AI/ML Engineer

SRC; Fairborn (OH); On-site; USD 70,000 - 96,000; Full time

Benefits offered by this job

Paid time off

Retirement contribution

Tuition support

Job summary

SRC, Inc. is seeking an AI/ML Engineer to join a hands-on, early-career team building machine learning and generative AI capabilities for defense and national security missions in Dayton, OH.

You will assemble and curate datasets, train and fine-tune models, and build evaluation harnesses to prove models meet field readiness. Collaboration with senior engineers and researchers will grow your ownership over time.

Qualifications

• Bachelor’s degree in a technical field with 0+ years of related experience.
• Proficiency in Python and scientific stack (NumPy, pandas, scikit-learn, matplotlib).
• Familiarity with PyTorch and Hugging Face tooling (Transformers, Datasets, Tokenizers).
• Understanding ML fundamentals and evaluation metrics across tasks.
• Git-based collaboration and clear communication.

Responsibilities

• Build and curate datasets from real and simulated sources, handling imbalance and noise.
• Train, fine-tune, and benchmark models using standard frameworks.
• Develop evaluation pipelines and report results honestly, including negatives.
• Support generative AI efforts with prompts and retrieval-augmented generation.
• Assist with parameter-efficient fine-tuning and supervised fine-tuning of models.
• Implement RL experiments and ensure reproducible measurement.
• Maintain experiment tracking and code hygiene for reproducibility.
• Contribute data, figures, and writeups to reports and reviews.
• Collaborate with engineers and domain experts to understand sensor data.

Skills

Python

NumPy

pandas

scikit-learn

matplotlib

Git

PyTorch

Transformers

Datasets

Tokenizers

Weights & Biases

MLflow

DVC

Gymnasium

Stable-Baselines3

CleanRL

Docker

Education

Bachelor’s in computer science, Engineering, Mathematics, Physics, Statistics, or a related technical discipline

Tools

PyTorch

Transformers

Datasets

Tokenizers

Weights & Biases

MLflow

DVC

Gymnasium

Stable-Baselines3

CleanRL

Docker

Job description

SRC, Inc.u00A0is currently seeking an AI/ML Engineer to join a team building machine learning and generative AI capabilities for defense and national security missions. This is a hands-on, early-career engineering role focused on the practical work of turning data into working models: assembling and curating datasets, training and fine-tuning models, and building the evaluation harnesses that tell us whether a model is actually good enough to field. You will work under the direction of senior engineers and scientists on tasks scoped within larger programs, with increasing ownership of discrete technical tasks as you develop. The work spans classical machine learning, deep learning, reinforcement learning, and the rapidly evolving generative AI toolchain, applied to real sensor data and real mission problems in ISR, EW, and advanced sensing. This is a strong fit for an engineer who wants to build depth in applied ML on problems where the data is messy, the ground truth is hard-won, and the results have to hold up under scrutiny.

What You’ll Dou00A0

• Build, clean, label, and version datasets from real and simulated sources, including handling class imbalance, distribution shift, and sparse or noisy labels
• Train, fine-tune, and benchmark models using standard open-source frameworks, running experiments as assigned and documenting results clearly
• Develop and run evaluation pipelines u2014 task-specific metrics, held-out and adversarial test sets, regression suites u2014 and report findings honestly, including negative results
• Support generative AI efforts through prompt development and iteration, structured output design, retrieval-augmented generation pipelines, and comparative evaluation of open-weight and commercial language models
• Assist with parameter-efficient fine-tuning (LoRA/QLoRA) and supervised fine-tuning of open-weight models for domain-specific tasks
• Implement reinforcement learning experiments in standard environments and instrument them for reproducible measurement
• Maintain reproducible experiment tracking, environment configuration, and code hygiene so that results can be regenerated by others
• Contribute data, figures, and written findings to technical reports, program reviews, and oral presentations
• Collaborate with algorithm engineers and domain experts to understand the sensor data and physical phenomenology behind the datasets you work with

What You’ll Bringu00A0

• Bacheloru2019s in computer science, Engineering, Mathematics, Physics, Statistics, or a related technical discipline and 0+ years of experience (internships, co-ops, research assistantships, and substantial academic project work count)
• Working proficiency in Python and the core scientific stack (NumPy, pandas, scikit-learn, matplotlib)
• Familiarity with at least one deep learning framework, preferably PyTorch
• Exposure to the Hugging Face ecosystem (Transformers, Datasets, Tokenizers) or equivalent open-source model tooling
• Understanding of ML fundamentals: train/validation/test discipline, overfitting and regularization, cross-validation, and the metrics appropriate to classification, regression, detection, and generation tasks
• Comfort with Git-based collaborative development
• Clear written and verbal communication, and a willingness to say when a result doesn't hold up

Ways to Stand Out

• Experience fine-tuning open-weight language models using PEFT methods (LoRA, QLoRA) or the TRL/Axolotl/Unsloth toolchain
• Hands-on work with RAG systems: embedding models, vector stores, chunking strategies, and retrieval evaluation
• Familiarity with LLM evaluation practice u2014 LLM-as-judge, rubric-based grading, eval harness design, and the failure modes of each
• Experience with experiment tracking and data versioning tools (Weights & Biases, MLflow, DVC)
• Exposure to reinforcement learning libraries (Gymnasium, Stable-Baselines3, CleanRL) or to preference-based post-training methods (DPO, GRPO)
• Experience with agentic workflows, tool-calling, or the Model Context Protocol (MCP)
• Work with non-natural-image modalities: RF, radar, SAR, audio, time series, or multimodal data
• Containerization (Docker) and experience running jobs on GPU clusters or cloud compute
• Master's degree in a related technical discipline

What Sets Us Apart?

SRC, Inc., a not-for-profit research and development company, combines information, science, technology and ingenuity to solve u201Cimpossibleu201D problems in the areas of defense, environment and intelligence. Across our family of companies, we apply bright minds, fresh thinking and relentless determination to deliver innovative products and services that areu00A0redefining possibleu00AE. When you join our team, youu2019ll be a part of something truly meaningful u2014 helping to keep America and its allies safe and strong. Youu2019ll collaborate with more than 1,400 engineers, scientists and professionals u2014 with 20 percent of those employees having served in the military u2014 in a highly innovative, inclusive and equitable work environment. Youu2019ll receive a competitive salary and comprehensive benefits package that includes four or more weeks of paid time off to start, 10 percent employer contribution toward retirement, and 100 percent tuition support.

Total compensation for this role is market competitive. The anticipated salary range for this position based out of Dayton, OH is estimated at $70,000 to $96,000 annually. The actual salary will vary based on applicantu2019s experience, skills, and abilities, geographic location as well as other business and organizational needs. SRC offers competitive benefit options, for more details please visit our website.u00A0