Tcp/udp

Tcp/udp Engineer Jobs

2 jobs found

1mo ago

Network Software Engineer

Johns Hopkins Applied Physics Laboratory (APL) Laurel, MD

Laurel, MD

1mo ago Closed

$100k - $245k/yr Full time Developer Engineering Linux Networking

This position is no longer accepting applications (closed Sep 18, 2026).

Job Description

Johns Hopkins Applied Physics Laboratory (APL) is seeking an experienced Network Software Engineer to design, develop, integrate, and test communications and network software supporting Government missions. The role focuses on protocol implementation, network services, and distributed systems that operate reliably in degraded or contested environments.

Responsibilities

Contribute technically and provide leadership on software systems that support critical Government communications.
Drive thought leadership in communications systems and application software development by collaborating with colleagues to propose new concepts and approaches for complex problems.
Architect, develop, integrate, and test software-based command and control, secure communication, and networking systems in operationally realistic environments, working with sponsors to support mission success.
Coordinate with technical specialists across disciplines as part of a multidisciplinary team.
Produce technical reports and memoranda detailing work and present results to sponsors and the technical community.

Required Qualifications

Bachelor’s degree (or higher) in Computer Science, Computer Engineering, or a related technical discipline.
At least ten years of relevant software systems development experience, ideally in a Linux environment.
Strong knowledge of networking fundamentals, including examples such as TCP/IP, UDP, routing, switching, DNS, and HTTP/HTTPS.
Proven software development capability using current best practices with several of the following: C, C++, Python, Rust, and BASH scripting.
Experience creating approaches and using debugging tools for networked systems, such as tcpdump, Wireshark, netstat, and ss.
Strong interpersonal skills and the ability to work independently and within a multi-organizational team.
Willingness and ability to travel on an as-needed basis.
An active Top Secret security clearance and the ability to ultimately obtain a TS/SCI level clearance; U.S. citizenship is required. Selection triggers participation in a government security clearance investigation and must meet access requirements for classified information.

Preferred / Additional Qualifications

A Master’s degree or PhD in Computer Science, Computer Engineering, or a related technical discipline.
At least twenty years of relevant software systems development experience.
Experience leading software projects and managing teams of engineers.
Exposure to U.S. Government and military communication systems and network technologies, including voice and video streaming or conferencing software.
Experience implementing or adapting network protocols (application, transport, routing, or custom protocols).
Deep knowledge of Linux networking internals, including kernel stack, netfilter, eBPF, and XDP.
Experience developing and troubleshooting real-time, low-latency, or high-bandwidth systems.
Experience with container networking and orchestration, including Kubernetes, CNI plugins, and service meshes.
Familiarity with software-defined networking (SDN) and network function virtualization (NFV).
Experience and interest in DevOps practices, processes, and tools.
Experience applying software expertise across full project lifecycles, including requirements analysis, design, implementation, and testing.
An active Top Secret clearance with SSBI and recent adjudication for access to Sensitive Compartmented Information.

Technologies

TCP/IP, UDP, DNS, HTTP/HTTPS
C, C++, Python, Rust, BASH scripting
tcpdump, Wireshark, netstat, ss
Linux

Compensation

Minimum rate: $100,000 annually
Maximum rate: $245,000 annually

The referenced pay range reflects JHU APL’s good faith belief at the time of posting. Actual compensation may vary by geographic location, work experience, market conditions, education/training, and skill level, with consideration for internal parity. For salaried employees scheduled to work less than 40 hours per week, annual salary will be prorated based on the number of hours worked. APL may offer bonuses or other compensation per internal policy and/or contractual designation, including possible sign-on bonus, relocation benefits, locality allowance, or discretionary payments for exceptional performance.

Benefits

Robust education assistance program
Unparalleled retirement contributions
Healthy work/life balance
Comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development
Applications accepted on a rolling basis

Role Location

Laurel, MD (onsite)

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1mo ago

Senior Software Engineer

Trident Research LLC Austin, TX

Austin, TX

1mo ago Closed

$127k - $139k/yr Full time Senior .NET C Sharp

This position is no longer accepting applications (closed Sep 4, 2026).

Job Description

Trident Research LLC is hiring a Senior Software Engineer in Austin, TX for an onsite role. In this position, you will design, develop, test, document, and maintain high-quality software products while applying strong technical leadership and independent judgment to solve complex engineering problems.

What you will do

Design, develop, test, debug, and maintain software applications and components.
Build software using C/C++ with object-oriented programming principles.
Develop C# applications using WPF, XAML, and the Model-View-ViewModel (MVVM) design pattern.
Create reusable, modular, and maintainable software components.
Work in Linux or Unix environments as required.
Develop and troubleshoot networking and communications software, including serial, TCP, UDP, and socket-based applications.
Draft, review, and maintain software design documentation.
Develop and review software test plans, test procedures, and related quality documentation.
Implement designs according to approved requirements, specifications, and software design documents.
Follow internal and external coding, documentation, and development standards.
Manage and contribute to Git repositories and version-control workflows.
Analyze technical risks, set priorities, and take action to resolve complex issues.
Complete assignments on or ahead of schedule while maintaining quality and thorough documentation.
Collaborate with engineering teams, customers, and other stakeholders.
Provide technical leadership by proposing practical, creative, and well-supported solutions to complex problems.
Support continuous improvement of engineering processes, tools, and practices.
Maintain confidentiality of company, customer, and project information.
Perform other duties as assigned.

What you bring

Bachelor’s degree in Software Engineering, Computer Science, or a related technical field (equivalent education and experience may be considered).
At least 11 years of professional software development experience.
Strong proficiency in C/C++ and object-oriented programming.
Professional experience with C# and WPF, including GUI development with XAML and experience with MVVM.
Experience working in Linux or Unix environments.
Experience with networking or communications technologies, including Serial communications, TCP/IP, UDP, and Socket programming.
Experience with Git and software repository management.
Ability to create and review technical documentation, including trade studies, requirements, software specifications, design documents, test plans and procedures, and user procedures.
Strong written and verbal communication skills.
Strong organizational, planning, multitasking, and prioritization skills.
Ability to exercise sound judgment, solve complex problems, and work effectively under changing deadlines.
Ability to maintain confidentiality and handle sensitive information appropriately.

Technologies

C/C++, C#, Windows Presentation Foundation (WPF), XAML
Model-View-ViewModel (MVVM)
Linux, Unix
Serial communications, TCP, UDP, TCP/IP, socket-based applications
Git

Employment details

Job type: Full-time
Work location: In person
Pay: $127,000.00 to $139,000.00 per year

Benefits

401(k) 5% match
AD&D insurance
Dental insurance
Dependent health insurance coverage
Disability insurance
Health insurance
Health savings account
Life insurance
Military leave
Paid holidays
Paid time off
Parental leave
Prescription drug insurance
Relocation assistance
Vision insurance

Preferred qualifications

Experience supporting government or defense-related software development programs.
Ability to obtain a government security clearance.
Experience working within formal systems engineering or software development processes.
Experience providing technical leadership or mentoring to other engineers.

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