Top Tech Jobs & Startup Jobs in Warsaw

Manage accounts receivable and cash collections, follow up on overdue invoices, monitor customer credit accounts, resolve billing disputes, prepare debtor reports and cash-flow forecasts, enforce credit-control policies, support ERP and receivables-tool implementation, and assist with month-end close and audits. The role requires collaboration across Sales, Onboarding, Customer Success, and Finance in a fast-paced startup environment.

Provides Tier 1 technical support for Optro’s SaaS platform through email, live chat, and video sessions. Troubleshoots client issues, explains product functionality, collaborates with engineering and product teams on escalations, uses AI tools and knowledge bases to improve response efficiency, and identifies customer feedback trends. The role requires 3+ years of SaaS or technology support experience, advanced English, residence in Warsaw or Krakow, and availability for USA weekday hours.

Acquires, negotiates with, and manages strategic B2B partners across fintech and payments. The role owns partnership economics, oversees technical integrations with product and technology teams, enables joint sales efforts, supports partner training, expands regional market reach, and represents the company at industry events. Success requires commercial expertise, partnership lifecycle experience, API fluency, strong negotiation skills, cross-cultural collaboration, and willingness to travel.

Identify and research prospects, conduct outreach through email, phone, and LinkedIn, qualify leads, schedule discovery calls and demos for Account Executives, and maintain accurate CRM records. The role partners with sales and marketing to build a predictable pipeline for an enterprise AI platform and offers growth toward Account Executive or Customer Success positions.

Leads multi-team data engineering across AWS data lakes, warehouses, analytics engineering, streaming, and ML platforms. Owns platform strategy, reliability, security, governance, cost efficiency, data quality, MLOps, and engineering standards. Manages managers and senior individual contributors, develops talent, establishes delivery priorities, and partners with product, platform, customer, and external teams to deliver trusted data products and measurable business outcomes.

Design prediction market and trading terminal interfaces, web and mobile applications, marketing creatives, and scalable design systems. Own the end-to-end design process from concepts and wireframes to production-ready experiences, collaborating with founders, product managers, and developers. Present design decisions, incorporate feedback, and improve user experience across digital products.

Re-engage former Serbian-market clients through phone, email, and Viber outreach. Manage quarterly follow-ups, maintain Salesforce records, identify leads, analyze the sales funnel, understand client needs, and meet targets for returned customers and revenue. The role is fully remote and requires Serbian fluency, intermediate English, sales experience, CRM knowledge, and strong communication skills.

Monitor marketplace activity for suspicious behavior and fraudulent transactions. Analyze data to identify fraud patterns, emerging risks, and attack vectors; collaborate with product, data, and engineering teams to improve detection systems; maintain monitoring dashboards, reports, and alerts; support fraud prevention policies; and investigate escalated cases to recommend risk-based actions.

Product Designer responsible for creating end-to-end UX/UI solutions, conducting product discovery, designing dashboards and analytics interfaces, and simplifying complex information through data visualization. The role involves collaborating with design leadership and cross-functional stakeholders, contributing to design systems, articulating design decisions, and influencing product strategy. Candidates need at least two years of professional product design experience, a strong portfolio, and experience with design systems and reporting interfaces.

Deliver and maintain Trellix cybersecurity solutions for enterprise customers: deploy, integrate, configure, test, tune, troubleshoot, and operationalize EDR/XDR/NDR and related systems; produce technical documentation, SOPs, playbooks and reports; advise on incident response and threat hunting; coordinate with stakeholders and internal teams to ensure successful customer outcomes.