Top Remote Jobs in Portugal

Own the CEO’s calendar, follow-ups, project-management systems, hiring operations, content execution tracking, metrics, reporting, and special projects. The role protects executive focus, enforces accountability across teams, coordinates hiring pipelines, analyzes financial and performance data, and builds scalable operating rhythms. It is a high-trust Executive Operations position with a performance-based path toward Chief of Staff responsibilities.

Conduct advanced research in artificial intelligence and machine learning, including deep learning, graphical models, reinforcement learning, computer perception, natural language processing, and data representation. Define complex business problems, design and deliver modeling solutions, evaluate model performance, establish scientific and engineering specifications, and build analytical roadmaps. Assess production implementation requirements, improve data capture methods, apply statistical and mathematical techniques, and resolve root causes and process bottlenecks.

Provide high-level administrative support to a CEO of multiple early-stage tech startups: manage complex calendars across time zones, handle email, coordinate meetings and projects, maintain shared documents, track tasks and deadlines, assist with personal scheduling, streamline communication, and implement AI-driven workflow improvements.

Build and maintain scalable full-stack e-commerce features, write clean and tested code, design new functionality, resolve production issues with customer support, and collaborate with developers, designers, and product owners. Work includes inventory systems, CSV tools, mobile barcode scanning, UI design systems, database modeling, and security assessments.

Own product positioning, messaging, launches, customer feedback loops, case studies, sales materials, and cross-sell campaigns for an AI-powered B2B SaaS platform. Build the product marketing function from scratch, partner closely with Product, Sales, Customer Success, Growth, and leadership, and measure adoption, pipeline, and expansion outcomes. Maintain the company’s internal product knowledge base and serve as the product’s public-facing marketing representative.

Owns diagnosis and resolution of complex customer issues across a distributed database platform. Responsibilities include SQL and query performance troubleshooting, Linux administration, customer onboarding and deployments, managed database monitoring, root-cause analysis, documentation, technical escalation, and collaboration with Engineering. The role provides customer support through tickets, email, and phone, participates in on-call rotations, and uses AI-assisted troubleshooting.

Lead design and implementation of a production-grade LLM inference platform: deploy and serve models on GPU infrastructure, optimize latency and cost with quantization/batching/caching/routing, build infrastructure in Python or Golang, operate serving frameworks (vLLM, SGLang, TensorRT-LLM), and own the inference roadmap working with CTO and Product.

Develop and execute B2B sales strategies, achieve growth targets, acquire and onboard corporate travel partners, provide system training, manage commercial deals and account setup, and maintain partner relationships through first purchase. Conduct market and competitive analysis, manage CRM reporting, and occasionally attend client meetings and industry events. The role is remote and supports corporate travel expansion across assigned international markets.

Design, build, and operate distributed backend systems in Rust; develop scalable ingestion pipelines, optimize columnar storage on object storage at petabyte scale, and manage Kubernetes clusters across AWS, Azure, and GCP. The role also involves building automation for provisioning, monitoring, scaling, and maintaining managed customer clusters.

Own strategic customer engagements from kickoff through delivery, renewal, and expansion. Lead technical program governance, audit and engineering delivery, stakeholder coordination, risk management, dependency resolution, executive reporting, and third-party collaboration. Build account intelligence, identify expansion opportunities, and ensure client satisfaction. The role requires credible technical discussions involving blockchain and smart contract architecture, strong commercial judgment, and effective management of complex global engagements.