Senior Full-Stack Engineer

🕒 July 28

🇺🇦 Ukraine – Remote

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 34%

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

• Work with a group of talented engineers providing innovative solutions to Cellular Networks problems. • Design and implement complex algorithms. • Develop and maintain high-performance, scalable, and reliable software systems. • Collaborate with cross-functional teams to identify and solve complex software problems. • Have end-to-end ownership: design, build, test, ship, and maintain full-stack solutions for large-scale products. • Leverage modern development pipelines, CI/CD, testing, and code quality practices to deliver high-impact solutions. • Work in an AI-native engineering environment that uses modern coding agents and spec-driven development to accelerate high-quality delivery.

🎯 Requirements

• 7+ years of experience as a full-stack developer (5+ years on the backend and 3+ years on frontend are also suitable) • Stable long-term involvement in projects for 2+ years. • Strong communication and interpersonal skills. Fluent English. • Fluent in server-side technologies and architecture (Java / Kotlin). • Expert in the latest JavaScript technologies (Vue.js / React). • Proficient in Microservices and Spring Boot. • Strong understanding of HTML5, CSS3, and responsive, cross-browser development. • Experience integrating frontend applications with REST or GraphQL APIs. • Experience with Git and modern CI/CD workflows. • Experience with building large-scale platforms. • Experience with SQL (MySQL, Postgres) and/or NoSQL (Vertica) DB types. • Experience with cloud development and deployment (AWS, GCP or Azure). • Hands-on experience using AI coding tools such as Codex, Claude Code, Copilot, or similar agents as part of the software development lifecycle. • Self-driven, independent, and a strong team player. • B.Sc. in Computer Science or Software Engineering.

🏖️ Benefits

• Flexible Work Environment: Opportunity to work remotely. • 1:1 English Classes: Individual English language training to enhance your communication skills. • Premium Medical Insurance: Comprehensive health insurance to ensure your well-being. • Great Team: Work with a supportive, collaborative, and dynamic international team. • Equipment Provided: All necessary equipment supplied for efficient job performance. • Accounting Support: Full accounting assistance in Ukraine and Poland. • Paid Time Off: 18 days of Annual Vacation and 7 days of Sick Leave without a doctor's note. • Flexible payment system, which allows you to withdraw funds in one click and has about twenty withdrawal options.