Senior Developer Evangelist

Cosine
London
Workplace: HybridFull timeGBP 60,000 - 90,000 annuallyFunction: Software EngineeringSkills: ["Communication","Writing","Public speaking","Storytelling","Project management"]

A hybrid, highly technical marketing role that shapes Cosine’s technical storytelling across written, visual, and video formats. You’ll translate ML concepts for enterprise buyers, produce long-form explainers and videos, develop a cohesive voice, and create customer case studies while collaborating with engineering, research, and product teams to showcase Cosine’s on-premise coding agent platform.

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Cosine
Cosine
7 months ago

Senior Developer Evangelist

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Last checked: 16 hours agoStatus: Live

Job Summary

A hybrid, highly technical marketing role that shapes Cosine’s technical storytelling across written, visual, and video formats. You’ll translate ML concepts for enterprise buyers, produce long-form explainers and videos, develop a cohesive voice, and create customer case studies while collaborating with engineering, research, and product teams to showcase Cosine’s on-premise coding agent platform.
Location: London
Workplace: Hybrid
Employment Type: Full time
Job Function: Software Engineering

Key Responsibilities

  • •Create best-in-class technical content including long-form explainers on ML techniques, agents, architecture choices, evaluation methods, and product breakthroughs; translate research concepts for CTOs and engineering leaders; produce high-quality videos showcasing the Cosine platform.
  • •Own Cosine’s technical narrative by collaborating with engineering, research, and product to deeply understand Cosine; establish a cohesive voice and style for enterprise audiences; develop visual diagrams and product walkthroughs.
  • •Produce technically rigorous customer case studies highlighting real projects, training approaches, evaluation results, and post-deployment insights for engineering decision-makers.
  • •Elevate Cosine’s brand by explaining its value as a ML research lab and coding agent software provider; differentiate from AI wrappers; ensure content communicates credibility and depth.
  • •Collaborate with a research-driven team and operate with autonomy to shape the function from scratch.

Pay and Benefits

Salary: GBP 60,000 - 90,000 annually

Key Requirements

  • •Deeply technical with comfort reading research papers, evaluating model behaviours, understanding developer workflows, inspecting architecture diagrams, and explaining nuanced ML concepts
  • •World-class communicator capable of making complex systems clear and credible through writing, visuals, and polished video content
  • •Experience producing YouTube-quality video content (storyboarding, editing, motion graphics, or directing)
  • •Ability to independently research technical subjects and produce high-quality content without hand-holding
  • •Strong storytelling, narrative, and content-structuring skills to elevate enterprise-focused technical narratives
Experience:Enterprise softwareMachine learningAI
Skills:CommunicationWritingPublic speakingStorytellingProject management
Languages:English
Tech Stack:MLArchitecture diagramsVideo productionStoryboardingVideo editing

Company Brief

Cosine
Builds developer-focused tools and infrastructure for semantic search and vector embeddings, enabling teams to integrate fast, scalable similarity search and retrieval-augmented workflows into applications via APIs and managed services.
Industry: Data Infrastructure
Growth: Early Stage Startup
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