Senior Full Stack Developer Offline

🚀 We're Hiring: Senior Full Stack Developer (Remote)

Hello everyone!
Massive is looking for a Senior Full Stack Developer to join our fast-growing, fully remote product team.

🌐 What is Massive?

Massive is an infrastructure company powering data-driven innovation at scale. We operate a global proxy network, build managed APIs for search engines (SERP), and developing AI-powered automation tools for large-scale data collection and processing.

Our products serve companies that rely on accurate, real-time data from the open web. Whether it’s search engine visibility, competitive intelligence, or training data for LLMs—we provide the infrastructure and tools that make it all possible.

🎯 Why Join Us?

• Cutting-Edge Challenges: Work on technically complex products in networking, distributed systems, and AI automation.
  
   
• Remote-First Culture: Work when and where you're most productive. All we care about is great code and strong ownership.
  
   
• Real Impact: Join a small, highly experienced team building products used at scale by global data teams.
  
   
• Founder-Led & Proven: Backed by serial entrepreneurs and industry veterans with a track record of multiple venture-backed exits.
  
   

👨‍💻 What You'll Be Doing

• Build end-to-end features across our platform, from backend APIs to front-end dashboards
  
   
• Integrate AI components into our data extraction workflows
  
   
• Optimize performance across high-concurrency systems
  
   
• Collaborate with product and infra teams on proxy optimization, WEB data collection, and error-resilient pipelines
  
   
• Drive technical architecture discussions and mentor junior developers
  
   

🧠 Who We're Looking For

• 6+ years of experience in software engineering, including backend and frontend development
  
   
• Solid knowledge of Node.js, React, and TypeScript
  
   
• Comfortable working with Go, Python, or other backend languages
  
   
• Experience designing and scaling RESTful APIs, microservices, and event-based architectures
  
   
• Familiarity with AWS and CI/CD workflows
  
   
• Strong understanding of network protocols, proxies, or scraping-related systems (big plus!)
  
   
• Independent, proactive, and excited to work in a startup environment
  
   

⚙️ Bonus Points

• Experience with web scraping frameworks or AI/LLM-based automation
  
   
• Familiarity with proxy networks and browser automation
  
   
• Exposure to data pipelines, telemetry systems, or self-healing mechanisms
  
   
• Contributions to open source or personal technical blogs/projects
  
   

💬 Team & Culture

• 20-person remote team
  
   
• Small, high-performing product & engineering unit
  
   
• English is our working language
  
   
• Collaborative and async-first communication culture
  
   

✅ The Practical Stuff

• Type: Full-time, remote
  
   
• Time zone: We’re flexible, but we prefer a working overlap of at least 4 hours with GMT+2
  
   
• Trial Period: 3 months
  
   
• Vacation: Unlimited vacation and sick days (with 2 weeks notice)
  
   
• Compensation: Competitive salary + equity incentive plan
  
   
• Perks: Health insurance reimbursement, remote work setup compensation
  
   

📋 Interview Process

1. Intro Call – 30 min
   
    
2. Technical Interview(s) – 60–90 min
   
    
3. Manager Interview – 30–60 min
   
    
4. CEO Interview – 30 min
   We focus on conversations and real-world thinking.
   
    

🧭 Want to Build the Future of Data Infrastructure?

Come help us redefine how the internet is accessed, scraped, and understood—one proxy, API, and AI agent at a time.

Apply now or reach out directly if you’re curious but not ready to commit.