Full-stack Engineer

• Lead the design, build, and evolution of fullstack applications using React (TypeScript), Kotlin, Python, and Ruby
• Architect and develop scalable APIs and microservices deployed on AWS, Azure, or GCP
• Take ownership of complex features from design through to production and ongoing operation
• Drive architectural discussions and contribute to long-term technical strategy
• Collaborate with cross-functional teams to deliver secure, privacy-compliant features aligned with regulations (e.g., GDPR, BIPA, CCPA)
• Mentor engineers through code reviews, pairing, and technical guidance
• Improve system reliability, scalability, observability, and performance
• Partner with product and UX teams to deliver high-quality, user-centric experiences
• Champion secure coding practices and contribute to identity and cryptographic systems
• Identify and implement improvements to engineering practices, tools, and workflows

Software Engineer II

• Preparing, conducting, and evaluating training sessions and workshops on software topics-both in-house and at client sites
• Conducting technical content to international audiences with varying levels of prior knowledge
• Developing, maintaining, and continuously improving training materials and learning material in collaboration with our content management team
• Establishing and further developing train-the-trainer programs in an international setting, supporting colleagues with technical inquiries and training needs
• In consultation with your manager, you will independently develop software for projects, emulate it, and contribute to the commissioning of systems through to final acceptance
• Close collaboration with functional departments such as R&D, Engineering, Product Management, and Service

Technical Trainer – Software Developer

• Build and maintain iOS applications using Swift and SwiftUI.
• Integrate AI-powered features through backend APIs.
• Design UX patterns for AI interactions, including loading states, streaming responses, retries, and fallbacks.
• Optimize performance, memory usage, and battery efficiency.
• Capture user signals and feedback to support AI evaluation and iteration.
• Collaborate closely with backend and ML engineers on API design and system behavior.
• Maintain high App Store quality, stability, and production reliability.

iOS Software Engineer

• Build and maintain the React Native driver app: QR onboarding/consent flows, GPS/BLE data display
• Implement Mapbox GL JS features: live position overlays, zone/dwell visualization, realtime map layers
• Own frontend performance and reliability for realtime, sensor-driven UI**
• Build and maintain RESTful APIs and backend services in C#/.NET
• Support GPS/BLE positioning data ingestion pipelines
• Support telemetry ingestion and zone/dwell analytics processing
• Work within an actor-model distributed backend (built on Microsoft Orleans) designed by the tech lead

Full Stack Engineer

• Own and evolve the architecture of a distributed, actor-model backend (Microsoft Orleans) handling realtime positioning and telemetry data at scale
• Set technical direction for the .NET backend: API design, data pipelines, service boundaries
• Design the path toward multi-node Orleans clustering as the platform scales
• Review code and provide hands-on technical guidance to backend and full stack engineers
• Identify and remediate security and architectural risk areas (authentication, data handling, system hardening)
• Partner with data/telemetry and QA engineers on ingestion pipeline and analytics architecture decisions
• Advise on CI/CD, staging environment, and release practices
• Act as engineering team lead: set priorities, unblock the team, and own technical quality across the engineering group
• Coordinate closely with the Project Manager on sprint planning, delivery status, and risk/blocker escalation
• Join client calls run by the project team, speaking directly to technical progress and tradeoffs when needed
• Mentor other engineers, raising the technical bar across the team

Tech Lead – Senior Software Architect

• Build and ship full product features across frontend, backend, APIs and databases.
• Create customer and internal workflows for onboarding, accounts, payments, rewards, travel, FX, support automation, KYC and risk.
• Turn ambiguous product problems into working systems with clean UX and reliable backend logic.
• Work closely with product, design, mobile, backend and AI engineers to launch fast and improve after release.
• Build internal tools and automation that reduce manual work and help teams operate at scale.
• Own your work beyond release: monitor, debug, learn and improve.

• Design, develop, and maintain frontend software solutions.
• Focus on building scalable, reliable, and high-performance frontend applications.
• Optimize user experiences, streamline workflows, and enhance productivity.
• Develop, maintain, and advance applications and component library across Five9.
• Conduct software design and development, testing and documentation.
• Mentor other engineers and drive best practices across Five9.

Senior Software Engineer

• Build fluid, responsive user interfaces and resilient backend services for multiple platforms
• Solve complex technical problems to world-class standards
• Embedded in a team responsible for the full software delivery lifecycle
• Work on asynchronous, event-driven workflows and modern cloud-native services
• Contributing to a codebase that prioritizes performance, security, and resilience

Fullstack Developer – Next.js, Springboot

• Lead the design, development, and delivery of scalable, responsive full stack features for the Business Account portal using React, TypeScript, and GraphQL.
• Work closely with product and design teams to understand merchant needs and translate complex financial workflows into secure, end-to-end user experiences backed by reliable APIs.
• Build and maintain data-rich, high-performance interfaces for transaction feeds, balances, statements, and multi-currency views.
• Develop and maintain GraphQL schemas, resolvers, and API integrations.
• Write clean, maintainable, and well-tested code across the stack.
• Actively participate in code reviews across frontend and backend contributions.
• Identify and resolve performance bottlenecks, data inefficiencies, and production issues across the full stack.
• Stay up-to-date with the latest frontend technologies, trends, and best practices.

Senior Full Stack Engineer

• Lead the design and development of some of the most critical and technically complex services in our ecosystem, focusing on long-term, scalable, and sustainable solutions.
• Define and evolve the technical vision for multiple teams, ensuring architectural consistency, system resilience, and alignment with product strategy.
• Partner with cross-functional leaders (Product, Design, Data, etc.) to prioritize and deliver initiatives that drive business growth and improve user experience.
• Mentor and empower engineering managers and tech leads, fostering a high-performing culture focused on continuous improvement and technical excellence.
• Oversee integration efforts with third-party APIs and tools, ensuring seamless and secure connectivity across systems.
• Guide modernization of legacy systems to enhance scalability, performance, and developer experience.
• Champion operational excellence through best practices in monitoring, incident management, and system reliability.
• Create and support a collaborative, agile environment where engineers are engaged, productive, and have clear paths for growth.
• Stay close to cutting-edge technologies and global-scale challenges, driving innovation across the engineering organization.
• Live the mission: inspire and empower others by genuinely caring for your own wellbeing and your colleagues. Bring wellbeing to the forefront of work, and create a supportive environment where everyone feels comfortable taking care of themselves, taking time off, and finding work-life wellness.

Director Software Engineer – Hands-On

• Contribute to the development of event-driven microservices that process parcel and customer data to automate operational decisions across a large-scale logistics ecosystem.
• Design, build, and maintain cloud-native applications that integrate seamlessly with core enterprise platforms and operational workflows.
• Become part of a collaborative Agile team responsible for designing and delivering cloud-native applications.
• Influence architecture, improve engineering practices, and develop software that delivers real business impact in a high-availability production environment.
• Collaborate with cross-functional Agile teams to fulfill project objectives.

• Provide technical leadership to the squad.
• Guide engineers on complex solutions, ensuring development best practices.
• Conduct code reviews and define coding standards.
• Manage API governance, versioning, and contracts.
• Collaborate with Architects on technical implementation.

Tech Lead

• Desenvolver e manter aplicações web modernas, APIs e plataformas SaaS em ambientes de alta escala
• Escrever código limpo, testável e performático aplicando princípios SOLID e padrões de design
• Colaborar ativamente com Líderes Técnicos, Arquitetos, UX, QA e DevOps em squads multidisciplinares
• Definir e manter padrões técnicos para desenvolvimento front-end e back-end
• Identificar, diagnosticar e mitigar dívidas técnicas e gargalos de desempenho
• Projetar e implementar componentes reutilizáveis e contribuir para a evolução do Sistema de Design
• Garantir segurança, observabilidade e alta disponibilidade da plataforma
• Documentar APIs, componentes, decisões técnicas e fluxos de integração

Senior Fullstack Developer

• Work end-to-end on a modern, scalable platform, delivering features from UI to backend services.
• Develop and evolve backend microservices using Java and Spring Boot.
• Design and maintain RESTful APIs, ensuring clean integrations and well-defined client/server boundaries.
• Build modern web applications using React and TypeScript with a focus on reusable and scalable components.
• Collaborate with design to deliver responsive, accessible, and high-quality user interfaces.
• Work with SQL and/or NoSQL databases, ensuring performance, reliability, and consistency.
• Contribute to event-driven architectures using tools like Kafka when applicable.
• Implement testing, observability, and engineering best practices to ensure quality and maintainability.
• Own features end-to-end—from refinement to implementation, release, and monitoring.
• Collaborate closely with DevOps/SRE teams on CI/CD pipelines and operational excellence.
• Participate in architecture discussions and continuous improvement initiatives.
• Contribute to a strong engineering culture through code reviews, documentation, and knowledge sharing.

Fullstack Engineer

• Building and improving modern web applications, backend services, APIs and data models
• Working across frontend, backend and infrastructure depending on the needs of the client project
• Helping clients choose suitable technologies, architecture and delivery approaches
• Contributing to cloud environments, CI/CD pipelines, deployments and production quality
• Debugging, testing, monitoring and improving production-grade systems
• Working on products or tooling related to customer-facing services, internal platforms, identity, martech, customer support, analytics, online stores, integrations, developer tooling or SDKs
• Collaborating directly with client tech teams, business stakeholders, designers, product people and other disciplines
• Clarifying ambiguous requirements and turning them into working software
• Taking responsibility for delivery while making sure the team is supported and no one is left behind
• Using modern development practices, including openness to AI-assisted development tools and workflows

• Own features end to end — from the React interfaces operators depend on to the APIs, event-driven pipelines and data stores
• Build the operational frontend — real-time React UIs, state managed with Zustand and a fast pnpm-based toolchain
• Build AI-first by default — break problems down, write the specs and context that make agents effective
• Be accountable for correctness — review, test and harden AI-generated code
• Make the calls AI can’t — component and service boundaries, data models, state and data flow
• Keep ATLAS fast and reliable at scale — high-throughput streaming, real-time fan-out to operators
• Raise the team’s AI-first craft — set patterns and guardrails across the stack
• Work with the mission — partner with product, design and operational teams

Fullstack Developer

• Design, build, and maintain resilient frontend and backend features using React and Node.js.
• Develop our core products, including donation checkouts, embeddable widgets, and donor/partner portals.
• Architect and develop system components that scale across millions of monthly transactions.
• Write clean, well-documented, and thoroughly testable code.
• Drive architecture and technical design discussions to find elegant solutions to complex problems.
• Mentor peers by conducting thoughtful code reviews and providing constructive feedback.
• Partner with product managers and designers to clarify requirements and shape the roadmap.
• Proactively identify and resolve bugs, performance bottlenecks, and optimization opportunities.

• Help build Marley Spoon’s frontend growth experience — creating scalable, AI-enabled web journeys that help customers discover, sign up, and get started.
• Pick up a request (small to medium-sized project), clarify scope and expectations, ask the right questions to clarify intended impact vs planned features.
• Plan the technical work, understanding external dependencies and complexity of each task and independently implement the solution with a high standard for code quality.
• Serve as a frontend expert for your team, guide other engineers, share your knowledge and help them integrate AI tools effectively.
• Write readable, testable, scalable features.
• Collaborate closely with your product manager and marketing colleagues to drive up conversion. Participate in ideation sessions and contribute to creating new features.
• Work together with other teams within the department and cross-departmentally for large-scale initiatives.

• Build AI-first features end-to-end: You’ll contribute to the design, deployment, and iteration of our next-generation benefits platform features that leverage personalization, experimentation, and AI/ML methods (e.g. agents/LLMs, recommender systems, reinforcement learning) to enhance user experience in a meaningful business domain.
• Contribute across the tech stack: You’ll work in React (JavaScript/TypeScript) on the frontend and Python (FastAPI, SQLAlchemy) on the backend, shipping production-ready code and user-facing features in addition to innovative ML work.
• Live on the cutting edge of AI tooling: You’ll help push the boundary of what’s feasible with modern AI-powered software development tools (Cursor, Windsurf), keep up with the regular drumbeat of AI advances, and find new and exciting ways to build and explore new features faster.
• Participate in a fast-paced iterative environment: Collaborate closely with design, product, and beyond to deliver and iterate on impressive features and prototypes at world-class pace.
• Keep code clean and well-tested: Maintain clean, efficient, and tested code with clear documentation for both peers and future reference.
• Review, refine, and grow: Actively participate in peer reviews, CI/CD processes, and a growth-minded engineering culture, where you continuously seek to level up your technical skills.
• Be a team player: Sometimes you’ll be iterating on ML pipelines; other times you’ll be refining a frontend component or fixing a tricky bug. We need someone who’s excited about the full product journey and moving together as one.

Software Engineer, Applied AI

• Help achieve your ambitions and future-proof your business as a Dynamics 365 Technical Lead
• Develop and design Microsoft Dynamics 365 solutions
• Integrate D365 solutions with Azure Cloud services
• Lead technical discussions on architecture, development, and security
• Collaborate with team members and stakeholders

Full-stack Engineer jobs in Portugal

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Software Engineer II

Technical Trainer – Software Developer

iOS Software Engineer

Full Stack Engineer

Tech Lead – Senior Software Architect

Full Stack Engineer

Senior Software Engineer

Fullstack Developer – Next.js, Springboot

Senior Full Stack Engineer

Director Software Engineer – Hands-On

Full Stack Engineer

Tech Lead

Senior Fullstack Developer

Fullstack Engineer

Senior Fullstack Developer

Fullstack Developer

Fullstack Developer

Senior Software Engineer

Software Engineer, Applied AI

Dynamics 365 Technical Lead