We are seeking a Sr Software Engineer to help us build the next version of media web experience. In this role, you will define the work on the technical components of how we deliver video and audio content at Reddit. Specifically, you will focus on our web media player and the APIs that power it, drawing on industry patterns from top streaming platforms to build seamless, low-latency playback experiences and interactive tools for creators and users alike. **Key Responsibilities** - Work cross-functionally with product, design, and other engineering counterparts to execute on product and business strategy and build novel products and features that our users will love. - Contribute to the full development cycle: technical design, development, test, experimentation, analysis, and launch. - Design and implement end-to-end fullstack solutions, optimizing web UI components for our media player (React, TypeScript) and the backend APIs (Go, Python) that power them. - Move fast while balancing quality. We can't afford extensive processes, and we also can't afford show-stopping bugs. - You'll be reviewing code and design docs, giving feedback on product specs and mocks. - Collaborate with client engineers and platform engineers to improve performance of media across Reddit to serve better content globally. - Contribute to standards that improve developer workflows, recommend best practices, and help mentor junior engineers on the team to grow their technical expertise. **Qualifications** - BS degree in Computer Science, a similar technical field of study or equivalent practical experience. - 5+ years of hands-on, professional software development experience in one or more general purpose programming languages (Go, Python, Ruby, Java, C++). - Strong proficiency in modern web development technologies (JavaScript, React, Next.js, TypeScript) and experience translating complex UI/UX designs into scalable web applications. - Experienced with GraphQL, REST, HTTP, gRPC, Thrift basics, and the ability to design and implement maintainable APIs. - Strong organizational skills, the ability to prioritize tasks and to deliver projects on schedule. - Excellent communication skills. You collaborate effectively with teams in a fully remote environment and discuss complex topics with technical and non-technical audiences. **What Will Set You Apart** - Deep product thinking abilities; a track record of bridging the gap between highly technical media streaming metrics (like QoE and buffering rates) and user-facing features (like media controls, analytics dashboards, and interactive video). - Familiarity with HTTP Live Streaming (HLS), MPEG-DASH, MP4, and other streaming protocols, as well as video compression standards (H.264, H.265/HEVC, VP9, AV1). - Demonstrated curiosity and commitment to staying up-to-date with advancements in video compression technologies, including attending conferences, reading research papers, and engaging with the latest industry trends. - Familiar with background data fetching. **Benefits:** - Comprehensive Healthcare Benefits and Income Replacement Programs - 401k with Employer Match - Global Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support - Family Planning Support - Gender-Affirming Care - Mental Health & Coaching Benefits - Flexible Vacation & Paid Volunteer Time Off - Generous Paid Parental Leave **Pay Transparency:** This job posting may span more than one career level. In addition to base salary, this job is eligible to receive equity in the form of restricted stock units, and depending on the position offered, it may also be eligible to receive a commission. Additionally, Reddit offers a wide range of benefits to U.S.-based employees, including medical, dental, and vision insurance, 401(k) program with employer match, generous time off for vacation, and parental leave. To learn more, please visit https://www.redditinc.com/careers/. To provide greater transparency to candidates, we share base salary ranges for all US-based job postings regardless of state. We set standard base pay ranges for all roles based on function, level, and country location, benchmarked against similar stage growth companies. Final offer amounts are determined by multiple factors including, skills, depth of work experience and relevant licenses/credentials, and may vary from the amounts listed below. The base salary range for this position is: $190,000-$267,000 USD In select roles and locations, the interviews will be recorded, transcribed and summarized by artificial intelligence (AI). You will have the opportunity to opt out of recording, transcription and summarization prior to any scheduled interviews. During the interview, we will collect the following categories of personal information: Identifiers, Professional and Employment-Related Information, Sensory Information (audio/video recording), and any other categories of personal information you choose to share with us. We will use this information to evaluate your application for employment or an independent contractor role, as applicable. We will not sell your personal information or disclose it to any third party for their marketing purposes. We will delete any recording of your interview promptly after making a hiring decision. For more information about how we will handle your personal information, including our retention of it, please refer to our Candidate Privacy Policy for Potential Employees and Contractors.