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Software Engineer II (Kotlin) - Core Experience
Software Engineer II building Adyen's in-person payments stack: Kotlin (Kotlin Multiplatform) business logic and SDKs for payment terminals running Android and Linux, plus backend services and some C++ libraries. Office-first role based in Chicago; salary $154k–$200k.
PESSOA DESENVOLVEDORA SÊNIOR (POWER BUILDER)
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior PowerBuilder Developer based in Brazil. We are looking for an experienced Senior…
Android Developer
Tryb pracy: Zdalnie / Jednodniowa wizyta w biurze w Warszawie co 2 tygodnie. Stawki: mid: 115-140 zł/h ; senior 145-160 zł/h Poszukujemy Mid/Senior Android Developera do projektu realizowanego dla klienta z sektora…
Pessoa Desenvolvedora Fullstack React/Kotlin/Java Especialista I (RGM e Demanda)
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Fullstack Developer – React/Kotlin/Java Specialist I (RGM & Demand Planning) based in…
Software Engineer II Backend
Mid-level backend engineer (Kotlin or Java) joining a global cybersecurity client's Insider Risk Management product team, owning AWS services that process billions of events: designing APIs, writing tests and IaC, handling on-call, and mentoring teammates. Hired via recruiter Roca Alliances in Medellin, Colombia.
Software Engineer I Backend
Entry-level backend engineer on a global cybersecurity company's Insider Risk Management product team (placed via recruiter Roca Alliances), based in Medellín, Colombia. Builds and maintains Kotlin/Java services and APIs on AWS that process billions of events, writing tests, infrastructure as code, and joining on-call.
Senior Full-Stack Engineer - AI-Driven Network Insights
Join Cisco ThousandEyes' Endpoint Engineering team in London to build user-facing frontend features and supporting APIs/data flows that help customers diagnose and troubleshoot network issues in real time. Core stack: production-grade JavaScript/TypeScript, Java/Kotlin, Vue or React, and real-time data streams.
Full Stack Engineer - React/Typescript - Python (VP)
VP-level full-stack engineer in Citi's Equities Technology, building greenfield trader-workflow services for Strategic Equity Solutions with end-to-end ownership from design to production. Core stack: Kotlin/Python backends, React/TypeScript frontends, microservices deployed on Kubernetes/OpenShift with DevOps practices.
Senior Backend Engineer
Senior Backend Engineer at a fast-paced London startup building an API-driven platform that generates high-quality test data for development and QA teams. You'll build product features, improve backend performance and scalability, and help shape technical direction using Kotlin/Java and Spring Boot in a hybrid setup.
Senior Backend Engineer, Endpoint & Data Insights
Senior backend engineer on Cisco ThousandEyes' Endpoint Engineering team, building scalable data pipelines and backend services that ingest and analyze telemetry from endpoint agents for digital experience troubleshooting. Stack centers on Java/Kotlin, Spring Boot, and cloud technologies, with on-call participation.
Senior Java Engineer – Fixed Income Pricing and Analytics
Senior (VP-level) Java engineer at Deutsche Bank London building a next-generation, cloud-native pricing and analytics platform for Rates & Credit Fixed Income trading — designing real-time, low-latency Java services and event-driven systems with traders. Core stack: modern Java, Kafka/Solace, Kubernetes, REST/gRPC/streaming APIs.
Junior Java Developer - Trading
Junior backend Java developer at a growing commodities trading firm in London, joining a small Agile team to build services across trading systems, marketplaces, payments, and automation. Core stack includes Java, Kotlin, Spring Boot, and cloud tech; hybrid role with 3 days per week in the office.
Java Developer with Kotlin (Prime Brokerage Technology)
Builds and owns core components of Citi's Prime Brokerage platform in Java and Kotlin, leading an agile team's architecture, CI/CD and DevOps practices. Day to day: coding with TDD, translating business needs into technical specs, mentoring, and improving production performance and reliability using Kubernetes, Kafka and observability tooling.
Senior Java Developer
Senior Java developer helping rebuild a flagship low-latency, event-driven platform for a leading financial services technology vendor in London. Day to day: building highly available JVM services in Java and Kotlin with a focus on concurrency, performance, and messaging (FIX/Kafka a plus).

Staff Backend Engineer (Golang) - BeReal
About Voodoo Founded in 2013, Voodoo is a tech company that creates mobile games and apps with a mission to entertain the world. Gathering 800 employees, 7 billion downloads, and over 200 million active users, Voodoo…

Senior Backend Engineer (Golang) - BeReal
About Voodoo Founded in 2013, Voodoo is a tech company that creates mobile games and apps with a mission to entertain the world. Gathering 800 employees, 7 billion downloads, and over 200 million active users, Voodoo…
Senior Mobile Engineer, Charging
Senior Mobile Engineer at Nayax Energy (on-site in Schenectady, NY, 5 days/week) building native Android Kotlin modules that let React Native apps talk to next-gen EV charging hardware over a 40-pin connector. Work centers on Turbo Modules/Fabric, serial/UART and GPIO communication, testing, and mentoring.
Mobile App Developer* Android, iOS*
Das erwartet dich bei uns: Du arbeitest in Beratungs- und Softwareentwicklungsprojekten bei Kunden wie AXA, BMW, DPD, der Deutschen Bahn und ZDF Du konzipierst, entwickelst und implementierst Softwarelösungen, in dem…