Senior Backend/Fullstack Engineer

Job not on LinkedIn

🕒 May 18

🇩🇪 Germany – Remote

⏰ Full Time

🟠 Senior

🔙 Backend Engineer

👻 Ghost score 23%

What it means: how likely this posting is sitting open without active hiring.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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decircle

WebsiteLinkedInAll Job Openings

1 - 10 employees

Founded 2019

📣 Marketing

📦 Logistics

💼 Consulting

Marketing • Logistics • Consulting

Decircle is a talent partner specializing in staffing and recruiting for decentralized organizations and projects related to Web3. As a boutique recruitment agency, Decircle focuses on identifying and attracting talent in the blockchain and Web3 sectors, fostering connections within the community of decentralization enthusiasts and guiding them in finding their roles in the evolving decentralized landscape.

📋 Description

• Design and implement backend systems for data synchronization between Notion and external databases/workflows. • Model hierarchical data structures and implement scalable storage solutions (e.g., Supabase). • Build tools to automate the Atlas edit workflow , detecting document structure changes and generating proposals. • Develop integrations with third-party APIs and orchestrate data flows across services. • Collaborate with cross-functional teams to define system architecture and ensure technical alignment. • Research and contribute to building a custom knowledge management platform (e.g., using Model C Protocol Servers). • Advocate for and implement AI-assisted tooling within the workflow.

🎯 Requirements

• 5+ years of experience building production-level backend services. • Strong proficiency in JavaScript / TypeScript. • Experience with Python , Go , Rust , or Java is a plus. • Solid knowledge of SQL databases , with ability to design and query relational and graph-based schemas. • Experience working with Notion APIs (Node.js) and orchestrating third-party APIs. • Familiarity with pagination , rate limits , and structured data formats. • Ability to design and implement efficient algorithms. • Experience with Supabase or equivalent modern DB platforms. • Strong communication and technical documentation skills. • Comfortable working with AI assistants and integrating them into daily workflows. • Research mindset – open to exploring and integrating new technologies and protocols.