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Remote Full-Stack Engineer for AI Neobank (Spain)

Bjak is hiring an experienced full-stack engineer in Spain to build its AI Neobank app. The role spans frontend, backend, internal tools, and customer journeys, shipping features fast with product, design, mobile, backend, and AI engineers, then monitoring and improving them post-release. Remote work options are available.

Claire Joster | People first

FinTech Full-Stack Engineer (Java/Spring + React)

Full-stack developer at Claire Joster Technology for an international digital-transformation project in the financial sector, working in a hybrid model from Barcelona. Core stack is Java/Spring + React, with ~5 years' experience valued and additional Go/Node.js/Django/Rails experience a plus. Pays €65k–75k gross/year plus variable, health insurance and language classes.

Django Node.js Rails Ruby

65K – 75K €

Desarrollador Full Stack MERN — Impacto en Finanzas

Full stack MERN developer building and evolving web applications for an international financial-sector company in Madrid. Day to day involves design, architecture and the full development cycle of a proprietary product using React, Node.js and MongoDB.

MongoDB Node.js React

Full Stack Engineer – Digital Transformation Lead

Full Stack Engineer at BMI Companies (BMI Financial Group) in Madrid, building end-to-end digital solutions across frontend and backend, integrating systems and REST APIs within a digital transformation team. Core stack includes native PHP, React.js and JavaScript/TypeScript, with Agile/Scrum and DevOps practices.

Agile API DevOps JavaScript PHP +3 skills

UST España & Latam

Senior Java Engineer (AWS) — Remote & DevOps Ready

New EuropeSenior

Senior Java Engineer at UST Spain & Latam designing, building, and operating scalable software in a DevOps model for a global financial services client. Core stack includes Java, REST APIs, distributed architectures, Gradle/Maven, Jenkins CI/CD, and AWS, with remote work options available.

API CI/CD DevOps Gradle Java +2 skills

Qaracter - Beyond your Challenge

AI Software Engineer | Remote, Java & DevOps for Trading

Qaracter seeks a 100% remote AI Software Engineer for an international tech team focused on trading controls and mission-critical applications. Day to day you participate in the full development lifecycle using Java/Spring Boot, APIs and microservices, applying AI best practices across development, QA and cybersecurity to reduce technical debt.

API Java Spring

SRE DevOps & Automation Engineer: Python, CI/CD, FastAPI

Site Reliability Engineer/DevOps & Automation role in Madrid focused on designing automation tools, building Jenkins CI/CD pipelines, developing in Python with FastAPI, and managing MS SQL and PostgreSQL databases supporting critical processes in a global banking environment.

Automation CI/CD DevOps FastAPI Jenkins +3 skills

Mid-Level Backend Engineer — Fintech Data Pipelines

New HybridEuropeMiddle

Flanks seeks a Mid-Level Backend Engineer in Barcelona (hybrid) to design, build, and maintain data pipelines and backend services for its Open Wealth Platform, owning data ingestion end-to-end. Core stack: ETL/ELT, Python, SQL/NoSQL, and CI/CD, with English and Spanish communication.

CI/CD Data Ingestion Data Pipelines ELT ETL +3 skills

Full-Stack .NET Developer | Hybrid, Azure & Angular

Rastreator, Spain's leading online broker, is hiring a full-stack .NET developer to write code, build integrations and run tests to ensure product quality, working in a hybrid model in Madrid. Core technologies: .NET, Azure and Angular.

Azure DevOps & IA Engineer | Remote & Flexible

Leads DevOps solutions for a major banking project at Plexus Tech: building CI/CD pipelines in Azure DevOps, infrastructure as code with Terraform, applying DevSecOps practices and working with AI on Azure. The role offers 100% remote work with flexible hours, tailored training and certifications.

Azure Azure DevOps CI/CD DevOps DevSecOps +2 skills

Banking Transformation: Full Stack Developer (Python & React)

Arktic, a Spanish business and technology consultancy, is hiring a Functional Analyst & Full Stack Developer in Madrid to support a banking transformation — evaluating platform capabilities, performing functional analysis, and building full-stack solutions with React, Python, and SQL against relational databases.

Python React SQL

AI-Driven Full Stack Developer (Java Spring)

At Plexus Tech in A Coruña, Spain, you'll act as an AI-assisted code analyst, reviewing and improving Java/Spring Boot applications for a banking Trading Controls environment. Day to day: using AI for analysis, refactoring and documentation while reducing technical debt and following CI/CD practices.

CI/CD Java Spring

Tamarind Intelligence

Senior DevOps Engineer — Cloud Platforms & Trading Systems

New EuropeSenior

Senior DevOps engineer at Tamarind Intelligence working hybrid from Málaga, designing, automating, and operating enterprise-scale cloud platforms that support critical trading systems. Core stack includes Azure/AWS, Kubernetes, and IaC, with a focus on CI/CD, observability, and security in a regulated financial services environment.

AWS Azure CI/CD DevOps Infrastructure as Code +1 skills

Senior Data Engineer

New EuropeSenior

Senior Data Engineer designing ELT pipelines and platform components with dbt on Snowflake at a financial services firm, supporting fund accounting, NAV and regulatory reporting, with data contracts, monitoring, and Terraform-based infrastructure, working with governance, security and business stakeholders.

AI Airflow Analytics Cloud Data Engineering +13 skills

Qaracter - Beyond your Challenge

DevOps Engineer - Modernización e Infraestructura Híbrida

DevOps engineer on an international financial-sector team, focused on automating, modernizing, and operating critical platforms in hybrid environments using Linux, Docker/Podman, Bash, AWS, and CI/CD pipelines, with emphasis on reliability and performance.

AWS Bash CI/CD DevOps Docker +2 skills

NLP/ML Data Engineer - Financial Pipelines (Hybrid)

Engineer on Theia Insights' Data Products team, owning pipelines that ingest NLP and financial data on global public equities to produce the company's Industry Classification (TIIC) and Thematic Factor Risk Models. Hybrid role based in Bellprat, Spain with some remote-work options.

Senior Snowflake Data Engineer: ELT Pipelines & Products

New EuropeSenior

Senior Data Engineer building and maintaining ELT pipelines with dbt on Snowflake for a data infrastructure team serving a leading international financial services firm. Day to day involves designing data pipelines and platform components, collaborating with data governance and business stakeholders, and hardening platform security via infrastructure-as-code.

Analytics Data Governance dbt ELT Infrastructure as Code +1 skills

Remote Full-Stack Java Developer: Fraud Prevention (APX/ASO)

Full-stack Java developer (with APX/ASO experience) for a financial-sector fraud detection and prevention project, working 100% remotely from Spain. Includes rotating on-call duty, a permanent contract, continuous training, and a 22–26k gross annual salary.

22K – 26K €

UST España & Latam

Remote C++/Java Developer for Market Risk (Linux/Git)

Develops and maintains critical market-risk applications for a banking-sector project, working 100% remotely from Spain. Day-to-day work involves analysis, maintenance and debugging in C++ and Java on Linux, using Git and UNIX shell within a multicultural team.

Bash C++ Git Java Linux +1 skills

UST España & Latam

Remote C++/Java Developer for Market Risk (Spain)

C++ developer with Java and Linux skills who analyzes, maintains, and supports critical market-risk calculation and control applications for a banking project at UST, working 100% remotely from Spain. Market risk knowledge (VaR, stress testing) and financial-sector experience are valued.