Sr Applied ML Engineer - Search

About us:

Let’s be real, AI isn’t magic; Legion was built to move beyond AI hype—delivering secure, reliable systems that work alongside the people tackling the world’s most critical challenges

.Born from a Department of Defense partnership and trusted by leaders across government and enterprise, Legion embeds intelligence inside complex systems, unlocking data, accelerating human workflows, and strengthening mission-critical systems. We don’t replace workflows—we optimize them, ensuring quality, efficiency, and reliability inside the platforms our partners already use

.
With world-class collaborators like Palantir, Nvidia, HPE, and Oracle, we’re building intelligent infrastructure that enhances human capability and drives impact at the edge and across a range of enterprise

s.
We’re looking for bold thinkers and doers to join us in shaping the future of AI that’s secure, grounded, and built to wo

**rk.
Job Summ**

ary:
Are you an experienced Applied Machine Learning Engineer who thrives in a fast-paced, collaborative team? We seek a highly skilled Senior Applied Machine Learning Engineer to join our Applied ML team. In this role, you will leverage your expertise in AI/ML engineering to design, develop, and deploy innovative machine learning and algorithmic solut

ions.
If you are adept at building models that solve hard problems, we encourage you to apply. You will collaborate closely with platform engineers and product partners, bringing a strong product orientation to your ML

**work.
Responsibi**

- lities:
Lead the development of machine learning models and data-driven algorithms for high impact
- projectsCollaborate with product and platform teams to own ML solutions en
- d-to-endUnderstand the runtime complexity of algorithms and the cost to run ML models at a producti
- on scaleClearly communicate modeling decisions, tradeoffs, and limitations to technical and non-technical stak
- eholdersBuild, deliver, and maintain enterprise products, ensuring they meet high-quality standards while shipp
- ing fastTake ownership of your work, from design to implementation and maintenance, and drive projects to successful co
- mpletionSupport production systems, handling debugging challenges in distributed systems to ensure reliability an
- d uptimeAdapt quickly, bringing in latest developments in AI and machine learning, and proactively apply this knowledge to drive innovation within the

**company
Required Skills and Qualif**

- ications:
Bachelor’s or Master’s degree in Computer Science, Machine Lea
- rning, NLPMinimum 5+ years of experience in applied machine learning, with a track record of delivering enterpris
- e productsProven experience in Generative AI, including fine-tuning, optimizing, and evaluating LLMs, RAG pipelines, and Agentic
- AI systemsStrong proficiency with AI/ML/NLP techniques, resources and methodologies (ex: Huggingface, Spacy, Scikit-learn,
- Pytorch).Strong communication skills and the ability to collaborate effectively with cross-functi
- onal teamsComfortable supporting production systems and debugging challenges in distribut
- ed systemsDemonstrated effectiveness in using AI tooling to accelerate research and development
- workflowsGrowth mindset and low ego- you’re eager to pick up new tools and technologies, learn from others, and being open to changing course when

**it’s right
Preferred Qual**

- ifications:
Start-up experience or comfort in 0→1 product e
- nvironments.Familiarity with Kubernete
- s is a plus.Experience integrating machine learning models and data driven algorithms into larger system ar

chitectures.