Top Tech Jobs & Startup Jobs in Dublin

Lead and grow a senior Application Security engineering team; define AppSec strategy and roadmap; engage deeply on threat modelling, security architecture, agentic/AI-native tooling, SAST/SCA, vulnerability management and automation; embed security into the SDLC, coordinate with leadership and partner teams, and represent AppSec externally for compliance and customer interactions.

Own growth for a core product area end-to-end (acquisition, activation, adoption, retention). Partner with product, engineering, marketing and GTM to design growth into the product, build acquisition loops, define measurable outcomes, and rally cross-functional teams to hit funnel and activation metrics.

Lead applied research and engineering to build production-grade video foundation models. Work includes developing latent video diffusion models, designing conditioning for controllability, scaling distributed multi-GPU training, improving training stability, building evaluation frameworks, and optimizing inference for low-latency, high-resolution deployment.

Lead end-to-end technical direction for offline video generation: bridge pre- and post-training, resolve cross-cutting technical gaps, define long-term roadmap with research leadership, accelerate research-to-product handoffs, coach engineers, and drive execution on large-scale generative video models.

Build and operate large-scale data pipelines and orchestration for generative AI research, focusing on video/audio datasets, feature extraction, labeling, and dataset quality to improve model performance.

Lead multiple engineering teams to deliver growth-focused, user-facing projects. Prioritize experiments, scalability, and measurable business outcomes. Hire, develop, and align engineers to product and revenue goals while fostering a high-velocity, collaborative culture and clear cross-functional communication.

Design, build, and operate ML platform systems to train, evaluate, deploy, and serve generative models. Improve reliability, scalability, observability, and cost-efficiency of GPU and cloud workloads. Build internal tools and agent-friendly workflows, collaborate with researchers and engineers, and drive platform architecture and automation.

Lead research and engineering for interactive multimodal generative models (text, audio, video). Propose architectures, implement pretraining and post-training, optimize low-latency streaming systems, curate datasets, define evaluation metrics, and ship production models with runtime optimizations and ongoing improvements.

Lead and evolve Synthesia's experiential brand presence globally: design booths, spatial environments, signage, print and merchandise; create cohesive physical-to-digital event identities; storyboard and craft motion/screen content; manage production and supplier-ready files; direct vendors and on-site execution; collaborate with Field Marketing and cross-functional teams to deliver scalable, production-ready experiences.

Own and evolve the marketing website platform: design Sanity content schemas, build Astro components and design-token-driven UI, ensure accessibility (WCAG 2.2 AA), SEO, localization and performance, extend tooling for AI-assisted composition, and ship end-to-end features from schema to production.