
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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Position Summary: Senior Software Engineer (Full Stack) We are seeking a highly skilled Senior Software Engineer to execute our strategy preferably experienced in Financial Services/Procurement domain, to build a modern SaaS platform using latest technologies like ReactJS, Angular, Django, Python with Postgres and AWS as the platform. Athena, Lambda, Python, Spark and PowerBI. As a Full Stack Engineer, you’ll be responsible for designing, developing, and maintaining key features of our cloud-based SaaS product. You’ll work across the stack — from building rich client-side applications in ReactJS to crafting performant and secure APIs in Django. You will also play a key role in architectural decisions, DevOps integration, and driving engineering best practices across the team.
Technical Skills: Must Have: Expert – ReactJS, Django, Python, Shell Script, AWS, S3, Lambda, Postgres Significant work Experience – Jenkins, Power BI
Responsibilities:
• Design and develop end-to-end web applications using ReactJS (frontend) and Python/Django (backend)
• Build and maintain RESTful APIs and integrate third-party services
• Work with PostgreSQL to model data and write efficient queries
• Implement scalable, secure, and maintainable backend services on AWS
• Collaborate with product managers, designers, and fellow engineers to deliver new features
• Write unit, integration, and end-to-end tests to ensure code quality and reliability
• Conduct code reviews, debug issues, and optimize performance across the stack
• Contribute to DevOps workflows including CI/CD pipelines, containerization, and monitoring Internal Use Only Qualifications/Experience:
Must have - 5–7 years of full stack development experience, preferably in a SaaS or product-first environment
- Strong proficiency with JavaScript, ReactJS, and component-based architecture
- Hands-on experience with Python and the Django web framework
- Solid understanding of PostgreSQL (or similar relational databases)
- Practical knowledge of AWS services (EC2, S3, RDS, Lambda, etc.)
- Familiarity with Git, CI/CD pipelines, Docker, and Linux-based environments
- Clear communication skills and a collaborative mindset
Good to have
- Experience with performance tuning in Django or PostgreSQL - Exposure to Infrastructure-as-Code (e.g., Terraform, CloudFormation) Nice to have
- Understanding of frontend testing tools (Jest, Cypress) and backend testing strategies - Knowledge of security best practices for SaaS apps
Location: Bangalore
Job Description for Technical Lead role at Inncircles Pvt ltd.
Job Title: Technical Lead - MEAN/MERN Stack
Location:Hyderabad (Work from office)
Employment Type: Full-Time
Experience Required: 6–9 Years
About Us
We are a dynamic construction-tech company building cutting-edge CRM solutions that manage millions of records, empowering stakeholders with data-driven insights. Our product is evolving into a microservices architecture to enhance scalability and performance. Join us to lead technical innovation and drive impactful solutions in the construction domain.
Job Description
We seek a Technical Lead with deep expertise in MEAN/MERN stacks to lead a team of 10 developers, ensuring timely delivery of scalable, high-performance applications. You will architect solutions, optimize databases, manage sprint workflows, and guide the transition to microservices. Your role will balance hands-on coding, team mentorship, and strategic planning to align with business goals.
Key Responsibilities:
Team Leadership & Delivery
Lead a team of 10 developers, ensuring adherence to timelines and resource efficiency.
Drive sprint planning, task allocation, and daily standups to meet project milestones.
Conduct code reviews and enforce best practices for maintainable, scalable code.
Technical Expertise
Design and develop CRM applications using MongoDB, Node.js, Angular, and React, handling millions of records with optimized queries and indexing.
Plan and execute upgrades for Angular, Node.js, and MongoDB to ensure security and performance.
Architect microservices-based solutions and modularize monolithic systems.
Scalability & Performance
Optimize database performance (MongoDB), APIs (Node.js), and frontend rendering (Angular/React).
Implement caching, load balancing, and horizontal/vertical scaling strategies.
DevOps & Cloud
Build CI/CD pipelines for automated testing and deployment.
Leverage AWS services (Lambda, SQS, S3, EC2) for serverless architectures and scalable infrastructure and related services in cloud space like GCP etc.
Problem-Solving
Debug complex issues across the stack, providing data-driven solutions.
Anticipate risks (e.g., bottlenecks, downtime) and implement preventive measures.
Mandatory Requirements
- 6–9 years of hands-on experience in MEAN/MERN stacks, including:
- MongoDB: Schema design, aggregation pipelines, sharding, replication.
- Node.js: REST/GraphQL APIs, middleware, asynchronous processing.
- Angular/React: State management, component lifecycle, performance tuning.
- Proven expertise in Agile sprint management, resource tracking, and deadline-driven delivery.
- Experience upgrading Angular, Node.js, and MongoDB in production environments.
- Leadership skills with a track record of managing teams (8–10 members).
- Strong grasp of microservices, event-driven architecture, and scalability patterns.
- Analytical thinker with excellent debugging and problem-solving abilities.
Preferred Skills
DevOps: CI/CD pipelines (Jenkins/GitLab), Docker, Kubernetes.
AWS: Lambda, SQS, S3, EC2, CloudFormation.
Monitoring: New Relic, Prometheus, Grafana.
Why Join Us?
Solve complex challenges in a niche domain with real-world impact.
Lead the modernization of a high-traffic product transitioning to microservices.
Competitive compensation and opportunities for career growth.
Apply Now:
If you thrive in fast-paced environments and want to architect scalable solutions for millions of users, submit your resume and a case study of a project where you optimized performance or led a critical upgrade.
Inncircles – The Inngineering company. 🚀
YouShd is a venture-backed (two global mega VC funds) social commerce enabler that is helping DTC brands succeed by harnessing the power of consumer networks. Our mission is to decentralize marketing away from low-trust channels such as FB, Google, and large influencers toward the high-trust social networks of everyday consumers.
Founding Engineer:
As a Founding Engineer, you'll be responsible for designing, building, and launching our product to customers. Specifically,
- Since our team is lean and we plan to keep it that way - you’ll be one of the first five engineers in leading the zero-to-one journey of a product our customers are hungry for
- Lead technical design and implementation of the frontend and backend of the product with coaching and mentorship from world-class technical architects
- Have knowledge of (or learn) how to work with Shopify’s CLI
- Iterate quickly to create delightful user experiences, working closely with customers/ design partners
- Help us hire a world-class engineering team in the months ahead
- Our team is currently fully remote (with offices to be opened in Bangalore and Mumbai over next few months) and cross-border across San Francisco, Boston, and India - help us cultivate a remote-first, inclusive, diverse, and friendly culture
- Work directly with the founders with an ownership mindset
Skills and Experience:
- Prior experience working with backend tech stacks (e.g. Spring Boot, Ruby on Rails, Django, Laravel)
- Experience with service service-oriented architecture, writing REST APIs, unit testing, and architectural design
- Understanding of modern web stacks and architecture (HTTP, REST, GraphQL, WebSockets)
- Experience with SQL and NoSQL databases and other technologies (e.g. Mysql, Redis, Kafka)
- Prior experience working with frontend tech stacks (e.g. React, Angular, Vue.js)
- Prior experience working with frontend UI frameworks (e.g. Bootstrap, Tailwind CSS)
Roles and Responsibilities:
· Design and implement scalable web applications and platforms using technologies such as Typescript, NestJS, Angular, NodeJS, ExpressJS, TypeORM, and Postgres
· Good understanding of web and REST API design patterns
· Experience with AWS technologies such as EKS, ECS, ECR, Fargate, EC2, Lambda, ALB will be an added advantage
· Hands-on experience with unit test frameworks like Jest
· Good working knowledge of JIRA, Confluence, Git
· Basic knowledge of Kubernetes and Terraform for infrastructure as code
· Basic knowledge of Docker compose and Docker
· Strong understanding of microservices architecture and ability to implement components independently
· Proven track record of problem-solving skills
· Excellent communication skills
Full Stack Engineer Role
🏘 Why Propacity?
In a country like India where every Indian aspires to have a home which provides both emotional & financial stability. Typically, real estate brokers are responsible for closing transaction for buyers, and sellers. In fact, the data suggests > 90% transactions occur via 1.5 million real estate brokers.
Unfortunately, real estate brokers are having a painful time managing their business on their own. This is leading to awful customer experience for buyers, and sellers.
Propacity is creating a platform which empowers real estate brokers to create trustworthy experience for Indians customers looking to invest their life savings.
🏚 What does Propacity Platform do?
- Solve for lead generation, lead management, market insights, growth opportunities, and more
- The platform makes the broker more efficient, more data informed, increases his income, and enables him to engage better with customer.
💛 Team Propacity
Started in 2020, we are of one of India's fastest-growing PropTech startup. We are a team of startup heroes, technology enthusiasts, product makers and business operators who want to create trustworthy real estate experience for Indians investing their lifesavings in the real estate.
Currently, working with over 200+ real estate brokers in 20+ Indian Cities.
Our team is super passionate, customer obsessed and extremely supportive of each other.
🚀 Why join us?
As a Full Stack Founding Engineer, you will be responsible for the technical implementation of Propacity Platform with other A+ Engineers
We are redefining the real estate industry. It will be hard and there are a ton of challenges facing us. However, with the right mindset, strategy, and the world-class team that we’re building, we know we can push the world forward, and build the biggest business imaginable.
👩🏽💻👨💻 YOUR ROLE
- Develop code for the Propacity Platform
- Collaborate with the product & design team for making decisions based on your codebase expertise
- Own the development process from the architecture stage till the product is shipped
- Promote code quality, new technologies, and architectural design within the company
- Work and develop a team of engineers who can ship fast
- Have fun collaborating with your team, and communicate as much as you can
✅ Should Have Expertise:
- Experience: You have 3+ years of professional product development experience with MERN Stack : building server applications in Node.js along with JS Frameworks, system design.
- Server expertise: Good experience with deploying applications on AWS & devops
- Databases: You have in-depth knowledge of RDMS as well as no-sql databases and are capable of designing scalable database models based on the product and security requirements. You have also experience with in-memory databases such as Redis and queuing frameworks for running tasks asynchronously.
- Front end expertise: Good understanding of React.js, frameworks, and libraries
- CS Fundamentals: You possess strong computer science fundamentals: data structures, algorithms, API’s, micro-services, distributed systems, and information retrieval.
- 3rd Party API integrations: API Integrations for fb, Instagram, google ads & more into our product
- Github: You have some JS projects/products on GitHub Repository that are worthy of public view.
- Product focused: You take pride in building innovative and shipping fast
- Problem solver: You excel at understanding and solving complex problems. You have great attention to detail.
- Quality communicator: You can break down tricky topics in writing and work with the team together
- Feedback: You are humble, kind, and are open to product feedback
- Location: Remote/New Delhi
✅ Good to Have:
- Automated Tests: Automated Tests to test the Restful API’s
- Design Basics: Basic understanding of the Figma Tool
- Mobile Applications: Basic Understanding of app. development via React Native
🤙 OUR HIRING PROCESS
Yes, we make sure every candidate who joins Propacity brings in the right DNA, has growth mindset, maximises peer-to-peer learning, ownership oriented and enjoys building tech products.
Step 1: You apply for the job at Propacity
Step 2: Short Intro Call with the Founder(s)
Step 3: Technical Interview Round(s)
Step 4: Evaluation of your Technical Expertise
Step 5: Founder Round for DNA Check
Step 6: Job offer rollout
Step 7: Join the Team Propacity & start building
🎁 PROPACITY BENEFITS
🕰 Generous Office Timings
- Flexible working hours
- Flexible Leave Policy
✍️ Investing in Your Growth
- Mentoring by top industry talent
- Working Directly with the Founders
- Shared Learning with Super Smart Team Members
- Ownership to build products and teams
💰 Financial Success
- Company ESOPS
- Expected CTC : 18 - 25 Lakhs per annum
- 2+ years of experience participating in the delivery of technology services.
- A proven ability to learn new applications & innovate in technology
- Strong Experience in technologies like Node, Webservices and Microservices
- Experience with cloud components and services and containerization technologies is desirable
- Exposure to ReactJS mandatory
- Experience working with multiple types of datastores: Mongo DB, SQL
- Experience in integrating, designing and developing solutions is desirable
- Experience with CI/CD and TDD is desirable
- Frameworks - Express , Hapi , feathers
- Strong knowledge in Javascript
SENIOR & LEAD DJANGO DEVELOPER
https://www.google.com/url?q=http://www.modistabox.com/&sa=D&source=calendar&ust=1608538068877000&usg=AOvVaw3-pg78MftxTqbzNdjFd09j" target="_blank">Modista: The Social, Fashion Shopping and Styling App.
Modista is an Artificial Intelligence driven fashion tech start-up from Saudi Arabia and United Arab Emirates. Our Social Looks platform brings Fashion Influencers, Personal Stylists and Customers to the same platform.
We handpick items for each client, to help them look and feel their best. Over time, our AI algorithm learns from each client's preferences, likes, and dislikes, making it the only shopping experience that can know women's tastes even better than her friends.
Backed by the Investment Group from Saudi Arabia, the business aims to be MENA’s favorite destination for personalized fashion. A unique business model to inspire and change the way people find the right fashion they love, by combining technology with the art of personal styling.
What are we looking for?
We are looking for a high-performing Lead Developer to build our Ecommerce platform and API framework powered by Machine Learning and Artificial Intelligence. Candidates for this role will be passionate about well written code, testing, and excel at coming up with simple approaches to complex problems.
Our work culture is #overachiever, very amiable, and at the same time always charged with excitement. We encourage our team members to take responsibility and grow into future leaders in the industry.
Job Responsibilities:
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Understand project requirements, writing bug free clean code and ensure that the solution works per the agreed architecture, SLAs, KPIs and business model
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Integrate Django backend with third party API
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100% Hands on role
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Make architecture decisions that contribute to maintainable systems
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Adapt to rapidly evolving requirements and changing priorities and drive the team accordingly
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Responsible to drive and support Ecommerce project activities and ensure marketplace implementation, deepen customer engagement, satisfaction, and user engagement
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Reverse engineer for debugging errors in code and ensure quality control in the process.
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Continually drive products towards a meaningful balance between user needs, business objectives and technical feasibility
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Documentation and reference preparation for users by writing operating instructions including changes and revisions.
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Operate in a hyper-collaborative way and follow these guiding principles: Value common sense and simplicity over complexity, make decisions quickly and move nimbly, celebrate diverse ideas, Succeed and fail together as a team
Qualifications:
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Bachelor or Master Degree in Computer Science, Software Engineering from a reputed University
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React and/or Angular for front end
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Proficiency in MongoDB and MySql
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Technical Skills: JIRA, Gitlab, Rest API, GCP or AWS
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Integration experience with Payment gateway, shipping company and VAT, database concepts, Experience of web services
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Experience in performance profiling, tuning, and optimization, caching mechanisms with Enterprise level applicants
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Analytical, debugging, and troubleshooting skill with proven experience troubleshooting and fixing production bugs
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Experience in writing unit testing and test case automation.
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Ability to operate in Agile environment with a start-up mentality and unstructured environment, Energy, drive and passion to work, and operate in a digital world.











