GenAI Software Engineer Intern – GenAI Model Experiment

About Signify

Through bold discovery and cutting-edge innovation, we lead an industry that is vital for the future of our planet: lighting. Through our leadership in connected lighting and the Internet of Things, we're breaking new ground in data analytics, AI, and smart solutions for homes, offices, cities, and beyond.

At Signify, you can shape tomorrow by building on our incredible 125+ year legacy while working toward even bolder sustainability goals. Our culture of continuous learning, creativity, and commitment to diversity and inclusion empowers you to grow your skills and career.

Join us, and together, we’ll transform our industry, making a lasting difference for brighter lives and a better world. 

More about the role

This is an exciting opportunity to light the way as a GenAI Engineer Intern with Signify's Research team.

We are seeking a highly analytical and research-driven intern passionate about the intersection of Generative AI, search visibility, and applied research. In this role, you will focus on Generative Engine Optimization (GEO)—shaping how our brands are discovered through AI—while also driving advanced academic research in foundation models.

Key Responsibilities:

• Generative Engine Optimization (GEO) & Application Development: Drive GEO initiatives to enhance brand visibility for campaigns. Your core responsibilities will include:
  • Designing and executing rigorous A/B test planning.
  • Conducting prompt optimization to maximize AI-driven search relevance.
  • Creating and implementing custom AI skills and Agentic workflows.
  • Tracking KPIs to measure optimization success and visibility lift.
  • Developing, maintaining, and scaling features for our internal GEO applications.
• Academic Research & Publication: Collaborate with the team to conduct deep, rigorous research. You will be responsible for composing and co-authoring academic papers targeted for publication in top-tier journals, exploring advanced AI topics such as LLM Supervised Fine-Tuning (SFT), time series foundation models, and model alignment.

Must-Have Qualifications:

• Currently pursuing a Master’s/PhD in Computer Science, Data Science, AI, or related fields.
• Availability: Able to commit to a 4-5 days, 4-month internship starting in May - June 2026.
• Proven coding rigor: Requiring strong Python programming or vibe-coding skills with hands-on experience building or testing LLM-based applications and utilizing modern development toolchains (Claude Code, Git).
• Research & Writing Excellence: Demonstrated ability to formalize research methodologies and write high-quality academic or technical papers are preferred.
• Analytical mindset: Experience with A/B testing frameworks, experimental design, and defining/tracking KPIs for model evaluation are preferred.
• Self-starter: Ability to set up experiments independently, troubleshoot code, and drive projects forward.
• English proficiency: Strong ability to read, write, and synthesize complex technical documents and academic papers.

Preferred Skills:

• Experience with LLM Supervised Fine-Tuning (SFT), Reinforcement Learning from Human Feedback (RLHF), or model alignment techniques.
• Familiarity with time series foundation models or handling complex telemetry/sensor data for predictive tasks.
• Experience with Harness Engineering, Agentics, Retrieval-Augmented Generation (RAG) architectures and complex prompt engineering.
• Contributions to open-source AI projects or a track record of publications in AI, ML, or HCI conferences/journals.

Everything we’ll do for you

You can grow a lasting career here. We’ll encourage you, support you, and challenge you. We’ll help you learn and progress in a way that’s right for you, with coaching and mentoring along the way. We’ll listen to you too, because we see and value every one of our 27,000+ people. We believe that a diverse and inclusive workplace fosters creativity, innovation, and a full spectrum of bright ideas. With a global workforce present in 70+ countries, we are dedicated to creating an inclusive environment where every voice is heard and valued, helping us all achieve more together. 

Come join us, and together we can light up the future.