Application Security Engineer @ NIX Tech Kft.

2 days ago


Budapest, Czech Republic NIX Tech Kft. Full time
  • 1+ year of professional hands-on experience in web application security, penetration testing, or ethical hacking.
  • Strong knowledge of web security fundamentals
  • Comprehensive understanding of software development lifecycle (SDLC)
  • Solid knowledge of testing methodologies (OWASP WSTG or similar application security methodologies)
  • Familiarity with OWASP Top 10 and common web vulnerabilities (e.g., XSS, SQLi, SSRF).
  • Solid knowledge of the various vulnerability types, their root cause, exploitation techniques, and mitigation patterns.
  • Proficient in using application security testing software and common penetration testing tools such as Kali Linux, Burp Suite, Metasploit, Nmap (NSE), Acunetix, etc.
  • Knowledge of how modern web technologies and network protocols work.
  • Basic scripting skills (e.g., Python, Bash, PowerShell).
  • Strong English communication and reporting skills – both written and verbal.
  • Curiosity, initiative, and a growth mindset.

Will be a plus:

  • Prior experience in bug bounty programs or CTF competitions.
  • Programming/development experience (any language: JavaScript, Python, etc.).
  • Exposure to CI/CD pipelines and DevSecOps practices.
  • Understanding and hands-on experience in cloud security (AWS/Azure/GCP).
  • Awareness of privacy and compliance frameworks (e.g., GDPR, HIPAA, ISO 27001).
  • Relevant certifications such as OSCP, CEH, CompTIA PenTest+, etc.

NIX, a global supplier of software engineering and IT outsourcing services, is looking for an Application Security Engineer in its office in Budapest (Vaci Greens, 13th district). You’ll be part of a team of professionals who are ready to find the best tailor-made IT solutions for their multinational clients in various industries and solve complex problems.

WHAT CAN WE OFFER YOU:

  • Competitive compensation packages.
  • Stable employment, based on a full-time employment contract.
  • Private health insurance (Medicare Сlinic).
  • AYCM sport pass, providing discounts at various sports facilities in Hungary.
  • Interesting tasks and diverse opportunities for developing your skills.
  • Free training courses, including English.
  • Participation in internal and external thematic events, technical conferences.
  • A spacious office in the heart of Budapest (13th district).
  • All necessary devices and tools for your work.
  • Active corporate life.

If you feel you’re ready to join the team, apply for this job now We’re already looking forward to meeting you

,[Perform Web/API application penetration testing and vulnerability assessments., Effectively communicate and coordinate with engineers, leads, and stakeholders to deliver quality and security to the product., Document vulnerabilities and recommend remediations in clear, detailed reports with exceptional attention to details., Supports product owners in remediating vulnerabilities., Triage results from SAST and DAST tools and validates real security issues., Help shape and improve team workflows, tools, and methodologies., Participate in knowledge sharing, secure coding training for developers, and internal team growth., Actively enhances professional expertise and skills.] Requirements: Web application security, OWASP WSTG, OWASP Top 10, knowledge of vulnerability types, Kali Linux, Burp Suite, Metasploit, Nmap , Acunetix, Network protocols, Web, Python, SDLC, SAST, DAST, Penetration Testing, API Security, Vulnerability assessment, CI/CD, SSDLC, AWS, Azure, compliance frameworks, OSCP, CEH, CompTIA PenTest+, Cloud security, GCP, DevSecOps, Bug bounty, CTF Additionally: International projects, Paid English courses, Mentoring program, Bike parking, Free coffee, Playroom, Shower, Free snacks, Modern office, No dress code.

  • Budapest, Czech Republic NIX Tech Kft. Full time

    2+ years of Java development experience. Experience with Spring Ecosystem. Experience with monitoring and metrics tools (Dynatrace, Splunk, CloudWatch). Experience with RESTful API and messaging design and development. Experience with relational and NoSQL databases. Work with bug tracking systems (JIRA). Understanding of Agile and Scrum...


  • Budapest, Czech Republic NIX Tech Kft. Full time

    4+ years of Java development experience. Experience with Spring Ecosystem. Experience with monitoring and metrics tools (Dynatrace, Splunk, CloudWatch). Experience with CI/CD tools and processes (Jenkins, Cloud Foundry, SplitIO, etc). Experience with RESTful API and messaging design and development. Experience with relational and NoSQL databases. Experience...


  • Budapest, Czech Republic NIX Tech Kft. Full time

    2+ years of Web/Mobile/Desktop application testing experience Knowledge of testing methods and technologies, understanding of formal software development processes (SDLC) Experience in building testing strategies for various projects and evaluating test coverage Experience in working with bug-tracking systems, and version control systems Understanding of...


  • Budapest, Czech Republic NIX Tech Kft. Full time

    Knowledge of testing methods and technologies, understanding of formal software development processes (SDLC) Basic understanding of  testing strategies Knowledge about bug-tracking systems and version control systems Understanding of client-server architecture Basic API testing experience SQL basics English skills at the upper-intermediate or higher...


  • Budapest, Czech Republic NIX Tech Kft. Full time

    4+ years of experience in Backend engineering. Proficiency in Go. Strong expertise with one of the cloud platforms (AWS/ Azure/ GCP). Experience in designing, developing, and deploying scalable backend systems. Deep understanding of microservices architecture, distributed systems, and API design. Strong problem-solving skills and the ability to work...


  • Budapest, Czech Republic NIX Tech Kft. Full time

    Аt least 2 years commercial experience as QА engineer Knowledge of any programming language (Java / Python / JS / C# / Groovy) Experience with Selenium WebDriver (core library of any WebDriver based framework) Strong knowledge of testing processes, techniques Good understanding of Agile methodologies (Scrum, Kanban, etc.) Experience in REST API...


  • Budapest, Czech Republic NIX Tech Kft. Full time

    At least 1-year work experience in the IT field. Strong knowledge of Golang and understanding of the concurrency model of the language. Excellent knowledge of HTTP protocol. Experience with HTML, CSS, and JavaScript. Good knowledge of SQL and experience with one of the relational databases. Experience in working with Git. Upper-Intermediate English level...


  • Budapest, Czech Republic NIX Tech Kft. Full time

    2+ years of experience in the role of Salesforce Administrator/Implementer. In-depth understanding of Salesforce architecture and data model. Confident use of the Salesforce declarative tools suite. Good knowledge of SOQL, SOSL, and Salesforce database interaction. Understanding of REST/SOAP protocols and experience with Salesforce...


  • Budapest, Czech Republic NIX Tech Kft. Full time

    1+ years of experience in frontend development, with a focus on Angular. Proficiency in JavaScript (ES6+), Angular and TypeScript. Strong skills in HTML, СSS, and modern web standards. Fluent in spoken and written English - B2 level and above. Flexible analytical thinking, learnability, and perseverance in finding solutions and achieving goals. Familiarity...


  • Budapest, Czech Republic NIX Tech Kft. Full time

    1+ years of experience in frontend development, with a focus on React. Proficiency in JavaScript (ES6+), React, and TypeScript. Strong skills in HTML, CSS, and modern web standards. Experience with React state management libraries (Redux, Zustand, etc.) and data-fetching tools (React Query, etc.). Fluent in spoken and written English - B2 level and...