Senior Lead / Software Architect ( SaaS Platform)

Responsibilities: 

• Develop and maintain high-quality, efficient, and scalable backend applications. 
• Participate in all phases of the software development lifecycle (SDLC) 
• Write clean, well-documented, and testable code adhering to best practices. 
• Collaborate with team members to ensure the successful delivery of projects. 
• Debug and troubleshoot complex technical problems. 
• Identify and implement performance optimizations. 
• Participate in code reviews 
• Hands-on experience with Springboot, Java 8 and above. 
• 5-8 years of experience developing Java applications. 
• Knowledge about at least one messaging system like Kafka, RabbitMQ etc. 
• Required React developer requirements, qualifications & skills: 
• Proficiency in React.js and its core principles 
• Strong JavaScript, HTML5, and CSS3 skills 
• Experience with popular React.js workflows (such as Redux) 
• Strong understanding of object-oriented programming (OOP) principles. 
• Experience with design patterns and best practices for Java development. 
• Proficient in unit testing frameworks (e.g., JUnit). 
• Experience with build automation tools (e.g., Maven, Gradle). 
• Experience with version control systems (e.g., Git). 
• Experience with one of these databases – Postgres, MongoDb, Cassandra 
• Knowledge on Retail or OMS is a plus. 
• Experienced in containerized deployments using Docker, Kubernetes and DevOps mindset 
• Ability to reverse engineer existing/legacy and document findings on confluence. 
• Create automated tests for unit, integration, regression, performance, and functional testing, to meet established expectations and acceptance criteria. 
• Document APIs using Lowe’s established tooling. 

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

About Gate6

At Gate6, we’re more than a tech company — we’re a team that grows together. Many of our people have been with us for over 10, even 20 years — a rare legacy in the fast-changing digital world. Why? Because we believe in challenging work, creative freedom, and building real impact through innovation.

With offices in Scottsdale, AZ and Indore, India, we craft cutting-edge digital solutions while nurturing a culture where talent thrives, ideas matter, and careers last. If you’re ready to grow with a team that’s in it for the long run — Gate6 is your place.

About the Role

We are hiring an experienced Senior Python Developer to design and build high-quality web applications and APIs. You will play a key role in system architecture & code quality. The ideal candidate has hands-on experience with backend frameworks, frontend integration, and cloud deployments.

Key Responsibilities

• Design and implement end-to-end web applications using Python (Django, Flask, or FastAPI).
• Develop and consume RESTful APIs and ensure security (JWT, OAuth2).
• Integrate with third-party services such as payment gateways or CRMs.
• Work with relational and NoSQL databases (MySQL, PostgreSQL, MongoDB).
• Optimize backend performance and database queries.

Required Skills

• Strong knowledge of Python frameworks, JavaScript (Angular), and SQL.
• Hands-on experience with API development and version control (Git).
• Understanding of Microservices architecture.
• Familiarity with AWS cloud.

Job Title: Senior Full Stack Engineer

Location: Bangalore

About threedots:

At threedots, we are committed to helping our customers navigate the complex world of secured credit financing. Our mission is to facilitate financial empowerment through innovative, secured credit solutions like Loans Against Property, Securities, FD & More. Founded by early members of Groww, we are a well funded startup with over $4M in funding from India’s top investors.

Role Overview:

The Senior Full Stack Engineer will be responsible for developing and managing our web infrastructure and leading a team of talented engineers. With a solid background in both front and back-end technologies, and a proven track record of developing scalable web applications, the ideal candidate will have a hands-on approach and a leader's mindset.

Key Responsibilities:

• Lead the design, development, and deployment of our Node and ReactJS-based applications.
• Architect scalable and maintainable web applications that can handle the needs of a rapidly growing user base.
• Ensure the technical feasibility and smooth integration of UI/UX designs.
• Optimize applications for maximum speed and scalability.
• Implement comprehensive security and data protection.
• Manage and review code contributed by the team and maintain high standards of software quality.
• Deploy applications on AWS/GCP and manage server infrastructure.
• Work collaboratively with cross-functional teams to define, design, and ship new features.
• Provide technical leadership and mentorship to other team members.
• Keep abreast with the latest technological advancements to leverage new tech and tools.

Minimum Qualifications:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
• Minimum 3 years of experience as a full-stack developer.
• Proficient in Node.js and ReactJS.
• Experience with cloud services (AWS/GCP).
• Solid understanding of web technologies, including HTML5, CSS3, JavaScript, and responsive design.
• Experience with databases, web servers, and UI/UX design.
• Strong problem-solving skills and the ability to make sound architectural decisions.
• Proven ability to lead and mentor a tech team.

Preferred Qualifications:

• Experience in fintech
• Strong knowledge of software development methodologies and best practices.
• Experience with CI/CD pipelines and automated testing.
• Familiarity with microservices architecture.
• Excellent communication and leadership skills.

What We Offer:

• The opportunity to be part of a founding team and shape the company's future.
• Competitive salary with equity options.
• A creative and collaborative work environment.
• Professional growth opportunities as the company expands.
• Additional Startup Perks

• Work with development teams and product managers to ideate software solutions
• Design client-side and server-side architecture
• Build the front-end of applications through appealing visual design
• Develop and manage well-functioning databases and applications
• Write effective APIs
• Test software to ensure responsiveness and efficiency
• Troubleshoot, debug and upgrade software
• Create security and data protection settings
• Build features and applications with a mobile responsive design
• Write technical documentation
• Work with data scientists and analysts to improve software