Fullstack Developer Long-Term Contract, Remote

Kats Recruitment

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profile Job Location:

Budapest - Hungary

profile Monthly Salary: Not Disclosed
Posted on: 15-10-2025
Vacancies: 1 Vacancy

Job Summary

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: Java C# or Go
    • Strong frontend skills with React Angular or
    • 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.

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 ...
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Key Skills

  • IVR
  • SOAP
  • Avaya
  • Solaris
  • Cost Accounting Standards
  • Database Design
  • Hibernate
  • ITIL
  • Weblogic
  • Express.js
  • Contracts
  • ASP