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Publicis Groupe · 2 days ago

Senior Software Engineer

New York, NY

Full-time

Onsite

Senior Level, Lead/Staff

$87K/yr - $154K/yr

6+ years exp

Publicis Groupe is a global leader in communication and digital business transformation. The Senior Software Engineer will lead the development of cloud-native services and generative AI-powered prototypes, collaborating with cross-functional teams to enhance client engagements and competitive pitches.

AdvertisingMarketingPublic Relations

Responsibilities

Design, build and own backend services, microservices and cloud functions (AWS, Azure, Databricks) that power GenAI and data science workflows

Integrate and experiment with GenAI APIs (OpenAI, Claude, proprietary LLMs) and agent/tool frameworks; implement retrieval augmented generation and vector database pipelines where useful

Develop occasional cross platform front ends (React, Next.js, Flutter) to showcase prototypes and MVPs

Rapid prototype novel audience intelligence or ad tech concepts for new business pitches; evolve proofs of concept into scalable products

Collaborate with data scientists to operationalize predictive segmentation, targeting and measurement models

Embed observability, monitoring and automated CI/CD so experiments can harden into production quickly

Act as the technical lead within the squad: set coding standards, review PRs and mentor engineers

Translate complex AI/ML ideas into clear narratives for creative, media and C suite audiences

Contribute to hackathons, design thinking sprints and CoreAI product road mapping initiatives

Qualification

PythonGenAI/LLM APIsCloud servicesFront-end frameworksAI-agent orchestrationMLOps toolingTeam leadershipCommunication skillsAdaptability

Required

6+ years professional software‑engineering experience (or 4+ years with a relevant advanced degree)

Expert‑level Python plus proficiency in at least one additional modern language (TypeScript/JavaScript, Java, Go, Dart, etc.)

Hands‑on experience calling or fine‑tuning GenAI/LLM APIs (e.g., GPT‑4o, Claude, Gemini) and integrating them into user‑facing or service‑layer applications

Working knowledge of front‑end or mobile frameworks (React, Next.js, Flutter, etc.)

Prior work with AI‑agent orchestration, vector databases (Pinecone, Weaviate, PGVector) or LangChain/LlamaIndex

Experience deploying models or apps in Databricks and using MLflow or similar MLOps tooling

Familiarity with marketing‑tech or ad‑tech domains, including identity graphs, segmentation and measurement

Thrives in fast‑moving, ambiguous environments; balances strategic vision with hands‑on execution