Top Tech Jobs & Startup Jobs in Warsaw

Lead Elasticsearch vector search initiatives, designing and implementing search features, algorithms, data structures, and bug fixes. Improve vector similarity functionality, search relevance, performance, and code quality while collaborating with a globally distributed engineering and open-source community. Provide technical leadership, guide projects autonomously, review code, triage issues, and contribute modern Java code across Elasticsearch and Lucene.

Lead architecture and implementation of scalable full-stack features using NestJS and Next.js, integrate LangChain-driven AI, manage PostgreSQL schemas and performance, build responsive UIs with Tailwind CSS, implement authentication with Clerk, and ensure reliability with Puppeteer-based testing and automation.

Own end-to-end product marketing for Primer’s Partners team, including go-to-market launches, audience definition, messaging, positioning, competitive and buyer research, and partner and merchant feedback synthesis. Translate technical payment products into compelling buyer messaging, collaborate with Product, Sales, and Marketing teams, and monitor initiative performance to optimize strategy. The role requires hands-on execution, strong project management, creativity, experimentation, and independent ownership in a fast-paced remote environment.

Open application inviting candidates for future roles. Applicants complete screening questions and tests without AI assistance. Applications reviewed monthly; candidates contacted if a suitable role arises.

Design, build, and operate large-scale, low-latency telemetry pipelines and observability systems for GPU cloud and edge infrastructure. Instrument compute, storage, networking, and AI workloads; implement metrics, logging, tracing, SLOs, alerting, dashboards, anomaly detection, and integrate telemetry into operational workflows. Lead observability initiatives, collaborate with platform teams, and support on-call responsibilities.

Leads global commercial customer data governance, Customer 360 strategy, segmentation, data quality, reporting, and insight initiatives. Owns customer definitions and hierarchies across SAP and Salesforce, establishes governance and KPI standards, and aligns reporting and analytics investments with business value. Partners cross-functionally to improve data quality, reporting adoption, forecast accuracy, and AI readiness while driving change management and value realization across the commercial organization.

Manage CSL’s EMEA import-export trade compliance program across multiple legal entities. Oversee customs brokers, export controls, HS and ECCN classification, customs valuation, origin and preference determination, permits, duty mitigation, recordkeeping, audits, risk assessments, and regulatory changes. Lead regional cross-functional teams, monitor compliance metrics, manage SAP GTS master data and screening processes, support government audits, and implement process improvements and duty-saving initiatives.

Own the full sales cycle for mid-market SaaS accounts across EMEA, including pipeline generation, territory planning, relationship management, executive engagement, consultative selling, forecasting, and account expansion. Partner with solutions engineers, customer success, support, marketing, and revenue operations to guide customers through evaluation, purchase, adoption, and long-term growth.

Build and maintain Java test automation frameworks using Playwright, Retrofit, RestAssured, and Appium. Implement API, database, web, CI/CD, containerization, and orchestration testing. Use AI coding assistants and agentic workflows for refactoring, code review, root-cause analysis, self-healing pipelines, technical debt reduction, documentation, and migrations. Mentor engineers on prompt engineering and AI literacy while maintaining engineering standards, test strategies, and quality instructions.

Develop platform software for high-performance networking hardware. Responsibilities include Linux user-space and kernel development, DMA and IOMMU support, ASIC register access, high-resolution timers, network congestion statistics, configuration management services, routing protocol agents in C/C++, and automated Python testing across embedded Linux devices.