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Urgent! Fullstack Developer (BQA / NATO) Long-Term Contract, Remote (Europe) Job Opening In Budapest – Now Hiring Kats Recruitment

Fullstack Developer (BQA / NATO) Long Term Contract, Remote (Europe)



Job description

Fullstack Developer (BQA / NATO) Long-Term Contract, Remote (Europe)

Role Overview

You will be responsible for designing, building, and maintaining robust full-stack applications in a high security environment.

You will interface directly with stakeholders in BQA / NATO projects, ensure compliance with strict standards, conduct code reviews, and contribute to the architecture and roadmap.

Key Responsibilities

  • Build, test, deploy, and maintain full-stack software that meets NATO / BQA requirements
  • Translate security and compliance requirements into code-level solutions
  • Perform peer code reviews and enforce best practices
  • Diagnose, troubleshoot, and resolve performance, reliability, and scalability issues
  • Contribute to architectural decisions and system design
  • Liaise with clients, stakeholders, and security auditors
  • Write clear technical documentation

Mandatory Requirements (candidates who fail any one will be rejected)

  1. Security / Compliance / Defense Domain Experience

    • Minimum 5+ years in roles involving security, defense, government contracts, or regulated environments
    • Proven experience working in or with NATO / defense / security frameworks
  2. Full-Stack Technical Expertise

    • At least 3 years hands-on experience building and maintaining both backend and frontend systems
    • Strong backend skills in one or more: Node.js, Java, C#, or Go
    • Strong frontend skills with React, Angular, or Vue.js
    • Proficient in RESTful APIs, GraphQL, WebSockets, etc.
    • Deep understanding of relational (e.g. PostgreSQL) and NoSQL databases
  3. DevOps & Infrastructure Skills

    • Experience with CI/CD pipelines, automated testing, containerization (Docker, Kubernetes)
    • Infrastructure as Code tools (Terraform, Ansible, etc.)
  4. Security, Cryptography & Hardening

    • Hands-on knowledge of encryption, key management, secure coding practices
    • Experience with threat modeling, OWASP, secure authentication & authorization
    • Familiarity with auditing, compliance (e.g., ISO 27001, NIST, etc.)
  5. Architectural & Design Capability

    • Ability to make architectural decisions for large systems under security constraints
    • Experience in microservices, event-driven systems, or distributed systems
  6. Soft Skills & Process Discipline

    • Excellent English communication (written + verbal)
    • Strong documentation skills
    • Ability to operate in structured environments (requirement tracking, code reviews, QA, audits)
    • Self-discipline, attention to detail, accountability
  7. Logistics & Eligibility

    • Residency in Europe (EU or permissible location)
    • Authorized to work remotely under contract
    • Able and willing to undergo background/security checks

Preferred (But Not Mandatory)

  • Experience specifically in NATO or BQA contracts
  • Knowledge of domain-specific protocols or standards used in defense
  • Certifications in security (CISSP, CISA, etc.)
  • Experience with real-time systems, embedded systems

What We Offer

  • Competitive contract compensation
  • Fully remote working (Europe)
  • Long-term, stable engagement
  • Opportunity to work on high-impact, secure systems
  • Professional environment with clear expectations and standards

Application Instructions

To be considered, please submit:

  • Your CV / resume, clearly highlighting relevant security / defense / government / regulated environment experience
  • A cover letter addressing each of the mandatory requirements and explaining how you meet them
  • Links to or descriptions of past projects in security/regulated contexts
  • References or contacts from past contracts (if permissible)

Note: Applicants who do not clearly demonstrate strong match for all mandatory requirements will not be considered.

We respect your time; apply only if you fully qualify.


Required Skill Profession

Computer Occupations



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