Top Software Engineer Jobs in Lisbon

Build and ship end-to-end features and agentic automations for North, Cohere's AI workspace for finance. Integrate financial data sources, enforce data isolation and RBAC, collaborate with Product/UX/ML/Sales, work with finance customers, ensure reliability/security/auditability, and iterate on platform capabilities using AI where appropriate.

Collaborate with product teams to optimize functionality, ship backend services using Kotlin, and enhance user experience through better APIs and systems design.

The role involves improving Paddle's developer experience by managing backend services, API practices, and SDK development using Go and AWS. You'll collaborate with cross-functional teams to shape user experience and stability in production systems.

The role involves designing and implementing features, debugging, maintaining documentation, and collaborating with the community in the Mir graphics stack.

Build and scale Base360.ai: design APIs, services, and cloud-native infrastructure; implement event-driven automations, AI-powered workflows, and integrations (Airbnb, Stripe, Twilio, OpenAI). Own projects end-to-end to automate operations, improve pricing and guest experiences, and enable global scaling.

Build and maintain North's Agents & Automations platform: design and ship frontend and backend features, execution engine, integrations, debugging, observability, evaluation, and feedback systems to enable reliable AI-powered workflows.

Design, operate, and optimize a large-scale distributed architecture and microservices. Troubleshoot production issues and improve API gateways, ensuring system reliability and performance. Engage in CI/CD improvements and contribute to service decoupling.

Design, build, and maintain backend microservices. Write scalable, maintainable code, collaborate cross-functionally to deliver features, improve service performance and resilience, and troubleshoot complex customer-reported issues.

The Senior Software Engineer will enhance Dashlane's Web Platform quality and performance, implement testing frameworks, drive AI integration, and mentor teams.

The Senior Software Engineer will enhance Dashlane's Web Platform reliability and performance, focusing on quality, security, and team collaboration while integrating AI tools.

Responsible for developing and maintaining backend services with a focus on REST APIs, collaborating with a team, and ensuring code quality.

Design, build, test, deploy and maintain scalable, resilient backend microservices for high-traffic marketplace verticals (Demand, Supply, Fulfilment). Collaborate cross-functionally, improve product quality, and ensure APIs and databases meet availability and latency goals.

As a Backend Software Engineer, you'll design, develop, and improve backend services within a growing Agile team, focusing on high availability and customer satisfaction.

Software Engineer responsible for developing and improving features in a fast-paced environment. Involves collaboration across teams and ownership of projects throughout their lifecycle.

Build end-to-end AI-first features for a benefits platform, working across frontend (React/TypeScript) and backend (Python/FastAPI/SQLAlchemy). Ship production code, integrate ML components (LLMs, recommenders, RL), maintain CI/CD and cloud deployments (GCP preferred), collaborate with product/design, write tests and documentation, and participate in peer review and iterative development.

As a Senior Software Engineer, you will design, develop, and maintain full-stack applications using Angular and Java, manage cloud deployments, and collaborate with teams to improve software solutions.

The Senior Full-Stack Software Engineer will design and develop scalable applications, mentor juniors, and support production systems while working with various technologies, including AWS and Docker.

Lead optimization of concurrent systems, scale backend microservices, and collaborate with developers and engineers on deployment for retail solutions.

Build ML prototypes and data pipelines, collaborate with researchers and product engineering to integrate models into Fusion, containerize and deploy applications, implement best practices, and document architectures to accelerate research-to-production workflows.

Implement and optimize EVM-compatible features, reduce gas usage, develop and test smart contracts, collaborate on Ethereum infrastructure, and provide technical support.

Develop and optimize Soroban smart contracts and integrate anchor services on the Stellar network for cross-border payment solutions. Collaborate with cross-functional teams, test and debug smart contracts, document development processes, provide technical support, and stay current with blockchain and payments technology trends to ensure secure and efficient implementations.

Build and maintain high-security mobile wallet apps using React Native, Swift, or Kotlin. Implement biometric authentication and secure key storage, collaborate with cross-functional teams, debug performance issues, and propose UX and security improvements.

Dragonfly is seeking Software Engineers for various portfolio companies, focusing on crypto technologies. Engineers of all experience levels are needed across multiple stacks.

Seeking software engineers with at least 2 years of production backend experience, interested in crypto and blockchain technologies, for roles with portfolio companies.

The Staff Software QA Engineer leads quality initiatives, mentors team members, develops, and executes automated tests, and participates in Agile ceremonies to ensure product quality.