
5001 - 10000 employees
Founded 2018
💼 Consulting
📣 Marketing
Consulting • Advertising • Marketing
S4 Capital Group is a new age digital advertising, marketing, and technology services company. Operating within the rapidly expanding segment of the advertising and marketing services market, S4 Capital aims to disrupt traditional models by focusing exclusively on digital content, data, and media. With a mission to provide seamless and integrated services globally, they specialize in creating engaging stories, transforming data into actionable insights, and building digital architectures to enhance customer experiences. The company emphasizes sustainability and responsible business practices as a central part of its ethos.
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5001 - 10000 employees
Founded 2018
💼 Consulting
📣 Marketing
Consulting • Advertising • Marketing
S4 Capital Group is a new age digital advertising, marketing, and technology services company. Operating within the rapidly expanding segment of the advertising and marketing services market, S4 Capital aims to disrupt traditional models by focusing exclusively on digital content, data, and media. With a mission to provide seamless and integrated services globally, they specialize in creating engaging stories, transforming data into actionable insights, and building digital architectures to enhance customer experiences. The company emphasizes sustainability and responsible business practices as a central part of its ethos.
• Design and build the agent orchestration layer, including workflow state, event-driven agent execution, and next-best-action logic. • Integrate LLMs behind a provider-agnostic layer using Anthropic, OpenAI, and Writer.ai, with structured outputs, tool-calling, retries, and model routing. • Transform documents, transcripts, and records into structured, reliable data. • Build human-in-the-loop approval flows. • Set up evaluation and tuning loops to improve agent behavior based on evidence. • Collaborate with frontend, product, and client stakeholders to ship end to end.
• Hands-on experience building LLM-powered or agentic applications, including tool-calling, structured output, RAG, and prompt iteration. • 5+ years shipping production software. • Strong engineering experience; TypeScript/Node is used, with Python and other ecosystems welcomed. • Familiarity with orchestration frameworks such as LangGraph.js, Vercel AI SDK, or Mastra. • Experience with provider SDKs including Anthropic and OpenAI. • Experience designing scalable systems on AWS. • Track record working with unstructured data, including parsing, extraction, and validation. • Eval-driven approach to measuring agent quality and iterating accordingly. • Strong English communication skills. • Comfortable in a fast-paced, agile consulting environment. • Extra credit: experience in regulated or high-stakes domains, LLM evaluation harnesses, voice or transcript pipelines, document-heavy workflows, Next.js, Writer.ai, or open-source agent work.
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