Full Stack 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.

Key Responsibilities

• Design, develop, and maintain full-stack web applications using MongoDB, Express.js, React.js, and Node.js
• Build and optimise RESTful APIs and micro services
• Work closely with product managers, designers, and developers to deliver scalable solutions
• Write clean, maintainable, and testable code
• Ensure application performance, security, and responsiveness
• Mentor junior developers and contribute to code reviews

🔹 Must-Have Skills

• Strong hands-on experience with MERN stack (MongoDB, Express, React, Node.js)
• Proficiency in JavaScript (ES6+), HTML5, CSS3
• Experience with Redux / State Management in React
• Solid backend expertise with Node.js & Express.js
• Database design, queries, and performance tuning in MongoDB
• Good understanding of REST APIs, authentication (JWT, OAuth)
• Familiarity with Git, CI/CD pipelines, and Agile methodology
• Exposure to cloud platforms (AWS, Azure, GCP) is a plus

🎯 Preferred Skills

• Experience with TypeScript
• Knowledge of GraphQL, Docker, Kubernetes
• Unit testing with Jest / Mocha
• Experience mentoring or leading small teams

🎓 Education

• Bachelor's / Master's in Computer Science, IT, or related field

• Past experience in working with any product start-up is a plus.
• Proficiency in fundamental front end languages such as HTML, CSS, and JavaScript.
• Familiarity with JavaScript frameworks such as Angular JS, React, and others.
• Knowledge of Node.js and frameworks available for it such as Express (recommended).
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Understanding of REST Services.
• Experience with Redis.
• Familiarity with database technology such as MySQL, MongoDB and Elasticsearch.
• Proficient understanding of serverless programming.
• Proficient understanding of code versioning tools, such as Git.
• Good problem-solving skills.
• Attention to detail.

CTC Budget: 35-50LPA

Location: Hyderabad/Bangalore

Experience: 8+ Years

Company Overview:

An 8-year-old IT Services and consulting company based in Hyderabad providing services in maximizing product value while delivering rapid incremental innovation, possessing extensive SaaS company M&A experience including 20+ closed transactions on both the buy and sell sides. They have over 100 employees and looking to grow the team.

Work with, learn from, and contribute to a diverse, collaborative

development team

● Use plenty of PHP, Go, JavaScript, MySQL, PostgreSQL, ElasticSearch,

Redshift, AWS Services and other technologies

● Build efficient and reusable abstractions and systems

● Create robust cloud-based systems used by students globally at scale

● Experiment with cutting edge technologies and contribute to the

company’s product roadmap

● Deliver data at scale to bring value to clients Requirements

You will need:

● Experience working with a server side language in a full-stack environment

● Experience with various database technologies (relational, nosql,

document-oriented, etc) and query concepts in high performance

environments

● Experience in one of these areas: React, Backbone

● Understanding of ETL concepts and processes

● Great knowledge of design patterns and back end architecture best

practices

● Sound knowledge of Front End basics like JavaScript, HTML, CSS

● Experience with TDD, automated testing

● 12+ years’ experience as a developer

● Experience with Git or Mercurial

● Fluent written & spoken English

It would be great if you have:

● B.Sc or M.Sc degree in Software Engineering, Computer Science or similar

● Experience and/or interest in API Design

● Experience with Symfony and/or Doctrine

● Experience with Go and Microservices

● Experience with message queues e.g. SQS, Kafka, Kinesis, RabbitMQ

● Experience working with a modern Big Data stack

● Contributed to open source projects

● Experience working in an Agile environment

Full Stack Developer Responsibilities:

• Developing front end website architecture.
• Designing user interactions on web pages.
• Developing back-end website applications.
• Creating servers and databases for functionality.
• Ensuring cross-platform optimization for mobile phones.
• Ensuring responsiveness of applications.
• Working alongside graphic designers for web design features.
• Seeing through a project from conception to finished product.
• Designing and developing APIs.
• Meeting both technical and consumer needs.
• Staying abreast of developments in web applications and programming languages.

Requirements

• Degree in computer science.
• Experience with ( React+Node ) Or ( react + Angular) Or ( Node + Angular)
• Strong organizational and project management skills.
• Proficiency with fundamental front-end languages such as HTML, CSS, and JavaScript.
• Familiarity with JavaScript frameworks
• 
  
• Familiarity with database technology such as MySQL, Oracle, and MongoDB.
• Excellent verbal communication skills.
• Good problem-solving skills.
• Attention to detail.

Full-stack developer  - Remote position

Are you...

• Interested in working at a successful, well-funded start-up where every team member can make a huge contribution?
• Keen to make software that people will use every single day to make their lives easier?
• Excited to work on greenfield projects with responsibility and independence?
• Ready to develop and use your skills across our frontend, backend and mobile offerings?
• Meticulous about quality, and gifted with a strong desire to write beautiful code?

About the company

KeyNest solves the key exchange problem for Airbnb users. Our worldwide network of over 4,000 shops store keys so that Airbnb guests / cleaners / contractors can pick them up whenever is convenient for them. As a global partner of Airbnb we’ve checked-in over 2 million guests.

Why we need you

As the entire Airbnb ecosystem increasingly relies on KeyNest, our customers expect us to integrate additional features without reducing the ease of use that our customers love. This is why we continue to invest in beautiful, intuitive user interfaces that integrate with every tool and are used by our customers, their guests and staff, as well as our own staff.

Our product team is lead by one of the founders and complete with a director of engineering, product manager, UX designer, one mobile developer and one senior full-stack developer who will be mentoring you. We want to work with a developer who cares about the way their code impacts the people who use it.

With a genuine passion for high quality work, attention to detail and readiness to own your own projects, you will be looking for a new and exciting challenge which allows you to use your experience to drive change and maintain the high standards of our organisation.

Our Tech Stack

• C# MVC modern tech stack
• Front end web in TypeScript & Angular or Node & React
• Test Driven Development (TDD) and follow SOLID design principles.
• EF 6.0
• SQL Server 2017
• Agile experience (Scrum, Kanban)
• TFS
• Cloud hosted in Azure with micro-services architecture

Your qualities

• 2-4 years experience in C#
• Front-end web experience in Angular
• Track record of building great products
• Excited about understanding the real problems working people come up against and fixing them with technology
• You’ll love the idea of being a big part of a small team: if you come up with a great idea, you can take it all the way to production
• Motivation and ambition to succeed in a fast-paced environment
• Not afraid to take on responsibilities

What we offer

• Crucial role in a funded, dynamic & fast-growing start-up shaking up the sharing economy
• Competitive salary based on relevant experience
• Flexible working for our most committed staff
• Unparalleled opportunities to develop your career as the company develops rapidly

If you want to join the KeyNest team, please get in touch – we look forward to meeting you.

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

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:

• Understand project requirements, writing bug free clean code and ensure that the solution works per the agreed architecture, SLAs, KPIs and business model

• Integrate Django backend with third party API 

• 100% Hands on role 

• Make architecture decisions that contribute to maintainable systems 

• Adapt to rapidly evolving requirements and changing priorities and drive the team accordingly 

• Responsible to drive and support Ecommerce project activities and ensure marketplace implementation, deepen customer engagement, satisfaction, and user engagement 

• Reverse engineer for debugging errors in code and ensure quality control in the process. 

• Continually drive products towards a meaningful balance between user needs, business objectives and technical feasibility

• Documentation and reference preparation for users by writing operating instructions including changes and revisions.

• 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:

• Bachelor or Master Degree in Computer Science, Software Engineering from a reputed University

• React and/or Angular for front end 

• Proficiency in MongoDB and MySql

• Technical Skills: JIRA, Gitlab, Rest API, GCP or AWS

• Integration experience with Payment gateway, shipping company and VAT, database concepts, Experience of web services 

• Experience in performance profiling, tuning, and optimization, caching mechanisms with Enterprise level applicants

• Analytical, debugging, and troubleshooting skill with proven experience troubleshooting and fixing production bugs

• Experience in writing unit testing and test case automation. 

• 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.