Top Software Engineer Jobs in Portugal

The Senior Software Engineer will enhance Dashlane's Web Platform reliability and performance, focusing on quality, security, and team collaboration while integrating AI tools.

The Senior Software Engineer will ensure product installations meet client requirements, develop custom interfaces, and support integrations using various technologies while mentoring peers.

As a Software Development Engineer in Test, you will design and implement tools for testing, automate checks, and maintain code quality while collaborating within an agile team.

As a Senior Software Engineer, you will design, develop, and maintain full-stack applications using Angular and Java, manage cloud deployments, and collaborate with teams to improve software solutions.

Own and improve Langfuse SDKs (Python and TypeScript), ensuring reliability, performance, API design, integrations with AI frameworks, OpenTelemetry support, documentation, and developer experience.

Lead optimization of concurrent systems, scale backend microservices, and collaborate with developers and engineers on deployment for retail solutions.

Lead the delivery of scalable software solutions to improve patient outcomes in primary care. Collaborate across teams to define requirements and drive impactful changes.

Build and operate production custody systems: signing service, key management, chain integrations, and transaction pipelines. Own end-to-end subsystems, integrate new chains, collaborate with cryptography on threshold signing and key recovery, write post-mortems, and produce clear async design docs and PRs.

Design, develop, and maintain high-quality web applications using CodeIgniter and PHP. Collaborate with cross-functional teams to define and ship features, ensure application performance and quality, identify and fix bugs, and maintain code quality and automation.

Develop and improve algorithms for automated treatment-planning software using modern C++ (C++17+). Work in an agile team, engage with clinical experts and product owners, design and implement complex algorithms, create prototypes, participate in architecture and code reviews, write tests and technical documentation, follow medical-device regulatory guidelines, mentor peers, and support production monitoring and maintenance.

Lead full‑stack development for Invisalign Palatal Expander treatment planning software. Design, implement, test, and maintain frontend and backend systems, CI/CD pipelines, and AWS infrastructure. Collaborate with multidisciplinary teams, follow medical device regulatory quality standards, write unit/integration tests in TypeScript, and support on‑call rotations.

Build and ship browser-based 3D interactive features using React, Three.js, and WebGL; integrate frontend with a C++ computational backend on AWS; use AI tools (Claude Code) to accelerate development; prototype AI-powered product features; and collaborate with clinical scientists, UX, ML engineers, and QA.

Develop, test, and deliver C++ features for a Windows-based 3D CAD system and supporting cloud services. Implement and prototype functionality, improve algorithms for performance, write unit tests, participate in code reviews, and collaborate with QA, product, and cross-functional teams to clarify requirements and ensure high-quality releases.

Design, implement, and optimize complex algorithms for automated treatment-planning software using modern C++ (C++17+). Participate in end-to-end development, architecture, prototyping, testing, documentation, and regulatory-compliant medical device software practices. Collaborate with clinicians, product, QA, and mentor engineers while improving reliability, performance, and production monitoring.

Develop and improve algorithms for automated treatment planning software for Invisalign. Participate in end-to-end development, design, prototyping, code reviews, testing, documentation, and production support. Collaborate with clinical experts and product teams, implement complex algorithms in modern C++17 with full test coverage, follow medical-device regulatory and quality guidelines, mentor other developers, and drive performance, reliability, and architectural improvements.

Lead end-to-end delivery of customer-facing features, designing and implementing 3D geometric and numerical algorithms in C++, contributing to Go backend services, leading architecture decisions, mentoring engineers, collaborating with QA/SQA, and maintaining regulatory traceability for medical software.

Lead design and execution of test plans for 3D CAD applications, APIs and AI features. Develop and maintain Python-based automated tests, manage datasets for AI, validate AI algorithms, set up CI, perform non-functional testing, analyze results, and collaborate with cross-functional teams to ensure production-ready releases.

Lead end-to-end design and delivery of customer-facing features in C++ and Go, implementing high-performance 3D geometry and numerical algorithms, owning architecture and technical decisions, mentoring engineers, coordinating cross-team dependencies, ensuring testability and regulatory traceability for medical software.

Develop and modernize clinical research software using C++ and Go; maintain legacy code, implement unit/integration tests, ensure regulatory compliance, collaborate with cross-functional teams, and use AWS, Kubernetes, Docker, and CI/CD in an Agile/Scrum environment.

Senior full-stack product engineer owning features end-to-end: research customer problems, write product specs and wireframes, design and implement frontend and backend solutions, collaborate with product, design and infra, and ship high-quality, scalable features for tens of thousands of users.

Senior full‑stack product engineer owning large product areas end-to-end: research, specs, wireframes, implementation, and shipping reliable features. Collaborate with product, design, and infra; balance speed and quality; solve ambiguous customer problems and build scalable abstractions.

Design, build, and maintain backend API and database services for a cloud PBX platform. Drive architecture decisions for scalability, reliability, and observability; profile and optimize performance; debug production issues; collaborate on testing strategies; write unit-tested code and mentor peers.

Design and build scalable Java/Spring Boot microservices for high-volume data ingestion, processing, and access. Work with SQL and data pipelines, integrate cloud and legacy systems, optimize performance, write tests, participate in architecture and CI/CD, and deploy containerized services using Kubernetes and Helm while contributing to platform modernization.

Lead development of an IP phone configuration/provisioning server: analyze phone documentation, create integration specifications, implement and validate support for phone models, produce technical configuration guides, add analytics and usage metrics, profile and optimize performance, and maintain high-quality Java backend code while collaborating with Product, QA, and support teams.

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.