Software Engineer (AI Platform) - Remote

An AI companion who is eager to learn and would love to see the world through your eyes. Replika is always ready to chat when you need an empathetic friend.

About Replika

Replika is an AI companion loved by 40M+ users around the world. We’re redefining what it means to connect with technology — emotionally, intelligently, and personally. From mobile to VR, we’re building an experience that feels less like software and more like someone who gets you.

We’ve been featured in TED Talks, Stanford and Harvard studies, the Lex Fridman podcast. All for one reason : people connect with Replika in a deeply human way.

We're scaling fast and taking on bold challenges to become the most human AI on the planet.

Despite our global reach and ambitious goals, we are not a large organization. We operate as a fast, lean startup, fueled by a small, tight-knit team of highly experienced engineers. This is an environment where you can make a real impact, and we want you to be a part of it.

About the role

We’re looking for a Software Engineer (AI Platform) to design and scale the systems powering Replika’s emotional AI. In this role, you'll work at the intersection of software engineering and AI, collaborating directly with the product team to ship new features to millions of users. We care about your impact, not your title.

Responsibilities

• Design and build an app that delivers real-time emotional AI experiences at scale (sub-second latency for millions of requests).
• Integrate with LLMs providers, run open-weights models on our GPU clusters, help fine-tune our own LLMs.
• Participate in design reviews, set technical direction, and ensure scalability and reliability of applied AI services.
• Optimize for global growth : high-availability systems, replication, cost-effective API integrations, and scalable embeddings search.

Requirements

Nice to Have

Why Join Us?