Senior Full-Stack Developer (Node.js, NestJS, Angular)

Turn marketing into a market-domination weapon. We created a new category — the marketplace for future customers. Businesses buy leads the same way they buy products in e-commerce: full visibility before purchase, clear value, predictable results. We’re the #1 lead marketplace in the USA and scaling fast.

You’ll build high-impact tools, automations, and product features that directly power growth, marketing experiments, and data-driven decisions. This role is about speed, ownership, and turning business ideas into production-ready solutions — with AI as a core acceleration tool, not a buzzword.

Requirements:

• 5+ years of experience as a Full-Stack Developer (Node.js / NestJS + Angular).

• Proven ability to deliver features fast: idea → prototype → production.

• Strong hands-on experience with:

• Angular (v15+), RxJS, NgRx

• Node.js (NestJS), TypeScript

• MongoDB, Mongoose (PostgreSQL is a plus)

• REST APIs, WebSockets, GraphQL

• Asynchronous pipelines and microservices

• CI/CD pipelines, Docker, AWS

• Testing frameworks: Jest, Cypress, Playwright, Postman

• Experience integrating external APIs, automating workflows, and collecting data at scale.

• Familiarity with AI tooling and APIs (ChatGPT, OpenAI API, LangChain, automation tools).

• Ability to rapidly prototype AI-powered tools, automations, and data workflows.

• Strong problem-solving skills and ability to work with minimal supervision.

• Product mindset: understands business goals and builds solutions, not just features.

• English level B2+.

Responsibilities:

• Build tools, automations, and product features for Marketing, Growth, and niche teams.

• Lead development of fast, high-impact product and AI-driven experiments.

• Deliver end-to-end solutions: database schema → backend → frontend → deployment.

• Maintain high development velocity while keeping code quality and test coverage high.

• Design architecture for small, independent, scalable services.

• Integrate AI systems: OpenAI API, embeddings, vector search, content generation.

• Support marketing and growth teams with experiments, A/B tests, and rapid iterations.

• Write clear technical documentation and internal guides.

• Continuously improve internal processes using AI-assisted development and automation.

Nice to have:

• Strong understanding of marketing, GTM, or growth systems.

• Hands-on experience with LangChain or similar AI orchestration frameworks.

• Experience with event-driven architectures.

• Background in AI-first or automation-heavy product environments.

• Enjoys building internal tools that make teams move faster.