Fullstack Developer

Experienced Senior Full Stack Engineer to Build & Backend for Event Ticketing Platform Using Claude Code

Overview

We have the frontend already built in Replit for both user and admin experiences. We are looking for a very experienced software engineer to design, build, and scale a production ready backend for a high concurrency event ticketing platform.

This role is for a true senior engineer who actively uses Claude Code as part of their daily development workflow, understands how to review and harden AI assisted output, and can ship systems that hold up under real world load, QA, and security testing.

This is not a prototype or demo system. This backend must be reliable, scalable, secure, and extremely well documented.

What You Will Be Building

• Backend services for an event ticketing platform

• Multi tenant architecture supporting thousands of organizers and events

• High concurrency purchase and checkout flows

• Secure user, admin, and system level access controls

• Production deployments with secrets management, middleware, and security layers

• Observability, logging, and metrics suitable for QA and load testing

• A thoroughly documented backend that future engineers can onboard into quickly

Core Engineering Requirements

• 10 plus years of professional software engineering experience

• Expert level experience using Claude Code or equivalent AI coding agents in real production workflows

• Deep experience building backends with Node.js

• Strong experience with Supabase and PostgreSQL

• Experience deploying and scaling applications on Vercel

• Proven experience extending existing codebases safely

• Strong API design and database performance fundamentals

• Ability to reason clearly about concurrency, transactions, and failure modes

Scalability and Performance Expectations

The backend must be designed to support:

• Hundreds of thousands of ticket purchases

• Thousands of concurrent users and tenants

• Large traffic spikes during on sale windows

• Load testing across all major latency percentiles including p90, p95, and p99

• Extremely low tail latency under high concurrency

• Graceful degradation and recovery under stress

You should be comfortable designing and implementing caching strategies, queue based workflows, idempotent operations, locking mechanisms, and transactional safety.

Security and Production Readiness

You must be able to:

• Set up production environments with proper secrets management

• Implement middleware for authentication, authorization, and rate limiting

• Design secure communication between frontend and backend

• Apply industry best practices for security hardening

• Prepare the system to pass penetration testing

• Maintain clean separation of concerns and least privilege access

Documentation and Developer Experience Requirements

High quality documentation is a hard requirement for this role.

You must have experience:

• Using AI powered documentation tools to generate and maintain technical documentation

• Producing clear architectural overviews and system diagrams

• Writing detailed README files and onboarding guides

• Documenting APIs, data models, and critical flows

• Keeping documentation in sync with code changes over time

We expect the backend to be easy to understand, easy to extend, and well explained for future engineers.

How We Evaluate Candidates

We are looking for engineers who can demonstrate:

• Real production systems they have built or scaled

• Clear judgment in how they use Claude Code and validate AI generated output

• Strong opinions on production readiness backed by experience

• The ability to move fast without sacrificing quality or safety

A short paid technical task may be used that involves real backend work with production quality code and documentation.

Job Title: Senior Fullstack Engineer - Fintech

Location: Bangalore

Company: TIFIN Give

About Us:

TIFIN Give is an early growth-stage fintech company offering a modern, tech-driven Donor Advised Fund to empower charitable giving. We have a lean, hungry team building a feature-rich product and automated operations platform, through which we are servicing multiple enterprise clients. Our roadmap and deal pipeline is full to the bursting, and we’re looking for someone to join our team in this exciting stage. As we continue to scale, we’re looking for a Senior Fullstack Engineer to lead our engineering teams and drive the successful delivery of our ambitious product roadmap.

OUR VALUES: Go with your GUT

• Grow at the Edge: We strive for personal growth by stepping out of our comfort zones and finding our genius zones with self-awareness and integrity. No excuses.
• Understanding through Listening and Speaking the Truth: We value transparency, communicating with radical candor, authenticity, and precision to create shared understanding. We challenge, but once a decision is made, we commit fully.
• I Win for Teamwin: We work within our genius zones to succeed, taking full ownership of our work. We inspire each other with our energy and attitude, flying in formation to win together.

Role Overview:

Experienced Full Stack Developer with 8 years of hands-on expertise in designing, developing, and deploying web applications.

• Proficient in backend development using Python, with strong skills in frameworks such as Django and FastAPI.
• Skilled in frontend development using ReactJS, ensuring seamless user interfaces and responsive design.
• Skilled at SQL database management, with a focus on performance optimization and data integrity.
• Capable of contributing to system design and architecture discussions, ensuring scalability, reliability, and security.
• Strong communicator with a track record of collaborating effectively within cross-functional teams and delivering high-quality solutions.
• Open to transitioning into Data Engineering roles leveraging strong SQL skills and understanding of data pipelines.
• Good debugging skills.

Key Skills:

• Backend Development: Extensive experience in Python-based backend development with Django and FastAPI frameworks. Proficient in building RESTful APIs, handling authentication, authorization, and data validation.
• Frontend Development: Skilled in frontend technologies, particularly ReactJS, for creating dynamic and responsive user interfaces. Familiar with state management libraries like Redux and context API.
• Database Management: Strong command over SQL for designing schemas, writing complex queries, and optimizing database performance. Experience with ORM frameworks like Django ORM.
• System Design: Understanding of system design principles, including scalability, performance optimization, and microservices architecture. Ability to contribute to architectural decisions and technical design discussions.
• Data Engineering: Open to roles in Data Engineering, with skills in SQL, data pipelines, ETL processes, and data warehousing concepts.
• Communication: Effective communicator with experience in team collaboration, client interactions, and articulating technical concepts to non-technical stakeholders. Proven ability to work in Agile development environments.

Note: Completely IC Role and Hands-on coding is mandatory.

Additional Skills (Good to Have):

• Experience with Next.js for server-side rendering and building React applications.
• Familiarity with Snowflake / Redshift for cloud-based data warehousing and analytics.
• Knowledge of data manipulation and analysis tools such as Pandas and NumPy.
• Exposure to Salesforce platform APIs and extensions or similar CRM functionalities.

Technical Proficiency:

• Backend: Python, Django, FastAPI, Flask, RESTful APIs, GraphQL
• Frontend: JavaScript, ReactJS, Redux, HTML5, CSS3, Responsive Design
• Databases: PostgreSQL, MySQL, SQLite, MongoDB, ORM (Django ORM)
• Data Engineering: SQL, ETL Processes, Data Warehousing Concepts
• Tools & DevOps: Git, Docker, AWS (EC2, S3, RDS), CI/CD pipelines, Agile methodologies

Professional Experience:

• Developed and maintained scalable web applications using Django and FastAPI, ensuring high performance and reliability.
• Designed and implemented frontend components and user interfaces using ReactJS, enhancing user experience and interactivity.
• Optimized SQL queries and database schema design to improve application performance and data integrity.
• Collaborated with cross-functional teams in Agile environments to deliver features and meet project milestones.
• Open to transitioning into Data Engineering roles, leveraging SQL skills and understanding of data pipelines to contribute to data-driven solutions.

Compensation and Benefits Package:

• Competitive compensation with a discretionary annual bonus.
• Performance-linked variable compensation.
• Medical insurance.

Note on Location:

While we have team centers in Boulder, New York City, San Francisco, Charlotte, this role is based out of Bangalore

TIFIN is an equal-opportunity workplace, and we value diversity in our workforce. All qualified applicants will receive consideration for employment without regard to any discrimination.

We are looking for a talented Fullstack Developer with 2-5 years of experience to join our engineering team. The ideal candidate will have experience with MongoDB, Express, React, and Node. As a Fullstack Developer, you will be responsible for developing and maintaining our web-based applications and services.

Responsibilities:

• Work collaboratively with the product and engineering teams to develop high-quality web-based applications and services.
• Develop and maintain RESTful APIs using Node.js and Express.
• Design and develop the front-end user interface using React.
• Create and maintain MongoDB databases and related services.
• Develop and maintain automated test cases for both front-end and back-end applications.
• Participate in code reviews and ensure code quality.
• Stay up-to-date with emerging trends and technologies in web development and AI.

Qualifications:

• 2-5 years of experience as a Fullstack Developer with expertise in MongoDB, Express, React, and Node.
• Experience in developing RESTful APIs using Node.js and Express.
• Experience in front-end development using React.
• Experience in database development using MongoDB.
• Strong knowledge of HTML, CSS, and JavaScript.
• Strong problem-solving and analytical skills.
• Excellent communication and collaboration skills.
• Experience in automated testing using Jest, Cypress, or other similar frameworks is a plus.
• Experience in AWS or other cloud technologies is a plus.
• Knowledge of AI and machine learning concepts is a plus.

We offer a competitive salary, flexible working hours, and a collaborative work environment. If you are passionate about AI & how teams collaborate, and want to work in a fast-paced, innovative environment, then we want to hear from you.

As a Full Stack Developer, you will be working on the development of all server-side logic, definition, and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end

• Participating in the full development life cycle, including implementing design, coding, testing, and production release
• creating modules and components in React and coupling them together into a functional app
• Understanding the nature of asynchronous programming and its quirks and workaround
• Integrating multiple data sources and databases into one system
• Creating database schemas that represent and support business processes
• Driving innovation through rapid prototyping and iterative development

Desired Candidate Profile

We are seeking a Full Stack developer in Bangalore, India to join our development team. These roles represent a great opportunity for the right candidate.

Requirements:

• B. E/B. Tech/ M. Tech from a top-tier college.
• 3 to 5 years of experience in a product development environment.
• Good understanding of one or more topics such as React, Redux, JWT, and REST APIs.
• Experieence with Node and NPM (and the Node ecosystem in general).
• Comfortable working with Git/SVN and a good understanding of version control.
• Knowledge of SaaS/Microservices-based environments.
• Ability to understand business requirements/ workflows and come up with technical designs and implementations.
• Good communication skills (written as well as verbal/spoken).
• Understanding cloud environments would be a plus.