Top Software Engineer Jobs in Portugal

Build and ship Kotlin-based native Android features for an AI neobank: implement payment, insurance and financial flows; integrate REST APIs; improve performance, reliability, and on-device AI using TensorFlow Lite; collaborate with product and design to simplify user journeys and use analytics to iterate.

Develop and own scalable React-based web products for Farfetch’s global marketplace. Responsibilities include architecting frontend solutions, delivering personalized experiences end to end, collaborating with Product, Design, and engineering teams, evolving design systems and open-source packages, and applying performance optimization, GraphQL integration, accessibility, SEO, and advanced testing practices.

Develop and maintain Java backend services, REST APIs, and microservices for an enterprise mobility platform. Translate business requirements into scalable solutions, collaborate with product and architecture teams, troubleshoot production issues, and own features through testing, release, and operation. The role emphasizes clean, maintainable code, automated testing, event-driven architecture, cloud-native development, and long-term product evolution.

Lead technical architecture and development of highly available, distributed marketing platforms at global scale. Guide UI, full-stack, and data engineering teams; design Java and Spring Boot APIs; integrate data services with user interfaces; and drive cloud modernization using AWS and Databricks. Establish engineering practices for automation, testing, observability, reliability, performance, and CI/CD. Champion GenAI adoption, real-time data processing, and modern cloud-native development.

Develop and maintain secure, performant, resilient Java and Spring microservices for Mastercard’s global digital payment tokenization platform. Build event-driven, cloud-ready applications, support migration from on-premises infrastructure to public cloud, own software maintenance, and promote technology standards. Collaborate with product managers and engineers to improve customer journeys and reliability at global scale.

Software Engineer role at Paddle, a global Merchant of Record and payments infrastructure company. The posting provides limited role-specific responsibilities or qualifications, but the position focuses on software engineering using Go. Paddle offers remote or hub-based work, professional development support, unlimited holidays, and inclusive workplace benefits.

Builds software solutions for end users as a general full-stack engineer. The role emphasizes collaboration, ownership, accountability, fast-paced execution, adaptability, multitasking, rapid learning, and an ambitious, outcome-driven approach.

Develop and evolve the Kyte SaaS invoicing product using Go. Responsibilities include backend architecture, feature development, refactoring, testing, cloud deployment, CI/CD practices, Scrum participation, cross-functional collaboration, code reviews, mentoring, and evaluating backend technologies to improve scalability, performance, maintainability, and user experience.

Develop and support highly available, scalable microservices and cloud platform infrastructure for Five9’s SaaS contact center applications. Responsibilities include designing systems on Google Cloud, troubleshooting production issues, contributing to application architecture, and using Docker, Kubernetes, Spring technologies, and continuous delivery practices. The role requires strong knowledge of distributed systems, networking, data storage, security, and public and private cloud environments.

Develop and maintain comprehensive automated testing strategies across multiple projects. Build test frameworks, scripts, CI/CD pipelines, quality dashboards, and containerized test environments using Java, Python, Bash, Docker, and Kubernetes. Define API, UI, integration, regression, and end-to-end testing approaches. Mentor engineering teams on Agile quality practices and integrate AI agents, MCP, prompt engineering, and intelligent automation into QA workflows.

Develop and maintain comprehensive automated testing strategies across multiple projects. Build test frameworks, scripts, CI/CD pipelines, reporting dashboards, and containerized test environments using Java, Python, Bash, Docker, and Kubernetes. Evaluate API, UI, integration, regression, and end-to-end testing needs while mentoring engineering teams on Agile quality practices. Integrate AI agents, MCP, prompt engineering, and intelligent automation to improve testing efficiency and code quality.

Develop and maintain automated testing frameworks and scripts across multiple projects. Define test strategies, architectures, and coverage for API, UI, integration, regression, and end-to-end testing. Build CI/CD tooling, quality dashboards, and test environments using Java, Python, Bash, Docker, and Kubernetes. Mentor teams on Agile quality practices and integrate AI agents, MCP, and intelligent automation into quality workflows.

Develop scalable frontend applications for AI-powered Contact Center and Unified Communications products. Build reusable Angular or React interfaces, integrate REST and GraphQL services, optimize performance and accessibility, and contribute to frontend architecture and subsystem design. Collaborate with designers, product managers, backend engineers, and AI teams, while participating in code reviews, Agile ceremonies, testing, troubleshooting, documentation, and technical improvements.

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.

Design and implement large-scale browser-based rendering infrastructure to execute and extract structured content from JS-heavy web apps. Improve rendering quality, performance, cost, and throughput at internet scale and productionize rendering research.

Build browser infrastructure and tooling to provide reliable, large-scale web access for an agent-native search platform. Research website-browser interactions, fingerprinting, client verification, and browser networking. Implement instrumentation, observability, debugging tools, and translate findings into production systems at internet scale.

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.

Design, develop, and maintain secure, scalable blockchain platforms, distributed systems, backend services, APIs, microservices, and cloud-native applications. Build blockchain integrations, improve system performance and reliability, lead architecture discussions, drive automation and testing, troubleshoot distributed environments, conduct code reviews, and mentor engineers. Collaborate with product, architecture, security, and operations teams while promoting engineering best practices.

Build and own React Native features for Kraken’s consumer mobile app, from product discovery through launch, measurement, and iteration. Partner with Product and Design to create responsive, trustworthy financial experiences using dynamic or real-time data. Guide development for a new Asian-market app, including regional UX, connectivity restrictions, vendors, and telemetry. Contribute to architecture, performance, reliability, code reviews, and product engineering standards.

Lead the roadmap and technical vision for CI/CD and release infrastructure. Identify and resolve bottlenecks and security risks, design scalable release gates, direct engineers through complex cross-organizational projects, manage high-severity incidents, and establish engineering standards. Remain hands-on through code reviews, prototyping, debugging, mentorship, and technical communication while primarily delivering impact through team leadership.

Design and build the on-prem software stack for ModelVault appliances: containerized inference engines, model integration (LLMs/vision), deployment tooling, CLIs/GUI/APIs, OS and GPU setup, remote updates, telemetry, and collaborate with customers and founding team to iterate and scale the engineering org.

Build core components of a diagnostic and personalization platform: backend data pipelines, frontends, services for genomic data ingestion, ML model integration, APIs, and cloud infrastructure. Collaborate with product and ML teams, iterate on prototypes and MVPs, and make architectural decisions supporting scalability and reliability.

Provides local IT support for the Lisbon office, including employee onboarding, hardware provisioning, workstation and conference-room support, inventory, procurement, and troubleshooting. The role also develops software infrastructure skills through scripting, Ansible automation, GitLab CI/CD, AWS support, Linux administration, and documentation. The position suits an early-career professional who can work independently onsite while collaborating with distributed senior engineers.

Build and ship backend features for enterprise Coder deployments, including database migrations, observability, reporting, auditing, security, scalability, and reliability improvements. Investigate production issues, resolve operator problems, document designs, participate in code reviews and RFC discussions, and join on-call rotations. The role requires professional Go development, concurrency knowledge, SQL expertise, debugging ability, and strong communication.

Develop and maintain frontend features for business-to-business applications using React, TypeScript, Blazor, and related technologies. Contribute to JavaScript/TypeScript and C#/.NET applications, integrate APIs, build reusable UI components, write tested code, troubleshoot issues, participate in code reviews, and collaborate with Product, Design, and Engineering teams while growing technical ownership.