4A Consulting, LLC
Senior Data Scientist / Engineer
Baltimore, Maryland · Senior
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odds of building a lasting career here
Thin sponsorship signal and lottery-bound (~15% per draw). A low-probability bet with your clock running. Prioritize cap-exempt roles and proven entry-level sponsors first.
Lottery odds assume a STEM candidate.
Personalize to your clock →H-1B wage level
the lottery is wage-weighted — each level is one more entry
The bottom of this range ($90) is below the Level I prevailing wage of $86,861. An H-1B cannot be filed below the prevailing wage, so an offer at the floor of this band could not be sponsored as posted.
DOL prevailing wage, 2026-27 wage year · Data Scientists (15-2051) · Baltimore-Columbia-Towson, MD. Wage level is derived by USCIS from the offered wage, occupation and worksite; the occupation shown is inferred from the job title.
Employer immigration record
from this employer's Department of Labor filings
Third-party placement is common here
Files H-1B transfers
Sourced from Department of Labor LCA, PERM and prevailing-wage disclosure data. Employer matching is by name, so figures may be split across an employer's legal entities. Absence of a filing means none appears in our copy of the data, not that none exists.
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About the role
- Company Overview At 4A Consulting, we turn complexity into opportunity.
- We pride ourselves on an agile, collaborative approach that helps organizations navigate challenges and seize emerging opportunities in a rapidly evolving digital landscape.
- Equal Opportunity Statement 4A Consulting is an Equal Opportunity Employer committed to an inclusive hiring process.
Responsibilities
- Develop Analytics Solutions: Design, implement, and maintain advanced data processing and entity resolution pipelines using Python and SQL on enterprise data platforms.
- Data Hygiene & Management: Clean, transform, and manage large-scale datasets from diverse, complex sources, ensuring absolute data integrity, reliability, and security.
- Performance Optimization: Optimize complex SQL queries and database operations to ensure efficient data access, processing, and scalability.
- End-to-End Delivery: Support data validation, testing, deployment, and post-implementation monitoring in a fast-paced environment.
Requirements
- Master's and 10+ years of experience, Bachelor's and 12+ years of experience or 18+ years in lieu of a degree.
- Bachelor's degree in Statistics, Applied Mathematics, Computer Science, or Information Science with experience in NLP, Text Processing, Information Extraction, Python, SQL, Regex and specialized libraries/frameworks.
- Strong practical experience with Natural Language Processing (NLP), Text Processing, and Information Extraction including:
- Practical knowledge of Named Entity Recognition and Address Standardization to extract and clean unstructured text data.
- Experience applying TD-IDF and Cosine Similarity for text comparisons and information retrieval.
- Advanced SQL proficiency for complex data querying, optimization, and database operations.
- Familiarity with specialized libraries and frameworks including:
- Familiarity with code reviews, version control, and maintaining data security and reproducibility standards.
- Strong practical experience with Natural
Nice to have
- Prior experience delivering IT or data initiatives within federal, state, or local government environments
- Experience retrieving, migrating, and manipulating data from legacy and distributed systems, including PostgreSQL, DB2, Oracle, SQL Server, and Hadoop, as well as unstructured flat files.
- Experience utilizing Jenkins to automate continuous integration, testing, and deployment (CI/CD) for data validation pipelines.
- Experience with pipeline automation tools to schedule and monitor complex data cleansing jobs.
- Strong ability to translate complex algorithmic decisions (such as probabilistic match thresholds) into clear business logic for executive leadership and non-technical stakeholders.
- Excellent problem-solving skills and proven verbal/written communication skills when collaborating across cross-functional teams.
- Work on high-impact projects across federal and commercial clients.
Compensation
- $0k-$0k
Company info
- Founded in 2014 and headquartered in Baltimore, MD, we are a women-owned, boutique consulting firm specializing in delivering innovative, data-driven solutions to both the Federal Government and Fortune 500 clients.
Equal opportunity
- 4A Consulting is an Equal Opportunity Employer committed to an inclusive hiring process.
- Applicants requiring a reasonable accommodation due to a disability may contact accommodations@4a-consulting.com.
- This email is intended solely for accommodation requests.
- Please note that 4A Consulting participates in the federal E-Verify program.
Visa & Work Authorization
- Upon hire, we will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the US
This listing is sourced directly from 4A Consulting, LLC's careers page and normalized into a canonical job model.