Top Tech Jobs & Startup Jobs in Poland

Xfive is seeking talented professionals for web, e-commerce, project management, business development, design, and mobile development roles. Team members work on international projects, collaborate directly with clients, deliver high-quality work on schedule, and maintain clean, well-organized code where applicable. The company offers flexible hours, long-term opportunities, professional development, certifications, and a collaborative, open-minded culture.

Own product positioning, messaging, launches, customer feedback loops, case studies, sales materials, and cross-sell campaigns for an AI-powered B2B SaaS platform. Build the product marketing function from scratch, partner closely with Product, Sales, Customer Success, Growth, and leadership, and measure adoption, pipeline, and expansion outcomes. Maintain the company’s internal product knowledge base and serve as the product’s public-facing marketing representative.

Own ambiguous product problems end to end, from defining user flows and API contracts through frontend implementation, backend collaboration, testing, and production delivery. Review Haskell and React code, maintain performance, accessibility, SEO, and product quality standards, and use AI tools for prototyping, implementation, refactoring, debugging, and technical exploration. Work across product, UX, frontend, backend architecture, and AWS infrastructure in a remote-first environment.

Own the full customer lifecycle for a portfolio of accounts, including onboarding, implementation, adoption, renewals, and expansion. Build strategic customer relationships, identify risks and growth opportunities, drive product utilization, manage commercial conversations, and collaborate cross-functionally to improve customer outcomes and the Stadium platform.

Owns diagnosis and resolution of complex customer issues across a distributed database platform. Responsibilities include SQL and query performance troubleshooting, Linux administration, customer onboarding and deployments, managed database monitoring, root-cause analysis, documentation, technical escalation, and collaboration with Engineering. The role provides customer support through tickets, email, and phone, participates in on-call rotations, and uses AI-assisted troubleshooting.

Own enterprise sales across Poland and the Czech Republic, managing 30–40 named accounts and closing complex, technical deals. Build executive relationships, generate pipeline, lead full sales cycles, manage POCs, negotiate contracts, forecast accurately, and expand customer workloads. Partner closely with a Forward Deployed Engineer to sell production outcomes involving communications, connectivity, AI, and infrastructure. Establish local sales playbooks, references, and case studies while traveling throughout the region.

Develop platform software for high-performance networking hardware. Responsibilities include Linux kernel and user-space code, IOMMU and ASIC integration, hardware register access, configuration management services, routing protocol agents in C/C++, and automated Python-based testing. Interns receive mentorship, technical training, hackathon opportunities, and may receive a full-time offer after graduation.

Own backend APIs, data pipelines, Elasticsearch infrastructure, AWS platform operations, CI/CD, observability, and data-quality tooling. Build scalable enrichment, search, ETL, metering, and billing systems while contributing to a React/TypeScript application. The role requires production ownership, incident response, infrastructure modernization, and strong AI-assisted and agentic development skills.

Design, build, and operate distributed backend systems in Rust; develop scalable ingestion pipelines, optimize columnar storage on object storage at petabyte scale, and manage Kubernetes clusters across AWS, Azure, and GCP. The role also involves building automation for provisioning, monitoring, scaling, and maintaining managed customer clusters.

Own post-sales relationships for Polish and European insurance customers using an AI platform. Responsibilities include account management, executive stakeholder engagement, onboarding, training, adoption, business-value measurement, risk mitigation, product feedback, renewals, and expansion. The role requires fluent Polish and English, strong analytical and relationship-building skills, comfort with technical products and operational metrics, and regular customer travel. This is a fixed-term 12–18-month contract.