Top Software Engineer Jobs in Lisbon

Build scalable, low-latency systems for machine-to-machine payments and agentic commerce. Responsibilities include developing payment protocols, usage metering, pricing, outcome verification, authentication, billing, settlement, digital wallet integrations, and revenue attribution. The role requires secure, reliable, high-throughput software across edge infrastructure and transaction engines, collaborating with engineering, research, product, and design teams to deliver emerging commerce capabilities.

Build scalable software for agent-web interactions, including edge services, data pipelines, protocol integrations, developer tools, content controls, and analytics. Develop support for MCP and related emerging standards, ensuring secure, reliable, high-performance systems. Collaborate with engineering, research, product, design, and other stakeholders to take concepts into production while evaluating AI-agent interactions with websites and applications.

Software Engineering Interns will build and ship projects affecting Cloudflare’s global Internet network during a 12–14 week, full-time internship. Responsibilities include collaborating cross-functionally, working with mentors, presenting projects, developing software at Internet scale, and participating in professional development and company networking activities.

Lead the design, development, and delivery of custom Odoo modules; run customer workshops; own solutions end to end; coach developers; design development processes; collaborate with product owners and consultants; align technology with business goals; and optimize system performance and reliability.

Build and maintain production-ready, scalable web applications as a Software Engineer II. Complete projects autonomously, collaborate on solutions, improve processes, anticipate roadblocks, and support team goals in a remote distributed environment. The role requires proficiency in Scala or Java, experience with Elasticsearch or Postgres, participation in on-call responsibilities, and legal authorization to work in the EU.

Design and lead resilient, low-latency systems for machine-to-machine payments, metering, and monetization across Cloudflare’s network. Define architectures and RFCs, establish technical standards, partner with customers and product teams, lead incident response and root-cause analysis, improve observability and reliability, review complex systems, mentor engineers, and guide product KPIs and roadmaps.

Build and maintain custom Odoo modules, translate customer requirements into technical solutions, migrate databases and modules across Odoo versions, write tests, conduct code reviews, troubleshoot live systems, improve performance and code quality, and support junior engineers. The role requires Python and Odoo expertise, XML knowledge, familiarity with the Odoo ORM and version upgrades, analytical skills, and effective English communication.

Build and maintain custom Odoo modules, translate customer requirements into technical solutions, migrate databases and modules across Odoo versions, write tests, conduct code reviews, troubleshoot live systems, improve performance and code quality, and support junior engineers. The role includes end-to-end ownership of modules from technical design through deployment and support.

Develop and maintain scalable full-stack applications, creating front-end interfaces, back-end services, and APIs. Collaborate with designers, project managers, clients, and cross-functional teams to gather requirements and deliver secure, high-quality solutions. Participate in code reviews, testing, debugging, and agile development while applying modern web technologies, database systems, and software engineering best practices.

Develop, review, and refactor clean, scalable C#/.NET code in a SaaS environment. Mentor junior engineers, implement unit tests, monitoring/alerting, and produce technical documentation while collaborating on product quality, security, and performance improvements.

Build and maintain Ruby on Rails APIs for internal workflows, from stakeholder discovery and requirements refinement through design, testing, release, and evaluation. Write secure, maintainable code handling authentication, authorization, and sensitive data. Troubleshoot API issues, add regression coverage, participate in design discussions, review code, document decisions, and collaborate asynchronously in a distributed agile team.

Build complex, reliable, high-impact systems across infrastructure, machine learning, AI agents, LLM-driven tools, logistics, and B2B platforms. The role requires strong full-stack engineering expertise, data-driven decision-making, rapid experimentation, and the ability to independently solve challenging technical and business problems in a compact, autonomous team.

Develop production Rust code for managing, reconfiguring, and adapting cloud resources within a Kubernetes development platform. Collaborate on architecture, infrastructure, and feature design; use AI to improve delivery; and work directly with users to gather requirements and debug complex distributed environments. The role requires strong systems thinking, cloud-native infrastructure knowledge, and effective async collaboration in a remote-first startup.

Leads architecture, development, optimization, testing, and delivery of modern C++ 3D software for clinical dental applications. Owns rendering, geometry, APIs, CI/CD, and cross-language integrations while applying AI-assisted development practices. Investigates complex defects, mentors engineers, leads technical discussions, collaborates across product and manufacturing teams, and ensures compliance with medical device software quality processes.

Build and scale Nuitee’s flight infrastructure from a production product into reliable API-first platform services. Responsibilities include API design, caching volatile flight offers, modeling booking data, supporting booking changes, cancellations and refunds, integrating NDC and legacy GDS flows, and improving performance and reliability. This hands-on individual contributor role requires deep backend and API expertise, flight-domain knowledge, Python experience, and ownership in a small team.

Build and operate Python services, pipelines, command-line tools, APIs, and integrations supporting vulnerability assessment, patching, testing, and security advisory publication. Responsibilities include production debugging, Linux troubleshooting, asynchronous processing, CI/CD and deployment automation, monitoring, data modeling, code review, testing, and stakeholder collaboration. The role also requires advanced use and independent validation of AI coding agents.

Build and maintain ERP business management features across backend services, APIs, databases, and user interfaces. Develop reliable software, implement database models and schema changes, investigate issues, write tests, monitor releases, conduct code reviews, and communicate risks. The role requires professional software development experience and offers opportunities to grow into larger engineering responsibilities while working with technologies including Python, Django, React, PostgreSQL, AWS, and Kubernetes.

Designs and builds Notabene’s Go-based transaction platform for secure, scalable, multi-tenant crypto transfers. The role focuses on distributed systems correctness, PostgreSQL performance, cloud infrastructure, observability, auditability, and regulated-data security. The engineer owns production operations, writes technical designs, reviews code, mentors teammates, collaborates with product and compliance teams, uses AI coding agents, and participates in on-call rotations.

Architect and build resilient, high-throughput services for agentic web discovery, content transformation, indexing, tool calling, and generative interfaces. Define emerging agent protocols and technical standards, write architectural specifications, shape product roadmaps, improve observability and reliability, lead incident response, and mentor engineers. Partner with product teams, customers, and stakeholders while driving technical governance, hiring, and engineering process improvements across Cloudflare.

Design, build, maintain, and optimize scalable cloud applications for a global transportation platform. Collaborate with product and engineering teams to deliver features, ensure platform stability and security, write automated tests, resolve technical issues, document solutions, estimate effort, and provide third-level support. The role requires JavaScript and Node.js development experience, database expertise, containerized environments, and interest in AI-assisted development.

Build and maintain scalable .NET backend services, REST APIs, commerce platforms, billing systems, and payment integrations. Develop reliable customer-facing features, collaborate with engineering and business teams, support technical decision-making, and contribute to system modernization. Required skills include C#, .NET Core, REST APIs, relational databases, Entity Framework Core, Docker, web security, and object-oriented programming. Experience with microservices, payment providers, Zuora, AWS, and Angular is preferred.

Own the technical strategy and implementation of DevSecOps for OutSystems’ release platform. Secure software supply chains through artifact signing, attestations, SBOM and provenance verification, deploy-time policy enforcement, vulnerability management, incident response, and continuous compliance automation. Lead cross-team initiatives, architecture reviews, security incidents, mentoring, and standards development while building resilient delivery infrastructure with Kubernetes, cloud platforms, Terraform, CI/CD, and automation.

Develop and maintain automated tests for Veeam products, enhance testing frameworks, design and implement tests, analyze source code and results, manage defects, support testing systems, and build testing infrastructure. The role requires C# programming, Windows or Linux experience, collaboration with international teams, and strong analytical and coding skills.

Develop and maintain automated tests for Veeam products, enhance testing frameworks, analyze source code and test results, manage defects, and support testing infrastructure. Collaborate with software development teams while working with Python, PowerShell, C#, CI/CD tools, and test management platforms.

Design and build Go services for Telnyx’s serverless platform, function deployment pipeline, global control plane, and edge infrastructure. Own backend APIs, resource lifecycles, workload deployment, asynchronous workflows, observability, and reliability. Work with Kubernetes, distributed systems, relational databases, and multi-region services. Improve developer experience through APIs, CLI tooling, and clear error handling, while participating in on-call and diagnosing production performance and reliability issues.