Member of Technical Staff

Reflection
Full-time Finland, Finland Other-General
Posted:
February 24, 2026
Location:
Finland, Finland, Finland

Job Description

Our Mission

Reflection's mission is to build open superintelligence and make it accessible to all.

We're developing open weight models for individuals, agents, enterprises, and even nation states. Our team of AI researchers and company builders come from DeepMind, OpenAI, Google Brain, Meta, Character.AI, Anthropic and beyond.

About the Role

  • Drive the entire alignment stack, spanning instruction tuning, RLHF, and RLAIF, to push the model toward high factual accuracy and robust instruction following.

  • Lead research efforts to design next-generation reward models and optimization objectives that significantly improve human preference (HP) performance.

  • Curate high-quality training data and design synthetic data pipelines that solve complex reasoning and behavioral gaps.

  • Optimize large-scale RL pipelines for stability and efficiency, ensuring rapid iteration cycles fo...

Apply for this Job

Submit your application for the Member of Technical Staff position at Reflection.

Apply Now Save for Later

Job Overview

Job Type: Full-time
Location: Finland, Finland
Posted: February 24, 2026
Deadline: April 05, 2026