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General information

Requisition # R67796 Locations USA-Remote Work Posting Date 05/15/2026 Security Clearance Required None Remote Type Fully Remote Time Type Full time

Description & Requirements

Elevate your career with MANTECH International Corporation! Join a dynamic team dedicated to national security through cutting-edge technology. Since 1968, MANTECH has led in delivering advanced solutions to government intelligence, the Department of Defense, and Federal Civilian sectors. Dive into innovation in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Your journey to impactful work and rapid growth starts now—be extraordinary at MANTECH!

MANTECH seeks a visionary Senior Principal Cyber Security Engineer to serve as a technical expert within our Enterprise Cyber Security Team. Reporting directly to the CISO’s office, you will not only administer systems, you will also engineer the resilient, automated, and AI-enhanced security frameworks that protect our most critical corporate assets.

This is a role for a builder-breaker: an expert who can code their way out of a bottleneck, think like an adversary to harden our perimeter, and strategically navigate the security implications of the "Agentic AI" revolution.

Responsibilities include but are not limited to:

• Infrastructure as Code (IaC): Design and maintain immutable security environments using tools like Terraform and Ansible to ensure consistent, reproducible infrastructure.
• Automation & Tooling: Develop custom middleware and security tools in Python, Go, or Rust to automate incident response and bridge platform gaps.
• CI/CD & Pipeline Security: Embed automated security gates (SAST/DAST/SCA) directly into internal development pipelines to ensure secure software delivery.
• Cloud & Container Governance: Secure and monitor Azure/AWS/GCP, Kubernetes, and SaaS platforms through configuration auditing and continuous monitoring. API & Secret Management: Oversee the security lifecycle of internal APIs, focusing on secure connectivity and robust credential/secrets management.
• AI & Agentic Strategy: Govern Generative AI deployments and autonomous agents, focusing on prompt injection mitigation and preventing "non-human" privilege escalation.
• Offensive Engineering & Threat Modeling: Conduct continuous "Purple Team&quot exercises and deep-dive threat modeling to proactive discover and mitigate architectural vulnerabilities.

Minimum Qualifications

• Bachelor’s or Master’s degree in Computer Science, Cyber Security, or a related STEM field.
• 10+ years of progressive experience in Cyber Security Engineering, with at least 3 years in a Principal or Lead capacity.
• Advanced capability in Python or Go for security automation and API integration.
• Expert-level experience securing Azure, AWS, or GCP environments, including
• serverless functions and container orchestration (Kubernetes).
• Azure Security Associate (AZ-500), Certified Kubernetes Security Specialist (CKS), or CISSP.

Preferred Qualifications

• Experience with the OWASP Top 10 for LLMs and securing vector databases (e.g., Pinecone, Milvus).
• OSCP/OSWE (Offensive Security), CASE (Certified AI Security Expert), or CISSP-ISSAP.
• Contributions to open-source security projects, published research, or speaking
• engagements at conferences like DEF CON, Black Hat, or RSAC.

Clearance Requirements:

• U.S. Citizen with the ability to obtain/maintain a Top Secret security clearance

Physical Requirements

• Must be able to remain in a stationary position 50% of the time.
• Constantly operates a computer and other office productivity machinery.

The projected compensation range for this position is $148,200.00-$263,000.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.
MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.
If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.

Meta is seeking talented engineers to join our teams in building cutting-edge products that connect billions of people around the world. As a member of our team, you will have the opportunity to work on complex technical problems, build new features, and improve existing products across various platforms, including mobile devices and web applications. Our teams are constantly pushing the boundaries of user experience, and we're looking for passionate individuals who can help us advance the way people connect globally. If you're interested in joining a world-class team of industry veterans and working on exciting projects that have a significant impact, we encourage you to apply.ResponsibilitiesCollaborate with cross-functional teams (product, design, operations, infrastructure) to build innovative application experiences* Implement custom user interfaces using latest programming techniques and technologies* Develop reusable software components for interfacing with back-end platforms* Analyze and optimize code for quality, efficiency, and performance* Lead complex technical or product efforts and provide technical guidance to peers* Architect efficient and scalable systems that drive complex applications* Identify and resolve performance and scalability issues* Work on a variety of coding languages and technologies* Establish ownership of components, features, or systems with expert end-to-end understandingQualificationsBachelor's degree in Computer Science, Computer Engineering, relevant technical field, or equivalent practical experience* Track record of setting technical direction for a team, driving consensus and successful cross-functional partnerships* 6+ years of programming experience in a relevant language or 3+ years of experience + PhD* Experience building maintainable and testable code bases, including API design and unit testing techniques Experience building and shipping high quality work and achieving high reliability* Experience improving quality through thoughtful code reviews, appropriate testing, proper rollout, monitoring, and proactive changes* Experience with developing machine learning models at scale from inception to business impact* Exposure to architectural patterns of large scale software applications* Experience with scripting languages such as PyTorch, TensorFlow, Python, JavaScript or Hack* 2+ years of experience in one or more of the following areas: machine learning, recommendation systems, pattern recognition, data mining, artificial intelligence, or a related technical field* Knowledge developing and debugging in C/C++ and Java* Demonstrated ability to integrate AI tools to optimize/redesign workflows and drive measurable impact (e.g., efficiency gains, quality improvements)* Experience adhering to and implementing responsible, ethical AI practices (e.g., risk assessment, bias mitigation, quality and accuracy reviews)* Demonstrated ongoing AI skill development (e.g., prompt/context engineering, agent orchestration) and staying current with emerging AI technologies

ABOUT THE POSITION

We are looking for an experienced Senior Full-Stack Developer with a strong background in AI engineering to join our growing team and help design, build, and deploy robust, intelligent software solutions for our clients. In this role, you will lead and deliver high-impact full-stack applications in collaboration with renowned clients in the European industry.

You will work hands-on to build end-to-end products, integrate multi-modal datasets, and embed predictive and generative AI features into scalable user interfaces and backend architectures. This is more than a job — it’s an opportunity to help shape the technical future of our company and drive innovation.

ABOUT SPHERE ENERGY

We are a young, dynamic and technology-driven company, committed to developing targeted AI-driven solutions that revolutionize the development of products in the broad field of engineering.

Tasks

KEY RESPONSIBILITIES

• End-to-End Development: Design, build, and maintain scalable, production-grade full-stack web applications that seamlessly integrate AI features, LLM workflows, and client-specific enterprise data.
• Architecture & API Design: Craft robust backend microservices, design efficient database schemas, and build secure APIs capable of handling high-throughput inference and data streaming.
• AI Integration & Orchestration: Embed predictive models and generative AI capabilities into user-facing products using orchestration frameworks and vector databases.
• CI/CD & DevOps Excellence: Establish modern DevOps and MLOps standards, building reusable pipelines for clean code deployment, automated testing, containerization, and system monitoring.
• Technical Strategy & Leadership: Translate complex business requirements into technical blueprints, bridging the gap between raw AI capability and intuitive user experiences. Advise stakeholders on technical strategy, clearly communicating architectural tradeoffs regarding cost, latency, performance, and scalability.

Requirements

QUALIFICATIONS

• Master’s or Bachelor’s degree in Computer Science, Software Engineering, or a related field, with proven experience building enterprise-scale full-stack applications with integrated AI components.
• Full-Stack Proficiency: Strong command of modern frontend frameworks and advanced proficiency in backend languages, specifically Python (FastAPI, Django) and/or Node.js/TypeScript.
• Expert command of software design patterns, clean code principles, distributed systems, microservices architecture, and cloud infrastructure orchestration.
• Leadership & Code Quality: Ability to define and execute technical roadmaps paired with experience mentoring engineering teams, conducting code/architecture reviews, and enforcing engineering excellence.

Benefits

WHAT WE OFFER

• The opportunity to drive leading technology solutions in real-world applications
• A high-impact, client-facing role with real responsibility and room for initiative
• A collaborative and dynamic work environment that values vision and impact
• Opportunity to actively contribute to a young company’s growth
• Flexible working hours and hybrid work models

HOW TO APPLY

If you’re excited to shape the future of battery technology and drive real change with leading industry players, please share your resume and an additional cover letter.

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