AI Research Scientist

Location: Boston office with a hybrid schedule requiring three days per week on-site. For candidates from Ukraine, a remote-first format is available with the Kyiv HQ operating in a co-working mode.

Company

hirify.global develops consumer software and cybersecurity products, including CleanMyMac, Setapp, ClearVPN, and Moonlock.

What you will do

• Prepare fundamental research proposals focused on LLM efficiency and optimization.
• Survey academic publications, formulate hypotheses, and run deep-dive experiments on new LLM optimization methods.
• Collaborate with internal research scientists and external academic labs on joint projects and publications.
• Transition validated research prototypes into downstream production environments with the applied research stream.
• Drive a research niche from ideation through implementation with significant independence and autonomy.
• Contribute to internal knowledge sharing, paper clubs, and publications at international AI conferences.

Requirements

• Deep experience in natural language processing or a related machine learning domain.
• Strong theoretical and practical understanding of LLM optimization techniques, including quantization, KV-cache compression, speculative decoding, and distillation.
• Hands-on experience with parameter-efficient fine-tuning, including LoRA and other adapters, as well as mixture-of-experts architectures.
• Ability to implement complex algorithms and architectures directly from academic papers.
• Advanced Python programming skills and experience with PyTorch, JAX, or TensorFlow.
• Strong foundations in linear algebra, probability theory, and mathematical statistics.

Nice to have

• Research publications at international AI, machine learning, software engineering, or HCI conferences.
• Performance engineering experience, including profiling and low-level GPU, Metal, or C++ optimization.
• Experience training, running, or deploying localized LLMs on device frameworks such as MLX.

Culture & Benefits

• Hybrid work with flexible working hours and a remote-first option for candidates from Ukraine.
• Medical, vision, and dental insurance for employees and their families.
• Education opportunities, annual development reviews, and internal communities.
• Generous paid time off and a culture based on trust, autonomy, transparency, and constructive feedback.
• Equal opportunity workplace supporting applicants from diverse backgrounds.

Hiring process

• Hiring steps may vary depending on the position.
• The usual process includes several position-specific stages.