Tcp/udp

Tcp/udp Developer 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 Engineer Engineering Linux Networking

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

Job Description

Johns Hopkins Applied Physics Laboratory (APL) is hiring an experienced Network Software Engineer for onsite work in Laurel, MD supporting Government communications missions.

Responsibilities

Contribute technically and provide leadership on software systems supporting critical Government communications.
Share thought leadership by collaborating with colleagues to propose new approaches and concepts for challenging communications and application software problems.
Architect, develop, integrate, and test software-based command and control, secure communications, and networking systems in operationally realistic environments.
Work closely with mission sponsors to support mission success.
Collaborate with specialists across disciplines as part of a multi-organizational team.
Document work through technical reports and memoranda and present findings to sponsors and the technical community.

Requirements

Bachelor’s degree (or higher) in Computer Science, Computer Engineering, or a related technical discipline.
10+ years of relevant software systems experience, ideally with Linux.
Strong networking fundamentals, including: TCP/IP, UDP, routing, switching, DNS, and HTTP/HTTPS.
Proven ability to develop software using current best practices, with experience in several of: C, C++, Python, Rust, BASH scripting.
Experience creating debugging approaches and using tools such as tcpdump, Wireshark, netstat, and ss.
Excellent interpersonal skills; able to work independently and within a multi-organizational team.
Willingness and ability to travel as needed.
Security clearance: Active Top Secret clearance required; must be able to ultimately obtain TS/SCI. U.S. citizenship required. If selected, the candidate will be subject to a Government security clearance investigation and must meet requirements for access to classified information.

Preferred Qualifications

Master’s degree or PhD in Computer Science, Computer Engineering, or a related technical discipline.
20+ years of relevant software systems experience.
Experience leading software projects and managing teams of engineers.
Exposure to US Government and military communications 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 Linux networking internals knowledge (kernel stack, netfilter, eBPF, XDP).
Experience developing and troubleshooting real-time, low-latency, or high-bandwidth systems.
Experience with container networking and orchestration (Kubernetes, CNI plugins, service meshes).
Familiarity with software-defined networking (SDN) and network function virtualization (NFV).
Experience applying DevOps practices, processes, and tools.
Experience applying software expertise across full project lifecycles, including requirements analysis, design, implementation, and testing.
Security clearance: Active Top Secret clearance with SSBI and recently adjudicated 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: $100,000 annually
Maximum: $245,000 annually
Pay range is based on JHU APL’s good faith belief at the time of posting.
Actual compensation may vary based on 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 hours worked.
APL may offer bonuses or other compensation per internal policy or contractual designation.
Additional compensation may be available, such as 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

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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 (onsite) to design, develop, test, document, and maintain software products. The position combines hands-on engineering across C/C++, C#, WPF/XAML, and Linux/Unix with technical leadership and independent problem-solving.

Key Responsibilities

Design, develop, test, debug, and maintain software applications and components.
Build software in C/C++ using 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 communications, TCP, UDP, and socket-based applications.
Draft, review, and maintain software design documentation.
Develop and review software test plans, test procedures, and supporting quality documentation.
Implement designs in alignment with 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 appropriate action to resolve complex issues.
Complete assignments on or ahead of schedule while maintaining quality and thorough documentation.
Collaborate effectively 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 the confidentiality of company, customer, and project information.
Perform other duties as assigned.

Required Qualifications

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.
Experience developing graphical user interfaces with XAML.
Experience using the MVVM design pattern.
Experience working in Linux or Unix environments.
Experience with networking or communications technologies, including:
- Serial communications
- TCP/IP
- UDP
- 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-Model (MVVM)
Linux
Unix
serial communications
TCP
UDP
socket-based applications
TCP/IP
Git

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.

Compensation and Schedule

This is a full-time role. Pay range is USD 127,000 - 139,000 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

Work Location

In person in Austin, TX.

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