Top Tech Jobs & Startup Jobs in Portugal

Lead EMEA sales for mediasmart's CTV and omnichannel solutions. Build and manage multi-market pipelines, close complex deals, develop agency and advertiser relationships, shape go-to-market messaging with Product and Marketing, represent the company at industry events, and collaborate with Customer Success and AdOps to ensure campaign execution and product adoption.

Commission-based freelance B2B sales professional responsible for prospecting corporate decision-makers, presenting wellness and creativity experiences, securing bookings, nurturing repeat business, and managing regional client relationships. The role is independent, flexible, and non-exclusive, with uncapped commissions and ongoing earnings from recurring clients. Candidates should have B2B sales or partnerships experience, strong presentation skills, professional English, and the right to work independently in their market.

Develop and maintain Java backend services and desktop applications using Spring Boot, JavaFX, and Java Swing. Build REST and SOAP integrations, implement business logic and application security, write unit tests, participate in code reviews, and support CI/CD deployments. Collaborate with business teams, analysts, and developers in an Agile environment while troubleshooting technical issues and maintaining clean, reliable code.

Open unsolicited application for Pixelmatters, a digital product studio seeking talented strategists, designers, and engineers. Candidates should send portfolio or examples of work demonstrating their skills. Offers collaborative environment, competitive salary, health insurance, ClaudeCode access, and hybrid remote-default policy with an office in Porto.

Localize and translate in-app learning and marketing content between Japanese and Korean with pedagogical focus. Create and edit lesson scripts, activities, and vocab lists for Korean learners of Chinese. Support content QA, upload and coordinate content projects, and collaborate with international teams while following manager guidance. Maintain high quality, iterate based on feedback, and use AI tools as needed.

As a Distributed Systems Engineer, you'll design and evolve LiveKit's core systems, implement resilient architectures, and enhance reliability and developer velocity, working on critical features in production environments.

Build post-training infrastructure for voice and text agents, including training environments, verifiers, synthetic data pipelines, evaluations, and model release gates. Run end-to-end training experiments, select open-weight models, improve tool-using and multi-turn behavior, deploy models to production, and iterate using real-world usage. The role emphasizes Python engineering, reinforcement learning, GPU-based training, data quality, reward design, and production machine learning.

Own end-to-end pipeline generation for an enterprise-focused AI SaaS company. Build full-funnel inbound and outbound-assisted programs, translate positioning into campaigns and narratives, run experiments across channels, use AI and automation to improve GTM execution, and create repeatable growth systems. Partner closely with sales, product marketing, and content to optimize funnel conversion, handoffs, attribution, and revenue outcomes.

Lead the company’s ML/AI platform from experimentation through production, including SageMaker training infrastructure, model serving, inference pipelines, MLOps, and Java microservice integrations. Set AI/ML technical direction, develop GenAI and LLM retrieval and agent architectures, establish evaluation and safety guardrails, and partner with data science, DevOps, product, and engineering leadership on scalable ML roadmaps.

As a Senior Backend Engineer at Mapped, you'll develop ETL pipelines, GraphQL and gRPC APIs, and scalable systems for a data platform.