Jobs in the United States

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Added 8 days ago
Senior Platform Engineer
Charles Schwab
Austin, TX
…changes, onboard users, strengthen security, and improve the developer experience. Your adaptability and technical expertise across Python, .NET, Java, SQL, APIs, and cloud-based data…
Added 8 days ago
Data Platform Engineer
JACK Entertainment
Cleveland, OH
Working knowledge of Python, R, or another language used for data processing and automation.
Added 8 days ago
Operations Engineer
SpaceX
Bastrop, TX · Redmond, WA
…low-latency internet to users all over the world. As an Operations Engineer on the Starlink Satellite team, you will drive improvement projects for our Materials Management and Satellite…
Added 8 days ago
AI Research Engineer, Multiomics and Imaging
Vanderbilt University
Nashville, TN
…Vanderbilt University, seeks a strong, self-motivated Research Engineer to help build the software, AI workflows, and computational methods that will power a new generation of biological…
Added 8 days ago
BE-4 Launch Operations Engineer
Blue Origin Personnel, LLC
Space Coast, FL
Experience with data processing and writing automated data scripts in Python
Added 8 days ago
Software Test Engineer II
Wabtec
Germantown, MD
This is an early-career Software Test Engineer II position intended for engineers with a minimum of two years of relevant experience in embedded systems and software validation. The…
Added 8 days ago
Application Developer
Reflexive Concepts
Hanover, MD
Reflexive Concepts is seeking an Application Developer to join our team!
Added 8 days ago
Automated Test Engineer
Reflexive Concepts
Hanover, MD
Reflexive Concepts is seeking an Automated Test Engineer to join our team!
Added 8 days ago
1000000567.DATA ENGINEER LEAD.INFO TECH SERVICES
Dallas County
Dallas, TX · TX
Added 8 days ago
ZT
Embedded Software Engineer, Automated Quality & Test
Zaden Technologies, Inc.
Huntsville, AL
- $130,000 to $165,000 USD / year
Zaden Technologies is seeking an Embedded Software Engineer specializing in Automated Quality & Test to join our team doing IVNV (independent validation and verification) and software…
Added 8 days ago
Mobile App Release Engineer II
USA-Medtronic MiniMed, Inc 1017
Northridge, CA
We are seeking a highly skilled Mobile App Release Engineer II to own and continuously improve the release lifecycle for our iOS and Android applications. This role is responsible for…
Added 8 days ago
PD
Senior DevSecOps Engineer
Pantheon Data
Reston, VA
- $100,000 to $150,000 USD / year
Pantheon Data is seeking a Senior DevSecOps Engineer to design, build, and operate the secure software delivery platform for ML-enabled workloads and applications in AWS GovCloud that…
Added 8 days ago
PD
Senior AI Engineer (Agentic Systems)
Pantheon Data
Reston, VA
- $140,000 to $180,000 USD / year
Pantheon Data is seeking a Senior AI Engineer (Agentic Systems) to design, build, and operate the agentic framework at the core of our AI platform in AWS GovCloud, serving workloads that…
Added 8 days ago
PD
Data Engineer (AI-ML Data Systems)
Pantheon Data
Reston, VA
- $140,000 to $175,000 USD / year
We are seeking a hands-on Data Engineer to help design, build, and operate the data foundations that support advanced analytics, AI/ML, and intelligent document processing solutions. The…
Added 8 days ago
J
Bilingual (Mandarin) Senior Data Engineer
Jobot
Montebello, CA
- $140,000 to $155,000 USD / year
If you are a Bilingual (English/Mandarin) Senior Data Engineer and want to join a growing, tech-savvy E-Commerce company with a dynamic team then apply now!
Added 8 days ago
Application Engineer
Keysight Technologies, Inc.
Budd Lake, NJ
Join Keysight’s power and general-purpose products team as a hands-on Application Engineer, connecting customer test challenges with practical solutions. You’ll work with customers and…
Added 8 days ago
Forward Deployed Senior AI Engineer
SAP
New York, NY
Solid foundational skills in software engineering, with proficiency in Python and hands-on experience in at least one cloud-native development environment.
Added 8 days ago
Grafana Data Engineer Senior
GD Information Technology, Inc.
United States
● Required Certification: Must possess and maintain DOD 8140 Certification (CompTia Security+) · ● Security Clearance Level: Must possess and maintain active TS/SCI clearance
Added 8 days ago
M
Google Cloud Engineer
Markon
Herndon, VA
- $170,000 to $200,000 USD / year
Markon is seeking an experienced Google Cloud Engineer (Mid–Senior) to support an Intelligence Community client in Chantilly, Virginia. This position will design, deploy, secure, and…
Added 8 days ago
SI
Lead Full Stack Security (Systems & Software) Engineering (GRC)
Salesforce, Inc.
WA · CO
- $172,500 to $260,100 USD / year
…Compliance (GRC) platform at Salesforce. As a lead full stack engineer, you own the architecture, technical roadmap, and delivery of the platform's core engines, including policy as code,…
Added 8 days ago
Senior DevOps Engineer
Exegy
St Louis, MO
We are looking for an experienced, forward-thinking Senior DevOps Engineer to join our newly formed DevOps team within our Market Data Engineering organization. In this role, you will be a…
Added 8 days ago
System Test Engineer - Advanced Machine Technology
RFA Engineering
Dubuque, IA
Must have a valid driver's license
Added 8 days ago
Staff Machine Learning Engineer_Voice AI
ServiceNow
San Diego, CA
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could…
Added 8 days ago
Senior Staff Machine Learning Engineer_Voice AI
ServiceNow
Santa Clara, CA
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could…
Added 8 days ago
Senior Staff AI-Native DevOps Engineer
ServiceNow
San Diego, CA
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could…

Reflexive Concepts

Application Developer

Hanover, MD, United States

Apply on reflexiveconcepts.catsone.com About employer

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Job details

Experience: 10+ years of experience with a Bachelor's degree
Posting language: English
Posted: Nov 2, 2026

Original job description

Reflexive Concepts is seeking an Application Developer to join our team!

In this hands-on backend role, you will build Java (and some Python) libraries and integration services that convert constantly changing data sources into a common, reusable schema used across the organization, while also helping manage MongoDB services and day-to-day Linux operations.

Requirements:

Design, develop, and maintain backend libraries and services that transform diverse data formats into a common, reusable schema consumed by multiple applications across the organization. This is a hands-on technical role focused primarily on Java development, with secondary responsibility for Python-based components where needed. There is no UI work; the emphasis is on building robust libraries and integration services that can reliably ingest, interpret, and convert constantly changing data sources into a standardized internal model.

In addition to core development responsibilities, this role includes a system administration component. The engineer will help manage and optimize MongoDB services, work within a Linux ecosystem, and perform operational tasks such as upgrading servers, installing RPMs, monitoring services, and troubleshooting environment issues.

Key responsibilities include:

Designing and implementing data ingestion and transformation logic
Creating and maintaining shared libraries for common data formats
Ensuring performance and scalability
Contributing to architectural decisions around data modeling and integration patterns
Collaborating through modern development practices, including Git-based source control, code reviews, and continuous improvement of development workflows

The ideal candidate has deep experience in Java (and familiarity with Python), a strong understanding of working with varied data formats (e.g., JSON, XML, CSV, and custom structures), and practical experience administering Linux-based systems and MongoDB in production environments. Strong problem-solving skills, attention to detail, and a willingness to engage in both development and operational tasks are critical for success in this role.

Qualifications:

10+ years of experience with a Bachelor's degree
Bachelor's degree in Electrical Engineering or Computer Science or Computer Engineering or Mathematics. Four (4) years of equivalent related military experience may be substituted for the Bachelor's degree
or Master of Computer Science or Computer Engineering
Shall have knowledge and experience in three (3) or more of the following:
System Requirements Analysis
Software System Design
Software System Development
Software System Integration
Software System Testing
Experience in four (4) or more of the following:
Developing software applications in C, C++, or Java
Developing software applications for Unix, Linux, or Windows environments
Developing DLLs for the Windows environment
Development on computer telephony platforms using computer technology cards such as Dialogic
Object-oriented programming
Working knowledge of common protocols/standards such as TCP/IP, SNMP, H.323, X.25, 802.11, 802.16, SIP, MEGACO, or MGCP
Web development, with proven knowledge of XML, PHP, MySQL, ColdFusion, or Apache
Script writing using Perl, Python, Bourne shell, C shell, or other proprietary scripting languages
Database experience with Sybase, Oracle, or Microsoft
Reverse engineering and analysis of software
Kernel knowledge of Unix (Linux)
Bit-level data analysis

Apply on reflexiveconcepts.catsone.com About employer

More about this job

Skills

Oracle Java
Python
MongoDB
Linux
System administration
Troubleshooting
Data modelling
Git
Process improvement
Problem solving
Attention to detail
Electrical engineering
Computer science
Computer engineering
ICT system integration
C
C++
UNIX
Microsoft Windows
Use computer telephony integration
Computer technology
Object-oriented programming
SNMP
SIP
Web development
PHP
MySQL
Adobe ColdFusion
Perl
Bourne Shell
C shell
Oracle
Reverse engineering
Data analysis

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Work requirements

Jobs in the United States