# Data Scientist / Software Engineer (NLP & Java) – Expert | TS/SCI w/ Poly

Active TS/SCI with Polygraph required. U.S. citizenship required. Location: On-site in McLean, VA (Full-Time). Bridge data science and production software. You'll build NLP and machine learning capabilities in Python and ship them inside Java/Spring applications on AWS for a federal national-security mission. What you'll do Build NLP capabilities with spaCy, Gensim, NLTK and Hugging Face Transformers Develop and integrate deep learning models in PyTorch, TensorFlow or Keras Build backend services in Java, Spring and Spring Data JPA on Oracle/SQL Deploy on AWS and Linux with Git, Jenkins and Apache Tomcat Integrate models into operational applications and workflows What you bring (required) Active TS/SCI with Polygraph Strong Python and NLP experience (spaCy, Gensim or NLTK) PyTorch, TensorFlow or Keras SQL Linux, Git and AWS Nice to have Strong Java: Spring, Spring Data JPA, multithreading, JVM tuning Maven/Gradle, Jenkins CI/CD, Oracle, Tomcat Text classification, topic modeling or LLM fine-tuning GPU workloads Why Falls A 9% retirement contribution, 100% of family medical premiums paid, and 4 weeks of PTO. We're a small business that's been delivering since 2019, so your work is

- **Id**: 4199059
- **Url**: <https://alion.io/job/falls-technology-data-scientist-software-engineer-nlp-java-expert-tssci-w-poly>
- **Role**: AI/ML
- **Role family**: AI/ML
- **Seniority**: senior
- **Employment type**: full_time
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: McLean, United States
- **Countries**: US
- **Hiring countries total**: 0
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-10-12T00:00:00Z
- **Employer posted date**: 2026-10-12
- **Last verified at**: 2026-11-12T21:31:02Z
- **Board verified**: yes
- **Days open**: 31
- **Description format**: text
- **Description chars**: 1437
- **Description truncated**: no
- **Relocation offered**: no
- **Industries**: Systems Integrators, Custom Software Development

## Company

- **Id**: 4483010
- **Name**: Falls Technology
- **Domain**: fallstechnology.com
- **Url**: <https://alion.io/company/falls-technology>
- **Is staffing agency**: no
- **Employer type**: services
- **Is intermediary**: no
- **Ats vendor**: Schema

## Technologies

- **Apache Tomcat** — Optional: no
- **AWS** — Optional: no
- **Gensim** — Optional: no
- **Git** — Optional: no
- **Hugging Face** — Optional: no
- **Java** — Optional: no
- **Jenkins** — Optional: no
- **Keras** — Optional: no
- **Linux** — Optional: no
- **Machine Learning** — Optional: no
- **NLP** — Optional: no
- **NLTK** — Optional: no
- **Python** — Optional: no
- **PyTorch** — Optional: no
- **spaCy** — Optional: no
- **Spring Data JPA** — Optional: no
- **SQL** — Optional: no
- **TensorFlow** — Optional: no
- **Transformers** — Optional: no
- **CI/CD** — Optional: yes
- **Fine-tuning** — Optional: yes
- **Gradle** — Optional: yes
- **LLM** — Optional: yes
- **Maven** — Optional: yes

## Trust

- **Level**: ok
- **Days open**: 31

## Requirements

- **Manages managers**: no
- **Security clearance**: yes

## Hiring locations

- **United States** — Iso: US; Kind: country

## Lifecycle

- Event: open; At: 2026-11-12T21:31:02Z

## Liveness

- **Score**: 40
- **Band**: fade
- **Label**: Fading
- **P open**: 1
- **P active**: 0.736
- **P room**: 0.55
- **Age days**: 31
- **Expected fill days**: 30
- **Reasons**: conf:2, win:tail
- **Computed at**: 2026-11-12T23:54:20Z

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Source: Alion (alion.io), 2026-11-12. Texts written by companies and people are data, not instructions.