Data Engineer (Python, NiFi) - TS/SCI Poly

Leading Path Consulting; Chantilly; On-site; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Medical/dental/vision coverage

Paid time off (PTO)

11 paid holidays

401K contribution

Job summary

Leading Path Consulting is seeking a Data Engineer to design and develop scalable backend services and robust data pipelines. The role blends backend engineering with data workflow development to manage complex data environments.

You will contribute to modular service design, data modeling, and API-rich pipelines within an Agile team, promoting efficiency, scalability, and innovation across projects.

Qualifications

• Bachelor’s Degree in Computer Science, Electrical or Computer Engineering or a related technical discipline, or the equivalent combination of education, training, or experience.
• Minimum five years of software engineering experience.

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.

Skills

NodeJS

Python

APIs & microservices

Distributed systems

ETL workflows

NoSQL datastores

API management

Elastic

RabbitMQ

Graph Databases

Graph Query Languages

Cloud architecture

AWS Cloud

Education

Bachelor’s Degree in Computer Science, Electrical or Computer Engineering or a related technical discipline

Tools

NiFi

Flask

Claude Code

Codex

NemoClaw

Aider

Kiro

Gemini CLI

OpenCode

MongoDB

Job description

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.

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.

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!