Top Software Engineer Jobs in Portugal

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.

Design, implement, and maintain Java backend services using OOP and design patterns. Build infrastructure as code with Terraform, integrate Kafka and GraphQL Federation, deploy to Kubernetes on Azure, and apply TDD with unit/integration tests. Collaborate in cross-functional teams and provide technical guidance.

Develop and maintain full-stack applications using Java and Angular. Design and implement RESTful APIs and backend services, build responsive Angular UIs, write clean testable code, conduct code reviews, troubleshoot issues, and contribute to scalable microservices architecture on AWS.

Design, develop, test, and maintain scalable Java applications and RESTful APIs using frameworks like Spring/Hibernate. Collaborate on requirements, participate in code reviews, optimize performance, integrate third-party services, document solutions, and contribute to sprint planning while following agile practices and cloud/microservices architectures.

Develop and maintain full-stack applications using Java and Angular. Design and implement RESTful APIs and backend services with Spring Boot. Build responsive Angular UIs, write clean code, perform code reviews, troubleshoot issues, and contribute to scalable microservices architectures deployed on AWS.

Design, build, test, and maintain scalable Java applications and RESTful APIs. Collaborate on requirements, participate in code reviews, optimize performance, integrate third-party services, document solutions, and contribute to sprint planning while following agile practices and staying current with Java technologies.

Work on Elasticsearch distributed systems to improve concurrent consistent indexing, cluster coordination, scaling to many shards/nodes/petabytes, and troubleshoot performance or concurrency issues. Design, implement, and own high-impact features running across machines while supporting support engineers and leading multi-engineer projects.

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.

The Senior Software Engineer will focus on backend development, designing and maintaining APIs and services, collaborating on features, and enhancing integrations at Motion.

As a Staff Unity Client Engineer, you will own game features and collaborate across teams for high-quality game client development, focusing on full lifecycle responsibilities.

Join UpHill as a Senior Software Engineer to develop a decision support SaaS platform, focusing on microservices architecture, AWS infrastructure, software quality, and team collaboration.

Design and implement core Web3 protocol features and secure smart contracts in Solidity. Integrate blockchain solutions with cross-functional teams, ensure scalability and performance, stay current on EVM internals, conduct code reviews, and mentor junior engineers.

Lead the design and development of Windows desktop applications, focusing on architecture, performance, accessibility, and collaboration with cross-functional teams.

Lead the design and development of native Windows desktop applications, ensuring best practices in architecture, accessibility, and performance while collaborating with cross-functional teams and guiding full lifecycle from conception to maintenance.

Design and implement a video processing engine, develop a cross-platform rendering engine, integrate systems, and optimize performance while collaborating with other engineers.

Design and build key features for an AI coding platform, focusing on user experience and product growth in a collaborative environment.

Be the hands-on technical owner of the LiteAPI product: design, implement, and operate backend/API infrastructure, lead technical decisions, work closely with product, stakeholders, and customers, and mentor engineers while shipping high-impact features in a fast-moving startup.

Design, develop, and maintain Python and Go microservices for data ingestion and processing; integrate backend services with BigQuery and cloud data platforms; implement REST APIs; build scalable data processing pipelines using Apache Beam and Dataflow; test and troubleshoot distributed systems; review designs, estimate work, mentor junior developers, and drive performance and reliability improvements.

Develop core backend components for a blockchain network, focusing on reliability and scalability, mainly using Rust. Ensure code quality through testing and debugging.

As a Software Engineer at SingleStore, you'll own projects end-to-end, develop new features, enhance performance, and work collaboratively in a fast-paced environment.

Lead software development and integrations while providing technical leadership, implementing SDLC practices, managing teams, and ensuring compliance with security and operational standards.

Lead design and implementation of core backend services for high-performance distributed systems. Own technical decisions, build for scale, write well-tested code, use modern practices (BDD/TDD), collaborate cross-functionally, conduct code reviews, and produce internal documentation.

The Senior Software Engineer will design and develop high-quality web and mobile applications, ensuring code quality while collaborating with product teams and mentoring junior engineers.

As a Senior Software Engineer, you will focus on backend development using C# and contribute to improving our MES platform through scalable software solutions.