Junior Java Engineer

🕒 Julho 8

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Wowza

SiteLinkedInTodas as Vagas

51 - 200 funcionários

Fundada em 2007

🏥 Saúde

💼 Consultoria

📣 Marketing

Healthcare • Consulting • Marketing

A Wowza é um provedor líder em tecnologia de streaming de vídeo, oferecendo soluções abrangentes de ponta a ponta para streaming de vídeo ao vivo e sob demanda (VOD). A plataforma da empresa inclui transcodificação de vídeo, reprodução e análises, sendo conhecida por sua alta escalabilidade e confiabilidade, processando mais de 30 milhões de horas de vídeo ao vivo mensalmente. A Wowza atende a uma variedade de clientes, incluindo emissoras, organizações esportivas e religiosas, fornecendo APIs robustas e suporte para incorporação de vídeo em aplicações. Seus serviços são particularmente adequados para ambientes de nuvem (SaaS), nuvem privada e configurações de streaming em nuvem híbrida, suportando alta personalização e fluxos de trabalho de streaming eficientes.

Descrição

• Design and develop core features within Wowza Streaming Engine designed for testability and scale. • Design and implement advanced transcoder workflows for new codecs and accelerators. • Design and implement highly scalable packaging workflows. • Debug and resolve customer reported issues, bugs and performance issues. • Participate in cross-functional projects from conception through deployment. • Be a resource to other team members as a streaming subject matter expert.

🎯 Requisitos

• 8+ years of hands-on Java development in performance-critical, large-scale systems. • Deep understanding of Java concurrency and multithreading — thread pools, locks, synchronization, concurrent data structures, and designing thread-safe components for high-throughput workloads. • Strong knowledge of JVM internals including garbage collection tuning (G1, ZGC, Shenandoah), heap/off-heap memory management, and GC pause optimization for latency-sensitive applications. • Proven ability to optimize Java applications for memory, CPU, and GPU utilization using standard Java profiling and diagnostic tools. • Experience with JNI (Java Native Interface) for integrating Java with native C/C++ libraries and managing cross-boundary memory and threading safely. • Experience with Unit testing, performance testing/tuning (heap dump analysis, thread dump analysis), and debugging complex multithreaded Java applications. • 5+ years’ experience in transcoding and packaging workflows (Wowza or similar). • Deep knowledge of video codecs: H.264/AVC, H.265/HEVC, VP8/VP9, AV1. • Hands-on experience with GPU or VPU accelerated transcoding pipelines. • Extensive experience with one or more of the common streaming protocols – RTMP, RTSP, HLS, MPEG-DASH, CMAF, WebRTC. • Knowledge of content encryption and DRM. • Familiarity with video quality metrics (PSNR, SSIM, VMAF). • Experience with C/C++ development and ability to read, debug, and contribute to native codebases that interface with Java via JNI. • Contributions to open-source video projects such FFmpeg or gStreamer. • Experience with Wowza Streaming Engine. • Understanding of build (CI/CD) and test automation frameworks for large scale software. • Experience creating and documenting public APIs and creating publicly available SDKs

🏖️ Benefícios

• Generous Paid Time Off • Medical, Dental, and Vision insurance (effective Day 1) • 401(k) with strong company match • Dependent Care FSA • Employer-paid Life Insurance and AD&D • Voluntary Life Insurance (Employee/Spouse/Child) • Paid Parental Leave • Short-Term and Long-Term Disability • Training & Development opportunities • Employee Assistance Program (EAP)