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Blockchain 121

Freelance, Full Stack Engineer - OpenAi API, Scrapers, Automation tools

Remote

United kingdom

$ 250 /hour

Freelance

24-04-2025

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Expired

Job Specifications

We’re building a next-generation outbound automation platform designed to turn messy, unstructured data into high-value, personalized outreach at scale.

Looking for a freelancer to quote us for the build. We have mock product and landing page ready. Need an experienced engineer to bring it to reality.

Looking for a product-minded full stack engineer to help us build the engine that transforms raw profiles into polished, anonymized assets, matches them to relevant opportunities across the web, enriches contact data, and automates personalized outreach flows.

This is greenfield product work, solving problems in data transformation, web scraping, workflow automation, and smart engagement tooling.

What You’ll Be Building:
Parse unstructured data (PDFs, docs, profiles) to structured, anonymized records.
Enrich profiles with skills, experience highlights, and metadata.
Search and scrape the web
Integrate with external systems (APIs, ATSs, CRMs, job boards, public data sources).
Enrich contact data (emails, social profiles, decision makers).
Automate personalized outreach — tracked smart links, dynamic content, access control.
Build event-driven pipelines for engagement tracking and workflow automation.

Tech Problem Areas:

This role touches multiple complex problem domains:
ProblemExample Tech
Data Parsing & NLP
LLMs, OpenAI API, Spacy, PDF parsers
Web Scraping & Search
Puppeteer, Playwright, Scrapy, Custom Scrapers
Workflow Automation
Event-driven architecture, Serverless, AWS Lambda
Data Enrichment
Contact APIs, Email Verification, Graph Search
Outreach Automation
Smart Links, Email Sequencing, Access Control

Who You Are
Senior engineer with product instincts and interested the latest advancement in Ai, you care about outcomes, not just code.
Experience building data-driven products or automation tools.
Strong knowledge of backend systems architecture, data pipelines, API integrations.

Bonus: Experience with sales tech, sourcing tools, HR tech, or CRM platforms (but not required).

Example Tech Stack
Backend: Node.js / Python / Go
Web Scraping: Puppeteer / Playwright / Scrapy
LLM / NLP: OpenAI API, HuggingFace, Spacy
Infra: AWS / GCP, Serverless, Lambda
Frontend: React / Next.js
Data: Postgres / MongoDB / ElasticSearch, Supabase
Outreach: Sendgrid / Custom SMTP / Smart Links

Why This Role:
Greenfield build, architecture decisions start with you.
Solve technically interesting problems at scale.
Direct access to the founder — rapid feedback loops.
Ownership, real impact on product direction.
Remote-first culture , async friendly.

About the Company

Building world class teams for leading Blockchain & Crypto organisations. We merge over 20 years’ experience in the technology talent space with a clear and specific focus on the Blockchain industry and its projects. This means you get a more tailored, specialist and all-round better and faster service. We are deeply embedded in the Blockchain industry. We have the experience and the testimonials to back it up. Our Network is vast and our skill is proven. Our vision today is to be the go-to partner for Blockchain co... Know more