Senior Full Stack Developer | Web Scraping, B2B Data & Automation

About Boomerang
Boomerang builds B2B data products that help businesses discover, enrich, and use prospect and company information. We’re looking for a senior developer who enjoys researching technical problems and turning ideas into reliable products.
About the role
You’ll work directly with the founder to research, build, and improve products across web scraping, data enrichment, and API-driven automation. You’ll own projects from technical research and prototyping through development and deployment.
What you’ll do

Build and maintain applications using React, Python, and JavaScript.
Develop scraping systems and pipelines for collecting, cleaning, and enriching B2B data.
Design APIs and integrate third-party data providers and services.
Build and maintain n8n workflows connecting APIs, databases, CRMs, and internal tools.
Implement error handling, retries, and monitoring for automated workflows.
Research new tools, data sources, and technical approaches.
Turn product ideas into working prototypes and production-ready features.
Improve data quality, processing speed, reliability, and infrastructure costs.
What we’re looking for

Strong hands-on experience building and shipping full stack products.
Proficiency in React, Python, and JavaScript.
Strong understanding of REST APIs, authentication, webhooks, pagination, and rate limits.
Hands-on experience with n8n, including API integrations, custom code nodes, and workflow troubleshooting.
Practical experience with web scraping, browser automation, and dynamic websites.
Familiarity with B2B data, lead generation, or data enrichment workflows.
Experience with databases, background jobs, and cloud deployment.
Ability to research independently, make technical decisions, and own delivery.
Bonus points

Deep domain knowledge of web scraping and B2B data products.
Experience with Playwright, Puppeteer, Scrapy, or Apify.
Experience self-hosting and scaling n8n.
Experience building large-scale scraping systems or integrating multiple enrichment providers.
Previous experience at a startup or building a SaaS product from scratch.
Why join us
Work closely with the founder, influence product decisions, and own meaningful parts of the technology. You’ll have room to experiment and build products that solve real customer problems.
How to apply
Share your resume, GitHub or portfolio, and a short description of a scraping, API, or automation project you’ve built. Tell us what you owned and the hardest technical problem you solved.