Join Ciklum in this Lead Full Stack Engineer role, where you will be embedded with an international cross-functional team building a product for an Israeli cybersecurity startup. This is a hands-on leadership position where you will combine deep technical ownership with the responsibility to shape the product, influence architecture, and set high engineering standards.
What You'll Do
- Lead the design and development of a secure, scalable, and high-performance web-based cybersecurity platform.
- Own delivery end-to-end from technical concept and architecture to production readiness and long-term maintainability.
- Provide technical leadership: set engineering standards, guide architectural decisions, and lead by example.
- Collaborate cross-functionally with product managers, UX/UI designers, and engineers to translate product ideas into technical solutions.
- Mentor engineers, conduct code reviews, and foster a culture of ownership, proactivity, and engineering excellence.
- Design and implement frontend and backend systems using React, TypeScript, Node.js, and Python with a focus on usability and performance.
- Architect secure APIs and backend services, embedding security best practices at every layer.
- Drive quality and reliability through testing strategies, performance optimization, and proactive issue resolution.
- Contribute to team growth, supporting technical interviews and helping maintain a high hiring bar.
What We're Looking For
- 8+ years of experience in full-stack development, delivering secure, scalable, user-focused applications.
- Proven technical leadership experience as a Team Lead or senior engineer owning architecture and mentoring others.
- Strong startup mindset: proactive, independent, and comfortable taking ownership in a fast-moving environment.
- Hands-on experience with AI-assisted development tools (GitHub Copilot, Cursor, or similar).
- Frontend expertise: React expert, delivering responsive, seamless UIs.
- Backend expertise: Strong in TypeScript, Node.js, Python.
- Experience with databases: Postgres, MongoDB, SQL/NoSQL databases, and ORM frameworks.
- Experience with Cloud & DevOps: AWS (preferred), Azure or GCP; Docker and Kubernetes.
- Excellent communication skills in English, able to work effectively with international stakeholders.
- Leadership: mentor and lead by example in technical best practices.
Technical Stack
- React, TypeScript, Node.js, Python
- Postgres, MongoDB
- AWS, Azure, GCP
- Docker, Kubernetes
Team & Environment
You will work closely with founders and an international team in a startup environment.
Benefits & Compensation
- Work in a strong community alongside top professionals in a friendly, open-door environment.
- Take on large-scale projects with a global impact to expand your expertise.
- Tailored learning: internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications.
- Explore diverse domains through internal mobility and hands-on experience with cutting-edge technologies.
- Flexibility: full remote working possibilities.
- Care: company-paid medical insurance, mental health support, and financial & legal consultations.
Work Mode
This is a local-country position based in Poland.
Ciklum is an equal opportunity employer.



