Senior Backend Developer for Cybersecurity Tools

last updated April 22, 2026 19:02 UTC

1kx

HQ: Hybrid

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Mediatech is a rapidly expanding digital publisher that reaches more than 25 million people each month through Cybernews, Wellness Pulse, InvestorsObserver, and a broader network of platforms. We provide reliable, independently researched insights across technology, cybersecurity, health, and finance. Our investigations have revealed major security flaws at NASA, WhatsApp, ChatGPT, PayPal, LinkedIn, and the Red Cross, and uncovered the largest password leak to date (RockYou2024). We are a team powered by curiosity, impact, and fast-paced growth — and we’re seeking people who want to help build what’s next.

Team

This strategic role focuses on early adoption of new tools, validating new concepts, and creating proof-of-concept solutions. It involves extensive analysis and risk evaluation, serving as the primary person to explore and test new directions before they are more widely implemented.

You

We are looking for an experienced senior backend developer (Laravel, Symfony, Node.js) with strong systems design abilities and a strategic approach. You will be an early adopter and evaluator of emerging tools and ideas, responsible for creating POC solutions and developing AI-driven applications. This position requires deep analysis, risk assessment, and collaboration across teams.

WHAT YOU’LL DO

• Build and maintain backend applications using Laravel, Symfony, and Node.js, including API integrations and internal front-end connections
• Test and validate new tools and technologies, developing proof-of-concept solutions
• Design and implement AI-driven systems, leveraging strong systems design skills
• Conduct analysis and risk assessments on new tools, methodologies, and technical directions
• Support the cybersecurity research team by creating and refining automation and investigative tools
• Work closely with security researchers to improve internal tools and analyze cybersecurity data
• Improve backend performance, write clean and secure code, and contribute to overall system security
• Stay current with PHP and Node.js best practices, AI advancements, and emerging cybersecurity trends

WHAT WE EXPECT

• Strong experience with PHP 8 (Laravel and Symfony), Node.js, SQL, and RESTful APIs
• Solid understanding of systems design, with the ability to architect AI-based solutions
• Proven experience with AI-assisted development and tools
• Background in testing new technologies and building proof-of-concept implementations
• Strong analytical abilities and skill in assessing technical risk
• Experience working with SQL and collaborating with Big Data teams
• Knowledge of security best practices in web development
• Excellent problem-solving skills and the ability to work independently in a fast-paced environment
• Strong communication and collaboration abilities, especially when working with security teams

NICE TO HAVE

• Experience with React or similar front-end frameworks
• Hands-on experience building AI or ML-powered applications

WHAT YOU GET

• Health and well-being benefits including private health insurance with mental health coverage, in-house physiotherapy, and access to premium wellness and fitness resources
• Paid sick days and additional vacation time that increases over your tenure
• A strong focus on personal development supported by the 70/20/10 model, plus a learning budget for courses, conferences, books, and subscriptions, along with regular knowledge-sharing opportunities
• Recognition and celebration of personal milestones and work anniversaries
• Quarterly events, workations, wellness challenges, marathons, and other initiatives that strengthen connection and collaboration
• Pet-friendly, centrally located offices designed for productivity and comfort, with snacks and dedicated spaces to work or unwind
• A hybrid work model built on trust and flexibility

We care about our team as much as our content. That’s why we offer meaningful benefits that support your growth, well-being, and everyday life.

The future of media is already here — join us and be part of shaping it. At Mediatech, your ideas influence what comes next. Build your skills, work with great people, and create something that has real impact.

GROSS SALARY

4400–7000 EUR gross per month, with flexibility to discuss different compensation depending on your skills and experience.

Apply info ->

To apply for this job, please visit the application page

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