Posted today · be early

Full Stack Engineer

The COOL Company

India, United StatesremotePosted today

Skill Required

Full-Stack-EngineerFull-Stack-DeveloperSoftware-EngineerBackend-EngineerFront-End-DeveloperFull-Stack-EngineeringFull-Stack-Web-DeveloperFull-Stack-Product-EngineerFull-Stack-Software-EngineeringFull-Stack-JavaScript-EngineerFull-Stack-Software-DeveloperFull Stack Developersoftware engineeringQuery Optimizationdata engineeringDesign PatternsSpring BootTypeScriptPostgreSQLGoogle AdsEngineeringREST APIsObservabilitySnowflakedebugginganalyticsTailwindsecuritybuildingRESTdesignReactCI/CDOAuthCloudjQueryJavaFulltime

Key highlights

Level Required: 4-6 years of professional software engineering experience
Notable requirement: Must be able to work primarily between the hours of 9:30 AM - 6:30 PM ET

Role overview

We are looking for a Mid-Senior Full-Stack Engineer to join our Product Engineering team, reporting to the Engineering Manager (Bi Yoo). This role is responsible for building and maintaining the web applications that power our advertising platform, including the Cool AI campaign management system, billing and invoicing module, and advertiser-facing dashboards, working across our frontend (React/TypeScript) and backend (Java/Spring Boot) stack.

Responsibilities

Design and implement full-stack features across React (TypeScript, Tailwind CSS, Vite) and Spring Boot (Java 17, PostgreSQL) codebases
Build and maintain RESTful APIs with proper authentication, authorization (role-based access control), and input validation
Design and evolve PostgreSQL database schemas using Flyway migrations, including JSONB modeling for flexible domain objects
Develop responsive, accessible UI components following existing design patterns and component libraries
Integrate with third-party advertising platform APIs (Google Ads, Meta Marketing API, Adform) for account management and data synchronization
Implement and maintain OAuth flows for external platform connections
Build complex business logic including billing calculations, invoice generation, and payment processing workflows
Write efficient database queries and optimize application performance for large datasets
Collaborate with the data engineering team on Snowflake integrations for analytics and reporting features
Participate in code reviews, providing constructive feedback and maintaining code quality standards
Troubleshoot production issues across the full stack using AWS CloudWatch logs and application monitoring
Contribute to CI/CD pipeline maintenance and deployment processes

Requirements

4-6 years of professional software engineering experience in full-stack web development
Strong proficiency in Java (11+) and Spring Boot, including Spring Security, Spring Data JPA, and RESTful API design
Strong proficiency in React (16+) with TypeScript, including hooks, state management, and modern component patterns
Solid experience with PostgreSQL including schema design, query optimization, indexing strategies, and migrations
Experience with CSS frameworks (Tailwind CSS preferred) and building responsive layouts
Familiarity with cloud services, particularly AWS (S3, SES, Lambda, ECS, CloudWatch)
Experience integrating with third-party REST APIs and OAuth 2.0 authentication flows
Understanding of Git workflows, pull request processes, and collaborative development practices
Ability to independently own features from technical design through deployment
Strong debugging skills across frontend and backend, including browser DevTools and server-side logging
Must be able to work primarily between the hours of 9:30 AM - 6:30 PM ET
Must have a player/coach mentality, willing to both execute and lead
Ability to juggle multiple projects concurrently and set and meet deadlines
Skilled at receiving and providing direct feedback
Collaborative mindset and great teamwork skills
Entrepreneurial & adaptable; great learning skills
Curious, research-minded, data-informed
Able to search for possible solutions and apply them
Creative confidence
Proactive communicator
A sense of humor and a love of online culture
Thrives in a start-up culture