Remote Software Engineering and Development jobs open to Spain.

Rust

Distributed backend services, Realtime streaming systems, Rust or Go, Financial data experience, Debugging across service boundaries, AI-assisted development, Designing systems for data ingestion and processing

DuneDune is a remote-first B2B SaaS platform specializing in multi-chain crypto data analytics, empowering developers and investors with insights into blockchain ecosystems.

Python · GCP

5 years of experience, Python, Bash, Data pipelines, Large-scale data processing, Cloud infrastructure, GCP, Terraform, Web crawlers, Audio processing

SpeechifySpeechify is an AI-powered text-to-speech SaaS platform headquartered in the US, focusing on accessibility and productivity for a global audience.

Python · GCP

5 years of experience, Python, Bash, Data pipelines, Large-scale data processing, Cloud infrastructure, GCP, Terraform, Web crawlers, Audio processing

SpeechifySpeechify is an AI-powered text-to-speech SaaS platform headquartered in the US, focusing on accessibility and productivity for a global audience.

TypeScript · Python · Kubernetes

Go, TypeScript, Python, Cloud-native security, Kubernetes, Automating security processes, ISO 27001, SOC 2, PCI DSS, NIST, GDPR, Interpersonal communication

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

TypeScript · Python · Kubernetes

Go, TypeScript, Python, Cloud-native security, Kubernetes, ISO 27001, SOC 2, PCI DSS, NIST, GDPR, Automating security processes, Interpersonal skills

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

Java · GCP

Leading data or backend engineers, large-scale data pipelines, CET/GMT hours; GCP, BigQuery, Scala or Java valued

SpotifySpotify is an audio streaming service that offers music, podcasts and audiobooks to listeners worldwide.

Salesforce

4+ years Salesforce development, Apex, Lightning Web Components, Platform Developer II cert, English and Spanish

NuvolarNuvolar is a Barcelona-based B2B digital innovation consulting firm specializing in cloud-based Salesforce applications and data engineering solutions for various industries, including healthcare and e-commerce.

Python · Kubernetes

8 years of experience, GPU cloud architecture, InfiniBand subnet management, RoCEv2 Ethernet designs, Data center network design, Kubernetes networking for AI, Multi-tenant isolation techniques, Linux networking expertise, Programming in Python or Go, Customer-facing solutions architect experience, Research and prototype emerging AI networking technologies

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.

Python

Published Python library maintenance, strict typing, asyncio, Python packaging, open source maintainer work

SupabaseSupabase is a Postgres development platform providing databases, authentication, storage, APIs and related developer tools.

Python · Kotlin · AWS

2+ years software engineering, backend in Python or Kotlin, AWS, MySQL, Kubernetes, on-call rotation

AffirmAffirm operates a payment network that gives consumers flexible ways to pay and helps merchants grow.

TypeScript

Good-fit criteria (not every box required): 5+ years as a Software Engineer with TypeScript/Node across backend and frontend; shipped and operated agentic or LLM-based software in production; designed agent tools, context, prompts, state, streaming and loops with a framework/runtime; used evaluations, regression sets, tracing and user feedback; evaluates emerging agent techniques; contributes product direction through data and customer contact. Hands-on LLM development is strongly preferred; knowledge of the full stack is not required.

LedgyLedgy is a Switzerland-based fintech B2B company specializing in equity management software for international teams, with offices in Zurich and London.

Angular

Several years frontend, Angular 17+, RxJS and Signals, design systems, Playwright, EU or UK work authorization

Makersite GmbHMakersite builds AI-powered product lifecycle intelligence software that combines cost, environmental, compliance and risk data to help companies design more sustainable products.

JavaScript · Rust · AWS

3 years of experience, PostgreSQL Expert, Nix packaging, Ansible, Docker, AWS, Kubernetes, C/C++ builds, Go, JavaScript, Rust, Infrastructure management, Customer engagement, Proactive problem-solving

SupabaseSupabase is a Postgres development platform providing databases, authentication, storage, APIs and related developer tools.

7 years of experience, Advanced modern C++ (C++23 or newer), Large-scale C++ codebases, Memory management, Concurrency, Performance profiling, Experience shipping software to a large consumer audience, Comfort with large build systems, Algorithms and data structures

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

Python · SQL

5+ years software/data/ML engineering, production LLM apps, semantic search, ranking metrics, Python and SQL

ParserParser provides software engineering and product-development teams for digital businesses.

Python · SQL · Azure

6+ years backend engineering, Python and REST APIs, SQL and NoSQL, CI/CD, Azure preferred

ParserParser provides software engineering and product-development teams for digital businesses.

Rust

3 years of experience, C/C++ proficiency, Security fundamentals, Debugging in multithreaded applications, Web technologies familiarity, Rust interest, Cross-platform application experience

MozillaMozilla is a family of mission-driven organizations behind Firefox, Thunderbird, open-source AI tools and public-interest technology initiatives.

Python

5 years of experience, Trust & Safety systems, Python, Distributed systems, Cloud applications, End-to-end system ownership, APIs design, Collaboration with non-technical stakeholders, Problem-solving in ambiguous situations

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

Python · Go · AWS

6 years of experience, Golang, Python, Event-driven systems, CI/CD tooling, Web application security, SAST/SCA/secret-scanning tooling, AI-assisted engineering, AWS, Kubernetes, Fintech experience, PCI DSS knowledge, Software supply-chain integrity, Policy-as-code familiarity, Threat modeling

SezzleSezzle is a payments platform offering installment plans, credit-building and rewards features to shoppers while connecting merchants to its customer network.

Python · Go · AWS

6 years of experience, Golang, Python, Event-driven systems, CI/CD tooling, Web application security, SAST/SCA/secret-scanning tooling, AI-assisted engineering, AWS, Kubernetes, Fintech experience, PCI DSS knowledge, Software supply-chain integrity, Policy-as-code familiarity, Threat modeling

SezzleSezzle is a payments platform offering installment plans, credit-building and rewards features to shoppers while connecting merchants to its customer network.

Python · Kubernetes

Python, Backend development, Software design patterns, Cloud infrastructure, Test design, Security fundamentals, Authentication/authorization experience, Kubernetes, Internal platform development

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

Product ownership, Deep system understanding, Excellent product judgement, Autonomous work, Interest in music

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

Production mobile app experience, Systems thinking, Exceptional product taste, Highly self-directed

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

TypeScript · React · Figma

React/TypeScript, Zero-to-one product ownership, Collaboration with designers (Figma), Cross-functional shipping, Pragmatic decision-making, Music or audio experience, Media-heavy interface development, Working with ML models

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

Production APIs, Product decomposition mindset, Proactive ownership, Cross-functional collaboration, Music and AI enthusiasm

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

Rust

Rust, Backend engineering, System reliability, Scalable systems, UI systems design, Data pipelines, Project leadership, Professional editing tools

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

Full-stack engineering, Frontend development, Backend services, Developer-facing products, API dashboards, User feedback utilization, Product data analysis, Experimentation for product improvement, Developer experience enthusiasm

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

Kotlin

Bachelor's + 5-10+ years related experience, Kotlin, Jetpack Compose, 4h overlap 15:00-21:00 UTC

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 · React

3 years of experience, React JS (2+ years), State management (Redux/Flux), CSS methodologies and optimization, Git (GitHub, GitLab), Typescript architecture, OOP and Functional programming design patterns, CI/CD principles, Understanding of ES6/ES7/ES8 standards

KyivstarKyivstar is a Kyiv-based B2C telecommunications provider, offering mobile, broadband, and digital services, with a strong presence in Ukraine's telecom and digital media industries.

Python · AWS · Kubernetes

AWS, Terraform or CloudFormation, Docker & Kubernetes, CI/CD pipelines, Python/Bash scripting, on-call rota

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