
Senior Full Stack dev backend for Ticketing Platform Using Claude Code
at Express Text
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.

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Role Proficiency:
Leverage expertise in a technology area (e.g. Java Microsoft technologies or Mainframe/legacy) to design system architecture.
Knowledge Examples:
- Domain/ Industry Knowledge: Basic knowledge of standard business processes within the relevant industry vertical and customer business domain
- Technology Knowledge: Demonstrates working knowledge of more than one technology area related to own area of work (e.g. Java/JEE 5+ Microsoft technologies or Mainframe/legacy) customer technology landscape multiple frameworks (Struts JSF Hibernate etc.) within one technology area and their applicability. Consider low level details such as data structures algorithms APIs and libraries and best practices for one technology stack configuration parameters for successful deployment and configuration parameters for high performance within one technology stack
- Technology Trends: Demonstrates working knowledge of technology trends related to one technology stack and awareness of technology trends related to least two technologies
- Architecture Concepts and Principles: Demonstrates working knowledge of standard architectural principles models patterns (e.g. SOA N-Tier EDA etc.) and perspective (e.g. TOGAF Zachman etc.) integration architecture including input and output components existing integration methodologies and topologies source and external system non functional requirements data architecture deployment architecture architecture governance
- Design Patterns Tools and Principles: Applies specialized knowledge of design patterns design principles practices and design tools. Knowledge of documentation of design using tolls like EA
- Software Development Process Tools & Techniques: Demonstrates thorough knowledge of end-to-end SDLC process (Agile and Traditional) SDLC methodology programming principles tools best practices (refactoring code code package etc.)
- Project Management Tools and Techniques: Demonstrates working knowledge of project management process (such as project scoping requirements management change management risk management quality assurance disaster management etc.) tools (MS Excel MPP client specific time sheets capacity planning tools etc.)
- Project Management: Demonstrates working knowledge of project governance framework RACI matrix and basic knowledge of project metrics like utilization onsite to offshore ratio span of control fresher ratio SLAs and quality metrics
- Estimation and Resource Planning: Working knowledge of estimation and resource planning techniques (e.g. TCP estimation model) company specific estimation templates
- Working knowledge of industry knowledge management tools (such as portals wiki) company and customer knowledge management tools techniques (such as workshops classroom training self-study application walkthrough and reverse KT)
- Technical Standards Documentation & Templates: Demonstrates working knowledge of various document templates and standards (such as business blueprint design documents and test specifications)
- Requirement Gathering and Analysis: Demonstrates working knowledge of requirements gathering for ( non functional) requirements analysis for functional and non functional requirement analysis tools (such as functional flow diagrams activity diagrams blueprint storyboard) techniques (business analysis process mapping etc.) and requirements management tools (e.g.MS Excel) and basic knowledge of functional requirements gathering. Specifically identify Architectural concerns and to document them as part of IT requirements including NFRs
- Solution Structuring: Demonstrates working knowledge of service offering and products
Additional Comments:
Looking for a Senior Java Architect with 12+ years of experience. Key responsibilities include:
• Excellent technical background and end to end architecture to design and implement scalable maintainable and high performing systems integrating front end technologies with back-end services.
• Collaborate with front-end teams to architect React -based user interfaces that are robust, responsive and aligned with overall technical architecture.
• Expertise in cloud-based applications on Azure, leveraging key Azure services.
• Lead the adoption of DevOps practices, including CI/CD pipelines, automation, monitoring and logging to ensure reliable and efficient deployment cycles.
• Provide technical leadership to development teams, guiding them in building solutions that adhere to best practices, industry standards and customer requirements.
• Conduct code reviews to maintain high quality code and collaborate with team to ensure code is optimized for performance, scalability and security.
• Collaborate with stakeholders to defined requirements and deliver technical solutions aligned with business goals.
• Excellent communication skills
• Mentor team members providing guidance on technical challenges and helping them grow their skill set.
• Good to have experience in GCP and retail domain.
Skills: Devops, Azure, Java
Must-Haves
Java (12+ years), React, Azure, DevOps, Cloud Architecture
Strong Java architecture and design experience.
Expertise in Azure cloud services.
Hands-on experience with React and front-end integration.
Proven track record in DevOps practices (CI/CD, automation).
Notice period - 0 to 15days only
Location: Hyderabad, Chennai, Kochi, Bangalore, Trivandrum
Excellent communication and leadership skills.
Technical Leadership: Lead, mentor, and inspire a team of engineers to deliver high-
quality software solutions. Provide technical guidance and support to team members,ensuring adherence to coding standards and best practices.
• Full Stack Development: Hands-on coding in ReactJS, Golang, or Java to contribute
directly to project deliverables. Lead by example, demonstrating best practices in coding,
design, and testing.
• Micro services and Cloud-Native Architecture: Design, implement, and maintain
microservices architecture for scalable and resilient applications. Leverage cloud-native
technologies and principles to build robust and efficient systems.
• Squad Management: Independently manage engineering squads, ensuring effective
collaboration and delivery of project goals. Foster a positive and collaborative team
culture, encouraging innovation and continuous improvement.
• Cross-Functional Collaboration: Collaborate with product managers, UX/UI designers,
and other stakeholders to define project requirements and priorities. Ensure alignment
between technical solutions and business objectives.
• Technology Stack Expertise: Stay updated on industry trends and emerging
technologies. Evaluate and introduce new technologies/tools to enhance the
development process.
A niche, specialist position in an interdisciplinary team focused on end-to-end solutions. Nature of projects range from proof-of-concept innovative applications, parallel implementations per end user requests, scaling up and continuous monitoring for improvements. Majority of the projects will be focused on providing automation solutions via both custom solutions and adapting machine learning generic standards to specific use cases/domains.
Clientele includes major publishers from the US and Europe, pharmaceutical bigwigs and government funded projects.
As a Senior Fullstack Developer, you will be responsible for designing, building, and maintaining scalable and performant web applications using modern technologies. You will work with cutting-edge tools and cloud infrastructure (primarily Google Cloud) and implement robust back-end services with React JS with Typescript, Koa.js, MongoDB, and Redis, while ensuring reliable and efficient monitoring with OpenTelemetry and logging with Bunyan. Your expertise in CI/CD pipelines and modern testing frameworks will be key to maintaining a smooth and efficient software development lifecycle.
Key Responsibilities:
- Fullstack Development: Design, develop, and maintain web applications using JavaScript (Node.js for back-end and React.js with Typescript for front-end).
- Cloud Infrastructure: Leverage Google Cloud services (like Compute Engine, Cloud Storage, Pub/Sub, etc.) to build scalable and resilient cloud solutions.
- API Development: Implement RESTful APIs and microservices with Koa.js, ensuring high performance, security, and scalability.
- Database Management: Manage MongoDB databases for storing and retrieving application data, and use Redis for caching and session management.
- Logging and Monitoring: Utilize Bunyan for structured logging and OpenTelemetry for distributed tracing and monitoring to ensure system health and performance.
- CI/CD: Design, implement, and maintain efficient CI/CD pipelines for continuous integration and deployment, ensuring fast and reliable code delivery.
- Testing & Quality Assurance: Write unit and integration tests using Jest, Mocha, and React Testing Library to ensure code reliability and maintainability.
- Collaboration: Work closely with front-end and back-end engineers to deliver high-quality software solutions, following agile development practices.
- Optimization & Scaling: Identify performance bottlenecks, troubleshoot production issues, and scale the system as needed.
- Code Reviews & Mentorship: Conduct peer code reviews, share best practices, and mentor junior developers to improve team efficiency and code quality.
Must-Have Skills:
- Google Cloud (GCP): Hands-on experience with various Google Cloud services (Compute Engine, Cloud Storage, Pub/Sub, Firestore, etc.) for building scalable applications.
- React.js: Strong experience in building modern, responsive user interfaces with React.js and Typescript
- Koa.js: Strong experience in building web servers and APIs with Koa.js.
- MongoDB & Redis: Proficiency in working with MongoDB (NoSQL databases) and Redis for caching and session management.
- Bunyan: Experience using Bunyan for structured logging and tracking application events.
- OpenTelemetry Ecosystem: Hands-on experience with the OpenTelemetry ecosystem for monitoring and distributed tracing.
- CI/CD: Proficient in setting up CI/CD pipelines using tools like CircleCI, Jenkins, or GitLab CI.
- Testing Frameworks: Solid understanding and experience with Jest, Mocha, and React Testing Library for testing both back-end and front-end applications.
- JavaScript & Node.js: Strong proficiency in JavaScript (ES6+), and experience working with Node.js for back-end services.
Desired Skills & Experience:
- Experience with other cloud platforms (AWS, Azure).
- Familiarity with containerization and orchestration tools like Docker and Kubernetes.
- Experience working with TypeScript.
- Knowledge of other logging and monitoring tools.
- Familiarity with agile methodologies and project management tools (JIRA, Trello, etc.).
Qualifications:
- Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
- 5-10 years of hands-on experience as a Fullstack Developer.
- Strong problem-solving skills and ability to debug complex systems.
- Excellent communication skills and ability to work in a team-oriented, collaborative environment.
Who are we?
Kriyadocs is a leading document workflow platform focused on the publishing industry. At Kriyadocs®, we have partnered with prestigious publishing houses across the world for over 18 years and delivered world-class, publication-ready digital & print content by applying cutting-edge technology, streamlined processes, and extensive domain expertise. Technology is at the core of our evolution – we’ve consciously striven to always stay ahead of the curve in its adoption in order to provide best-in-class capabilities for our clients and our employees. This ethos is reflected in our vision and mission.
Our Vision: To make publishing all content as simple as clicking a button and become the partner of choice for individuals and organizations looking to share knowledge.
Our Mission: Provide a fantastic experience to authors, content publishers, and our own employees through technology and innovation, by publishing high-quality content seamlessly and quickly. We deliver Happy Authors and Happy Employees.
What is it really like to work here?
At Kriyadocs, every Kriyator is driven by our culture at the core to
- Deliver Excellence - Deliver Delight
- Stay Curious - Stay Driven
- Dream Big - Rise Together
You could also be a Kriyator, if you are
- Fearless in taking on challenges
- Focused in learning, demonstrating new skills and working towards successful outcomes
- Fanatical in taking pride and responsibility in all your work
Job Description
We are looking for a Software engineer to join our cutting-edge development team as it grows. We want someone who is comfortable asking “why?” The ideal candidate is a divergent thinker who understands industry best practices and has experience with multiple coding languages. They are a team player possessing strong analytical as well as technical skills, and are able to communicate the logic behind technical decisions to non-tech stakeholders. They must be comfortable working in an agile environment and have the ability to “take the wheel” when necessary. They will work with multiple technologies and develop a keen sense of evaluating and using the appropriate technology to derive the best solution.
What you will do?
- Participate in the entire application lifecycle, focusing on coding and debugging
- Write and test code to ensure compatibility and stability: refine and rewrite as necessary
- Troubleshoot and debug applications
- Collaborate with Front-end developers to integrate user-facing elements with server side logic
- Follow the spec and its requirement and develop the features/project
- Providing written knowledge transfer material as documents
Requirements
Must have
- 1+ years experience coding in nodejs programming language
- Solid understanding of data structures and algorithms, Collections, good design principles like SOLID
- Problem solving & analytical aptitude
- Excellent verbal and written communication skills
- Experience in source code control with GIT/SVN
- Should be flexible to work on a variety of programming languages like NodeJS, React, etc. and on XML technologies like XSLT, XML Pipelines, etc
Good to have
- Experience working in the Node JS stack
- Unit testing and automation frameworks
- Experience working in a public cloud environment (AWS preferred)
- Working with distributed microservice architectures
- Agile product development life cycle
Eligibility Criteria
- Bachelor's or Master's degree in Computer science or related fields from a reputed institution
- Any internship experience is a plus
- Experience : 1-4 years
- Location : Chennai. Work from office (Mon to Fri)
We have divided this into the following two sections
#1 Working on features as a backend or front-end engineer (roughly 50% of the time)
Some of the responsibilities here will be:
- Depending on your skills you will be contributing to the codebase as a front-end or
backend developer
- You will be responsible to understand specifications created by the business division,
clarify on it, design and develop according to the specifications using ruby on rails or
react JS.
- Review code of other engineers
- Deploy and maintain production applications
- Work on fixing bugs
- Work on fixing technical debt
#2 Assistance in Development management
- communication with stakeholders (Development unit, Business Unit)
- Help in managing timeline, resource allocation, development plan, participate in
weekly product meetings along with the VP of Engineering
- Help to convert and discuss business specifications with engineers in English
- Communicate task progress to the business division promptly
- Work closely with the VP of Engineering on getting a strategy map created and
execution of the same
- Help in the hiring process
- Help in QA and release management
Our technology stack is:
● React for client applications
● Ruby on Rails as a Back End API
● PostgreSQL database
● Elasticsearch
● Amazon Web Services
● Stripe for payment handling
● Github for version control
● Slack for communication
● Figma for design
● Confluence and JIRA
Requirements
● At least 3 years of industry experience in software development
● At least 2 years of experience in working on Ruby on Rails projects or React
JS
● Strong communication skills in both English and Japanese
Our growing software technology business is looking for a Mid Level Full Stack Developer to join our Development Team. We're looking for a talented, team-oriented, highly motivated, smart individual with a passion for software engineering, a strong desire to learn and an interest in providing mentorship to peers. We desire self-starting developers with strong experience developing sophisticated web applications leveraging the latest technologies. The successful candidate for this role must be an outstanding problem-solver with great database and software architectural skills.
KEY REQUIRED SKILLS
- Node.js
- GIT
- MySQL
POSITION DESCRIPTION
We have an immediate need for a highly motivated Mid Level Node Software Developer to provide software development expertise and hands on implementation using the latest open source server-side JavaScript technologies on the Node platform and other related open source products.
REQUIRED
- Strong software development experience with Node.js in addition to detailed understanding of user interface frameworks, back-end software architecture interactions and node module capabilities.
- One or more years' experience with one or more JavaScript frameworks/technologies such as Express.js, Angular.js, React.js, MobX or Flux.js.
- Strong development experience using Node.js.
- Strong communication and collaborative skills
- Portfolio of application(s)
DESIRED SKILLS
- Experience with HTML5, CSS3.
- Experience with source code versioning and Pull Requests with Git repositories.
- Standards & Protocols knowledge including JSON.
- Complex programming, program debugging, automated program testing, data analysis, problem analysis and resolution of issues within open source applications.
- Experience in other languages such as .net, including VB and C# are a plus
- Operating System and Infrastructure experience with Ubuntu Linux and Windows Server.
EDUCATION
- Bachelor’s degree from an accredited college in a related discipline, with minimum 2-3 years of relevant professional experience.
- Exact skill match may allow flexibility with education and experience requirements
- Certifications are a plus.
TechChefz (TCZ Digital Private Limited) is a digital transformation partner helping established organizations get to their future, digitally-enabled state, both in the way they work and the way they serve their customers. We help unlock value through a start-up mindset and modern methods, fusing strategy, consulting, and customer experience with agile engineering and problem-solving creativity. United by our core values and our purpose of helping people thrive in the brave pursuit of next, our people in offices around the globe combine experience across technology, data sciences, consulting, and customer obsession to accelerate our clients’ businesses through designing the products and services their customers truly value. For more details, explore our website: www.techchefz.com
Responsibilities:
Building interactive consumer data from multiple systems and Restfully abstract to the UI through a Node.js backend Define code architecture decisions to support a high-performance and scalable product with a minimal footprint Address and improve any technical issues Collaborate well with engineers, researchers, and data implementation specialists to design and create advanced, elegant, and efficient systems
Skills and Experience:
In-depth knowledge of NodeJS, ExpressJS or Restify. Experience implementing applications using Angular or React Experience creating front end applications using HTML5, Angular, LESS/SASS Hands on experience with JavaScript Development on both client and server-side Experience with modern frameworks and design patterns, minimum one-year experience with MERN Full stack paradigm Knowledge of the following will be considered as an advantage: Consumer Web Development Experience for High-Traffic, Public Facing web applications Experience with cloud technologies is also a plus Creating secure RESTful-based web services in XML and JSON, JavaScript, jQuery Continuous integration (Jenkins/Hudson) and version control (SVN, Git).
The Benefits of Working Here
Benefits of both the worlds - Enthusiasm & Learning Curve of a Start-Up, Deliveries & Performance of an Enterprise Service Provider flexible working hours with the delivery oriented approach The sky's the limit when it comes to learning, growth, and ideas. We do not follow the typical corporate hierarchy ladder. As part of our dedication to an inclusive and diverse workforce, TechChefz is committed to Equal Employment Opportunity without regard to race, colour, national origin, ethnicity, gender, protected veteran status, disability, sexual orientation, gender identity, or religion.
Key Expectations :
- In depth knowledge of React JS and Node JS
- Test Driven Development
- Developing new user-facing features using React.js
- Building reusable components and front-end libraries for future use
- Translating designs and wireframes into high quality code
- Optimizing components for maximum performance across a vast array of web-capable devices and browsers
Key Skills :
- Strong proficiency in Node, Express JS
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
- Experience with popular React.js workflows (such as Flux or Redux)
- Familiarity with newer specifications of EcmaScript
- Experience with data structure libraries (e.g., Immutable.js)
- Familiarity with RESTful APIs using Express JS
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Familiarity with modern front-end build pipelines and tools
- Ability to understand business requirements and translate them into technical requirements
- A knack for benchmarking and optimization
- Familiarity with code versioning tools Git
- Good Experience With Amazon AWS Services Lambda, S3, IAM, DynamoDB, etc.
Brief about Coursebook:
Coursebook is a SaaS platform which helps educational businesses like Coaching & Training Institutions to Create, Market and Sell video courses Online through Coursebook. We are currently incubated at IIM Bangalore where our whole Team is placed.
Product 1:
https://coursebook.in/">Coursebook.in was launched in March 2019, as a Marketplace for Courses, where training and coaching institutions could list their Courses on our platform and students could view and book the desired course of their choice. After a few months we choose not to actively develop this product due to a greater need in another Product.
Product 2: (Main Product)
https://coursebook.us/">Coursebook.us is a SaaS platform where Educational businesses like Coaching and Training institutions can manage their day to day operations like Leads, Marketing, Online Payments, Invoicing, students as well as delivering a great learning experience to their students through Video Courses and LIVE CLASSES.
In short, we help any Freelancer, Universities, Coaching and Training institution to take their complete operations online.
We have different dashboard for Institute Admin (Owner/Director), Branch Manager, Sales Manager, Mentor/Teacher and for the student making our offerings very concrete.
Technology Stack Information:
The web application would be designed & developed using open source technologies
Backend Languages
Golang and Node
Database
PostgreSQL is the choice for the database layer. PostgreSQL is industry standard for web applications and server the need for this scale of an application.
Infrastructure
Amazon EC2 for web hosting, S3 for storage, SQS for implementing queues are few of them which are to be integrated and used in the application.
Front End Elements
React
CTC: 10,00,000









