Senior Full-Stack Developer w Warszawa, Polska

PwC is a powerful network of over 250.000 people across 158 countries. All committed to deliver quality in Assurance, Tax, Advisory & Technology services. Match your curiosity with continuous opportunities to learn, grow and make an impact. Join PwC and be a game changer.

As part of PwC’s international network serving more than 200,000 clients across 152 countries, our Threat Intelligence team delivers research-driven, actionable intelligence to public and private sector organisations worldwide. We identify emerging intrusion techniques, track hundreds of threat actors — from organised crime groups to state-affiliated espionage actors across more than 27 countries — and provide intelligence that underpins incident response, adversary emulation, managed threat hunting, and strategic security decision-making.

Our ability to scale and deliver high-quality intelligence depends on robust, secure, and well-designed technology platforms. In this role, you will design and build the tools that enable our analysts to collect, analyse, and publish intelligence at pace — and ensure our clients have reliable access to critical insights.

We are looking for:

Senior Software Engineer

Your future role:

• Design and build scalable automation tools and data collection systems, integrating with third-party APIs and bespoke data sources,
• Develop and maintain internal platforms, services, and RESTful APIs supporting intelligence analysis, publication and distribution,
• Contribute to systems managing and presenting structured technical intelligence data,
• Collaborate with product and service owners to improve interfaces and APIs enabling seamless integration of intelligence into client-facing services,
• Write clean, performant and reusable frontend and backend code, including the use of AI Agents,
• Review peers’ work constructively with focus on user needs and engineering best practices,
• Contribute to internal documentation for both technical and non-technical stakeholders,
• Support the continuous evolution and global scaling of our platforms.

Apply if you have:

• At least 5 years of experience in software development,
• Strong experience with Python,
• Advanced knowledge of JavaScript and modern web technologies (HTML/CSS),
• Experience designing, developing and consuming RESTful APIs,
• Experience working with AI tools such as Cursor or GitHub Copilot,
• Ability to build performant, maintainable and reusable UI components,
• Experience working in globally distributed teams,
• Strong written and verbal communication skills.

Nice to have:

• Experience with TypeScript, React and https://jobeax.com/link/JSd7UYCSg572jJDY,
• Experience with Python backend frameworks (e.g. Flask, Falcon),
• Full-stack development experience across frontend and backend systems,
• Experience deploying and operating applications in cloud environments (GCP, AWS or Azure),
• Familiarity with modern development practices (CI/CD, containerisation, cloud-native architectures).

By joining us you gain:

• Work flexibility – remote working model, flexible start of the day, workation, sabbatical leave,
• Development and upskilling - our full support during onboarding process, mentoring from experienced colleagues, training sessions, workshops, certification co/financed by PwC and conversations with native speaker,
• Wide medical and well-being program - a medical care package (incl. freedom of treatment, physiotherapy, discounts on dental care), coaching, mindfulness sessions, psychological support, education through dedicated webinars and workshops, financial and legal advice,
• Possibility to create your individual benefits package (a.o. lunch pass, insurance packages, concierge, veterinary package for a pet, massages) and access to a cafeteria - vouchers, discounts on IT equipment and car purchase,
• 3 paid hours for volunteering per month,
• Additional paid Birthday Day off,
• And when you start enjoying PwC as much as we do, you may recommend your friend to work with us.

Recruitment process:

• Submit your resume,
• Have a short phone conversation with our Recruiter,
• Let's get to know each other better in the interview!

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