Fullstack Engineer - Y Combinator Travel / Airline SaaS

Job Summary

We are looking for a skilled MEAN Stack Developer with 3–5 years of experience in building scalable web applications using MongoDB, Express.js, Angular, and Node.js. The ideal candidate should have experience developing REST APIs, integrating frontend and backend services, and working in Agile environments.

Key Responsibilities

• Develop and maintain web applications using the MEAN stack (MongoDB, Express.js, Angular, Node.js).
• Build scalable RESTful APIs and backend services.
• Develop responsive and user-friendly UI using Angular.
• Design and optimize MongoDB database schemas and queries.
• Collaborate with cross-functional teams to deliver high-quality software.
• Write clean, maintainable, and reusable code.
• Troubleshoot, debug, and optimize application performance.
• Participate in code reviews and follow best development practices.

Required Skills

• 3–5 years of experience in MEAN Stack development.
• Strong knowledge of Angular, Node.js, Express.js, and MongoDB.
• Experience with JavaScript, TypeScript, HTML5, and CSS3.
• Hands-on experience in developing REST APIs.
• Good understanding of authentication (JWT/OAuth) and API integration.
• Experience with Git and Agile/Scrum methodologies.
• Knowledge of cloud platforms (AWS/Azure) is an added advantage.

Key Competencies

Technical leadership

Problem-solving and analytical thinking

Communication and stakeholder management

Team mentoring and coaching

Decision-making

Ownership and accountability

Collaboration

Time management

Nice to Have

Microsoft Azure certifications.

Experience with Blazor or Angular.

Experience with GraphQL.

Exposure to AI-assisted development

Our Core Full Stack

Front-End Engineering 

• React for building complex, state-heavy interactive dashboards 
• JavaScript (ES6+) and TypeScript for type-safe management of simulation data 
• State management (Redux/Zustand) optimized for high-frequency data updates 

Back-End & Microservices 

• .Net and Spring Boot for building high-scale, resilient microservices 
• REST APIs for seamless communication between services and front-end consumers 
• Microservices architecture and system integration patterns 

Engineering Excellence 

• GitHub for version control and rigorous Code Reviews 
• CI/CD pipelines, Docker, and Kubernetes for cloud-native deployment 

Key Responsibilities 

• Low-Level Design (LLD): Convert high-level architectural blueprints into detailed technical designs, including class diagrams, sequence diagrams, and API specifications. 
• Technical Mentoring: Lead and coach the engineering team through pair programming, technical 1-on-1s, and hands-on guidance to elevate overall team competency. 
• Standards Enforcement: Ensure all code adheres to the defined engineering standards, SOLID principles, and design patterns established by the Architects. 
• Code Quality & Review: Conduct comprehensive code reviews to maintain high quality, ensuring the team delivers clean, testable, and maintainable code. 
• Technical Anchoring: Serve as the "go-to" expert for the squad to resolve complex technical blockers and provide clarity on implementation details. 
• Hands-on Development: Direct implementation of critical and complex modules, setting the benchmark for performance and reliability. 
• System Integration: Oversee the technical execution of integrations between full-stack applications and core data layers (Databricks/Neo4j). 
• Delivery Governance: Ensure the squad meets sprint objectives by maintaining a high standard of execution and managing technical debt effectively. 

Preferred Qualifications 

• 8 to 10 years of professional experience in full-stack software development. 
• Proven track record in a Tech Lead capacity, with strong experience in creating Low-Level Designs. 
• Expert-level proficiency in .Net, Spring Boot, and React. 

Job Title: Lead I – Python Full Stack Engineer (Python + React)

Location: Hyderabad

Work Model: Hybrid (3 days in office)

Notice Period: 0–15 Days (Immediate joiners preferred)

Job Summary:

We are looking for a Lead Python Full Stack Engineer with 6–7 years of development experience to join our engineering team in Hyderabad. The ideal candidate will have strong hands-on expertise in React UI and Python backend development, with solid experience in modern testing frameworks, CI/CD, and database management.

Key Responsibilities:

• Design, develop, and maintain full-stack applications using React (frontend) and Python (backend).
• Implement reusable UI components and ensure a seamless user experience with React.
• Build and manage backend services using frameworks such as Django, Flask, or FastAPI.
• Develop and maintain unit and end-to-end tests using frameworks like Jest, Mocha, and Cypress.
• Manage state using libraries such as Redux, Zustand, or MobX.
• Configure and maintain CI/CD pipelines for efficient deployment.
• Integrate with relational and non-relational databases such as PostgreSQL, MySQL, or MongoDB.
• Collaborate with cross-functional teams to deliver scalable, maintainable solutions.

Required Skills & Experience:

• 6–7 years of full-stack development experience.
• Strong hands-on expertise in React UI (top priority).
• Proficiency in Python with frameworks like Django, Flask, or FastAPI.
• Expertise in unit testing (Jest, Mocha) and E2E testing (Cypress).
• Experience with Vite or similar build tools.
• Strong understanding of CI/CD pipelines.
• Experience with RESTful APIs, web services, and routing (React Router).
• Solid understanding of PostgreSQL/MySQL/MongoDB databases.
• Strong problem-solving and debugging skills.

Nice to Have:

• Familiarity with Node.js or Express.js for backend development.
• Exposure to front-end technologies such as HTML, CSS, and JavaScript (ES6+).

Job Summary:

As a MERN Stack Developer, you will be responsible for designing, developing, and maintaining robust full-stack applications using MongoDB, Express.js, React.js, and Node.js. With 5+ years of experience, you’ll work closely with cross-functional teams to deliver secure, performant, and user-friendly solutions.

Key Responsibilities:

• Build end-to-end web applications using the MERN stack
• Write clean, maintainable, and efficient code
• Integrate RESTful APIs and third-party services
• Optimize applications for maximum performance and scalability
• Collaborate with product, QA, and DevOps teams throughout the SDLC
• Participate in code reviews, troubleshooting, and improvement initiatives

Required Skills & Qualifications:

• 5+ years of experience in full-stack development with MongoDB, Express, React, and Node.js
• Strong JavaScript/TypeScript skills (ES6+)
• Solid understanding of RESTful APIs, MVC architecture, and microservices
• Experience with Git and Agile methodologies
• Familiarity with responsive UI/UX best practices

Preferred Skills:

• Exposure to cloud platforms like AWS or Azure
• Experience with CI/CD pipelines and testing frameworks like Jest or Mocha
• Familiarity with containerization tools like Docker/Kubernetes

• +2 years experience working as a react.js developer.
• In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
• Knowledge of REACT tools including React.js, Redux, Material UI.
• Experience with user interface design & user experience design
• Knowledge of performance testing frameworks including Mocha and Jest.
• Experience with browser-based debugging and performance testing software.
• Excellent troubleshooting skills.
• Good project management skills.
• Developing applications in React including component design and state management for specific use cases
• Experience working with at least one SQL and NoSQL Database (MongoDB, SQL Server, Snowflake, Postgres preferred)
• Basic experience with AWS platform

Responsibilities

• Design and develop REST-based web services utilizing Java micro services web frameworks (Spring Boot)
• Apply design principles and patterns in creating enterprise level solutions, as needed
• Perform web services tuning and performance testing
• Implement unit tests as needed
• Support front-end developers in leveraging web services
• Automate/script common developer tasks, continually optimize personal and team workflows
• Infrastructure setup and configuration
• Engage in code review and feedback process
• Take a feature from inception to completion independently across the stack
• Collaborate with teammates on proposed UX/UI and provide feedback as needed
• Participate in and support the entire SDLC processes

Requirements

• Spring Boot, Spring Security, Spring JPA & Hibernate
• Relational data modelling concepts and experience in PostgreSQL, MySQL, or similar
• Adopted opinionated RESTful web services design patterns
• Microservices-based application architecture
• Application containerization technologies, including Docker, Kubernetes, and cloud-vendor implementations (AWS, Azure, other)
• Other modern technologies relevant to the technology stack defined here
• Javascript ES6 or later
• React
• Git

What you need to have: