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Freelance Senior Software Developer Jobs in Alabama

OASYS, INC.

Senior Software Developer

Huntsville, AL · On-site

$52 - $68.75/hr

Senior Software Developer OASYS, INC ., a Leading-Edge Government contractor in Huntsville Alabama, is seeking a Senior Software Developer to support our ARMY/MDA customer onsite at Redstone Arsenal ...

OASYS

Senior Software Developer

Huntsville, AL · On-site

$53.75 - $71/hr

Senior Software Developer OASYS, INC ., a Leading-Edge Government contractor in Huntsville Alabama, is seeking a Senior Software Developer to support our ARMY/MDA customer onsite at Redstone Arsenal ...

OASYS, INC.

Senior Software Developer

Huntsville, AL · On-site

$50.75 - $67/hr

Senior Software Developer OASYS, INC ., a Leading-Edge Government contractor in Huntsville Alabama, is seeking a Senior Software Developer to support our ARMY/MDA customer onsite at Redstone Arsenal ...

Oasys, Inc.

Senior Software Developer

Huntsville, AL · On-site

$90 - $120/hr

Senior Software Developer OASYS, INC., a Leading-Edge Government contractor in Huntsville Alabama, is seeking a Senior Software Developer to support our ARMY/MDA customer onsite at Redstone Arsenal ...

OASYS, INC.

Senior Software Developer

Huntsville, AL · On-site

$50.75 - $67/hr

Senior Software DeveloperOASYS, INC., a Leading-Edge Government contractor in Huntsville Alabama, is seeking a Senior Software Developer to support our ARMY/MDA customer onsite at Redstone Arsenal ...

Parsons Corporation

Senior Software Developer

Huntsville, AL · On-site

$54 - $71.50/hr

Parsons Corporation is seeking a Senior Software Developer to join their team, where they value innovation and personal growth. The role involves developing APIs for threat system model interactions ...

nou Systems Inc

Senior Software Developer

Huntsville, AL · On-site

$120 - $175/hr

Senior Software Developer 2 days ago Requisition ID: 2056 Salary Range: $120,000.00 To $175,000.00 Annually nou Systems, Inc. (nSI) is now officially a 100% ESOP company! We value teamwork and ...

Nightwing

Senior Software Developer

Huntsville, AL · On-site

$54 - $71.50/hr

They are seeking a Senior Software Developer to develop software for their commercial product team, focusing on systems-level security engineering and protecting national security. Responsibilities ...

ManTech

Senior Software Developer

Montgomery, AL

$54 - $71.25/hr

MANTECH seeks a motivated, career and customer-oriented Senior Software Developer to join our innovative team in Montgomery, AL. Responsibilities include but are not limited to: * Serve as the ...

PeopleTec, Inc.

Senior Software Developer

Huntsville, AL · On-site

$100 - $130/hr

Opportunity PeopleTec is currently seeking a Senior Software Developer to support our Huntsville, AL location. Job Functions: * Develops codes, tests, and debugs new software or enhancements to ...

Parsons

Senior Software Developer

Huntsville, AL · On-site

$120K - $217K/yr

Parsons is looking for an amazingly talented Senior Software Developer to join our team! In this role you will get to develop application programming interfaces (APIs) to facilitate threat system ...

Nou Systems Inc

Senior Software Developer

Huntsville, AL · On-site

$52 - $68.75/hr

We are pleased to announce openings for Senior Software Developers (front end, back end, and full stack) who will join our Technical Solutions Division and JSTC2 Team in Huntsville, Alabama to build ...

WILLCOR, Inc.

Senior Software Developer (SME)

Huntsville, AL · On-site

$53.75 - $71/hr

Senior Software Developer (SME) Location: Huntsville, Alabama Clearance : TS/SCI (or SCI-Eligible) Salary: Negotiable Job Overview: We are seeking a highly skilled Software Developer SME to bring ...

Our Company

Senior Software Developer

Huntsville, AL · On-site

$56.75 - $74.75/hr

Cepeda is seeking a Senior Software Developer for the STARS products branch. You will drive the technical evolution of mission-critical warfighter training and planning tools. STARS FBM Planner is a ...

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Freelance Senior Software Developer information

What does a freelance senior software developer do?

A Freelance Senior Software Developer designs, develops, and maintains complex software systems for clients or companies on a contract basis. They often work independently, managing multiple projects, collaborating with stakeholders, and ensuring the delivery of high-quality code. Their role may include mentoring junior developers, making architectural decisions, and troubleshooting technical issues. Freelancers have the flexibility to choose their clients and projects, and they are responsible for managing their own workload, deadlines, and business operations.

What are the key skills and qualifications needed to thrive as a freelance senior software developer?

To thrive as a Freelance Senior Software Developer, you need advanced programming expertise, a robust portfolio, and significant experience with full software development lifecycles. Strong command of frameworks, version control (like Git), cloud platforms, and potentially certifications such as AWS Certified Developer or Microsoft Certified: Azure Developer are highly valuable. Exceptional communication, time management, and problem-solving abilities help you effectively collaborate with clients and manage multiple projects independently. These skills ensure you deliver high-quality, timely solutions while building a strong professional reputation in a competitive freelance market.

How do freelance senior software developers typically manage client expectations and project timelines?

Freelance Senior Software Developers often juggle multiple clients and projects, which requires clear communication and proactive expectation management. They usually begin by setting detailed project scopes, timelines, and deliverables with clients, then provide regular updates and adjust schedules as needed to accommodate changes or unforeseen challenges. Strong time management skills and transparent reporting help ensure that projects stay on track and that clients remain informed and satisfied throughout the development process.

What is the difference between Freelance Senior Software Developer vs Freelance Software Engineer?

AspectFreelance Senior Software DeveloperFreelance Software Engineer
CredentialsTypically requires extensive experience, advanced coding skills, and sometimes certifications like Microsoft or AWSRequires solid coding skills and experience, often with relevant certifications but generally less senior-level expertise
Work EnvironmentWorks independently or with clients directly, often on complex projects requiring leadershipWorks independently or with teams, focusing on software development tasks across various projects
Industry UsageCommonly used in consulting, freelance platforms, and project-based work requiring senior expertiseWidely used in freelance and contract roles across tech industries for development tasks

The main difference lies in experience level and project complexity. Freelance Senior Software Developers typically handle more complex projects and provide technical leadership, while Freelance Software Engineers focus on coding and development tasks across a range of project types.

What are the most commonly searched types of Senior Software Developer jobs in Alabama?

The most popular types of Senior Software Developer jobs in Alabama are:

Freelance Senior Software Developer jobs near you

Senior Software Developer

OASYS, INC.

Huntsville, AL • On-site

$52 - $68.75/hr

Other

Dental, Vision, Retirement, PTO

Re-posted 23 days ago

Job description

Senior Software Developer
OASYS, INC., a Leading-Edge Government contractor in Huntsville Alabama, is seeking a Senior Software Developer to support our ARMY/MDA customer onsite at Redstone Arsenal, Huntsville, AL.
Job Responsibilities include: You will help drive the technical evolution of mission-critical warfighter training and planning tools. This Java based tool provides warfighters and sensor managers with the ability to rapidly plan, optimize, and deploy layered sensor search plans in operational timelines. Your knowledge and skills will directly enhance the survivability and battlespace awareness of fielded assets, integrating high-fidelity intelligence data, complex physics-based models, and tactical hardware health into a streamlined operational tool.
  • Support the software design for the core man-in-the-loop graphical user interface, the Rapid Response Tool (RRT), and the Socrates parsing utility.
  • Design and maintain seamless interoperability with external intelligence and modeling frameworks, specifically the Threat Generation External (TGx) and the Threat Modeling Center (TMC) Threat Modeling & Simulation Suite (TMSS).
  • Lead the implementation of heuristic algorithms for search plan optimization, deterministic statistical roll-ups for Probability of Acquisition (Pacq), and 4/3 Effective Earth Radius models for terrain masking (using DTED).
  • Ensure robust data ingestion and export pipelines for tactical log data from radars and tactical binary search plan files (SPT, OSP, Custom XML).
  • Support the software team in adopting DoD DevSecOps best practices, ensuring all code meets rigorous cybersecurity standards for deployment in operational military environments.
  • Contribute to a team of software engineers and radar systems analysts in translating complex physics and engineering models into scalable, performant software code.

Minimum Requirements:
  • Bachelor's or Master's Degree in Computer Science, Software Engineering, Systems Engineering, or a highly related technical field.
  • 10+ years of full-lifecycle software engineering experience
  • Strong programming expertise in modern languages utilized for defense modeling and UI (C++, Java, Python).
  • Experience with XML data structures and parsing utilities.
  • Familiarity with geospatial data processing and coordinate geometry (e.g., Vincenty Direct formulas, DTED/TDF integration).
  • Experience developing software within the DoD Modeling and Simulation (M&S) enterprise.

Preferred Requirements:
  • Direct experience with phased-array radar systems
  • Familiarity with threat models
  • Knowledge of radar detection theory, Signal-to-Noise Ratio (SNR) tracking logic, and Scattering Center Radar Cross Section (RCS) models.
  • Previous experience supporting rapid prototyping and Warfighter Improvement Process (WIP) requirements.

Required Education: Candidates should possess a bachelor's degree, preferably in Engineering, Cyber, Computer Information Systems, Computer Science, Math, Physics, or other STEM discipline, however, years of experience may be substituted for a degree.
Eligibility: Candidates must have the ability to obtain and maintain a DoD Secret Clearance. An Active Secret Clearance is highly desired.
About OASYS, INC.: Located in Huntsville, Alabama, OASYS, INC. is a technology services and products company dedicated to delivering the right solutions to our government and commercial clients. Our innovative solutions combined with today's technology and our subject matter expertise help to provide full lifecycle support for our client's needs.
Benefits: OASYS, INC. offers a robust benefit plan to include: BC/BS of Alabama Heath & Dental, VSP Vision, Employee Stock Ownership Plan (ESOP), 401-K with Matching, Flexible Spending Account, Tuition Reimbursement, Holidays, Vacation, Short-term/Long-term Disability.
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