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Top Software Engineer Jobs in Barcelona

Reposted 11 Days AgoSaved
In-Office or Remote
206 Locations
30-70 Hourly
Mid level
30-70 Hourly
Mid level
HR Tech • Other • Professional Services
Train large-language models (LLMs) by evaluating, ranking, repairing, and refactoring code. Provide detailed feedback and maintain the RLHF pipeline.
Top Skills: Rust
Reposted 11 Days AgoSaved
In-Office or Remote
206 Locations
30-70 Hourly
Mid level
30-70 Hourly
Mid level
HR Tech • Other • Professional Services
The Software Engineer will analyze, rank, and improve AI-generated code, providing feedback for reinforcement learning in a remote role.
Top Skills: C#
Reposted 11 Days AgoSaved
In-Office or Remote
206 Locations
30-70 Hourly
Mid level
30-70 Hourly
Mid level
HR Tech • Other • Professional Services
The role involves training large-language models to improve code generation, reviewing and editing AI-generated code, and providing feedback for reinforcement learning refinement.
Top Skills: C++
Reposted 11 Days AgoSaved
Remote or Hybrid
5 Locations
Senior level
Senior level
Pet
The Software Engineer role involves developing high-quality web and mobile applications, collaborating with cross-functional teams, and ensuring core engineering practices while maintaining a strong user focus.
Top Skills: DjangoPythonReactReact Native
12 Days AgoSaved
In-Office
Barcelona, Cataluña, ESP
Senior level
Senior level
Blockchain • Fintech • Payments • Software • Financial Services • Cryptocurrency
The Senior Front End Software Engineer will lead UI development for a financial platform, mentor junior staff, and collaborate on a component library using modern frameworks and technologies.
Top Skills: AngularElixirEmberPhoenixReactRuby On RailsStencil.JsVueWeb Components
12 Days AgoSaved
In-Office
2 Locations
Mid level
Mid level
Information Technology • Software
The AI Software Engineer will develop and improve Joko's AI shopping assistant, focusing on architecture, evaluation, data management, and personalized user experiences, while collaborating with product teams.
Top Skills: LangchainLanggraphLlm Apis
Reposted 2 Days AgoSaved
Remote
Spain
Senior level
Senior level
Artificial Intelligence • Big Data • Internet of Things • Virtual Reality
The Senior AI & Computer Vision Software Engineer will develop innovative, production-ready AI solutions, prototype quickly, and bridge research to production while sharing knowledge with the team.
Top Skills: AWSAzureComputer VisionDeep LearningGCPMlopsPythonUnityUnreal
Reposted 2 Days AgoSaved
Remote
Spain
Junior
Junior
Artificial Intelligence • Big Data • Internet of Things • Virtual Reality
Looking for a Software Engineer skilled in AI and Computer Vision to innovate and develop reliable software solutions in a collaborative Agile environment.
Top Skills: GitPythonPyTorch
Reposted 2 Days AgoSaved
Remote
Spain
40K-55K Annually
Mid level
40K-55K Annually
Mid level
Artificial Intelligence • Mobile • Software
The Software Engineer will design, build, and deploy software for ML and AI tasks, ensuring scalability and security while collaborating with cross-functional teams and automating testing processes.
Top Skills: C++Ci/CdDockerGitLinuxPython
12 Days AgoSaved
In-Office or Remote
2 Locations
Mid level
Mid level
Information Technology • Software
As a Growth Software Engineer, you will scale user and business growth through experimentation, data-driven development, and cross-functional collaboration, particularly in user engagement and retention.
Top Skills: Ab TestingData-Driven DevelopmentPrototypingSoftware Engineering
Reposted 12 Days AgoSaved
In-Office or Remote
206 Locations
30-70 Hourly
Mid level
30-70 Hourly
Mid level
HR Tech • Other • Professional Services
As a Software Engineer, you will help train large-language models in code evaluation and training, focusing on Ruby, with an emphasis on code review and improvement.
Top Skills: Ruby
Reposted 12 Days AgoSaved
In-Office or Remote
206 Locations
30-70 Hourly
Mid level
30-70 Hourly
Mid level
HR Tech • Other • Professional Services
Train large-language models to improve code quality by comparing snippets, providing feedback, and refining AI-generated code. Requires strong communication skills and attention to detail.
Top Skills: C
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Reposted 12 Days AgoSaved
In-Office or Remote
206 Locations
30-70 Hourly
Mid level
30-70 Hourly
Mid level
HR Tech • Other • Professional Services
Responsible for training large-language models by reviewing, ranking, and improving AI-generated code. Requires strong software engineering skills.
Top Skills: Java
3 Days AgoSaved
Remote
14 Locations
Mid level
Mid level
Blockchain • Financial Services • Cryptocurrency • Web3
As a Software Engineer, you will build and maintain scalable, secure backend systems for integrating various blockchains, ensuring client fund safety and optimizing databases.
Top Skills: DockerEthereumGitGnu/LinuxKubernetesNode.jsRustSolidityTypescript
Reposted 3 Days AgoSaved
Easy Apply
28 Locations
Easy Apply
20K-90K Annually
Mid level
20K-90K Annually
Mid level
Cloud • Software
The Lead Golang Software Engineer develops server solutions, leads technical designs and code reviews, mentors colleagues, and ensures the quality of engineering practices in the Commercial Systems unit.
Top Skills: AICloudData ScienceGoIotPerformance EngineeringSecuritySoftware EngineeringUbuntu
Reposted 3 Days AgoSaved
Easy Apply
Remote
28 Locations
Easy Apply
Mid level
Mid level
Cloud • Software
The Python Software Engineer will develop and maintain test automation tools for hardware certification and improve Linux testing methods.
Top Skills: CCheckboxLinuxPythonUbuntu
Reposted 3 Days AgoSaved
Easy Apply
In-Office or Remote
33 Locations
Easy Apply
20K-20K Annually
Mid level
20K-20K Annually
Mid level
Cloud • Software
You will build and maintain container images, automate CI/CD processes, engage with the community, and mentor junior team members in a collaborative environment.
Top Skills: Concourse CiDockerGithub ActionsGoJenkinsKubernetesPython
Reposted 3 Days AgoSaved
Easy Apply
28 Locations
Easy Apply
Senior level
Senior level
Cloud • Software
Lead Python Software Engineer responsible for developing solutions, collaborating on designs, mentoring team members, and enhancing engineering practices.
Top Skills: AirbytePythonRangerTemporalTrino
Reposted 3 Days AgoSaved
Easy Apply
Remote
28 Locations
Easy Apply
Mid level
Mid level
Cloud • Software
Develop and enhance dqlite, a distributed SQLite database, including debugging, implementing features, and engaging with the open source community.
Top Skills: CGoRaft
Reposted 3 Days AgoSaved
Remote
Spain
Mid level
Mid level
Information Technology • Consulting
The role involves implementing and administering CPQ solutions, configuring pricing strategies, and integrating CRM platforms like Salesforce or Microsoft Dynamics with ERP systems.
Top Skills: AWSCpqErpFirebaseMicrosoft DynamicsSalesforce
Reposted 3 Days AgoSaved
Remote
Spain
Mid level
Mid level
Gaming • Sports • Esports
As a Golang Developer, you'll enhance system performance, build backend features for the Sportsbook platform, and collaborate across teams on quality strategies and testing automation frameworks.
Top Skills: Azure DevopsC#Github ActionsGoJavaKafkaKubernetesMongoDBNode.jsNoSQLPostgresSQL
Reposted 3 Days AgoSaved
Remote
Spain
20K-200K Annually
Mid level
20K-200K Annually
Mid level
Cloud • Security • Software • Generative AI
The Software Engineer will develop internal tools, automate processes, and design scalable APIs to enhance revenue operations efficiency.
Top Skills: Node.jsReactTypescript
4 Days AgoSaved
Remote
13 Locations
Senior level
Senior level
Blockchain • Financial Services • Cryptocurrency • Web3
The role involves designing and implementing services in Rust and TypeScript, integrating new blockchains, and maintaining high-volume systems. Responsibilities also include security design, collaboration with teams on blockchain needs, and contributing to internal tools and documentation.
Top Skills: DockerGrafanaGraphQLGrpcKafkaKubernetesRustTypescript
Reposted 13 Days AgoSaved
In-Office
Barcelona, Cataluña, ESP
Junior
Junior
AdTech • Marketing Tech
Join a growing team as a Junior Java Software Engineer, designing and coding Java applications, participating in Agile development, and ensuring code quality through TDD.
Top Skills: DockerGitHibernateIbatisJava/J2EeJenkinsMavenOracleRestful Web ServicesSpringSQL
Reposted 13 Days AgoSaved
Easy Apply
In-Office or Remote
3 Locations
Easy Apply
Entry level
Entry level
Marketing Tech • News + Entertainment • Software
As a Junior Software Engineer, you will join the backend team, focusing on code quality, participating in team planning, and developing production-grade Python code. You'll learn Fever's tech stack and contribute to system development and improvements, while mentoring peers after your initial months.
Top Skills: AWSCeleryDjangoDockerFlaskKubernetesRabbitMQRedisRestful ApisSQL
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