Top Software Engineer Jobs in Barcelona

15 Days AgoSaved
Remote
27 Locations
157K-184K Annually
Senior level
157K-184K Annually
Senior level
Cloud • Security • Software
Lead design and implementation of an automation platform to orchestrate package creation, test generation, and image builds. Build LLM-integrated tooling, write production Go for CLIs and services, develop test generators and validation frameworks, and drive roadmap and engineering quality across a small team.
Top Skills: ApkAptBazelCliContainer RegistriesDockerGoKubernetesLinuxLlmMakeOciRpm
25 Days AgoSaved
In-Office
Sant Cugat del Vallès, Barcelona, Cataluña, ESP
Senior level
Senior level
Healthtech • Biotech • Pharmaceutical
As a Senior Software Developer/Scrum Master, you will lead the development team through the software lifecycle using Agile methodologies, design high-quality code in C#, and ensure continuous improvement while facilitating team dynamics.
Top Skills: .Net 8.0C#Entity FrameworkGitSQL ServerWpf
25 Days AgoSaved
In-Office
Sant Cugat del Vallès, Barcelona, Cataluña, ESP
Senior level
Senior level
Healthtech • Biotech • Pharmaceutical
Lead the migration of software from C# to Rust, design high-performance systems, and mentor developers while maintaining coding standards and software quality.
Top Skills: .NetAi ToolsC#Ci/CdRust
25 Days AgoSaved
In-Office
Sant Cugat del Vallès, Barcelona, Cataluña, ESP
Senior level
Senior level
Healthtech • Biotech • Pharmaceutical
Join Roche as a Senior Software Developer, driving the software development lifecycle, collaborating in Agile teams, and enhancing healthcare technology solutions.
Top Skills: .Net 8.0C#Entity FrameworkGitGitSQL ServerWpf
Reposted 15 Days AgoSaved
Remote
27 Locations
Mid level
Mid level
Information Technology • Software
As a Senior Software Engineer at Rewardful, you'll improve infrastructure, optimize performance, implement scalable solutions, and develop new features for our SaaS affiliate management platform.
Top Skills: CapybaraCi/CdCloud InfrastructureDockerGithub ActionsHerokuJavaScriptKubernetesPostgresRedisRspecRuby On RailsSidekiqTypescript
16 Days AgoSaved
In-Office or Remote
30 Locations
Senior level
Senior level
Artificial Intelligence • Cloud • Information Technology • Infrastructure as a Service (IaaS)
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.
Top Skills: BashC++CudaGpuLinuxLinux KernelPython
Reposted 25 Days AgoSaved
In-Office or Remote
Barcelona, Cataluña, ESP
Senior level
Senior level
Software
Lead architecture and implementation of platform modernization from a .NET monolith toward a unified Java/Spring stack. Design zero-downtime migration patterns, build and transition services, collaborate with product and distributed teams, implement observability with Grafana and tracing, and leverage agentic programming tools to accelerate refactoring and development.
Top Skills: .NetClaude CodeDistributed TracingGrafanaJavaSpring
16 Days AgoSaved
Remote
Spain
80K-127K Annually
Expert/Leader
80K-127K Annually
Expert/Leader
Cloud • Security • Software • Generative AI
Lead design and improvements for Elasticsearch distributed systems, focusing on scalable, performant, and resilient indexing, cluster coordination, replication, and debugging of concurrency and performance issues. Own projects end-to-end and support cross-team engineering and support staff.
Top Skills: ConcurrencyConsensus AlgorithmsDistributed SystemsJava
16 Days AgoSaved
In-Office or Remote
43 Locations
50K-75K Annually
Senior level
50K-75K Annually
Senior level
Angel or VC Firm • Artificial Intelligence • Software
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.
Top Skills: AIAPIsAWSCloud InfrastructureData PipelinesFastaGCPMachine LearningVcf
16 Days AgoSaved
In-Office or Remote
45 Locations
50K-75K Annually
Senior level
50K-75K Annually
Senior level
Angel or VC Firm • Artificial Intelligence • Software
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.
Top Skills: AnsibleAPIsAuto-Update AgentsClisContainerizationContainerized Inference EnginesCudaFine-TuningGpu ComputingGuisInference RuntimesLangchainLlamaMistralNvidia DriversOllamaRemote Update PipelinesSdxlSshTelemetryTriton Inference ServerUbuntuVllm
26 Days AgoSaved
In-Office
Barcelona, Cataluña, ESP
Senior level
Senior level
AdTech
As a Senior Software Engineer, you will design, develop, and implement features for the core products using NodeJS and Java while ensuring clean and efficient code. You will participate in monitoring deployments, collaborate in an agile environment, and contribute to technical decisions.
Top Skills: AWSDockerDocker-ComposeGitJavaJenkinsLinuxMySQLNode.js
Reposted 22 Days AgoSaved
Remote
27 Locations
Senior level
Senior level
Cloud • Software
Develop and enhance MAAS core components, improve architecture, collaborate across teams, and ensure high standards in documentation and CI practices.
Top Skills: DhcpDnsGoKvmLxcNtpPxePythonReactTftpTypescript
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Reposted 16 Days AgoSaved
Remote
5 Locations
Mid level
Mid level
Gaming
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.
Top Skills: Automated Testing FrameworksCloud PlatformsSdksUnity3D
Reposted 16 Days AgoSaved
Remote
4 Locations
Senior level
Senior level
Information Technology • Software • Cybersecurity
Join Filigran as a Senior Software Engineer to develop a scalable XTM Suite platform using TypeScript and Python. You'll focus on architecture and community engagement while innovating cybersecurity solutions.
Top Skills: PythonTypescript
Reposted 16 Days AgoSaved
Remote
Spain
57K-77K Annually
Senior level
57K-77K Annually
Senior level
Internet of Things
The role involves improving Firefox development workflows, mentoring team members, collaborating across teams, and analyzing development data.
Top Skills: AWSCircleCIDjangoDockerFastapiFlaskGCPGithub ActionsJavaScriptPythonSQL
17 Days AgoSaved
Remote
27 Locations
Senior level
Senior level
Agency • Artificial Intelligence • Blockchain • Web3
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.
Top Skills: BlockchainDefiEthereumEvmSmart ContractsSolidityTypescript
Reposted 26 Days AgoSaved
In-Office
Barcelona, Cataluña, ESP
Senior level
Senior level
Information Technology
Design, build, and maintain production-grade Go services and Kubernetes operators to provision and govern database and streaming resources across AWS and GCP. Improve scalability, reliability, automation, and developer experience for distributed systems and streaming ecosystems while collaborating with product, security, and engineering teams.
Top Skills: Apache FlinkApache KafkaAurora RdsAWSCloud SqlGCPGoKubernetesKubernetes OperatorsMicroservicesRest Apis
27 Days AgoSaved
In-Office
Barcelona, Cataluña, ESP
Senior level
Senior level
Analytics
Develop data-oriented code in Python, maintain data pipelines, perform NLP tasks, and build machine learning models to support AI solutions.
Top Skills: AWSLangchainPython
Reposted 17 Days AgoSaved
In-Office or Remote
41 Locations
80K-180K Annually
Senior level
80K-180K Annually
Senior level
Social Media
Design and implement a video processing engine, develop a cross-platform rendering engine, integrate systems, and optimize performance while collaborating with other engineers.
Top Skills: AngularC++EmscriptenFfmpegMetalNode.jsSkiaSwiftTypescriptWebassemblyWebcodecsWebglWebgpu
Reposted 17 Days AgoSaved
In-Office or Remote
28 Locations
Senior level
Senior level
Artificial Intelligence • Information Technology • Software
Design and build key features for an AI coding platform, focusing on user experience and product growth in a collaborative environment.
Top Skills: Next.JsNode.jsReactTypescript
18 Days AgoSaved
Remote
27 Locations
Senior level
Senior level
Information Technology • Software • Travel • Hospitality
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.
Top Skills: APIsGo
Reposted 27 Days AgoSaved
In-Office
Barcelona, Cataluña, ESP
Senior level
Senior level
Analytics
Design and develop scalable backend services, integrate AI capabilities, and improve existing systems. Collaborate across teams to enhance the CMC platform.
Top Skills: AWSCi/CdDjangoDockerElasticsearchJavaNest.JsNode.jsPostgresTypescript
18 Days AgoSaved
Remote or Hybrid
26 Locations
Senior level
Senior level
Healthtech • Information Technology • Software • Analytics • Consulting • Cybersecurity • App development
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.
Top Skills: Apache BeamBigQueryGoGoogle Cloud DataflowGoogle Cloud Platform (Gcp)Infrastructure As Code (Iac)MicroservicesPulumiPythonRestful ApiTypescript
Reposted 18 Days AgoSaved
In-Office or Remote
36 Locations
120K-260K Annually
Senior level
120K-260K Annually
Senior level
Blockchain • Cryptocurrency
Develop core backend components for a blockchain network, focusing on reliability and scalability, mainly using Rust. Ensure code quality through testing and debugging.
Top Skills: CC++RustZig
Reposted 19 Days AgoSaved
In-Office or Remote
28 Locations
Senior level
Senior level
Artificial Intelligence • Mobile • Software • App development
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.
Top Skills: Google Cloud PlatformGraphQLHuggingface ApiLlm ApisMaterial UiNode.jsPostgresPythonReactTrpcTypescript
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