel workflows

• Hands-on experience with PHP and frameworks like Laravel, Codeigniter.
• Thorough understanding of React and its core principles.
• Good with JQUERY.
• Database design for scalable and secure system using NoSQL (MongoDB) or RDBMS (MySQL or
• PostgreSQL)
• POC development with other engineers
• Writing Unit testing for a robust system

Location-Andheri East, Mumbai, Maharashtra 400072

Profile- jr .PHP Developer 

Experience- 2 years

Ctc- Upto 6 LPA

Working Days & Time- 5 DAYS A WEEK...10 TO 6

Required Skills-

• Development experience of 2+ in PHP development
• Minimum 1 yrs experience on codeigniter
• API development for Mobile apps ( Android and iOS )
• Integration of third party APIs like Google Maps / Payment gateways
• Knowledge of PHP web frameworks including CodeIgniter and Laravel
• Knowledge of front-end technologies including CSS3, JavaScript, and HTML5.
• Understanding of object-oriented PHP programming.
• Previous experience creating scalable applications.
• Familiarity with SQL databases.

Thanks & Regards

1.Atleast 1.5 - 3 yr Experience in Mongodb

2.Overall 4-10 yrs Experience  in PHP/MERN Stack Development

3.Strong Experience in large data set

4.Strong Knowledge in anyone of PHP ( Yii2, Larvel,Codeigniter)

5.Good understanding of Code optimization.

6.Excellent in Designing & Architecture, handle AWS(Amazon Web Services) for our product in Financial domain.

7.Expert in working on core PHP,Oops,MySQL,Javascript,Ajax,HTML5,CSS3,& JQuery technologies

8.Proficient Understanding of Code Version Tools Such as Git ,Bit Bucket

9.The candidate should be well versed with problem solving skills,task breakdown  & code reviewing.

Causality Biomodels is an Indo-German life science informatics company that focuses on the development of data-based solutions in the bioinformatics sector. Specifically, we work using semantic integration & information extraction methods, knowledge & data organization, and advanced statistical & machine learning techniques in the context of life sciences.

The team Causality Biomodels is searching for a full stack developer with a strong focus on Python, capable of taking on a lead developer role.

You will be mainly focusing on the following areas:

• Implementing new features by modifying our backend system and UI according to the product backlog and discussions with the team.
• Rapid prototyping to explore new directions based on current research developments.
• Design, development and maintenance of APIs, as well as product and add-on components.
• Maintenance of code integrity and organization.

The requirements are:

• Successfully completed bachelor’s or master’s degree in computer science or in related fields such as Bioinformatics.
• At least 2 years of professional software engineering experience.
• High proficiency in Python and ability to write clean and well-documented code (must).
• Experience with cloud-based development using AWS (preferred), GCP or Azure.
• Experience with Docker and container-based deployment.
• Proficiency in JavaScript.
• Experience with at least one database system (SQL or no-SQL).
• High familiarity with Git.
• Experience with agile development practices.
• Experience with CI/CD and automated testing.
• Very strong English skills (both verbal and written).

Bonus points for:

• Knowledge about machine learning or data science.
• Experience with Python packages SpaCy, scikit-learn, flask and fastapi.
• Experience with JavaScript libraries React and Redux/Context.
• Experience with Gitlab CI/CD pipelines.
• Experience working with knowledge graph data.
• Knowledge and experience in bioinformatics methods.

• You will hold the beacon for development and user experience at a company while helping us scale from 3 million users to 50 million users
• Build performance and effective new features by participating in the overall application lifecycle
• Build modular, reusable, performant, and optimal features both in frontend and backend
• Code, debug, troubleshoot, deliver
• Help maintain and improve existing data structures while planning and implementing new model data structures for scalability
• Continuously improve stability and performance of company’s tech platform
• Be the user’s voice and help make product decisions
• Exhibits knowledge and behavior to adopt Information Security and Privacy practices at their work.

• 1 - 4 years experience as a Full-Stack Developer
• In-depth understanding of the entire web development process (design, development, and deployment)
• Proficiency with Nodejs, MongoDB, AWS.
• Proficiency with front-end languages (e.g. HTML, JavaScript, and CSS)
• Team Building & Leadership
• Want to interact with all levels of the company including senior leaders and cross-functional teams
• Love problem solving and thrive on handling multiple projects and tasks
• Foster strong professional relationships with the full organization
• Sense of ownership and pride in your performance and its impact on the company’s success

• Hands on Experience on  PHP, Laravel, MySQL, jQuery, HTML5, Linux
• Knowledge of open source platforms like Wordpress will be an added advantage.
• Experience on Angular JS or React is preferable
• Experience using and deploying on Linux.
• Experience in teams using CI / CD Pipeline -  Git, Jenkins
• Experience working in agile methodology