Remote Software Engineering and Development jobs open to Spain.

Java

Java and Spring Boot backend, event-driven microservices, Kafka, real-time systems, employee contract (no B2B)

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

5 years of experience, InfiniBand technologies, Fortinet solutions, HPC networking, Network performance analysis, Linux systems, Automation scripting, AI/ML infrastructure, Low-latency networking, Infrastructure as Code tools

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.

Kubernetes

3 years of experience, NVIDIA GPU infrastructure, Kubernetes platform operations, AI infrastructure or HPC environments, InfiniBand networking, Infrastructure automation technologies, Observability platforms, Strong Linux administration, Network operations experience, Site Reliability Engineering (SRE)

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.

TypeScript · React · Angular

4+ years backend, Java or Groovy, Micronaut or Spring Boot, TypeScript with Angular or React

SeqeraSeqera develops open-source and cloud software, including Nextflow and Seqera Platform, for scalable data analysis in life sciences.

Java · Kotlin

Java or Kotlin, Spring Boot, Kafka, event-driven microservices, high-integrity financial systems

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

TypeScript · Go

5+ years backend services in production with on-call, TypeScript or Golang, OAuth/OIDC/JWT, PostgreSQL

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

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.

VP-level engineering leadership, 40+ engineers, API platforms, telco network APIs (CAMARA, GSMA) a plus

VonageVonage is a Holmdel Township, NJ-based cloud communications provider specializing in unified communications and contact center solutions for B2B and B2C markets globally.

Python · Kotlin · AWS

8 years of experience, Python, Kotlin, AWS, MySQL, Kubernetes, Correctness-sensitive systems, Data-processing systems, Cross-team collaboration, Technical strategy development, On-call operations management

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

React · Vue · Python

1.5 years of experience, Python, Kotlin, React, Vue, Declarative UI frameworks, Mobile application development, Code review, Debugging, Collaboration with product management, Agile methodology

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

React · Vue · Python

4 years of experience, React, Vue, Python, Kotlin, React Native, Technical planning, Code quality, Communication skills, Team leadership

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

10 years of experience, Multi-team engineering leadership, Technical strategy development, Architecture guidance, AI integration in engineering, Building team culture, Stakeholder collaboration, Mentoring managers, Internationalization experience

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

Python

6-7+ years commercial development, Python 3.x, Django, high-load systems, fluent Russian, intermediate+ English

TorreroTorrero provides white-label casino and sportsbook platforms and B2B game aggregation for iGaming operators.

Python

5+ years commercial development, Python 3.x, Django, high-load systems, fluent Russian, intermediate+ English

TorreroTorrero provides white-label casino and sportsbook platforms and B2B game aggregation for iGaming operators.

3+ years DevOps/build engineering, CI/CD, Perforce admin, employee only if Ireland-based

VOID InteractiveVOID Interactive develops Ready or Not, a tactical first-person shooter about SWAT police units responding to hostile situations.

Python · Go · Kubernetes

5 years of experience, Golang, Python, Kubernetes, AI-assisted coding, Distributed systems

Lemon.ioLemon.io is a Ukraine-based B2B platform connecting startups with vetted freelance developers, offering services globally across various sectors.

Python · Docker

5 years of experience, Django, Python, AI product development, LangChain, LangSmith, OpenAI, OpenRouter, Anthropic, Docker, Git, AI-assisted development, Strong English communication

hurra.comhurra.com™ is a Stuttgart-based B2B digital marketing agency specializing in SEO, SEA, and social media advertising, serving industries like E-Commerce and Finance with a global reach.

Go

Golang or comparable backend language, distributed systems, Kafka, Pub/Sub or SQS messaging

CyberhavenCyberhaven provides an AI-native data security platform for protecting data across human and AI-agent workflows.

Microsoft Copilot Studio, Power Automate, AI agent deployment, API integration, Workflow orchestration, Healthcare experience, Rapid prototyping, Enterprise data governance

HelpwareHelpware provides outsourced customer support, back-office, and technical support services, along with AI and custom software development for businesses.

Python · SQL · Azure

4 years of experience, Python, FastAPI, Azure, Databricks, REST APIs, SQL Server, Docker, Asynchronous processing, Messaging systems, CI/CD

Mutt DataMuttdata is a data and AI consultancy that builds data platforms and machine learning systems, such as forecasting and recommendation models, for client companies.

Python · SQL · Azure

4 years of experience, Python, FastAPI, Azure Databricks, Asynchronous processing, SQL Server, Docker, Azure services, CI/CD participation

Mutt DataMuttdata is a data and AI consultancy that builds data platforms and machine learning systems, such as forecasting and recommendation models, for client companies.

8 years of experience, C++, Unreal Engine 5, AAA console title shipping, Multiplayer game architecture, Game development team management, Software engineering principles, Technical communication

VOID InteractiveVOID Interactive develops Ready or Not, a tactical first-person shooter about SWAT police units responding to hostile situations.

Python

8+ years systems/compilers/runtimes, C++, Python, heterogeneous computing, ML graph compilers

Axelera AIAxelera AI builds low-power AI inference chips, accelerator cards, systems and software for embedded, edge and data-center deployments.

Python

8+ years systems/compilers/runtimes, C++, Python, heterogeneous computing, ML graph compilers

Axelera AIAxelera AI builds low-power AI inference chips, accelerator cards, systems and software for embedded, edge and data-center deployments.

TypeScript · React · Node.js

5+ years software development, Node.js, React, TypeScript, shipped AI features, English B2+

5Blue Software5Blue Software provides custom software development, staff augmentation, and AI solutions for startups and mid-sized companies.

Node.js

5+ years backend with Node.js in production, distributed systems, PostgreSQL tuning, observability

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

3+ years Haskell, C, PostgreSQL/plpgsql, open-source contributions, Linux debugging

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

Senior Unity/C#, engineering people management, AI tooling adoption, live mobile games preferred

HomaHoma is a mobile game developer and publisher creating games and providing a platform for market intelligence and game technology.

Senior Unity/C#, engineering people management, AI tooling adoption, live mobile games preferred

Homa GamesHoma is a Paris-based mobile game developer and publisher whose Homa Lab platform gives studios market data, game tech and AI tools to build mass-market games.