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Back-End Engineer, Trading London
Build backend services in Kotlin/Python for a crypto trading platform, including order management, market data, REST APIs, and WebSocket streams in a high-volume, low-latency environment.
Backend Engineer
Builds and maintains the backend of a SaaS loyalty platform serving ecommerce retailers, using Java 9+, Spring Boot, and Kotlin.
Back-End Engineer, Trading
Build backend services in Kotlin/Python for a crypto trading platform, including order management, market data, REST APIs, and WebSocket streams in a high-volume, low-latency environment.
Back-End Engineer (Senior)
Senior back-end engineer at Xe.com building and modernizing cross-border payment services in C#/.NET, AWS, and event-driven architectures while owning production reliability and mentoring peers.
Senior Backend Engineer - Payin Platform
Build and maintain Wise’s Payin Platform backend in Java/Kotlin with Spring Boot, PostgreSQL, and Kafka to power automated money movement and payment orchestration for millions of users.
Backend Engineer, Distributed Systems (Hybrid)
Build scalable, event-driven payment systems in Kotlin/Java that process millions of real financial transactions daily, including cross-border and Stablecoin-enabled payments.
Backend Engineer - Lead
Lead backend development for Huspy’s real-estate agent and mortgage broker platforms using Kotlin/Spring Boot, PostgreSQL, and AWS.
Backend Engineer
Build core financial infrastructure for global commerce: payment flows, multi-currency ledgers, real-time tax engines, and AI-powered compliance tools in a JVM/Kotlin stack.
Senior Backend Engineer
Build and optimize backend services that ingest, index, and serve complex financial data for AI-powered workflows using PostgreSQL, ClickHouse, Kafka, and ElasticSearch.
Backend Engineer
Build and maintain scalable backend services for a fintech app that automates saving and investing, using Kotlin/Spring Boot and Python/FastAPI on GCP.
Lead Front End Engineer (React Native)
Lead the development of Zapp’s React Native mobile app, building fluid UX for 24/7 convenience retail and optimizing front-end performance.
Senior Backend Engineer
Build and maintain the backend of a SaaS API-mocking platform in Java/Kotlin, deploy and scale cloud infrastructure, and embed AI workflows while contributing to open-source projects.
Senior Backend Engineer
Build and scale the backend systems powering Plum’s smart saving and investing app, using Kotlin/Spring Boot and Python/FastAPI on GCP with Postgres and BigQuery.
Senior Backend Developer - Kotlin
Build and maintain a real-time capital-markets issuance platform in Kotlin, using XP practices and GCP services to support global trading workflows for investment banking.
React Native Developer
Build and maintain cross-platform mobile apps using React Native, integrating APIs and Firebase, while optimizing performance and collaborating with design and backend teams.
Backend Developer (SC Eligible/ Cleared)
Designs and builds secure, scalable backend services and REST/GraphQL APIs in Java/Spring Boot, and integrates agentic AI workflows using LLM frameworks for automation and decision support.
Backend Developer (SC Cleared/Eligible)
Design and build secure, scalable backend services and REST/GraphQL APIs in Java/Spring Boot, and integrate agentic AI workflows using LLM frameworks for automation and decision support.
Software Developer - AI Trainer
Train AI models by writing and evaluating code snippets, primarily in Android/Kotlin, to improve AI-generated solutions and provide detailed feedback.
SOFTWARE DEVELOPER SPECIALIST II - Digital Account
Lead the technical evolution of a digital banking account at a Brazilian neobank, designing scalable microservices and mentoring engineers to deliver secure, high-availability financial systems.
Sr Python Developer (AI Specialist), Brazil
Build and scale AI agents and GenAI workflows in Python/Node.js to boost developer productivity and software quality, integrating with CI/CD and vector databases.