Software Engineer

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.

Hi,
We are hiring for the position of Technical Lead - Full Stack for one of our premium clients.

Skills: React JS, Node JS, Python, Golang, HTML, CSS, JavaScript, Angular, Typescript.

Location : Chennai

JOB DESCRIPTION :

- Strong analytical and problem-solving skills.

- Ability to work independently, learn quickly and be proactive.

- 10-14 years of hands-on experience working on Web Full Stack technologies, with at least 4-6 years of experience developing applications with/on React/NextJS, NoSQL, and REST APIs.

- Proficiency in JavaScript/TypeScript (ES6), NodeJS, HTML5, CSS3, CSS Preprocessors, Web-pack, Gulp.

- Client-side scripting and JavaScript frameworks - jQUery, ReactJS, Redux, Babel, JSX.

- Experience in designing high-performance REST APIs and associated data structures.

- Familiarity with developing microservices using containerization technologies such as docker, Kubernetes, etc.

- Working knowledge of git and using branches for development.

• Develops software solutions by studying information needs, conferring with users, studying systems flow, data usage, and work processes; investigating problem areas; and following the software development lifecycle.
• Determines operational feasibility by evaluating analysis, problem definition, requirements, solution development, and proposed solutions.
• Documents and demonstrates solutions by developing documentation, flowcharts, layouts, diagrams, charts, code comments, and clear code.
• Prepares and installs solutions by determining and designing system specifications, standards, and programming.
• Improves operations by conducting systems analysis and recommending changes in policies and procedures.
• Updates job knowledge by studying state-of-the-art development tools, programming techniques, and computing equipment, and by participating in educational opportunities, reading professional publications, maintaining personal networks, and participating in professional organizations.
• Protects operations by keeping information confidential.
• Provides information by collecting, analyzing, and summarizing development and service issues.
• Accomplishes engineering and organization mission by completing related results as needed.
• Supports and develops software engineers by providing advice, coaching, and educational opportunities.

Key Responsibilities:

- Design, develop, and maintain scalable applications using Python and TypeScript.

- Work with cutting-edge tech, building solutions using Large Language Models.

- Architect and optimise cloud infra for efficiency, security, and scalability (AWS, Azure, or GCP).

- Integrate and deploy APIs, databases, and front-end interfaces seamlessly.

- Lead code reviews to uphold coding standards and mentor junior developers.

Required Skills and Qualifications:

- 8+ years in software development with expertise in Python and TypeScript.

- Exposure to building or integrating solutions using LLMs.

- Proven ability to lead teams or projects, ensuring high quality outcomes.

- Proficiency in managing cloud environments (AWS, Azure, or GCP).

- Hands-on experience with CI/CD pipelines, containerisation and Infrastructure-as-Code.

- Strong skills in SQL/NoSQL databases and performance tuning.

- Exceptional analytical and debugging skills.

Nice to Have:

- Experience with vector databases (e.g. Weaviate or Milvus) for semantic search or embedding storage.

- Familiarity with Gen AI frameworks and tools (e.g., LangChain, LlamaIndex).

- Familiarity with frontend frameworks (Next.js or Angular).

- Active contributions to open-source projects or a strong GitHub portfolio.

What We Offer:

- Opportunity to work with the latest in Generative AI.

- Competitive salary and comprehensive benefits.

- A forward-thinking, collaborative environment.

- Flexibility in work policies to foster a healthy work-life balance.

Minimum Qualifications

• Excellent problem-solving skills and the got right attitude to work in fast paced environments
• Bachelor’s degree in computer science or equivalent practical experience
• 2 to 5 years of experience in software development using modern frontend frameworks in JavaScript/TypeScript.
• Strong understanding of data structures and algorithms.

Preferred Qualifications

• Strong in Object Oriented Programming and Design Patterns.
• You have experience of working closely with the product and design teams to deliver the product that materially impacts the business and improves the customer experience
• You follow SOLID principles and have experience with microservice architecture, have designed and implemented high performance scalable services/APIs.
• You have experience with component based architectures, PWA, Service workers, UI patterns and libraries most preferably ReactJS / NextJS
• Write client side high performant applications & develop prototypes
• Experience working with Node, NestJS / Express.
• Experience working with PostgreSQL, Redshift, Dynamo, Mongo and Cassandra databases.
• Experience working with RabbitMQ, Kafka.
• You constantly learn and adopt best practices at work, keeping in mind app performance, security, and scalability.
• You have experience working in distributed systems and built/designed systems to failover, event streaming, caching strategies
• You have experience with Docker/Kubernetes in AWS or any cloud computing platforms. And, are familiar with CI/CD processes.

Bonus if you are great communication and team collaboration skills.

Srijan is hiring for the position of Senior JavaScript Developer (React & Node)

with a remote working option.

Skills Required:

• Minimum 3-5 years of experience as a Front-end Developer

• Possess Responsive/Mobile Design Skills

• Knowledge of Cross-Browser Development

• Knowledge of JavaScript frameworks like NodeJS, ReactJS etc.

• Worked on Front End Frameworks like Bootstrap

• Worked on markup languages like HTML, HTML5

• Worked on JavaScript, CSS, and jQuery

• Excellent knowledge of browser troubleshooting and debugging practices and techniques

• Knowledge of some SEO principles

• Knowledge of graphics software such as Adobe Suite, Photoshop, etc.

• Sense of ownership and pride in your performance and its impact on the company’s success

• Critical thinker and problem-solving skills

• Team player

• Good time-management skills

• Good interpersonal and communication skills