Top Software Engineer Jobs in Lisbon

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.

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 and maintain developer tools across SDKs, React Email, CLI, MCP, integrations, and supporting backend services. Collaborate on APIs, compatibility, testing, releases, documentation, and shared tooling. Support developers through GitHub issues and pull requests while designing reliable interfaces, error handling, and backward-compatible experiences. The role also involves operating systems with authentication, retries, rate limits, queues, monitoring, and error recovery.

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.

Provides technical leadership for Elastic’s React and TypeScript design system and component library. Owns architecture, APIs, theming, accessibility, versioning, migration strategy, performance, and adoption across many product teams. Partners with design and engineering leadership, mentors engineers, reviews code and designs, drives documentation and developer experience, and explores AI-assisted design-to-code and accessibility workflows.

Design and deliver internal systems, Go services, APIs, data models, dashboards, visualizations, and LLM-powered workflow features. The role includes writing specifications, estimating work, code reviews, testing, documentation, security, performance, accessibility, and collaboration with nontechnical stakeholders. The engineer will handle sensitive people data, mentor colleagues, and improve team practices in a globally distributed environment.

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.

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.

Design, develop, debug, and improve Elastic’s hosted control-plane services. Lead technical designs, architecture, development practices, technical planning, and cross-team collaboration while building reliable, scalable SaaS foundations. Diagnose complex failures, prioritize fixes and features, support other engineering teams, and contribute to a distributed global engineering organization.

Build and operate production AI infrastructure powering intelligent agents at scale. Develop high-performance Rust services for model inference, orchestration, and execution; design scalable distributed systems; establish MLOps, observability, guardrails, and failure recovery; and optimize latency, throughput, reliability, and cost. Partner with agent systems and infrastructure teams to turn prototypes into hardened services serving millions of users.

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.

Develop and support scalable MES applications, reporting solutions, CI/CD pipelines, and event-driven integrations for global manufacturing operations. The role involves Java and SQL development, troubleshooting integrated systems, root-cause analysis, documentation, process improvement, and collaboration with engineering, DevOps, and manufacturing teams.

Analyze anti-bot and bot-mitigation systems, identify how websites detect and block scraping activity, and develop repeatable testing and bypass approaches. Build a greenfield agentic environment for evaluating anti-bot behavior, contribute to backend systems at scale, investigate complex incidents, and communicate findings clearly. The role requires deep web protocol knowledge, strong Node.js, TypeScript, and Python skills, scientific problem-solving, AI coding agent proficiency, and independent execution in a remote-first team.

Senior Software Engineer to design and implement C++/Python software, accelerate workloads with CUDA, develop and maintain Linux kernel modules and system services, optimize system and GPU performance, manage Linux systems, mentor junior engineers, and integrate AI technologies across products.

Staff Software Engineer responsible for designing, building, and operating distributed market data systems. The role focuses on real-time blockchain data ingestion, streaming, normalization, storage, APIs, reliability, data correctness, observability, incident recovery, and production support. The engineer will lead technical decisions, mentor teammates, translate ambiguous requirements into designs, and use AI-assisted development throughout the software lifecycle.

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 maintain scalable full-stack credit card and payment products using .NET, C#, React, JavaScript, and database technologies. Own the software development lifecycle from coding through production monitoring and continuous improvement. Collaborate with product managers, QA, and engineers; create unit and integration tests; troubleshoot issues; and translate technical solutions into business outcomes.

Owns end-to-end test strategy, designs scalable backend and UI automation frameworks, integrates automated testing into CI/CD pipelines, performs exploratory testing, and advocates for testability and reliability across engineering and product. The role requires strong programming, Kubernetes and distributed-systems knowledge, debugging ability, and cross-functional ownership in a fast-moving startup.

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.

Design, build, and operate Cloudflare application security systems, including rate limiting and web application firewall services. Lead complex technical projects, define scalable architectures, improve reliability, review code and designs, collaborate across engineering teams, and mentor other engineers. The role involves distributed systems, production monitoring, debugging, operational improvements, and occasional on-call support.

Design and develop the core vCluster Platform, focusing on Kubernetes internals, tenant isolation, container orchestration, and scalable resource-sharing systems. Build high-performance Go software, own features from technical design through release, solve complex systems-architecture problems, and contribute to open-source projects. The role requires autonomous technical leadership, active collaboration with the Kubernetes community, and experience in high-growth startup environments.

Develop and operate complex, cloud-native applications for the Altium 365 Platform. Responsibilities include building scalable infrastructure, distributed and high-load systems, APIs, data models, services, and platform frameworks. The role involves performance optimization, testing, architectural decision-making, technical governance, and influencing engineering standards across multiple teams. Engineers may also work with AI/ML-powered search, authentication, access management, databases, caching, and message brokers.

Design and build the vCluster Platform using Kubernetes internals and Go. Own features end to end from technical design through release, solve complex systems architecture problems, contribute to open-source projects, and develop scalable tenant isolation and resource-sharing solutions. The role requires autonomous technical problem solving, strong Kubernetes expertise, and participation in a high-growth startup environment.

Own the frontend architecture and production delivery of a multi-brand consumer platform built with React, Next.js, and TypeScript. Responsibilities include creating a configurable multi-brand system, owning a design system and component library, converting AI-built prototypes into production features, using AI coding agents, and ensuring high UI quality, performance, accessibility, and Core Web Vitals. The role requires autonomous end-to-end ownership and daily production coding.