Top Software Engineer Jobs in Portugal

The role involves designing and evolving core systems at LiveKit, implementing resilient architectures, and building tools to enhance system reliability and developer speed. Strong distributed systems experience and programming skills are essential.

Design, implement, and operate low-latency, highly available distributed control, data, and observability systems. Build region-spanning architectures, libraries, protocols, and tooling; diagnose and harden critical paths using metrics, tracing, testing, and real traffic; and shape platform capabilities around identity, scheduling, observability, and distributed state management.

Develop and maintain automated unit, integration, and stress tests for frontend and backend systems. Build internal testing tools, perform white-box testing and code reviews, investigate failures using logs and stack traces, support test environments, collaborate in Scrum ceremonies, and help improve CI/CD pipelines and scalable test suites.

As a Senior Software Engineer, you will develop and manage a MongoDB solution on various platforms, ensuring reliability and security while contributing to a small team focused on impactful projects.

The Senior Software Engineer will build integrations with external APIs, optimize code performance, and maintain testing protocols. A focus on backend development is essential.

Build and improve Restream’s web interfaces and user-facing features for the AI Clips team. Design UI and business logic, collaborate with product designers, participate in code reviews, improve system reliability, and evaluate emerging technologies. The role requires strong JavaScript and TypeScript expertise, advanced React knowledge, CSS preprocessor experience, and familiarity with backend development, cloud infrastructure, containers, and continuous deployment.

Develop and maintain Angular applications using TypeScript, HTML5, and CSS3. Collaborate on design, optimize performance, and ensure cross-browser compatibility.

Develop and maintain Angular applications, implement component-based architecture, integrate APIs, conduct code reviews, and optimize performance while collaborating in an agile environment.

Design and develop user interfaces for web and mobile applications, ensuring performance and scalability while collaborating with various teams and promoting best practices.

Design and maintain user interfaces for web and mobile, develop features, integrate systems via RESTful services, and apply software best practices.

Design and develop backend services and RESTful APIs in Python, optimize databases, and implement testing strategies while collaborating with stakeholders.

Design and develop backend services and APIs using Python. Collaborate with product managers, conduct code reviews, and optimize system performance. Participate in the full software development lifecycle, implementing testing strategies.

Design, develop, and maintain scalable cloud-based software using C#/.NET and Azure. Build APIs, backend services, database integrations, and messaging solutions while contributing to cloud migration, architecture, testing, automation, DevOps, and continuous delivery. Analyze requirements, shape technical solutions, collaborate with architects and product stakeholders, and mentor junior engineers within an Agile team.

Leads architectural and code-level performance engineering for Elasticsearch, owning optimization initiatives from design through production. Develops performance models, profiles distributed systems, identifies bottlenecks, builds benchmarks and regression detection, and drives automation through AI-assisted optimization harnesses. Collaborates across teams, mentors engineers, and improves scalability and predictability across stateful and serverless architectures.

Leads architecture and hands-on development for scalable, secure cloud products. Translates product requirements into technical design documents, evaluates trade-offs, estimates work, and guides Scrum teams in breaking designs into actionable stories. Develops production code using Java and Kotlin, contributes across Angular-based applications, mentors engineers through reviews and pairing, and establishes engineering best practices. The role also involves designing AWS microservices and working with relational and NoSQL databases.

Design, build, and maintain web-based game frontends and backend services. Lead technical direction, enforce code quality, mentor engineers, implement IaC and CI/CD, and ensure production reliability and observability.

The Senior Software Engineer will ensure product installations meet client requirements, develop custom interfaces, and support integrations using various technologies while mentoring peers.

Build and modernize cloud-first, data-focused backend microservices using Java and Spring Boot. Design scalable APIs, optimize SQL and stored procedures, integrate with cloud and legacy systems, deploy to Kubernetes with Helm, collaborate with data teams, and ensure testing, CI/CD, and production reliability.

Senior full-stack product engineer owning features end-to-end: research customer problems, write product specs and wireframes, design and implement frontend and backend solutions, collaborate with product, design and infra, and ship high-quality, scalable features for tens of thousands of users.

Senior full‑stack product engineer owning large product areas end-to-end: research, specs, wireframes, implementation, and shipping reliable features. Collaborate with product, design, and infra; balance speed and quality; solve ambiguous customer problems and build scalable abstractions.

Build and scale the internal developer platform: create tools, services and automation (CI/CD, canaries, feature flags, access workflows) using IaC (Pulumi/Python) and Kubernetes to enable safe, fast shipping. Drive platform initiatives, mentor teams, lead AI tool adoption for engineering, participate in on-call and design/code reviews, and ship major improvements across the organization.

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

Lead the delivery of scalable software solutions to improve patient outcomes in primary care. Collaborate across teams to define requirements and drive impactful changes.

Build and maintain developer-facing integrations for Elastic's AI platform: MCP server, agent skills, CLI, and third-party integrations. Develop in Go (and Rust), design tooling, ensure correctness through evals, collaborate with product and partners, and improve developer experience across ecosystems.

Design, implement, and optimize Elasticsearch core storage and query engine for logs and metrics. Lead architectural improvements, resolve performance bottlenecks, mentor engineers, drive cross-organizational initiatives, triage community issues, and write idiomatic modern Java for high-performance distributed systems.