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Senior engineer on Zeta's LiveIntent Real-Time Ad Serving team, writing Lua business logic (ad selection, targeting, frequency capping, budget pacing) on a high-performance C++ server platform handling 200K+ requests per second. Hybrid/remote role based in Berlin or Prague.
Senior software engineer at a Latin American fintech building a global payments platform, working with PHP, Java, and MySQL to ensure high availability and throughput for millions of transactions.
Senior engineer owning Algolia's Salesforce B2C Commerce (SFCC) integration end to end — designing, building, and scaling the connector that links customers' commerce platforms to Algolia's search APIs, writing RFCs and resolving complex integration issues. Core tech: SFCC/SFRA, JavaScript, TypeScript, Node.js.
Java developer joining a project team building microservices for Poland's National Library (Biblioteka Narodowa), covering the full development cycle from analysis to testing, debugging and optimization. Stack: Java 11+, Spring Boot, REST, PostgreSQL, Jenkins, Maven and Git; 0.5 FTE remote role on a B2B contract.
Senior Java developer designing and building scalable backend systems and distributed services in Java, Spring Boot and REST APIs on AWS, with MongoDB, CI/CD, automated testing and production monitoring. Hybrid role with 2 days/week in the Kraków office, paid up to 150 PLN/hour (B2B) on varied client projects.
Senior Java Developer at Pragmatic Coders, a software consultancy that takes over, organizes and develops clients' digital products: you own tech decisions, build new products and refactor mature systems. Core stack: Java, Spring, Hibernate, microservices. Kraków, hybrid (2 office days/week), B2B day-rate or UoP contract.
Senior Java developer at Luxoft Poland's Financial Services unit, building cloud-ready capital-markets software: upgrading Spring Boot versions, replacing Hazelcast, refactoring to stateless microservices, and integrating Kafka with focus on performance and resilience. Hybrid work in Wrocław, collaborating with QA, DevOps, and architecture teams; AWS is a plus.
Senior Java developer building and evolving backend microservices for an energy-sector client, defining technical direction and mentoring the team. Core stack is Java 17+, Spring Boot, Apache Kafka, Apache Camel, and Oracle DB, based in Wrocław with remote flexibility.
IThouse is staffing a Senior Java Developer for a client project at Poland's National Library: implementing features in an existing microservices architecture, writing unit/integration tests, doing code reviews, and maintaining CI/CD. Core stack: Java 11+, Spring (Boot/Framework/Cloud), PostgreSQL, Elasticsearch, RabbitMQ, Kubernetes. 100% remote, half-time B2B up to 120 PLN/h net.
Sii Poland is hiring a Senior Python Developer for a remote, cloud-native team serving large-scale telecom networks including 5G. The role covers the full software lifecycle: Python development, automated testing, Linux, and containerized microservices to analyze network data for RAN optimization and self-healing use cases.
Systems Engineer 4 at Ultra I&C leads design and development of integrated avionics, communications, and command-and-control systems for defense programs. Day to day: MBSE-driven system design and analysis, building test plans and test beds, executing test procedures, and mentoring junior engineers. Requires an active Secret clearance, US citizenship, and 8+ years of systems engineering experience
Senior backend engineer building a regulated prediction and trading platform in Go/Java, ensuring low-latency, auditability, and compliance for a sports-focused fintech product.
Senior Software Engineer designs and builds scalable, low-latency distributed systems for a real-money prediction and trading app, using Kotlin, Java, Kafka, and cloud-native AWS tools.
Senior Systems Engineer designs and maintains Okta-based identity and access management, automates SaaS integrations, and enforces Zero Trust policies for a fast-growing sports-betting platform.
Senior engineering leadership role owning Fanatics Commerce's storefront pillar: leading a globally distributed org that builds the customer-facing web experience (home, search, PDP, personalization, design system) for 900+ licensed sports-merch e-commerce sites. Stack centers on React/TypeScript, Node.js, GraphQL, micro-frontends, plus AI/ML-powered personalization.
Maintain and modernize legacy ERP (Microsoft Dynamics SL) and .NET fulfillment systems, build integration APIs, and optimize SQL Server workflows for a global sports merchandise platform, hybrid in Hyderabad.
Senior mobile engineer building features for the Fanatics Sportsbook app using Kotlin Multiplatform, modern mobile UI frameworks like SwiftUI and Jetpack Compose, in a fast-paced sports betting environment.
Leads the long-term tech vision and multi-year strategy for Fanatics' core digital platforms, overseeing architecture, engineering teams, and cross-functional initiatives to scale commerce, collectibles, and betting systems.
Engineer lifecycle and growth integrations for Fanatics Collectibles, implementing Braze SDKs and data instrumentation to power real-time user engagement across web and mobile platforms.
Leads backend systems for Fanatics Collectibles’ global operations, focusing on scalability, fraud detection, payments, and trust tooling to support millions of users and transactions across sports collectibles and betting platforms.
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