Remote Backend Developer jobs open to Spain.

Spain? Yes. $$$? When they say. Stack? Before the essay.

71 openings. None older than 30 days.

Newest first

Senior Platform Engineer - Platform Metal | Spain | Remote

4 days ago
€82,988 to €99,586 per yearopen to Spain + United Kingdom + IrelandSeniorFull-time

Python · Kubernetes

Kubernetes, Terraform, Datacenter experience, Distributed systems, Go, Python, Shell, On-call rotation, Crossplane, Cluster-API, Tinkerbell, Talos, Ceph

Grafana LabsGrafana Labs is a San Francisco-based B2B observability platform specializing in open-source IT systems monitoring and data visualization for enterprises globally.

Senior Software Engineer (Backend): Crypto Payments

5 days ago
€70,000 to €110,000 per yearopen to Spain + Poland + BulgariaSeniorFull-time

Java

5 years of experience, Java, Spring Boot, Asynchronous messaging, Microservices, Financial services understanding, Crypto experience, Design patterns knowledge, Product lifecycle experience

BVNKBVNK is a UK-based fintech B2B platform specializing in stablecoin payment infrastructure, enabling businesses to send, receive, and convert currencies globally.

Software Engineer - Platform Productivity | Spain | Remote

5 days ago
€82,988 to €99,586 per yearopen to SpainFull-time

Kubernetes

Platform engineering experience, Cloud environment experience, Infrastructure as Code with Terraform/Crossplane, Kubernetes administration, Experience with observability systems, CI/CD platform management, Build and deployment automation

Grafana LabsGrafana Labs is a San Francisco-based B2B observability platform specializing in open-source IT systems monitoring and data visualization for enterprises globally.

Kernel Developer - KernelCare ELS Team

5 days ago
$80,000 to $120,000 per yearopen to WorldwideFull-time

Python

Strong C proficiency, Linux kernel development, Backporting patches, Git, GNU build tools, Building Linux kernels, Python, Go, Shell scripting, AI-assisted development tools, Intermediate English

Alex Staff AgencyAlex Staff Agency is an international IT recruitment B2B agency specializing in connecting top tech talent with companies in the IT and creative sectors, operating remotely without a fixed headquarters.

Senior Software Engineer, Backend (Card Acquisition)

6 days ago
€86,000 to €122,000 per yearopen to SpainSeniorFull-time

Python · Kotlin · AWS

4 years of experience, Python, Kotlin, AWS, MySQL, Kubernetes, Distributed systems, Technical planning, Code quality, Mentorship, On-call rotation

AffirmAffirm is a U.S.-based fintech company offering a buy now, pay later (BNPL) service that allows consumers to make purchases in installments, primarily targeting the retail sector with both B2C and B2B business models.

Senior Back End Developer (C#)

6 days ago
$100,000 to $150,000 per yearopen to WorldwideSeniorFull-time

SQL

5 years of experience, C#, Microservices architecture, AI tools usage, Architectural decision-making, Data modeling, MS SQL, Unit & integration testing, CI/CD, Web security fundamentals, Integrating LLM/AI features, Strong OOD principles, Good communication skills

Access SoftekAccess Softek is a remote-first B2B fintech company specializing in digital banking solutions and real-time payment systems for financial institutions, headquartered in an unspecified location.

Principal HPC Network Engineer (remote in the EU)

8 days ago
€80,000 to €120,000 per yearopen to WorldwidePrincipalFull-time

5 years of experience, InfiniBand, Fortinet solutions, HPC networking, TCP/IP, BGP, OSPF, VLANs, QoS, network design, network performance analysis, Linux, scripting, automation, AI/ML infrastructure, RDMA, MPI, low-latency networking

MirantisMirantis is a Campbell, California-based B2B company specializing in open source cloud computing and Kubernetes-native AI infrastructure, serving diverse sectors including automotive, healthcare, and financial services.

Member of Engineering (Agent Experience)

9 days ago
$100,000 to $150,000 per yearopen to North America + EuropeFull-time

Python

Python, Go, Agentic systems, Self-improvement loops, Backend architecture, Cross-functional leadership, Research workflows

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

Software Engineer - Cloud Images

11 days ago
salary not disclosedopen to North America + South America + Europe + Africa + Middle EastFull-time

Python · Kubernetes · Docker

Python, Linux, public clouds, containers (docker, kubernetes), devops automation, open source projects

CanonicalCanonical is a London-based B2B open-source software company specializing in Ubuntu and providing commercial support services to global enterprises in sectors like cloud, IoT, and data science.

Backend Engineer - Platform - Stacks | Sweden | Remote

11 days ago
SEK 609,985 to SEK 762,481 per yearopen to Spain + United Kingdom + Germany + Ireland + SwedenFull-time

Go · Kubernetes

1 years of experience, Golang, SaaS experience, Distributed systems concepts, Kubernetes, Infrastructure-as-code tooling, Incident response experience, Stateful systems, Reconciliation loops

Grafana LabsGrafana Labs is a San Francisco-based B2B observability platform specializing in open-source IT systems monitoring and data visualization for enterprises globally.

Backend Engineer - Platform - Stacks | Ireland | Remote

11 days ago
€81,000 to €102,000 per yearopen to Spain + United Kingdom + Germany + Ireland + SwedenFull-time

Go · AWS · Azure

1 years of experience, Golang, SaaS experience, Kubernetes in AWS/GCP/Azure, Infrastructure-as-code tooling, Stateful systems, Incident response, Reconciliation loops

Grafana LabsGrafana Labs is a San Francisco-based B2B observability platform specializing in open-source IT systems monitoring and data visualization for enterprises globally.

Backend Engineer

11 days ago
€68,000 to €96,000 per yearopen to North America + South America + EuropeFull-time

Python

Python, Distributed systems, Real-time analytical systems, AI tools usage, Fluent in English and Spanish, On-call rotation participation, Performance and reliability focus

TinybirdTinybird is a serverless real-time analytics platform headquartered in Madrid, specializing in B2B solutions for developers and data teams to build scalable analytics applications using ClickHouse.

Software Engineer III - Product Safety & Integrity

12 days ago
$92,267 to $144,201 per yearopen to North AmericaFull-time

JavaScript · PHP

1 years of experience, PHP, Javascript, Relational databases, Security principles, Abuse fighting familiarity, Cross-team objectives, User and product impact

Wikimedia FoundationThe Wikimedia Foundation is a San Francisco-based nonprofit organization providing free, multilingual educational content through its wiki-based projects, including Wikipedia, targeting a global audience.

Senior Backend Engineer, Security Controls

12 days ago
$187,937 to $208,819 per yearopen to Spain + PortugalSeniorFull-time

GraphQL · SQL · AWS

7 years of experience, EDR platform familiarity, Detection logic understanding, GraphQL backend development, SQL proficiency, Cloud platform experience (AWS, Azure, GCP), ETL pipeline development, Telemetry and API knowledge

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.

Member of Engineering (Interfaces, Full Stack)

12 days ago
salary not disclosedopen to North America + EuropeFull-time

TypeScript · React

Full-stack product engineering, TypeScript, React, Backend language proficiency, Product sense, Ability to thrive in ambiguity, Understanding of ML model workflows

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

Senior Software Engineer / Lead Software Engineer

13 days ago
¥8,000,000 to ¥12,000,000 per yearopen to WorldwideLeadFull-time

AWS

3 years of experience, C#, User-facing product development, GitHub, CI/CD understanding, Fluent English communication, Clean code philosophy, Experience with .NET Framework, Experience with AWS CloudWatch

BoostDraftBoostDraft Inc. is a legal technology company offering a B2B SaaS plugin for Microsoft Word, headquartered in Japan, focused on enhancing contract drafting and document editing for legal professionals.

Senior Backend Engineer - Databases Pyroscope | UK | Remote

16 days ago
£91,755 to £110,106 per yearopen to Spain + United Kingdom + Germany + Ireland + SwedenSeniorFull-time

Go, Distributed systems, Product sense, Operational mindset, Strong software craftsmanship, Curiosity and courage, Pragmatism, Clear communication

Grafana LabsGrafana Labs is a San Francisco-based B2B observability platform specializing in open-source IT systems monitoring and data visualization for enterprises globally.

Senior Backend Engineer - Databases Pyroscope | Sweden | Remote

16 days ago
SEK 775,444 to SEK 930,533 per yearopen to Spain + United Kingdom + Germany + Ireland + SwedenSeniorFull-time

Go, Distributed systems, Product sense, Operational mindset, Strong software craftsmanship, Curiosity and courage, Pragmatism, Clear communication

Grafana LabsGrafana Labs is a San Francisco-based B2B observability platform specializing in open-source IT systems monitoring and data visualization for enterprises globally.

Senior Backend Engineer - Databases Pyroscope | Ireland | Remote

16 days ago
€104,000 to €124,800 per yearopen to Spain + United Kingdom + Germany + Ireland + SwedenSeniorFull-time

Go, Distributed systems, Product sense, Operational mindset, Software craftsmanship, Curiosity, Pragmatism, Clear communication

Grafana LabsGrafana Labs is a San Francisco-based B2B observability platform specializing in open-source IT systems monitoring and data visualization for enterprises globally.

Senior Backend Engineer - Databases Pyroscope

17 days ago
€97,034 to €116,441 per yearopen to Spain + United Kingdom + Germany + Ireland + SwedenSeniorFull-time

Go, Distributed systems in production, Product sense, Operational mindset, Strong software craftsmanship, Curiosity and courage, Pragmatism, Clear communication

Grafana LabsGrafana Labs is a San Francisco-based B2B observability platform specializing in open-source IT systems monitoring and data visualization for enterprises globally.

Senior Backend Engineer - Databases Pyroscope

17 days ago
€83,000 to €100,000 per yearopen to Spain + United Kingdom + Germany + Ireland + SwedenSeniorFull-time

Go, Distributed systems, Product sense, Operational mindset, Strong software craftsmanship, Curiosity and courage, Pragmatism, Clear communication

Grafana LabsGrafana Labs is a San Francisco-based B2B observability platform specializing in open-source IT systems monitoring and data visualization for enterprises globally.

Senior Backend Engineer

17 days ago
salary not disclosedopen to EuropeSeniorFull-time

SQL

5 years of experience, AI engineering stack, Strong SQL, Spec-driven workflow, Judgement in AI usage, Product sense, Low-ego collaboration

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.

Federal Back-End Engineer

17 days ago
salary not disclosedopen to Spain + United States + PortugalFull-time

GraphQL · SQL · AWS

7 years of experience, GraphQL, ETL, AWS, FedRAMP, SQL, Current TS clearance, Cloud application development, Container technologies (Docker, Kubernetes)

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.

Software Engineer - (Connect Platform)

17 days ago
€50,000 to €70,000 per yearopen to EuropeFull-time

TypeScript · JavaScript

JavaScript/TypeScript, API integrations, Platform engineering, Energy sector experience, Systematic debugging, Observability improvements, Automation development, Collaboration and communication

EnodeEnode is an Oslo-based climate tech company providing B2B and B2C APIs for connecting and optimizing energy devices, targeting the global market for sustainable energy solutions.

Principal Software Engineer (AI Security)

17 days ago
salary not disclosedopen to Spain + Germany + France + India + Netherlands + Ireland + Italy + Poland + Portugal + Belgium + Malta + Romania + Ukraine + Serbia + Sweden + Norway + Finland + Denmark + Switzerland + Austria + Russia + Greece + Bulgaria + Lithuania + Czechia + Albania + Georgia + Armenia + CroatiaPrincipalFull-time

Kubernetes

Go, Kubernetes, Large-scale backend architecture, Security features for AI models, Performance analysis, API integration with SaaS/AI platforms, Microservices, Distributed systems optimization, Graph dataset handling

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

Staff Backend Engineer - Grafana Second Horizon | UK | Remote

17 days ago
£103,958 to £124,750 per yearopen to Spain + United Kingdom + Germany + Ireland + SwedenStaffFull-time

AI experience, Experience with LLMs, Building production-grade software, Cloud-native environments, Observability tools, Multi-tenant service architecture, Context ingestion and indexing, API design and implementation, Quick iteration and experimentation

Grafana LabsGrafana Labs is a San Francisco-based B2B observability platform specializing in open-source IT systems monitoring and data visualization for enterprises globally.

Staff Backend Engineer - Grafana Second Horizon | Sweden | Remote

17 days ago
SEK 878,578 to SEK 1,054,294 per yearopen to Spain + United Kingdom + Germany + Ireland + SwedenStaffFull-time

Production-grade software, AI technologies, LLMs, Prompt engineering, Cloud-native environments, Observability tools, Multi-tenant architecture, Scalable SaaS solutions, Effective communication, Ownership and initiative

Grafana LabsGrafana Labs is a San Francisco-based B2B observability platform specializing in open-source IT systems monitoring and data visualization for enterprises globally.

Staff Backend Engineer - Grafana Second Horizon | Ireland | Remote

17 days ago
€117,600 to €141,120 per yearopen to Spain + United Kingdom + Germany + Ireland + SwedenStaffFull-time

Production-grade software, AI technologies, LLMs, Prompt engineering, Cloud-native environments, Observability tools, Multi-tenant architecture, Context management systems, Scalable SaaS solutions

Grafana LabsGrafana Labs is a San Francisco-based B2B observability platform specializing in open-source IT systems monitoring and data visualization for enterprises globally.

Senior Backend Engineer - Databases - Loki Ingest  | UK | Remote

17 days ago
£91,000 to £111,000 per yearopen to Spain + United Kingdom + Germany + Ireland + SwedenSeniorFull-time

Kubernetes

Go, Cloud software development, Kubernetes, Distributed systems, Microservices architecture, Operational experience with Grafana and Prometheus

Grafana LabsGrafana Labs is a San Francisco-based B2B observability platform specializing in open-source IT systems monitoring and data visualization for enterprises globally.

Senior Backend Engineer - Databases - Loki Ingest  | Sweden | Remote

17 days ago
SEK 775,000 to SEK 969,000 per yearopen to Spain + United Kingdom + Germany + Ireland + SwedenSeniorFull-time

Kubernetes

Go, Cloud software development, Kubernetes, Distributed systems, Microservices architecture, On-call experience

Grafana LabsGrafana Labs is a San Francisco-based B2B observability platform specializing in open-source IT systems monitoring and data visualization for enterprises globally.