Senior Full Stack Engineer, AI-first SaaS

🔥 13 hours ago

🇺🇦 Ukraine – Remote

⏰ Full Time

🟠 Senior

🤖 AI 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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5Blue Software

WebsiteLinkedInAll Job Openings

11 - 50 employees

Founded 2018

🎯 Recruiter

🤝 B2B

💼 Consulting

Recruitment • B2B • Consulting

5Blue Software is a talent sourcing and software development services agency that helps companies hire, onboard, and retain European tech talent, with operational roots in Israel and Ukraine. They offer staff augmentation, dedicated engineering teams, CTO-as-a-Service, and full-cycle software development, plus administrative support such as payroll processing, compliance/legal handling, accounting support, relocation, and employee benefits. 5Blue runs a structured recruitment and vetting process (technical assessments, interviews, scorecards), promotes fast placement timelines (typically under 30 days), and emphasizes ongoing account management and retention for remote and distributed tech teams.

📋 Description

• Build and deliver full-stack features end to end using React, TypeScript, and Node.js • Develop intuitive, performant, and scalable frontend experiences for a complex B2B SaaS product • Implement backend services, APIs, business logic, and third-party integrations • Develop and integrate AI-powered product features • Participate in system design and architectural decisions • Use AI-assisted development tools such as Claude Code or similar in everyday workflow • Review, debug, test, and improve AI-generated code while maintaining ownership of implementation • Take responsibility for CI/CD and DevOps aspects of features • Work closely with Engineering and Product to define requirements and technical solutions • Participate in Agile ceremonies and collaborate with a distributed international team • Communicate technical decisions clearly and confidently in English

🎯 Requirements

• 5+ years of professional software development experience • Strong experience with Node.js and React • Solid knowledge of TypeScript • Experience building and integrating REST APIs • Strong full-stack capabilities across frontend and backend • Experience developing and shipping AI-powered features in a production environment • Practical experience using AI coding assistants such as Claude Code, Cursor, GitHub Copilot, or similar tools • Good understanding of software engineering fundamentals, testing, debugging, and code quality • Experience with cloud environments and CI/CD • Understanding of scalable and distributed systems • English — C1 or higher, with strong verbal and written communication skills • Experience working in a product or SaaS environment • Nice to have: experience with Python • Nice to have: experience with AWS or another major cloud provider • Nice to have: familiarity with Docker, Kubernetes, or microservices • Nice to have: experience with LangChain, LangGraph, or similar AI/agent frameworks • Nice to have: experience building high-scale SaaS products with complex, polished UIs • Nice to have: background in security, compliance, GRC, or developer tools • Nice to have: experience taking ownership of the frontend area within a full-stack team • Nice to have: experience with automated testing and QA practices

🏖️ Benefits

• Opportunity to work remotely • 1:1 English Classes: Individual English language training • Premium Medical Insurance: Comprehensive health insurance • Supportive, collaborative, and dynamic international team • All necessary equipment supplied • Full accounting assistance in Ukraine and Poland • 18 days of annual vacation • 7 days of sick leave without a doctor's note • Flexible payment solution with multiple withdrawal options