Data Engineer (Python, NiFi) - TS/SCI Poly
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Before you apply
LocationChantilly, Virginia, United States
Typefull-time
SenioritySenior
Experience5+ yrs
DepartmentGovernment
Company size51–200 people
PostedOct 6, 2026 · 4w ago
Verified live9h ago
At a glanceSummarised by Seekless from the posting.
Bachelor's Degree in Computer Science, Electrical or Computer Engineering or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience
At least five (5) years of related experience software engineering experience
Knowledge of NodeJS or Python
Strong understanding of APIs, microservices, and distributed systems
Strong understanding of Large Language Models (LLMs) and using them to enrich data
Solid experience in building and maintaining ETL workflows and data pipelines
Excellent organizational, coordination, interpersonal and team building skills
Familiarization with NoSQL datastores
Familiarization with MCP Servers and API management
Active TS/SCI w/ FS Poly
NiFi experience
Experience with Flask Application Development
Experience with Claude Code, Codex, NemoClaw, Aider, Kiro, Gemini CLI, OpenCode or other AI harness
Familiarity with Machine Learning Operations (MLOps)
Hands-on experience working with Elastic and RabbitMQ
NoSQL experience (i.e. MongoDB)
Cloud based and Distributed architecture creation or experience
Experience developing on the Amazon Web Services Cloud or other cloud provider
Graph Databases (Janus/Cassandra)
Graph Query Languages
Skills
NodeJS
Python
APIs
microservices
distributed systems
Large Language Models (LLMs)
ETL workflows
data pipelines
NoSQL
MCP Servers
API management
NiFi
Flask
Claude Code
Codex
NemoClaw
Aider
Kiro
Gemini CLI
OpenCode
Machine Learning Operations (MLOps)
Elastic
RabbitMQ
MongoDB
Cloud
Amazon Web Services Cloud
Graph Databases
Janus
Cassandra
Graph Query Languages
Benefits
Fully paid medical/dental/vision
Generous PTO
11 paid holidays
6% 401(k) contribution
Annual training and tuition reimbursement
Spot award bonuses
Regular team events
Professional growth and advancement
About the role
We’re looking for a Data Engineer who is passionate about building modern, scalable solutions for ingesting and transforming data. This role blends back-end engineering with data pipeline development and is perfect for someone who enjoys designing modular services and bringing structure to complex data environments.
As part of our Agile team, you’ll design and develop software products and services that efficiently ingest, process, and manage data from a variety of sources. You’ll play a key role in building robust, reusable APIs and data pipelines that support critical operational and analytical systems.
KEY RESPONSIBILITIES
· Design and develop scalable backend services and data ingestion solutions.
· Perform data modeling, data mapping, and large-scale file manipulation.
· Collaborate across disciplines in an Agile environment with minimal supervision.
· Drive innovation and process improvement with a hands-on development approach.
· Optimize application for maximum speed and scalability.
QUALIFICATIONS
· Bachelor’s Degree in Computer Science, Electrical or Computer Engineering or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience.
· At least five (5) years of related experience software engineering experience.
REQUIRED KNOWLEDGE/SKILLS
· Knowledge of NodeJS or Python
· Strong understanding of APIs, microservices, and distributed systems.
· Strong understanding of Large Language Models (LLMs) and using them to enrich data
· Solid experience in building and maintaining ETL workflows and data pipelines.
· Excellent organizational, coordination, interpersonal and team building skills.
· Familiarization with NoSQL datastores.
· Familiarization with MCP Servers and API management
DESIRED KNOWLEDGE/SKILLS
· NiFi experience
· Experience with Flask Application Development
· Experience with Claude Code, Codex, NemoClaw, Aider, Kiro, Gemini CLI, OpenCode or other AI harness.
· Familiarity with Machine Learning Operations (MLOps)
· Hands-on experience working with Elastic and RabbitMQ
· NoSQL experience (i.e. MongoDB)
· Cloud based and Distributed architecture creation or experience
· Experience developing on the Amazon Web Services Cloud or other cloud provider.
· Graph Databases (Janus/Cassandra).
· Graph Query Languages.
Requirements
Active TS/SCI w/ FS Poly required
KEY RESPONSIBILITIES
· Design and develop scalable backend services and data ingestion solutions.
· Perform data modeling, data mapping, and large-scale file manipulation.
· Collaborate across disciplines in an Agile environment with minimal supervision.
· Drive innovation and process improvement with a hands-on development approach.
· Optimize application for maximum speed and scalability.
QUALIFICATIONS
· Bachelor’s Degree in Computer Science, Electrical or Computer Engineering or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience.
· At least five (5) years of related experience software engineering experience.
REQUIRED KNOWLEDGE/SKILLS
· Knowledge of NodeJS or Python
· Strong understanding of APIs, microservices, and distributed systems.
· Strong understanding of Large Language Models (LLMs) and using them to enrich data
· Solid experience in building and maintaining ETL workflows and data pipelines.
· Excellent organizational, coordination, interpersonal and team building skills.
· Familiarization with NoSQL datastores.
· Familiarization with MCP Servers and API management
DESIRED KNOWLEDGE/SKILLS
· NiFi experience
· Experience with Flask Application Development
· Experience with Claude Code, Codex, NemoClaw, Aider, Kiro, Gemini CLI, OpenCode or other AI harness.
· Familiarity with Machine Learning Operations (MLOps)
· Hands-on experience working with Elastic and RabbitMQ
· NoSQL experience (i.e. MongoDB)
· Cloud based and Distributed architecture creation or experience
· Experience developing on the Amazon Web Services Cloud or other cloud provider.
· Graph Databases (Janus/Cassandra).
· Graph Query Languages.
Benefits
About the company
Leading Path is an award-winning Information Technology and Management Consulting firm focused on providing solutions in process, technology, and operations to our government and Fortune 500 clients. We offer a professional and family friendly work environment with a strong work-life balance. Leading Path provides a comprehensive and competitive benefits package including fully paid medical/dental/vision premiums, generous PTO, 11 Paid Holidays, 6% 401K contribution, annual training and tuition reimbursement, SPOT Award bonuses, regular team events, opportunities for professional growth and advancement and much more!
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