Full Stack Engineer

🕒 August 5

🐊 Florida – Remote

🐊 Florida – Remote

⏳ Contract/Temporary

🟡 Mid-level

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 70%

What it means: the chance that no one is really hiring for this job.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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The COOL Company

WebsiteLinkedInAll Job Openings

51 - 200 employees

📣 Marketing

📱 Media

🤖 Artificial Intelligence

💰 $5.2M Series A on 2017-08

Marketing • Media • Artificial Intelligence

The COOL Company is an AI-powered omnichannel advertising platform that unifies creative automation, dynamic creative optimization, media activation, and transparent measurement/attribution. It enables brands, agencies, publishers and franchise/local teams to generate and personalize creatives quickly, activate campaigns across CTV, display, search and social, and continuously optimize budgets, bids and creative assets using AI-driven insights and reporting to drive measurable performance and stronger ROAS.

📋 Description

• Build and maintain web applications powering the advertising platform, including the Cool AI campaign management system, billing and invoicing module, and advertiser-facing dashboards • Deliver features end-to-end from database schema design through API development to polished UI implementation • Design and implement full-stack features across React, TypeScript, Tailwind CSS, Vite, Spring Boot, Java 17, and PostgreSQL codebases • Build and maintain RESTful APIs with authentication, role-based authorization, and input validation • Design and evolve PostgreSQL schemas using Flyway migrations, including JSONB modeling • Develop responsive, accessible UI components following existing design patterns and component libraries • Integrate Google Ads, Meta Marketing API, and Adform APIs for account management and data synchronization • Implement and maintain OAuth flows for external platform connections • Build billing calculations, invoice generation, and payment processing workflows • Write efficient database queries and optimize application performance for large datasets • Collaborate with data engineering on Snowflake integrations for analytics and reporting • Participate in code reviews and maintain code quality standards • Troubleshoot production issues 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 • Hands-on experience using AI coding assistants (e.g., Cursor, Claude Code, GitHub Copilot) in daily development workflow, with judgment to review, test, and correct AI-generated code • Experience building product features that integrate LLM APIs (e.g., OpenAI, Anthropic, AWS Bedrock), including prompt design, structured outputs, or retrieval-based approaches • 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, preferably Tailwind CSS, and responsive layouts • Familiarity with AWS services, particularly S3, SES, Lambda, ECS, and CloudWatch • Experience integrating 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 9:30 AM and 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 and 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

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