Junior Java Engineer

Role Overview

• 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.

Requirements

• 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

Tech Stack

• FFmpeg
• Java

Benefits

• 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)