Remote Software Engineering and Development jobs open to Spain.

React · Node.js · Python

React, gRPC, Node.js or Python, full-stack web apps, API integrations, web performance and accessibility

EmaEma is an AI technology company specializing in enterprise automation through its Universal AI Employee platform, operating on a B2B model and focused on enhancing workflows for businesses.

Go

Shipped LLM/agent features to 10k+ users, Golang backend, RAG and tool calling, LLM evals, 1 year Web3 preferred

Trust WalletTrust Wallet is a leading B2C multi-chain, non-custodial cryptocurrency wallet enabling users to manage over 10 million digital assets, headquartered remotely with a global user base.

TypeScript · JavaScript · Python

Senior+ engineer, TypeScript/JavaScript or Python, Codex/Claude Code/Cursor use, English B2+, 10-20 hrs/week

G2iG2i connects companies with software engineers and AI-training specialists for contract work.

TypeScript · JavaScript · Python

Senior+ engineer, TypeScript/JavaScript or Python, Codex/Claude Code/Cursor use, English B2+, 10-20 hrs/week

G2iG2i connects companies with software engineers and AI-training specialists for contract work.

TypeScript · JavaScript · Python

Senior+ engineer, TypeScript/JavaScript or Python, Codex/Claude Code/Cursor use, English B2+, 10-20 hrs/week

G2iG2i connects companies with software engineers and AI-training specialists for contract work.

TypeScript · JavaScript · Python

Senior+ engineer, TypeScript/JavaScript or Python, Codex/Claude Code/Cursor use, English B2+, 10-20 hrs/week

G2iG2i connects companies with software engineers and AI-training specialists for contract work.

React

3+ years mobile/web DevOps, GitHub Actions and Expo/EAS, React Native, App Store and Play releases, Supabase

G2iG2i connects companies with software engineers and AI-training specialists for contract work.

AWS · Azure · GCP

Security engineering team management, AppSec/vulnerability management, AWS/GCP/Azure, Kubernetes, OSS and SaaS security

Grafana LabsGrafana Labs builds Grafana Cloud and develops open-source observability projects including Grafana, Loki, Tempo, and Mimir.

TypeScript · Node.js · PHP

TypeScript/Node.js, PHP/Laravel, Stripe & PayPal integration, AWS, on-call rotation

ThriveCartThriveCart provides cart, checkout, affiliate management and course-hosting tools that help creators, coaches and online businesses sell digital products.

TypeScript · Node.js · PHP

6+ years engineering, 1-2 years as lead, TypeScript/Node.js, PHP/Laravel, shipped AI product features

ThriveCartThriveCart provides cart, checkout, affiliate management and course-hosting tools that help creators, coaches and online businesses sell digital products.

Python

Python, End-to-end ownership, Client-facing communication, Full-stack development, Cloud infrastructure, AI-powered development, Production-minded development, Business thinking, Self-management, Timezone flexibility

AE StudioAE Studio is a custom software development and design agency specializing in AI integration and data science, operating as a B2B provider for clients ranging from startups to Fortune 10 companies.

Python · SQL

5 years of experience, Production ML model deployment, Python, SQL, Real-time data pipelines, Ad tech experience, Big data solutions, Model evaluation and optimization, Cross-functional collaboration, Experimentation frameworks, Kedro, PyTorch, Databricks

Python · Java · Kubernetes

10 years of experience, Java, Python, gRPC, Protobuf, Kubernetes, Terraform, Kafka, Automated telemetry design, SLO definition, Technical writing, Async communication, Curious problem solver

TypeScript · JavaScript · Node.js

5 years of experience, JavaScript, TypeScript, Node.js, AWS, AI application patterns, LLM-powered features, AI observability, Production AWS, REST/API design, Ownership mindset, English B2

WildixWildix is a Tallinn-based B2B UCaaS provider specializing in AI-powered VoIP and collaboration solutions for businesses across 135+ countries.

5+ years backend/AI systems, LLM inference, APIs/distributed systems; also eligible in Cyprus and Hungary

KrakenKraken is a financial platform where individuals and institutions trade crypto, stocks, ETFs, and futures.

AWS · Azure

2 years of experience, MuleSoft Anypoint Platform, API design, Integration Design patterns, Microservices architecture, Public cloud experience (AWS/Azure), Non-profit sector experience, Excellent debugging skills, Strong communication skills

fusionSpanfusionSpan is a Rockville, MD-based B2B technology consulting firm specializing in Salesforce implementations and managed services for nonprofits and membership organizations.

Big Data, Data Fusion, AI, Geospatial Intelligence, OSINT, Technical leadership, Startup mindset, Engineering culture, Product strategy alignment, Complex systems architecture, Data-intensive systems, Technical decision-making, Engineering execution improvement, AI integration in engineering

TCR Tech Research LimitedTCR Tech Research Limited is a Limassol-based B2B PaaS provider specializing in data management and AI solutions for civilian protection and intelligence, serving global markets.

Unity, AI focus, Social gaming

Swift

5-10+ years iOS, Swift/SwiftUI/UIKit, 4h overlap 14:00-21:00 UTC, US state/EOR work authorization limits

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.

TypeScript · JavaScript · Vue

5 years of experience, JavaScript, TypeScript, Vue.js, PHP, RESTful APIs, Mobile-first web experiences, Cross-platform integration, Accessibility, Performance optimization, Self-driven delivery, Knowledge sharing

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.

Open-source engineering, full-stack/API design, SDKs ideal, technical writing

ElevenLabsElevenLabs builds AI voice, conversational-agent, creative-media, and developer API products.

TypeScript · Java · Go

5 years software, TypeScript/C# or Java/Rust/Golang, business logic, 3h EST overlap, 35h/week overseas

VelixoVelixo is a Montreal-based B2B SaaS provider specializing in Excel-based reporting and automation solutions for ERP systems, serving a global market across various industries.

Swift

iOS SDKs in Swift/Obj-C, performance-sensitive code, OpenTelemetry instrumentation

Grafana LabsGrafana Labs builds Grafana Cloud and develops open-source observability projects including Grafana, Loki, Tempo, and Mimir.

Swift

iOS SDKs in Swift/Obj-C, performance-sensitive code, OpenTelemetry instrumentation

Grafana LabsGrafana Labs builds Grafana Cloud and develops open-source observability projects including Grafana, Loki, Tempo, and Mimir.

Swift

iOS SDKs in Swift/Obj-C, performance-sensitive code, OpenTelemetry instrumentation

Grafana LabsGrafana Labs builds Grafana Cloud and develops open-source observability projects including Grafana, Loki, Tempo, and Mimir.

Python · Java · Go

First degree in 2025/26, STEM, Linux, Python/Rust/C++/Golang/JS/Java, international travel 2x/year

CanonicalCanonical develops Ubuntu and open-source infrastructure software, with commercial support for organizations deploying it.

TypeScript

Autonomous coding agents, developer platform/CI, secure sandboxes, agent evaluation, TypeScript monorepos preferred

n8nn8n is an open workflow and AI orchestration platform with 500+ integrations.

AWS · GCP

Identity/MDM automation at remote firm, AWS or GCP security, SOC 2 or ISO 27001, vulnerability/access reviews

MazeMaze is an AI-first user research platform for research, product and marketing teams.

8+ years engineering, 4+ years managing 8+ engineers, production AI features, Claude Code and Cursor, CET/CEST

SecfixSecfix automates security compliance workflows and evidence collection to help European businesses attain and maintain certifications such as ISO 27001.

Python

Python, Honeypot systems, PoC validation, Vulnerability reporting, Exploit detection techniques, Automation bias, Virtual machines, Integration of intelligence sources, Original vulnerability research, Detection engineering

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.