Top Tech Jobs & Startup Jobs in Budapest

Lead design and build of an end-to-end AI contract-review agent: prompt orchestration, RAG pipelines, fine-tuning, web UI and tooling, data/model infra, deployment (CI/CD/cloud), and product-driven features like assumption mapping and contract diagnostics.

Lead and execute user acquisition and performance marketing to scale an AI-powered crypto search platform. Design growth loops, run growth-hacking experiments, optimize CAC/LTV, partner with product and engineering to integrate growth features, and manage the growth tech stack and analytics to improve onboarding and retention.

Develop and execute PR strategies to increase media visibility; build relationships with tech journalists and influencers; craft press releases, pitches, and media kits; secure interviews, features, and opinion pieces; and monitor and report on media coverage and campaign effectiveness.

Plan and execute multi-channel CRM promotion campaigns for casino and sports players; analyze campaign performance using key iGaming KPIs; customize communications across email, SMS, push, popup; coordinate content and design; prioritize operational tasks to meet deadlines.

Provide corporate legal support for funding, M&A, investments, ESOP administration, corporate secretarial duties across the French entity and eight subsidiaries, advise founders on group structuring, coordinate due diligence and outside counsel, and collaborate with finance on transactional and compliance matters.

Create and own the full art pipeline for mobile puzzle games: concept, 2D assets, UI, animations, and ad creatives. Collaborate with designers, developers and producers to build and iterate interfaces and visuals in Unity, maintaining consistent style across the product.

Design, train, and improve computer-vision and generative ML models; handle end-to-end ML pipeline from data collection to deployment; prototype research ideas and convert successful prototypes into product-ready solutions; optimize models for efficient on-device inference and collaborate with product teams to integrate models.

Design, operate, and optimize high-scale PostgreSQL/Aurora databases for payments. Implement partitioning, advanced indexing, query tuning, and reliability practices. Work with analytics stacks (ClickHouse/Tinybird), search (OpenSearch), and data pipelines to support transactional and analytical use cases, migrations, and incident response.

Own web QA across website, checkout, and B2B product. Design and build test infrastructure, define coverage strategy, and run regression, smoke, end-to-end, and integration tests. Implement web test automation (Playwright/Selenium), API testing (Postman), integrate tests into CI/CD, investigate root causes, file actionable Jira/X-ray tickets, and apply AI tooling where useful. Perform manual testing when needed and collaborate with product, developers, and design.

The role involves building creative tools for content editing, enhancing features with PixiJS and WebGL, and improving collaboration workflows.