Evolve Today

Evolve Today is a recruitment agency connecting top engineering talent with world‑class opportunities.

Senior Backend Software Engineer

Location

Worldwide

Posted

29 days ago

Salary

0

Seniority

Senior

Job Description

Senior Backend Software Engineer

Evolve Today

Role Description We are hiring Senior Backend Software Engineers (Node.js) to build scalable backend services powering an AI-driven research tool used by scientists, clinicians, and analysts worldwide. You will contribute to an AI-powered research platform that helps users rapidly locate, compare, and summarize evidence from peer-reviewed scientific literature. The system provides citations, direct links to sources, and supports workflows such as study comparison, evidence synthesis, and drafting research summaries. This is a backend-focused engineering role, with occasional frontend contributions. You will design and implement scalable services, APIs, and integrations, ensuring reliability, performance, and clean engineering practices. We’re looking for senior engineers with: - 8+ years of experience - Strong Node.js expertise - A solid understanding of algorithms and system design - Hands-on experience building production-grade systems Contract & Working Model: - Flexible collaboration model: employment (CIM) or B2B - Location: Romania — remote or hybrid from Cluj / Iași If you’re a senior backend engineer passionate about building scalable systems and contributing to AI-powered scientific tools, send your profile and let’s talk. Responsibilities - Build and maintain backend services and APIs - Design and implement REST and/or GraphQL APIs - Develop business logic and system integrations - Ensure scalability, reliability, and performance of backend components - Collaborate with frontend teams to support end-to-end delivery - Write clean, testable, maintainable code - Participate in system design, architecture discussions, and Agile ceremonies Requirements - 8+ years of professional software engineering experience - Bachelor’s degree in Computer Science, Engineering, or equivalent - Strong foundation in algorithms, data structures, and core programming concepts - Strong expertise in Node.js - Proficiency with TypeScript / modern JavaScript - Experience designing RESTful APIs and/or GraphQL APIs - Data modeling experience (SQL / NoSQL) - Understanding of authentication and authorization concepts - Experience working with production-grade systems - Knowledge of scalability, reliability, and performance best practices - Experience with unit and integration testing - Familiarity with Git and Agile workflows Nice to Have - Experience with observability (logging, monitoring, tracing) - Exposure to distributed systems - Awareness of frontend systems (React, API consumption patterns) - Experience with CI/CD pipelines and DevOps workflows - Exposure to AI / LLM integrations

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