Fresh remote Backend Developer jobs in Spain

€70,000 to €100,000 per year

Key requirements: 5 years of experience, Data-intensive systems, AI-assisted development tools, Cloud platforms (AWS, GCP, Azure), Data pipelines, Semantic systems, Production-grade APIs, Distributed systems, Backend development (Python, Java)

PRAGMATIKE

Pragmatike is a remote tech job platform specializing in connecting companies with pre-vetted software developers and tech talent globally, operating as a B2B SaaS in the tech industry.

Remote policy: Pragmatike supports fully remote work for tech roles and hires globally, with team members located in various regions including France and the United States. Relocation support is also available for specific roles.

Backend Engineer — Ingestion

about 8 hours ago

Key requirements: High-throughput data processing, Event-driven distributed systems, Node.JS, Rust, Kafka, PostgreSQL, Multi-tenant SaaS development, Data integrity and reliability

PostHog

PostHog is a San Francisco-based B2B SaaS platform offering an integrated suite of tools for product engineers to build, test, and analyze software products, with a focus on the global market.

Remote policy: PostHog is a fully remote company with a globally distributed team, currently hiring in time zones between GMT-8 and GMT+2.

高级软件工程师, JavaScript/TypeScript (Senior Software Engineer) (Remote)

1 day ago

Key requirements: 3 years of experience, NodeJS, ReactJS, NextJS, NestJS, ExpressJS, GraphQL, MongoDB, MySQL, Selenium, Cypress, Puppeteer, Styled-components, Problem-solving

BJAK

BJAK is a Malaysia-based insurtech B2C and B2B platform specializing in vehicle insurance, recognized as the largest insurance portal in Southeast Asia, serving the ASEAN market.

Remote policy: BJAK offers fully remote roles, allowing team members to work from anywhere, with a focus on creating an inclusive and flexible work environment.

Senior Software Engineer (Backend, Typescript, Node.js, React)

Key requirements: 4 years of experience, TypeScript, Node.js, Backend expertise, Production experience, Service ownership, Microservice architecture, SQL (PostgreSQL), API design, Fintech experience, Reliability patterns

Cyclops

Cyclops is a remote-first fintech company specializing in crypto and stablecoin payment infrastructure, headquartered in the US, targeting businesses seeking efficient payment solutions.

Remote policy: Cyclops supports a fully remote work environment, hiring candidates primarily within the Central European Time zone (UTC+1).

Copy of Senior Software Engineer - Backend - Remote

Key requirements: 10 years of experience, Java, AWS, Multi-tenant SaaS applications, Microservices, Docker, Kubernetes, SQL Server, MySQL, Problem-solving skills, Analytical skills

Jitterbit

Jitterbit is a leading B2B iPaaS provider headquartered in an unspecified location, specializing in AI-powered enterprise automation and integration solutions for businesses worldwide.

Remote policy: Jitterbit is a flexible, remote-friendly company that supports remote work across various regions, allowing team members to collaborate effectively regardless of their location.

Senior Software Engineer - Backend - Remote

Key requirements: 10 years of experience, Java, multi-tenant SaaS applications, AWS services, Microservices architecture, Docker, Kubernetes, strong problem-solving skills, mentoring others, excellent communication skills

Jitterbit

Jitterbit is a leading B2B iPaaS provider headquartered in an unspecified location, specializing in AI-powered enterprise automation and integration solutions for businesses worldwide.

Remote policy: Jitterbit is a flexible, remote-friendly company that supports remote work across various regions, allowing team members to collaborate effectively regardless of their location.

Principal Backend / Platform Engineer (Cybersecurity)

Key requirements: Distributed backend systems design, Microsoft Azure, PostgreSQL, Redis, Data pipelines, Real-time processing systems, Security and privacy in system design, End-to-end architecture ownership, Cybersecurity product experience, Multi-tenant SaaS platform design, Streaming systems exposure

Janea Systems

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

Remote policy: Janea Systems supports remote work and is currently hiring for various roles, primarily focusing on candidates located in Europe.

Client Engine Software Engineer

Key requirements: 10 years of experience, C++, Design and implement complex client-side engines, Advanced algorithms (tree/graph traversal, heuristics), Concurrency and memory management, Rust exposure or willingness to learn, Declarative rule languages or query engines experience, AI-assisted tooling experience, Secure local storage solutions, Cross-platform client development

Janea Systems

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

Remote policy: Janea Systems supports remote work and is currently hiring for various roles, primarily focusing on candidates located in Europe.

Senior Software Enginer (C# / .NET)

Key requirements: 5 years of experience, C#, ASP.NET Core, Web APIs, Microservices, OAuth, JWT, Azure AD, Secure coding practices, API integrations, Logging frameworks, CI/CD pipelines

Tech Holding

Tech Holding is a Los Angeles-based B2B consulting firm specializing in professional services and managed solutions for cloud transformation and technology integration across various industries.

Remote policy: Tech Holding supports remote work opportunities and hires from various regions globally, allowing flexibility for team members to work from different locations.

Senior Backend Engineer - Workforce Verification

Key requirements: 6 years of experience, Golang, Microservices architecture, RESTful APIs, High-throughput storage, Cloud computing, NoSQL databases, Big data analytics, Machine learning services, Concurrency, Multi-threading

Socure

Socure is a U.S.-based B2B SaaS provider specializing in AI-driven identity verification and fraud prevention solutions for enterprises across financial services, e-commerce, and government sectors.

Remote policy: Socure is a fully remote organization, supporting team members across various locations, with some roles requiring in-person engagement in specific regions such as Washington, D.C.

Senior Software Engineer

Key requirements: 6 years of experience, Go, Distributed systems, Web3 experience, High-throughput API platforms, Problem-solving, Autonomous operation, Collaboration across teams

QuickNode

QuickNode is a Miami-based B2B blockchain infrastructure platform providing RPC APIs and development tools for the Web3 ecosystem, enabling developers to build decentralized applications globally.

Remote policy: QuickNode is a global remote company, hiring from various locations around the world, with team members collaborating across time zones.

Member of Engineering (Evaluations / Engineering)

Spain, North America, Europe

Key requirements: Python framework design, Distributed systems, Data pipelines, Event-driven architectures, Cloud services (GCP, AWS, Azure), Monitoring tools (Grafana, Prometheus, Datadog), Developer tooling design, ML ops experience, Data visualization platforms

poolside

Poolside AI is a Paris-based B2B SaaS company specializing in enterprise AI solutions for software development, targeting businesses globally.

Remote policy: Poolside operates as a remote-first company, hiring team members primarily from Europe and North America, with flexible work arrangements and regular in-person gatherings.

Member of Engineering (Evaluations)

Spain, North America, Europe

Key requirements: Experience with Large Language Models (LLM), Strong understanding of LLM limitations, Strong engineering background, Strong programming skills, Linux, Strong algorithmic skills, Python, Critical thinking

poolside

Poolside AI is a Paris-based B2B SaaS company specializing in enterprise AI solutions for software development, targeting businesses globally.

Remote policy: Poolside operates as a remote-first company, hiring team members primarily from Europe and North America, with flexible work arrangements and regular in-person gatherings.

Senior Software Engineer (Ruby on Rails) (Full Remote - Worldwide)

Contract

Key requirements: 5 years of experience, Ruby, Ruby on Rails, PostgreSQL, Redis, Hotwire, Tailwind CSS, Tech scale-up experience, Large-scale product experience, Strong communication skills, Ownership mindset, User-centricity, Comfort with uncensored content

EverAI

EverAI is a leading AI companionship platform based in a remote-first environment, offering Candy.AI, the world's largest AI girlfriend/boyfriend app, targeting a global B2C market with over 40 million users.

Remote policy: EverAI is a fully remote company, allowing team members to work from anywhere. We embrace a flexible hiring approach, welcoming applicants from various regions.

Senior Backend Engineer (Elixir)

$53,300 to $119,850 per year

Key requirements: Elixir, Phoenix, Postgres, CI/CD, Automation workflows, Systems thinking, Agentic workflows

Remote

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

Remote policy: Remote is a fully remote company with team members across six continents, hiring from various locations globally to support a diverse and asynchronous work culture.

Software Engineer (Go) - Auth Product

Key requirements: 5 years of experience, Go, TypeScript, Authentication systems, OAuth, OIDC, SAML, Postgres, Next.js, Technical writing

Supabase

Supabase is an open-source BaaS platform headquartered remotely, specializing in Postgres database solutions for developers in the software development industry, targeting both B2C and B2B markets.

Remote policy: Supabase is a fully remote company that hires globally, allowing team members to work from anywhere in the world. We support a distributed workforce with no physical offices.

Software Engineer (Go) - Auth

Key requirements: 4 years of experience, Go, Postgres, AWS, Kubernetes, Observability practices, Database migrations, Systems-level concerns, Technical writing

Supabase

Supabase is an open-source BaaS platform headquartered remotely, specializing in Postgres database solutions for developers in the software development industry, targeting both B2C and B2B markets.

Remote policy: Supabase is a fully remote company that hires globally, allowing team members to work from anywhere in the world. We support a distributed workforce with no physical offices.

Senior Backend Engineer

Key requirements: 7 years of experience, Perl, Go, Node.js, AI agent tooling, Product acumen, Complex data structures, Data-driven analytical skills, Project management, Mentoring engineers

DuckDuckGo

DuckDuckGo is a Paoli, Pennsylvania-based privacy technology company offering a privacy-focused search engine and browser solutions for a global audience.

Remote policy: DuckDuckGo supports remote work and hires from various locations, including the United States, Australia, and several European countries, allowing for collaboration across different time zones.

TypeScript - Software Engineer (Remote)

Key requirements: 3 years of experience, TypeScript, Strong code-review instincts, Excellent written communication, Attention to detail, Asynchronous work proficiency

G2i

G2i is a U.S.-based B2B SaaS platform specializing in connecting companies with top engineering talent, including software engineers and AI specialists.

Remote policy: G2i is a fully remote company hiring engineers for contract roles worldwide, with team members located in various regions such as LATAM, Europe, and Canada.

Apigee Engineer (Drupal), Contract

Contract

Key requirements: Apigee Edge/Hybrid/X, Drupal 8/9/10, API lifecycle management, Apigee policies management, Apigee Analytics, OpenAPI/Swagger, JavaScript, React.js, Observability tools, Agile Scrum

66degrees

66degrees is a global B2B consulting firm specializing in AI, data, and cloud solutions, helping businesses transform challenges into opportunities.

Remote policy: 66degrees embraces a flexible remote work policy, hiring from various regions globally to support its diverse delivery team.

CX Forward Deployed Engineer

Key requirements: Ruby on Rails, Go, GitLab CI/CD, Terraform, Ansible, AI systems, Technical consulting, Architecture design

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

Remote policy: GitLab is a fully remote company that hires globally, with team members located in over 65 countries. We embrace flexibility in scheduling to accommodate various time zones.

Staff Backend Engineer, SSCS: AI Governance

$120,000 to $180,000 per year

Key requirements: Backend architecture for AI governance, Auditability and compliance systems, Role-based access control (RBAC), Policy-as-code approaches, Ruby on Rails, Python for AI services, REST and GraphQL APIs, High-scale data systems, Cross-team technical leadership, Technical communication in remote settings

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

Remote policy: GitLab is a fully remote company that hires globally, with team members located in over 65 countries. We embrace flexibility in scheduling to accommodate various time zones.

Staff Backend Engineer, AST: Composition Analysis

$131,600 to $282,000 per year

Key requirements: Software Composition Analysis, Dependency scanning, Container scanning, Go, Ruby on Rails, Cloud providers (GCP, AWS, CloudFlare), Technical tradeoffs in security tooling, Asynchronous communication, Technical mentorship

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

Remote policy: GitLab is a fully remote company that hires globally, with team members located in over 65 countries. We embrace flexibility in scheduling to accommodate various time zones.

Senior Backend Engineer, SSCS: Supply Chain

Key requirements: Ruby on Rails, Go, API design, PostgreSQL, Redis, Supply chain security, Policy enforcement, Artifact signing, GraphQL

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

Remote policy: GitLab is a fully remote company that hires globally, with team members located in over 65 countries. We embrace flexibility in scheduling to accommodate various time zones.

Senior Backend Engineer, SSCS: AI Governance

$120,000 to $160,000 per year

Key requirements: Ruby on Rails, AI infrastructure, PostgreSQL, ClickHouse, REST APIs, GraphQL, Authorization concepts, Regulatory compliance, Auditability, Enterprise governance

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

Remote policy: GitLab is a fully remote company that hires globally, with team members located in over 65 countries. We embrace flexibility in scheduling to accommodate various time zones.

Senior Backend Engineer (C), Tenant Scale: Git

$120,000 to $160,000 per year

Key requirements: C, Git internals, Open source contribution, Gitaly adaptation, Go familiarity, Large-scale systems experience

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

Remote policy: GitLab is a fully remote company that hires globally, with team members located in over 65 countries. We embrace flexibility in scheduling to accommodate various time zones.

Intermediate Backend Engineer (C), Tenant Scale: Git

Key requirements: Git internals, C, Open source contributions, Gitaly, Go, Large-scale systems

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

Remote policy: GitLab is a fully remote company that hires globally, with team members located in over 65 countries. We embrace flexibility in scheduling to accommodate various time zones.

Staff Backend Engineer (Go), Continuous Delivery

Key requirements: Go, Distributed systems design, Release orchestration, Deployment automation, Docker, Kubernetes, GitOps, AI integration, Technical leadership, Async communication

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

Remote policy: GitLab is a fully remote company that hires globally, with team members located in over 65 countries. We embrace flexibility in scheduling to accommodate various time zones.

Senior Backend Engineer(Go), Continuous Delivery

Key requirements: Go, Distributed systems architecture, Release orchestration, Deployment automation, Docker, Kubernetes, GitOps workflows, Event-driven architectures, AI tools integration, Strong communication skills, Self-motivated

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

Remote policy: GitLab is a fully remote company that hires globally, with team members located in over 65 countries. We embrace flexibility in scheduling to accommodate various time zones.

Staff Backend Engineer, SSCS: Supply Chain

$120,000 to $180,000 per year

Key requirements: Ruby on Rails, Go, Software supply chain security, Architecture leadership, Technical proposal writing, Security mindset, CI/CD integration, Mentorship