Jobs in the United States

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Added 2 mins ago
Digital Power Controls Engineer
LayerZero Power Systems, LLC.
United States
We are seeking a skilled Digital Power Controls Engineer to develop embedded firmware for advanced power conversion systems and energy infrastructure products. This role will be responsible…
Added 2 mins ago
Lead AI Engineer
Perficient
DALLAS, TX
We are looking for a Lead AI Engineer to design, develop, and deploy scalable Generative AI and conversational AI solutions for enterprise environments. This role leads the implementation…
Added 2 mins ago
RU
Cloud Infrastructure Engineer / Azure Architect
Randstad USA
Plano, TX
- $59.75 to $69.75 USD / hour
…architecture,Docker,hypervisors,identity management,information technology,unit and integration tests,Jenkins,Kubernetes,Linux,Azure,Azure…
Added 4 mins ago
Senior Engineer I, BB Process Engineering
K&S
Fort Washington, PA
…communications, computing and industrial segments. We are seeking an engineer who with their related experience will provide solutions support of the development of Semiconductor Packaging…
Added 4 mins ago
Information Systems Security Engineer
Bridge Core (BCore)
Chantilly, VA
…supporting customer missions as a Information Systems Security Engineer in Chantilly,…
Added 6 mins ago
Senior Research Engineer
University of Georgia Staff
GA
The SER-CAT beamline engineer will be required to work as part of the operations development team with the SER-CAT operation manager and controls scientists. The applicant will work…
Added 9 mins ago
Software Engineer I - Top Secret
Parsons Technical Services, Inc.
Remote, United States
Collaborate with team members on vulnerability research integration activities
Added 12 mins ago
TPU Compute RTL Design Engineer
Google
Sunnyvale, CA · Austin, TX
…designs, with a specific focus on TPU architecture and its integration within AI/ML-driven systems.The AI and Infrastructure team is redefining what’s possible. We empower Google customers…
Added 14 mins ago
Senior Systems Engineer
CACI
Fort Meade, MD · Fort Meade
…that support national security objectives. As a Senior Systems Engineer, you will lead complex engineering initiatives throughout the entire system lifecycle, from concept development and…
Added 14 mins ago
Senior Test Engineer
ASRC Federal
Egg Harbor Township, NJ
ASRC Federal Advanced Research LLC (AFAR) is seeking a Senior Test Engineer to join our Common Support Services - Weather (CSS-Wx) team that supports the Federal Aviation…
Added 17 mins ago
IG
SDET
Insight Global
Remote, United States
- From $65 USD / hour
…Azure Web Apps. This is an individual contributor role. The engineer will execute test plans, build and maintain automated tests, investigate defects, and partner with developers and…
Added 17 mins ago
Nuclear Safety Engineer (Senior-Level)
Hanford Tank Waste Operations & Closure, LLC
Richland, WA
The Nuclear Safety Engineer responsibilities are:
Added 17 mins ago
Nuclear Safety Engineer (Mid-Career)
Hanford Tank Waste Operations & Closure, LLC
Richland, WA
The Nuclear Safety Engineer responsibilities are:
Added 18 mins ago
Security Engineer II, Ads Security
Amazon
BELLEVUE, WA
…products are inherently secure. We are seeking a talented Security Engineer to join our team, where you will have the opportunity to contribute to securing web applications and services…
Added 18 mins ago
Hardware Development Engineer I, Relay Fleet & Yard Devices
Amazon
Bellevue, WA
Collaborate cross-functionally (mechanical, thermal, power, RF, software, manufacturing) to gather requirements, define hardware architectures, and prepare for integration.
Added 18 mins ago
MC
Principal Software Engineer, Foundry Agents - CoreAI
Microsoft Corporation
Redmond, WA
- $142,800 to $331,200 USD / year
As a senior engineer within Foundry Agents, you will help build and evolve large‑scale, cloud‑native systems that span the full lifecycle of advanced agentic applications - from secure…
Added 18 mins ago
Mission Operations Systems Development Engineer, Optical Inter-Satellite Link
Amazon
Redmond, WA
As a Mission Operations Engineer on the Optical Inter-Satellite Link (OISL) team, you will own and execute the overall operational success of these payload and bus functions at a systems…
Added 18 mins ago
Embedded Software Engineer, Amazon Leo OISL Star Tracker
Amazon
Redmond, WA
We are seeking a Software Development Engineer to help drive design and implementation of software systems that control, monitor, and manage star tracker flight hardware, including…
Added 18 mins ago
Systems Engineer, Data Systems
Meta
Redmond, WA
Meta Reality Labs is seeking a Staff Systems Engineer to define and drive hardware systems architecture for next-generation ground truth data collection systems. In this role, you will own…
Added 18 mins ago
Hardware Dev Engineer I, Prime Air Electric Propulsion Subsystem
Amazon
Seattle, WA
We are seeking a Hardware Development Engineer I to join our Power Electronics team. In this role, you will be a contributor helping to solve difficult hardware engineering problems related…
Added 18 mins ago
Hardware Dev Engineer I, Prime Air, Drone Engineering
Amazon
Seattle, WA
We are seeking a Hardware Development Engineer I to join our Power Electronics team. In this role, you will be a contributor helping to solve difficult hardware engineering problems related…
Added 18 mins ago
Lead Forward Deployed Engineer
The Boeing Company
Seattle, WA
to join our growing Data Analytics Engineering & Integration team in Ridley Park, PA; Seattle, WA; or Hazelwood, MO. This team is tasked with transforming the way BDS data is sourced,…
Added 22 mins ago
Controls Engineer
Actalent
Washington, DC
Controls Engineer | Onsite in Washington, DC | Pay: 60k - 100k/yr | 12-month contract-to-hireJob DescriptionThe Controls Engineer designs, programs, tests, and commissions control systems…
Added 22 mins ago
A
Controls Engineer
Actalent
Macomb, MI
- $100,000 to $120,000 USD / year
Job Title: Controls EngineerJob DescriptionThe Controls Engineer designs, programs, tests, and commissions advanced control systems for aerospace automation projects. This role supports…
Added 22 mins ago
Design And Release Engineer
Actalent
Auburn Hills, MI
Job Title: Non-Rotating Components Design Release EngineerJob DescriptionThe Non-Rotating Components Design Release Engineer owns the end-to-end design, development, validation,…

Reflexive Concepts

Application Developer

Annapolis Junction, MD, United States

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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

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