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Full Stack Software Engineer
Globus Medical Inc
Audubon, PA
…full technology stack. The ideal candidate combines strong software engineering fundamentals with expertise in modern frontend development, backend systems, UI/UX design, and scalable…
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Mechanical Engineer III
Quanta Power Solutions, LLC
Houston, TX
Support development and maintenance of engineering standards and best practices.
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Senior Embedded Firmware Engineer
ECS FEDERAL LLC
Chantilly, VA
We're looking for an Embedded Firmware Engineer to design, develop, and maintain embedded software for our hardware products. You will work closely with hardware, software, and product…
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Senior Electrical Engineer
ECS FEDERAL LLC
Chantilly, VA
…requirements, you will collaborate with a multidisciplinary engineering team of RF Engineers, Mechanical Engineers, and Software Engineers, to derive solutions, perform verification…
Added just now
UE
Senior Scheduler (53611)
Urban Engineers
Wayne, PA · Columbia, MD · MOUNT LAUREL, NJ · PHILADELPHIA, PA
- $156,000 to $170,000 USD / year
Advanced proficiency in Primavera P6 scheduling software, including schedule development, analysis, and maintenance.
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UE
Scheduler (53614)
Urban Engineers
Wayne, PA · Columbia, MD · MOUNT LAUREL, NJ · PHILADELPHIA, PA
- $124,800 to $145,600 USD / year
Proficiency in Primavera P6 scheduling software, including schedule development, updates, and analysis.
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Associate Director, Infrastructure & Operations Solution Delivery Partner
Otsuka America Pharmaceutical, Inc
Princeton, NJ · Rockville, MD
…These include cloud and on-premises infrastructure, platform engineering, hosting, compute, storage, backup, recovery, network connectivity, and infrastructure automation; endpoint…
Added 1 min ago
Software Product Manager
CMC
GA
Experience working with Agile software development teams
Added 1 min ago
GH
Implementation Specialist
GE HealthCare
Washington, DC
- $60,000 to $90,000 USD / year
…infrastructure portfolio after an initial purchase of hardware or software. Patient care infrastructure includes patient monitoring, telemetry, Carescape network, Carescape Gateway,…
Added 1 min ago
Computer Systems Engineer - Pega Resource
Leidos
Washington, DC
…part in designing, developing, and maintaining high-quality software solutions as well as operational support to the program. You will be involved in all phases of the software development…
Added 1 min ago
IT
Test Development and Database Lead
INDUS Technology, Inc.
Port Hueneme, CA
- $85,000 to $120,000 USD / year
The Test Development and Database Lead provides specialized technical and test management support to the Naval Surface Warfare Center, Port Hueneme Division (NSWC PHD), Modernization and…
Added 1 min ago
Sr. Software Engineer, MarTech (Remote)
CrowdStrike
Washington, DC
5+ years of software or data engineering experience, including 2+ years taking LLM or ML solutions to production.
Added 1 min ago
Sr. Enterprise Account Executive
Infotech Current Openings
Gainesville, FL
Infotech® is seeking a Sr. Enterprise Account Executive to drive the full sales cycle for our flagship enterprise software portfolio, connecting infrastructure construction leaders with…
Added 1 min ago
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Senior Support Engineer - Oracle Health
Oracle
Washington, DC
- $52,200 to $132,400 USD / year
Experience collaborating with software engineering and development teams to investigate product defects.
Added 1 min ago
Capital One Shopping Tech, Data Engineer 5 (Remote- Eligible)
Capital One
Washington, DC
Collaborate with and across Agile teams to design, develop, test, implement, and support technical solutions in full-stack development tools and technologies
Added 1 min ago
C
Senior Full Stack Engineer – .NET & C#
Cognizant
Washington, DC
- $86,000 to $99,000 USD / year
7+ years of software development experience , including strong hands-on experience with Java/J2EE and Spring Boot .
Added 1 min ago
C
Senior .NET Full Stack Developer – C#
Cognizant
Washington, DC
- $86,000 to $99,000 USD / year
7+ years of software development experience , including strong hands-on experience with Java/J2EE and Spring Boot .
Added 1 min ago
C
Senior .NET Full Stack Engineer with C#
Cognizant
Washington, DC
- $86,000 to $99,000 USD / year
7+ years of software development experience , including strong hands-on experience with Java/J2EE and Spring Boot .
Added 1 min ago
C
Senior Java Full Stack Engineer – Spring Boot & AWS
Cognizant
Washington, DC
- $86,000 to $99,000 USD / year
7+ years of software development experience using Java/J2EE technologies .
Added 1 min ago
Special Operations Cognitive Performance Specialist (National Capital Region)
Trinzic
Washington, DC
At KBR, we deliver science, technology and engineering solutions to governments and companies around the world. KBR employs approximately 37,000 people worldwide with customers in more than…
Added 1 min ago
Backend Developer
SHINE Systems & Technologies
Washington, DC
9 Years of experience in Software or Systems Engineering roles or a highly related field of work with similar scope and responsibilities.
Added 1 min ago
Special Operations Cognitive Performance Specialist (National Capital Region)
Trinzic
Washington, DC
At KBR, we deliver science, technology and engineering solutions to governments and companies around the world. KBR employs approximately 37,000 people worldwide with customers in more than…
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Lead Decision Support Analyst – Python Developer
Highmark Health
Washington, DC
…application developers focused on building and maintaining scalable software applications. The incumbent takes an enterprise-wide architectural view to drive the technical execution of…
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Engineer II, Google Cloud
PwC
Washington, DC
…applications on Google Cloud, supporting work across the full software development lifecycle from new product ideas to modernization efforts. As an Associate you will learn through hands-on…
Added 1 min ago
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Program Manager/ Implementation Lead (Ketryx)
Cognizant
Washington, DC
- $83,000 to $94,500 USD / year
…leading the implementation of Ketryx and associated quality and engineering platforms in a regulated environment. You will be a valued member of the delivery team and work collaboratively…

OSec

Senior Software and Architecture Engineer

New York, NY, United States

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Job details

Posting language: English
Posted: Nov 10, 2026

Original job description

We’re hiring for a hybrid position, preferring someone based in New York City, but will consider strong candidates on the East Coast. We need an engineer with 15+ years of professional experience who is comfortable taking the lead - someone who can own architectural decisions, set technical direction, and mentor teammates while staying hands-on. CTEM experience is a plus. You’ll value continuous learning, have a genuine interest in cyber security, and communicate clearly.

Our existing services are built on Django (Python) and React (TypeScript), hosted on AWS, with many more services still to build.

This is a startup. That means you wear every hat, and the work has to get done now. We’re looking for a relentless go-getter who thrives under pressure, moves with urgency, and doesn’t wait around for permission. Decisions need to be made quickly and correctly. Communication is everything, and so is close collaboration with both our penetration testers and the business. If that energy excites you rather than exhausts you, you’ll fit right in.

Responsibilities

Lead the design and implementation of solutions and tooling for the CTEM platform.
Own key architectural decisions and guide the technical direction of new services.
Collaborate closely with our penetration testing teams and the business to ensure the tools we build are effective and deliver meaningful information to assessment teams in the field.
Mentor and support other engineers while remaining hands-on in the codebase.
Integrate open-source security tooling - sometimes written in languages outside our core stack - into the platform.

Nice to Have

CTEM platform experience - a plus, but not required.
Experience across a range of programming languages. Security tooling often means integrating open-source tools written in other languages, so an appetite for picking up new ones goes a long way.
API design and documentation.
Message processing and queueing systems.
Experience with penetration testing tools (Nuclei, Nmap, etc.).

Desired Experience / Skills

15+ years of relevant professional software engineering experience.
Comfortable taking the lead on technical decisions and project direction.
Strong understanding of Django and the Django REST Framework.
Proficiency across the Python ecosystem.
TypeScript / JavaScript (React).
Relational databases (PostgreSQL).
AWS (EC2, EBS, Lambda, ECS).
Excellent spoken and written communication skills.

Due to the nature of the security industry tooling, whilst the main development languages at OSec are Python and JavaScript, there will be times where open source tools written in other languages will be required to be integrated into the system.

Personal Qualities

A relentless go-getter with a serious bias for action - you move fast, take ownership, and get things done.
Built for startup pace. You’re comfortable wearing every hat and treating “it needs to be done now” as the default.
A sharp, decisive thinker who can make calls quickly - and correctly - under pressure.
An outstanding communicator who keeps everyone aligned, in writing and out loud.
A natural collaborator who works seamlessly with penetration testers and the business alike.
A confident leader who takes ownership and drives decisions.
Highly professional, with outstanding attention to detail.
Self-motivated, dependable, and unflappable.

Benefits

Flexible working hours;
Competitive health packages;
Life insurance;
401k plan with company contributions
Maternity and parental leave;
On-the-job training opportunities; and
Paid, flexible vacation.

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More about this job

Skills

Cybersecurity
Django
Python
React
TypeScript
AWS
Penetration testing
Programming languages
API development
Documentation
Nmap
JavaScript
PostgreSQL
Communication skills
Attention to detail

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