At a Glance
- Tasks: Lead projects fine-tuning large language models and optimise AI systems.
- Company: Join APPIT Software Solutions, a leader in AI-powered enterprise products.
- Benefits: Enjoy competitive salaries, flexible work, and career growth opportunities.
- Other info: Collaborate with 150+ professionals in a dynamic and supportive environment.
- Why this job: Make an impact in AI by working with cutting-edge technologies and innovative projects.
- Qualifications: 5+ years in ML engineering with expertise in LLM training and fine-tuning.
The predicted salary is between 70000 - 90000 £ per year.
APPIT Software Solutions is hiring a LLM Fine-Tuning & Optimization Engineer in London, UK. Specialize in fine-tuning and optimizing large language models at APPIT Software in London, applying RLHF, DPO, LoRA, and advanced alignment techniques to build domain-specific AI systems.
Responsibilities
- Lead LLM fine-tuning projects using LoRA, QLoRA, full fine-tuning, and continued pre-training
- Design and curate high-quality training datasets for domain-specific model adaptation
- Implement RLHF and DPO alignment pipelines for safety and instruction following
- Optimize model inference using quantization (GPTQ, AWQ, GGUF) and pruning techniques
- Build automated evaluation pipelines for measuring model quality across benchmarks
- Research and implement state-of-the-art parameter-efficient fine-tuning methods
Requirements
- 5+ years of ML engineering with 2+ years focused on LLM training and fine-tuning
- Deep expertise in parameter-efficient fine-tuning (LoRA, QLoRA, adapters)
- Experience with distributed training using DeepSpeed, FSDP, or Megatron-LM
- Strong knowledge of model optimization, quantization, and serving at scale
- Hands-on experience with Hugging Face Transformers, PEFT, and TRL libraries
- Understanding of data curation, quality filtering, and synthetic data generation
Nice to Have
- Published research on LLM training or alignment
- Experience with custom CUDA kernels or FlashAttention
- Knowledge of EU AI Act compliance requirements
About APPIT Software Solutions: APPIT Software Solutions is a leading technology company building AI-powered enterprise products. Join 150+ professionals working on cutting-edge solutions in AI/ML, cloud computing, and digital transformation. We offer competitive salaries, flexible work arrangements, and opportunities for career growth across our global offices.
LLM Fine-Tuning & Optimization Engineer employer: Appit LLC
APPIT Software Solutions is an exceptional employer, offering a dynamic work environment in the heart of London where innovation meets compliance. With a strong focus on employee growth, we provide comprehensive training and mentorship opportunities, ensuring that our team members thrive in their careers while working on cutting-edge AI and fintech solutions. Our flexible work arrangements and competitive salaries reflect our commitment to fostering a supportive and inclusive culture that values every individual's contribution.
