• Build and evolve product features end-to-end (from idea to production) • Design and develop APIs used by customers and partners • Improve how users integrate, test, and evaluate our product • Introduce and implement AI/MCP capabilities where they improve UX or speed of adoption

• Build and ship internal Go microservices for the analytics and data pipeline • Implement event-driven handlers using NATS JetStream as part of Sarwa’s messaging infrastructure • Design and optimize PostgreSQL schemas for new product features • Write integration tests and contribute to CI/CD pipeline improvements • Participate in code reviews, architecture discussions, and sprint planning with the backend team • Collaborate with product, operations, and frontend teams to understand requirements and deliver end-to-end solutions • Continuously learn and apply new practices, and share those learnings with the team

• design and implement scalable, high-quality components and services aligned with team and company goals • contribute to technical decisions on solution design, architecture, technical debt, reliability, and performance • collaborate with product managers, designers, and stakeholders to translate customer needs into balanced technical solutions • monitor and improve system performance • champion best practices in software development, agile methodologies, and continuous improvement • own delivery pipeline (code quality, testing, deployments) and participate in on-call duties

Role Description Ciklum is looking for an Expert JavaScript Engineer to join our team full-time in Poland. As an Expert JavaScript Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. Together, we will work on the project that is the leader in agentic security, enabling enterprises to shift security tasks to AI agents to let people focus on strategic, high-value human work. - Design, develop, and maintain modern, high-performance web applications using React and TypeScript - Work independently while ensuring alignment with shared engineering standards and best practices - Communicate effectively within a distributed team, demonstrating strong written and verbal English skills, especially in asynchronous communication (e.g., Slack) - Utilize modern development tools such as Vite, Playwright, and AI-assisted programming tools (e.g., Cursor) to improve development efficiency and testing quality Qualifications - Experienced frontend web developer, Senior or above - Extensive experience with React and Typescript - Good English and strong written and verbal communication skills, especially for async communication like Slack - Ability to work independently while aligning with shared standards - Preferred if they have experience with: Vite, Playwright, and AI programming tools like Cursor Benefits - Regular salary reviews based on performance - Corporate events: webinars, offline parties, and meetups - Internal Mobility Program - Tailored education path (including full access to Udemy, certifications, etc.) - 25 paid days off: 20 business days of vacation per calendar year + 5 undocumented sick leave days - Additional health insurance - 100% company-covered Multisport card, with discounts available for family members Company Description At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress. Since expanding to Bulgaria in 2022, we’ve been building a fast-growing team that thrives on learning, collaboration, and innovation. Join us on this exciting journey and help shape the future of our delivery center.