Top Tech Jobs & Startup Jobs in Poland

Sell enterprise SaaS to new customers across EMEA/UK, consistently exceed quota, build and manage a pipeline, consult with senior executives, develop go-to-market strategies, identify product improvements from customer needs, and close new business for large accounts.

As a Staff Engineer for Revenue, you'll shape technical vision and architecture for billing and pricing systems, ensuring correctness while enhancing cross-team collaboration.

Serve as a senior network security domain authority to define network engineer personas and workflows, advise product and AI teams, validate agent behaviors across firewall, cloud/SASE, policy management, compliance, vulnerability management, and troubleshooting, and help build realistic enterprise test scenarios.

Administer and support core collaboration tools (Google Workspace, Slack, Microsoft 365), manage user accounts and access, maintain intranet and documentation, troubleshoot end-user issues, collaborate on IT infrastructure and projects, monitor performance, and implement system improvements.

The Cloud Platform Engineer will scale infrastructure, code software solutions in Python, manage K8s, AWS, Docker, and build monitoring dashboards.

Provide advanced technical support for Rain's payments platform and integrations: troubleshoot APIs, read logs, run SQL queries, own incidents with SLA/CSAT targets, document solutions, escalate to Engineering/Product, and support new feature rollouts.

Lead IT strategy and operations across UK, Poland, and US; manage M365, cloud infrastructure, vendor-supported applications (NetSuite, Mavenlink, ZenQMS, Zendesk); oversee a small internal IT team, vendor relationships, security/compliance (GDPR, UK Data Protection Act, GxP), budgeting, and user support/training to ensure reliable, compliant technology operations.

Execute trades per firm strategies, monitor crypto markets, analyze charts and indicators, follow market news, apply risk management, record and review performance, use trading platforms, and continuously develop trading skills under mentorship.

Own the cryptographic core: select and evolve MPC/TSS schemes, author protocol reviews, implement and review Rust/Go production crypto, lead audit responses, prepare incident fixes, publish and represent externally, and teach/mentor engineers while scaling the crypto function.

Build and operate production custody systems: signing service, key management, chain integrations, and transaction pipelines. Own end-to-end subsystems, integrate new chains, collaborate with cryptography on threshold signing and key recovery, write post-mortems, and produce clear async design docs and PRs.

Lead and scale the engineering organization for a regulated digital-asset custody platform. Own hiring, org design, engineering operations (on-call, incidents, release hygiene), delivery against roadmaps, audit and regulator readiness (SOC 2, SAMA, ISO 27001), and cross-functional alignment. Amplify an existing small, specialized team to meet regulatory and institutional requirements while preserving culture and retention.

Manage and grow the hotel's luxury e-commerce store: optimize UX/UI and conversion, analyze sales and user behavior (Google Analytics), implement SEO and merchandising, oversee product content and premium customer service, coordinate fulfillment, returns and financial processes, and collaborate across hotel teams to deliver a cohesive luxury online experience.