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Fullstack Engineer
Builds and maintains a fintech platform for B2B customers, focusing on scalable, secure full-stack development with React/TypeScript (frontend) and Node/TypeScript (backend), while improving CI/CD and team workflows.
QA Lead / Quality Engineering Lead
Leads quality engineering for an AI-first SaaS platform, defining test automation strategy, building Playwright-based frameworks, and integrating tests into CI/CD to ensure reliable releases.
Data Engineer with German - Senior - EY GDS Spain - Hybrid
Senior Data Engineer builds and maintains scalable batch/streaming pipelines (PySpark, SQL) for EY GDS Spain, supporting clients’ digital transformation with distributed data processing and ETL/ELT workflows.
Senior Full-Stack Product Engineer
Builds and scales a real-time AI-driven analytics platform for airlines, focusing on backend services, conversational analytics, and AI-native workflows to optimize pricing and availability.
full stack developer in fintech
Build and maintain full-stack trading platforms for a hedge fund using React, Java/Scala/Go/Python, Kubernetes, and AI tools.
.NET Backend Developer
Build and maintain .NET backend services in C# for marketing/ad-tech platforms, integrating APIs and cloud infrastructure while following SOLID and clean-code practices.
QA Backend Engineer
Develops and executes automated test cases for backend systems, ensuring software reliability and performance in a QA-focused role.
Software Architect
We are seeking an experienced Software Architect to lead the technical vision and architectural strategy of our cloud-native SaaS platform. Our team develops an Azure-based platform for building AI agents and…
Senior / Principal Applied AI Engineer (UK / Europe, Remote)
Build and ship AI agents and agentic workflows that automate internal processes and eventually integrate into a professional trading platform, using Python/TypeScript and LLM APIs.
Senior Software Engineer - Rust - Backend
Build and maintain Rust-based backend services for Kraken Exchange, integrating new blockchains and cryptocurrencies while collaborating with cross-functional teams.
Principal Backend Engineer
Principal Backend Engineer at Nexus Mods, leading a cross-functional team to design, build, and scale core backend services for the world’s largest modding platform, serving millions of gamers and creators.
Senior Java Software Engineer
Design and build scalable Java microservices and enterprise APIs using Spring Boot, cloud-native patterns, and MuleSoft integrations to power digital platforms for large enterprises.
C# Developer - Front Office / Investment Bank
C# Developer for an investment bank's Front Office, designing and maintaining C# .NET applications, building scalable services, and collaborating with Front Office users. Core technologies: C#, .NET, SQL, DevOps.
JR-189982 Full stack Developer Senior
Senior Full-Stack Python Developer building scalable cloud apps with microservices, Python/Flask backend, React/TypeScript frontend, and Kubernetes/AWS deployments.
Backend / API Engineers (Mid to Staff level) – Fintech Platform (Madrid / Hybrid)
Build and scale a modern, self-serve API platform for a fast-growing fintech, using Python/Django, PostgreSQL, AWS, and Kubernetes while improving reliability and developer experience.
Senior Backend Engineer (with Frontend Competency) (Ingeniero Backend Senior con Competencia Frontend) - Hybrid
Build and maintain secure, scalable Java/Spring Boot backend services for Clara’s B2B payments platform, while contributing to React-based frontend apps and using AI tools to accelerate development.
Artificial Intelligence Engineering Manager
AI Engineer (Banking Transformation) AI & Data | Financial Services | Technology & Transformation London (Hybrid) £80,000-£93,000 + Benefits A leading professional services organisation is seeking a Senior…
Scala Software Engineer
Builds and maintains scalable backend systems in Scala using functional libraries like Cats Effect and http4s, running on AWS and Kubernetes, while collaborating with cross-functional teams.
Senior Software Engineer, Front End
Builds and owns React/TypeScript frontends for dealer-facing automotive products, collaborates on full-stack features, and helps set engineering standards for a new Dublin office.
Senior AI Engineer
Builds AI-powered tools and agentic workflows for high-frequency trading (HFT) systems, integrating AI into research, development, and trading operations to improve productivity and business value.