Top Software Engineer Jobs in Lisbon

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 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.

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.

Build and extend high-scale egress-path systems running on Linux kernel and network dataplanes. Work on kernel network stack (eBPF), routing (BGP), and distributed systems to optimize packet flow, reliability, and performance. Collaborate across teams and participate in on-call rotation.

Build and maintain fullstack identity verification systems using React/TypeScript and backend languages (Python/Kotlin/Ruby). Design scalable APIs and microservices on cloud platforms, improve reliability and security, mentor engineers, drive architecture and deliver privacy-compliant features end-to-end.

Design, develop, and maintain Entrust's iOS SDK for document capture. Implement camera capabilities, on-device image processing and ML, integrate RESTful APIs, improve CI/CD and test automation, collaborate with product and design to deliver accessible, high-quality SDK features across devices.

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

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

Design and implement high-performance C++ applications for optical networking hardware. Contribute to system modernization, use STL/Boost and multithreading, write automated unit (GTest), integration and stress tests, and participate in design reviews and cross-functional collaboration.

Design, implement, and maintain telecom mediation and billing services with a focus on resiliency, scalability, security, and test coverage. Collaborate in an Agile team, identify improvements, document solutions, mentor juniors, and support full product lifecycle delivery.

Design and implement modern backend API services and serverless functions for web and IoT-connected applications. Build microservice architectures, ensure high code quality with automated testing and CI, collaborate in agile teams, and innovate on greenfield projects while learning new technologies.

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.

Design and build scalable backend systems for PlanetScale's database platform (Vitess/Postgres), collaborate on distributed systems challenges, work autonomously and with customers, optimize performance, and mentor engineers while operating systems at production scale.

Architect, develop, and scale cloud services, dashboards, and data pipelines to support robotics and autonomous vehicle telemetry. Integrate IoT devices with Azure services, build APIs/microservices, implement observability and CI/CD, validate systems in lab and field, and mentor junior engineers.

The role involves designing and building AI-focused research tools, optimizing performance, engaging with customers, and scaling product features quickly.

The Backend Engineer will design scalable infrastructure for AI research tools, collaborate on optimizing system performance, and own evaluation pipeline automation.

Design, develop, and maintain scalable Python/Django backend services and RESTful APIs for financial products. Implement data models, write tests, optimize performance, ensure availability and security, participate in code reviews, and collaborate with cross-functional teams to deliver features and maintain production systems.

Design and implement complex customer-facing frontend features using TypeScript and React. Provide technical leadership, mentor junior engineers, drive frontend architecture and best practices, improve performance and accessibility, partner with product/design, integrate with backend APIs, and manage technical debt and scalability.

Develop and maintain open-source, silicon-optimized AI/ML inference application packages (Inference Snaps) for Linux/Ubuntu Core. Debug, write high-quality code, review upstream contributions, secure and optimize local inference deployments across embedded devices to gateways, and collaborate with a distributed team and stakeholders.

Design, implement, and maintain cross-platform C++ features for Multipass on macOS and Windows. Lead architecture, mentor peers, write high-quality tested code, review contributions, debug user issues, collaborate with a distributed team, engage the open-source community, and support customers.

Build and maintain backend-first features and integrations for Triptease's marketing channels. Work across the full stack (primarily backend), design scalable distributed systems, implement CI/CD on cloud platforms, collaborate closely with product teams, pair program, write tests (TDD), and contribute to squad strategy and product quality.

Design, develop, and maintain full-stack SaaS software using .NET/C#/ASP.NET and Angular; build high-performance database solutions (SQL Server, PostgreSQL); participate across the SDLC including coding, testing, deployment, monitoring, troubleshooting, code reviews, documentation, and cross-team collaboration in a hybrid Lisbon role.

Full‑stack development on a scalable platform: build backend microservices (Java/Spring Boot), design REST APIs, implement React/TypeScript UIs, work with SQL/NoSQL, contribute to event-driven systems, ensure testing/observability, and collaborate with DevOps/SRE across the feature lifecycle.