Top Tech Jobs & Startup Jobs in Warsaw

Manage a portfolio of B2B energy-sector customers, serving as their primary contact for platform, data, and API questions. Provide first-level support, onboarding, training, knowledge-base content, account health tracking, QBR preparation, and product adoption support. Coordinate with technical, product, and commercial teams, contribute customer feedback to roadmap discussions, and support renewals and upsell opportunities. Success is measured through retention, account growth, and adoption.

Build and own Aura’s AI Intelligence Platform, creating scalable systems that unify sensitive data and enable secure, privacy-preserving AI agents. Design architecture, develop distributed systems, support production operations, and make technology decisions across AWS, Python, and TypeScript. Establish security, privacy, observability, testing, and reliability practices while mentoring engineers and influencing technical direction across teams.

Owns electrical engineering standards, reference designs, power architecture, and technical assurance across Volta’s global AI factory portfolio. Leads electrical design from concept through commissioning, covering utility interconnection, medium- and low-voltage distribution, UPS, generation, protection, and high-density AI/HPC power. Partners across engineering, procurement, technology, and operations, supports live projects, directs external design partners, and builds the electrical engineering team.

Supports daily accounting operations, consumer claims processing, and finance activities across Europe. Assists with standardized processes, operational excellence, process improvement, automation, and digitalization initiatives within an international shared service center. The role is designed for students or recent graduates seeking practical finance and accounting experience while collaborating with a multilingual team.

Develop and execute demand-generation, account-based, content, and industry-engagement campaigns to grow JoVE’s biopharma business. Partner with sales to identify target audiences, channels, and opportunities; build content calendars; support thought leadership and customer advocacy; monitor industry trends; and measure, test, and optimize campaign performance to generate marketing-sourced and marketing-influenced pipeline.

Own and develop Oracle ERP integrations across Oracle Fusion Cloud ERP, NetSuite, and JD Edwards. Design REST, SOAP, database, and file-transfer interfaces; investigate new ERP connectivity; build and maintain integrations; resolve production issues; document solutions; and support technical project managers with implementation and configuration. The senior role sets technical direction, handles complex customer cases, and mentors engineers.

Build and maintain backend services powering food search and logging. Tune Elasticsearch performance across indexing, query evaluation, relevance, cluster management, and monitoring. Develop search-quality metrics and experiments, evaluate data technologies, and collaborate with engineering and product teams. Write production Scala services while working with SQL and Python, large-scale data infrastructure, databases, Kafka, cloud platforms, and AI-powered development tools.

Design, build and operate backend services in AWS for a multi-service hospitality platform. Implement new features, payment and EPOS integrations, improve performance, monitoring and deployment automation using TypeScript/Node.js and databases like Mongo Atlas, Postgres RDS or DynamoDB. Collaborate in a UK development team and automate infrastructure, CI/CD and QA.

Design and maintain ETL/ELT pipelines and data warehouse architecture, analyze and visualize data with SQL/Python/R and BI tools, build machine learning models and A/B tests, and partner with engineering and business teams to deliver data-driven insights for fintech use cases (fraud detection, segmentation, forecasting).

Build and evolve backend services and APIs for an AI-driven networking product. Design and deliver product functionality end-to-end, improve existing microservices, collaborate on product decisions, and own solutions through deployment with minimal supervision. The role uses Node.js with NestJS, Go, PostgreSQL, gRPC, Docker, GCP, and AI developer tooling in a fully remote startup environment.