Top Software Engineer Jobs in Portugal

Develop and maintain the Tetragon agent and its eBPF/BPF programs to provide runtime security, observability, and enforcement across embedded, Kubernetes, and VM environments. Improve network parsing, design advanced eBPF-based security mechanisms, contribute to OSS communities, perform code reviews, engage in architecture discussions, and produce technical documentation.

Develop a Go-based Kubernetes-native control plane to manage an eBPF datapath for traffic security. Design APIs, custom resources, and tools to enable WAF/IDS/IPS functionality, ensure scalability and failover, debug performance and security issues, participate in code reviews, and produce technical documentation.

As a Senior Software Engineer, you will build scalable distributed systems, improve developer experience, mentor peers, and lead incident responses.

The Staff Software QA Engineer leads quality initiatives, mentors team members, develops, and executes automated tests, and participates in Agile ceremonies to ensure product quality.

The SDET will ensure quality for cybersecurity features by designing test strategies, building frameworks, and conducting various tests within a remote team setting.

The Software Development Engineer will design, implement, and optimize scalable microservices, APIs, and high-performance applications while ensuring code quality and system reliability.

Develop and maintain Python microservices, solve complex problems, write well-tested code, collaborate with teams, and continuously improve engineering practices.

The Senior Software Engineer will collaborate in small teams to develop and maintain backend and frontend components, focusing on high-availability systems, writing tests, and continuous delivery on Google Cloud Platform.

As a Senior Full Stack Developer, you'll build and enhance enterprise applications, mentor junior developers, and collaborate on system improvements. Responsibilities include coding, testing, debugging, and maintaining technical documentation while fostering team culture.

As a Senior Software Developer at ABC Fitness, you will design, develop, and test web applications, collaborate with teams, and mentor junior developers, ensuring high-quality software solutions.

Seeking an experienced Senior Backend Developer to build Ruby on Rails services for chatbots, research Slack & MS Teams ecosystems, and enhance existing systems.

The Software Development Engineer III at GoCardless will build automated systems, optimize internal workflows, and integrate various services while fostering a collaborative engineering culture.

Lead and own platform architecture across Infrahub ecosystem, implement high-impact architectural improvements, reduce technical debt, champion AI-first engineering, provide hands-on technical leadership, mentor engineers, and collaborate with product and leadership to ensure scalable, extensible systems.

Build and own end-to-end features across Sona’s platform using AI-assisted development. Direct and correct agent-produced code, work cross-functionally, engage customers in discovery and workshops, and contribute across scheduling, payroll, HR, and mobile domains.

The Senior Software Engineer will design and improve backend applications, integrating AI tools, and ensuring quality in collaborative Agile environments. Responsibilities include promoting clean code practices and enhancing system performance.

Own and improve core scraping and job-execution infrastructure for high-throughput distributed workloads. Design fault-tolerant, observable systems, lead reliability and scaling efforts, define SLAs, run incident response, mentor engineers, and contribute to architecture decisions to maximize throughput and platform availability.

Design, implement, and maintain scalable microservices and APIs using cloud-based architectures. Collaborate across product and engineering teams, ensure automated testing and CI/CD, integrate external systems, and mentor others while delivering secure, production-ready code.

Build and architect Alpaca's advisory services (block trading, portfolio management, IRA). Design scalable, low-latency distributed systems, write full-stack code, optimize throughput, work with messaging systems and OMS, and implement high-availability, concurrency-safe solutions for financial trading/exchange workloads.

Build and maintain core post-trade clearing systems and securities-finance infrastructure. Own projects end-to-end, design reliable distributed services and RESTful APIs, integrate new clearing partners, participate in on-call rotation, and improve systems to enable new product offerings.

As a Senior Software Engineer, you'll design and build scalable market data systems, improve API architecture, and enhance overall system performance, contributing to Alpaca's infrastructure for trading financial assets.

Design, develop, and maintain Verifone's next-generation payment and commerce platforms using C/C++ and Java. Work close to the Android stack (HAL), enforce coding standards, influence architecture, and use CI/CD and Linux-based tooling while collaborating with cross-functional teams.

Design, build, and maintain RESTful, asynchronous microservices and APIs for internal and external customers. Optimize service performance at scale, deliver high-quality code reproducibly, and evolve the Service Delivery platform while collaborating across teams to drive features to completion.

Lead the development of software solutions for a logistics platform, overseeing technical strategy, mentoring teams, and ensuring high-quality software delivery.

As a Junior Software Engineer at Dashlane, you will focus on backend development, collaborating with various teams to enhance user experiences and drive business growth.

Design, implement, unit-test and document embedded C/C++ software for high-availability public-address and voice-alarm systems. Integrate and commit code, fix build failures and defects, create reusable components, consult on OSS usage, and maintain clean-code practices while collaborating in a team.