Top Tech Jobs & Startup Jobs in Warsaw

Lead end-to-end annotation projects: define workflows, coordinate teams (annotators, reviewers, experts), track progress and quality via dashboards, manage launches and phase transitions, pilot tooling and methodology improvements, and build scalable operational systems and documentation to support annotator community and cross-functional alignment.

The Principal Engineer will lead the design and delivery of core platform capabilities, focusing on scalable systems, AI application, and mentoring engineers while driving architectural decisions and improving operational systems.

Build and operate scalable AWS cloud infrastructure centered on Amazon EKS, networking, infrastructure-as-code, and self-hosted services. Automate shard deployments, implement Terraform guardrails and secure ingress, support multi-region growth, and meet reliability, disaster recovery, compliance, and security requirements. Partner cross-functionally, troubleshoot application and infrastructure issues, participate in on-call and incident response, and use AI tools to improve engineering workflows.

Own end-to-end product and operational analytics for AI-powered and conventional automation features. Analyze workflows, logs, transcripts, and generated outputs to identify failures, quality degradation, adoption patterns, and business impact. Design AI evaluations, human review processes, monitoring, dashboards, and experiments, then translate findings into product and engineering improvements. Partner with Product, Engineering, Clinical, MedOps, and Legal in an ambiguous, fast-moving medical technology environment.

Manage and optimize mobile programmatic advertising campaigns toward CPA, ROAS, and retention goals. Responsibilities include bid, budget, publisher, audience, creative, geographic, and pacing optimization; A/B testing; SQL-based campaign analysis; dashboard and reporting support; LLM-assisted diagnostics; and mobile attribution analysis. The role collaborates with customer success, product support, and supply teams while supporting client reporting and QBR preparation.

Leads enterprise data engineering strategy and global teams responsible for real-world data movement, lakehouse architecture, ingestion, transformation, storage, optimization, governance, security, and standardized data products. Partners with technology, analytics, and business stakeholders across clinical, safety, financial, and corporate domains. Oversees delivery prioritization, roadmaps, quality, reliability, team development, and scalable cloud data solutions using Azure Databricks, SQL, Python, and CI/CD.

Drive European growth for electrical calibration, RF measurement, calibration software, and precision instrumentation solutions. Support distributors and key accounts through technical demonstrations, application guidance, training, installations, and complex sales cycles. Lead new product introductions, identify market opportunities, gather customer and competitive insights, contribute to product strategy, and build relationships with metrology institutes, calibration laboratories, semiconductor, aerospace, defense, chemical, and pharmaceutical organizations.

Manages the HR function across Nigeria, Curacao, and Suriname, covering recruitment, onboarding, employee relations, compliance, payroll, benefits, compensation, immigration, HR systems, reporting, governance, and office vendors. Advises leaders, supports organizational change, maintains employee records and policies, coordinates international assignments, and prepares board materials. The role serves as the organization’s sole HR representative and requires strong international HR judgment, cultural awareness, confidentiality, and stakeholder management.

Design polished interfaces for the vCluster Platform, partnering closely with frontend, backend, product, and engineering teams. Translate complex technical problems and ambiguous requirements into intuitive B2B product experiences. Conduct UX research and competitive analysis, communicate design decisions to stakeholders, and maintain visual consistency with the company brand. The role focuses on engineer-facing infrastructure products and requires technical curiosity, strong visual design, user empathy, and autonomous execution in a distributed startup environment.

Work closely with company founders to execute go-to-market strategies, improve operational processes, grow client and partner communities, and implement AI-driven solutions. The role involves managing go-to-market pipelines end to end, coordinating cross-functional initiatives, and adapting within a fast-paced startup environment.