Top Software Engineer Jobs in Portugal

Design and build LLM-based autonomous security agents and self-healing remediation pipelines. Integrate AI-driven threat detection into CI/CD and GitOps workflows, automate vulnerability research, patching, and security orchestration across cloud-native infrastructure.

As a Software Engineer, you'll develop an AI agent platform for productivity apps, focusing on AI integration to enhance user experiences.

Work full-time for 12–14 weeks with an engineering team to ship code that runs at Internet scale. Deliver an autonomous project, collaborate cross-functionally, work with a mentor, present results company-wide, and participate in professional development and community activities.

Build and maintain Ergodic AI’s AI platform across back-end and front-end systems. The role involves developing with Python web frameworks and JavaScript/TypeScript, integrating with client technology stacks and workflows, applying AI, ML, and LLM concepts, and contributing to DevOps, cloud deployment, testing, and infrastructure practices. As an early-stage hire, the engineer will help shape the product and solve complex data and AI challenges.

Build scalable software systems, internal platforms, tools, APIs, services, and infrastructure using Go and TypeScript. Solve complex architectural problems, support AI-native and agentic systems, work with Azure and AWS, adopt AI-powered development tools, and improve engineering reliability, performance, architecture, and developer experience. Collaborate with distributed technical teams in a fully remote environment.

Develop and scale backend services for a referential data platform managing financial statements and related datasets. Responsibilities include Java 21 and Spring development, API and microservices implementation, data integration, cloud and Docker deployment, CI/CD, testing, code reviews, and Agile collaboration. The role requires partnering with business stakeholders and cross-functional teams to deliver reliable, high-quality data solutions.

The Senior Software Engineer will enhance the REDAPL platform by building a query engine, leading projects, and driving architectural decisions while collaborating with product teams.

Build and architect high-performance advisory brokerage services for block trading, portfolio management, and IRA products. Develop frontend and backend systems, databases, and distributed architectures with strong concurrency, scalability, availability, and low-latency performance. Design order management and financial transaction systems while contributing across the technology stack in an early-stage environment.

Build and ship backend services for Primer’s payment orchestration platform, handling routing, fallback logic, tokenization, authentication, and workflows at scale. Deliver features from specification through production, participate in architecture and code reviews, monitor system health, troubleshoot production issues, and collaborate on reliable, maintainable engineering solutions in a remote-first team.

Build and ship full-stack features for a data intelligence SaaS platform, spanning backend services and frontend interfaces. Use AI coding assistants to accelerate development while applying sound engineering judgment. Participate in architecture discussions, code reviews, testing, incident response, troubleshooting, documentation, and knowledge sharing. Partner with product managers to translate requirements into technical solutions. The role emphasizes SaaS architecture, AWS cloud fundamentals, Docker, Kubernetes, CI/CD, agile delivery, autonomy, and production ownership.

Build and maintain a production-grade iOS application using Swift and SwiftUI, integrating AI features through backend APIs. Design reliable AI interaction patterns, optimize performance, memory, battery, and latency, and support streaming, retries, and fallbacks. Collaborate with backend and ML engineers on API and system behavior, capture user feedback for AI evaluation, maintain App Store quality, and monitor and resolve production issues.

Develop and evolve authentication and authorization microservices supporting millions of identities. Build scalable features, maintain services and developer tools, coach teams on best practices, monitor reliability, and contribute to technical roadmaps. Collaborate with engineering, data, product, and security teams while ensuring rigorous testing, code quality, GDPR awareness, and effective communication.

The Lead Product Software Engineer will develop and optimize the Kyte product using Go, collaborate with teams, mentor engineers, and establish best practices.

Design and operate customer-facing networking APIs, Python orchestration control planes, and automation that configures routers across global points of presence. Build resource allocation, job queues, retries, rollback, reconciliation, BGP, WireGuard, GRE, NAT, firewall, DNS, cloud interconnect, and Envoy xDS integrations. Own production monitoring, incident response, billing synchronization, API compatibility, and network configuration drift detection across application and infrastructure layers.

Build and maintain scalable, backend-heavy web services and full-stack features for a youth-focused digital platform. Responsibilities include technical design, implementation, testing, deployment, monitoring, documentation, architecture reviews, production support, on-call participation, and infrastructure automation. The role emphasizes performance, reliability, security, DevOps practices, and collaboration with product and design teams.

Build and scale patient-facing and care-management applications across the full stack. Develop React and TypeScript interfaces, backend services, REST APIs, asynchronous workflows, and PostgreSQL applications. Integrate with payers and healthcare partners using FHIR, HL7, SFTP, and related interfaces. Operate AWS infrastructure, strengthen CI/CD, testing, monitoring, security, authentication, authorization, PHI protection, and production reliability. Stabilize workflows, improve reconciliation and error handling, and support governed AI-enabled clinical processes.

Build backend features for Reconciliation and Global Accounts, improve merchants' reporting dashboards, deploy and monitor production code, and ensure high correctness for financial data under PCI/GDPR constraints.

Design, build, and operate security integrations and detections (WAF, RASP, API security, IAST, SCA) across Datadog tracing libraries (.NET/Java focus). Take features from prototype to production, monitor telemetry, debug cross-system issues, shape roadmap, collaborate with product and platform teams, and mentor peers to improve code quality and adoption.

Build and maintain Camunda 8 backend data-layer services across relational databases and Elasticsearch/OpenSearch. Design scalable storage, query, retention, streaming, and secondary-storage solutions; investigate production data issues; improve performance and operability; and deliver engineering initiatives collaboratively with Product, QA, Support, and SRE. Participate in L3 support and on-call rotations.

As a Software Engineer, you'll develop software for Ceph and distributed storage, collaborating with a global team to enhance cloud solutions.

Design, build, and deploy LLM-based autonomous security agents and self-healing remediation pipelines. Integrate AI security tooling into CI/CD, automate vulnerability research, testing, and patch deployment, and create real-time threat mitigation via WAF/service-mesh rule updates and orchestration across security scanners.

Build full-stack software that turns satellite intelligence into mission-critical decisions. Architect and implement deterministic multi-agent orchestration, geospatial RAG with distributed vector consistency for DDIL environments, optimize high-concurrency spatial indexing and queries, and integrate AI/LLM workflows across cloud and edge. Collaborate cross-functionally, ship production systems, and prepare for forward-deployed, customer-facing engineering roles.

Canonical is hiring a Software Engineer to develop features for Kubernetes, focusing on operators and integrations while collaborating in a distributed team.

Provide technical support for applications: investigate and resolve issues, develop and implement interfaces, create support documentation, collaborate with Design/Test/Dev teams, estimate resources, and monitor project performance.

Investigate and resolve verified application issues, develop and implement interfaces, create technical support documentation, collaborate with design, test and development teams, provide user support, estimate resource timings, and monitor project performance to meet goals.