Remote Software Engineering and Development jobs open to Spain.

7 years of experience, API-driven SaaS experience, Support engineering team scaling, Technical debugging skills, Headless architecture understanding, Data-driven performance management, Customer empathy culture building, Global team management

SanitySanity.io is a modern B2B content management system headquartered in an undisclosed location, serving the tech and digital media industries globally.

AWS

6 years of experience, AWS security management, SOC compliance, HIPAA compliance, HITRUST compliance, Application security, Endpoint security, Team management in remote environments, Technical communication, Security strategy development

StediStedi is a B2B and B2C company specializing in an API-first clearinghouse for healthcare and financial transactions, as well as high-performance LED lighting solutions for automotive and marine applications, with a focus on innovation and quality.

AI-assisted tools, Enterprise software development, Distributed systems, Software delivery pipelines, Building inclusive team cultures, Managing remote asynchronous workflows, Architectural guidance and technical mentorship

GitLabGitLab is a San Francisco-based DevOps platform offering B2B and B2C solutions for software development, security, and collaboration, with a global presence.

Python

Enterprise SaaS administration (1,000+ seats), Python or comparable language, Integrating LLM and SaaS APIs, Identity and access management (Okta, OAuth, SCIM, SSO), Operational discipline (intake queues, SLAs), Teaching ability for technical concepts, Clear written communication for documentation, Judgment on capability needs

KrakenKraken is a global fintech B2B and B2C cryptocurrency exchange platform, dedicated to accelerating crypto adoption and headquartered remotely with a presence in over 70 countries.

Python · Rust · Ruby

Linux build toolchains, Container images, Debian/RHEL packaging, Continuous integration systems, Shell scripting, Cloud provider experience, Ruby/Go/Python/Rust

GitLabGitLab is a San Francisco-based DevOps platform offering B2B and B2C solutions for software development, security, and collaboration, with a global presence.

2 years of experience, AI/ML understanding, Core internetworking principles, TCP/IP, DNS configurations, HTTP mechanisms, Secure tunneling technologies, Technical training facilitation, Live application proof-of-concepts, Edge security frameworks, Generative AI familiarity, French language proficiency

ZscalerZscaler is a San Jose-based B2B cloud security company specializing in SaaS solutions for zero trust architecture and secure access service edge (SASE), serving enterprise customers globally.

5 years of experience, PostgreSQL, MySQL, MongoDB, Backup and disaster recovery strategies, Production deployment support, Fluent in English and Spanish, Timezone alignment with Bogota, Troubleshooting and performance tuning

YunoYuno is a global payment orchestration platform headquartered in [location], specializing in B2B payment infrastructure that enables businesses to integrate over 1,000 payment methods through a single API.

AI-led engineering engagement, Backend engineering background, Experience managing engineers, Team building experience, System thinking, Customer engagement, Fluent English, Judgment and decision-making, Low ego

cargo.onecargo.one is a Berlin-based B2B SaaS platform specializing in air cargo management, offering tools for freight agents to streamline bookings and operations in the logistics industry.

Blockchain wallet experience, DeFi fluency, Experience managing engineers, Systems judgment, Experience integrating decentralized exchanges, Familiarity with Sui or Move, Experience leading products through growth

Mysten LabsMysten Labs is a Palo Alto-based Web3 infrastructure company specializing in the Sui Layer 1 blockchain platform, offering B2B solutions for gaming, DeFi, and NFT sectors globally.

GraphQL · Python · Rust

7 years of experience, Python, Go, Rust, Cloud platforms (AWS, Azure, GCP), Container technologies (Docker, Kubernetes), Agentic systems, SQL, Distributed systems design, Durable execution systems, Multi-tenant platform design, Third-party API integration, Database architectures (PostgreSQL, Neo4j), GraphQL backend development

Horizon3 AIHorizon3.ai is a remote cybersecurity company specializing in the NodeZero autonomous pentesting SaaS platform, serving global enterprises and federal agencies in the B2B sector.

GraphQL

7 years of experience, Agentic systems, Durable execution engine, Multi-tenant platforms, Third-party API integration, Security control planes, PostgreSQL and Neo4j, GraphQL backends, Observability tooling, Prompt injection awareness

Horizon3 AIHorizon3.ai is a remote cybersecurity company specializing in the NodeZero autonomous pentesting SaaS platform, serving global enterprises and federal agencies in the B2B sector.

Python · Kotlin · Rust

Go, Kotlin, Rust, Python, SQL, Orchestration systems, Data lifecycle management, Schema evolution, Data correctness, Stateful stream processing, Distributed systems, AI tools proficiency, Clear written communication

Ruby

3 years of experience, AI coding agents, Clear writing, Agile web development, TDD, Refactoring, Ruby on Rails, ClickHouse, MCP server design, Ad tech background

JavaScript · React · Vue

6 years of experience, .NET Core, C#, GraphQL, MongoDB, Docker, Javascript, Vue.js, React.js, AWS, Azure, Google Cloud, Microservices, Test-Driven Development, Domain-Driven Design, Web security best practices, Performance optimization, Agile methodologies

CoverGoCoverGo is a global insurtech B2B SaaS platform headquartered in Silicon Valley, specializing in no-code solutions for health, life, and P&C insurance, with a strong focus on digitizing operations for insurers and banks.

Python

Python/Django, CI/CD systems, Automated testing workflows, Observability practices, Internal tools/platforms, Engineering standards, Debugging complex issues, Technical writing, Iterative development, Collaboration in distributed teams

MozillaMozilla is a Mountain View, California-based non-profit organization that develops open-source software, including the privacy-focused Firefox browser and Thunderbird email client, targeting global consumers.

Rust

7 years of experience, Rust, Distributed systems, Security-first mindset, Network services, Asynchronous code, End-to-end ownership, Building and scaling shared systems, Debugging across the stack

KrakenKraken is a global fintech B2B and B2C cryptocurrency exchange platform, dedicated to accelerating crypto adoption and headquartered remotely with a presence in over 70 countries.

JavaScript · PHP · SQL

PHP 8, Laravel, JavaScript, CSS, HTML, Debugging, Incident response, Root-cause analysis, Relational databases, SQL, Git, CI/CD, Autonomous work, Professional English (B2+)

Intel 471Intel 471 is a Wilmington, DE-based B2B cybersecurity company specializing in SaaS-based cyber threat intelligence solutions for enterprises and government agencies worldwide.

Python · GCP · Kubernetes

C++, Python, Game engine development, Cross-platform development, Performance-critical software, Game editor extension systems, Cloud technologies (GCP, Docker, k8s), Observability tools (Sentry, Grafana), Facilitating workshops, Technical presentations

Python · Kubernetes · Docker

C++, CI automation (Gitlab), Python, Cross-platform environments, Build systems (MSBuild, gcc/make, xcode), VCS systems (svn, git), Unix/Linux systems, Docker/K8s, Technical writing

GCP · Kubernetes

Go, Kubernetes, Large-scale backend development, Microservices architecture, Performance analysis, Security product architecture, GCP services, Distributed systems optimization, API integration with SaaS applications

CyberhavenCyberhaven is a remote-based B2B cybersecurity company specializing in AI-powered data protection and advanced threat detection for organizations globally.

Rust

Rust, Interactive data visualization, Real-time applications, UI skills, Comfort with ambiguity, Great communication skills

RerunRerun is a Stockholm-based B2B open source data platform specializing in Physical AI, providing an SDK for logging and visualizing multimodal data streams.

SQL

Database performance optimization, Strong SQL, Backend engineering, Data architecture design, Lakehouse experience, Schema design for semi-structured data, Streaming ingestion experience, Migration or re-architecture track record

OscilarOscilar is a US-based fintech B2B SaaS provider specializing in AI-native risk decisioning for fraud prevention, credit underwriting, and AML compliance, serving banks and digital organizations.

Python · Java · AWS

10 years of experience, Cloud architecture, Microservices, Distributed systems, API design, Python, Java, C#, C++, AWS, Azure, GCP, Docker, Kubernetes, Data modeling, Infrastructure as code, Regulatory compliance, Technical leadership

Janea SystemsJanea Systems is a Seattle-based B2B consultancy specializing in expert software engineering solutions, focusing on AI and cloud technologies for enterprise clients globally.

AWS · Azure · GCP

AWS, Azure, GCP, Terraform, Docker, Kubernetes, Networking, TLS management, IAM, Client onboarding, Bioinformatics experience, AI fluency

SeqeraSeqera Labs is a Barcelona-based bioinformatics B2B company specializing in scalable data pipeline technologies for the life sciences industry.

AI feature shipping, Production software operation, Product conversation skills, Remote work autonomy, DevTools experience

ChecklyCheckly is a remote-first B2B SaaS platform specializing in application reliability, offering testing, monitoring, and observability solutions for engineering teams globally.

AWS · Kubernetes · Docker

Kubernetes in production, AWS at meaningful scale, Hands-on AI building, Solid o11y practices, Infrastructure as code with Terraform, CI/CD systems, Docker, Running a reliability practice, People leadership in SRE, Coaching craft and soft skills, Conflict resolution, Hiring engineers, Understanding regulated environments

Remote - Referral BoardRemote Referral Board Inc. is a fully remote HR technology company providing a SaaS platform for employee referral programs tailored to distributed teams, targeting global businesses in need of efficient hiring solutions.

AWS · Kubernetes

SRE team leadership, Kubernetes in production, AWS at scale, AI infrastructure scaling, Incident response, SLOs and error budgets, Infrastructure as code with Terraform, CI/CD systems, Observability practices, Conflict resolution in teams

RemoteRemote is a global HR tech B2B SaaS platform headquartered remotely, specializing in payroll, compliance, and employment management for businesses hiring international teams.

JavaScript · Python · GCP

5 years of experience, Cloud-native technologies (GCP preferred), Kubernetes, ArgoCD, Terraform, GitHub, Python, JavaScript, Go, Technical leadership, Internal Developer Platforms, Cost optimization

MozillaMozilla is a Mountain View, California-based non-profit organization that develops open-source software, including the privacy-focused Firefox browser and Thunderbird email client, targeting global consumers.

TypeScript · React · Python

Python, Typescript, React, API design, Platform reliability, ML/GenAI exposure

ElevenLabsElevenLabs is a Poland-based AI voice technology company specializing in advanced speech synthesis and audio solutions for a global market, operating in both B2B and B2C contexts.

Unity, Scalable architectures, Rapid prototyping, Optimisation, Live iteration workflows, Integrating new technologies, Passion for strategy games

MythwrightMythwright is a B2C video game publisher specializing in indie games across niche genres, operating primarily on Steam with no physical headquarters.