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Freelance Senior Software Engineer Jobs in Ohio (NOW HIRING)

Senior Software Engineer

Dayton, OH ยท On-site

$119K - $157K/yr

Position Summary Credence is seeking an experienced Senior Software Engineer to design, develop, integrate, and modernize enterprise software solutions. This role focuses on application development ...

Sr Software Engineer

Columbus, OH ยท On-site

$114K - $150K/yr

Title: Sr. Software Engineer Job ID: 5393 Work Location: 1400 City View Drive, Columbus, OH 43215 United States They must live within 2 hours of the Columbus, Ohio area as this is a hybrid schedule.

Senior Software Engineer

Dayton, OH ยท On-site

$150 - $200/hr

Position Summary Credence is seeking an experienced Senior Software Engineer to design, develop, integrate, and modernize enterprise software solutions. This role focuses on application development ...

Sr. Software Engineer

Cincinnati, OH ยท On-site

$117K - $155K/yr

Sr. Software Engineer At Guerbet, we build lasting relationships so that to enable people to live better . This is Our Purpose. We are a global leader in medical imaging, offering an extensive ...

Senior Software Engineer

Dayton, OH ยท On-site

$119K - $157K/yr

Tangram Flex is seeking a Senior Software Engineer with a minimum of 8 years of experience with technical leadership in open mission system integration, applying MOSA methodologies in modular ...

Senior Software Engineer

Dayton, OH ยท On-site

$119K - $157K/yr

Tangram Flex is seeking a Senior Software Engineer with a minimum of 8 years of experience with technical leadership in open mission system integration , applying MOSA methodologies in modular ...

Senior Software Engineer

Dayton, OH ยท On-site

$119K - $157K/yr

Tangram Flex is seeking a Senior Software Engineer with a minimum of 8 years of experience with technical leadership in open mission system integration, applying MOSA methodologies in modular ...

Senior Software Engineer

Wyoming, OH ยท On-site

$125 - $150/hr

Senior Software Engineer** develops, creates, and modifies general computer applications software or specialized utility programs. They analyze user needs and develop software solutions. They will ...

Senior Software Engineer

Cincinnati, OH ยท On-site

$55 - $60/hr

Job Summary We are seeking a highly experienced, AI-forward Senior Software Engineer to modernize enterprise applications and help transform software engineering practices across the organization.

Senior Software Engineer

Dayton, OH

$119K - $157K/yr

NextGen Federal Systems (NextGen) is currently seeking to fill multiple Senior Software Engineer positions with staff who have experience supporting Department of War (DoW) and Intelligence Community ...

Senior Software Engineer

Dayton, OH ยท On-site

$119K - $157K/yr

NextGen Federal Systems (NextGen) is currently seeking to fill multiple Senior Software Engineer positions with staff who have experience supporting Department of War (DoW) and Intelligence Community ...

Senior Software Engineer

Dayton, OH ยท On-site

$119K - $157K/yr

NextGen Federal Systems (NextGen) is currently seeking to fill multiple Senior Software Engineer positions with staff who have experience supporting Department of War (DoW) and Intelligence Community ...

Senior Software Engineer

Dayton, OH ยท On-site

$119K - $157K/yr

They are seeking a Senior Software Engineer to support the development and integration of mission analysis and modeling applications, focusing on multi-domain analysis and leveraging physics-based ...

Software Engineer, Senior

Dayton, OH ยท On-site

$86K - $198K/yr

Software Engineer, Senior The Opportunity: Seeking a Senior Software Engineer to lead andsupport Agile design, development, integration and deployment of a mission management softwarefor ...

Showing results 21-40

Freelance Senior Software Engineer information

What is a freelance senior software engineer?

Freelance Senior Software Engineers are highly experienced software professionals who work independently rather than as full-time employees of a single company. They take on contract-based projects for various clients, often leading development teams, architecting systems, and solving complex technical problems. Their responsibilities typically include coding, reviewing code, mentoring junior engineers, and ensuring that software solutions meet client requirements. Freelance senior engineers offer flexibility and specialized expertise, making them a valuable asset for businesses needing advanced software solutions without long-term commitments.

What are some common challenges faced by freelance senior software engineers when managing multiple client projects simultaneously?

Freelance Senior Software Engineers often juggle multiple projects for different clients, which can present challenges such as balancing competing deadlines, adapting to varying coding standards, and maintaining clear communication across diverse teams. Time management and setting realistic expectations are crucial to ensure high-quality deliverables. Additionally, staying up to date with new technologies and industry best practices helps maintain a competitive edge and satisfy client requirements.

What are the key skills and qualifications needed to thrive as a freelance senior software engineer, and why are they important?

To thrive as a Freelance Senior Software Engineer, you need advanced programming expertise, strong problem-solving skills, and a proven track record in software development, often backed by a relevant degree and years of experience. Familiarity with version control systems like Git, cloud platforms such as AWS or Azure, and mastery of frameworks and languages (e.g., JavaScript, Python, Java) are crucial, along with certifications like AWS Certified Solutions Architect or Microsoft Certified: Azure Developer Associate. Outstanding communication, time management, and self-motivation are vital soft skills for independently managing projects and collaborating with diverse clients. These competencies ensure you can deliver high-quality, scalable solutions while building strong client relationships and managing multiple projects efficiently.

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

AspectFreelance Senior Software EngineerFreelance Software Developer
Experience LevelTypically 5+ years, with leadership and architecture skillsVaries from entry-level to mid-level, focused on coding and implementation
ResponsibilitiesDesigning systems, leading projects, mentoringWriting code, developing features, fixing bugs
CredentialsStrong portfolio, possibly certifications like AWS, ScrumPortfolio, coding skills, possibly certifications
Work EnvironmentRemote or client-site, often in tech companies or startupsRemote or client-site, in various industries

Freelance Senior Software Engineers typically have more experience, leadership responsibilities, and focus on system design, while Freelance Software Developers concentrate on coding and feature development. Both roles are in high demand in the freelance market, but the senior role often commands higher rates due to expertise and project scope.

What are the most commonly searched types of Senior Software Engineer jobs in Ohio?

The most popular types of Senior Software Engineer jobs in Ohio are:

What cities in Ohio are hiring for Freelance Senior Software Engineer jobs?

Cities in Ohio with the most Freelance Senior Software Engineer job openings:

Senior Software Engineer

Credence

Dayton, OH โ€ข On-site

$119K - $157K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 19 days ago


Job description

Overview

Join a team where innovation meets mission. Our AI, cloud, cyber, and modernization solutions save agencies thousands of hours, safeguard national security, and strengthen health and humanitarian missions worldwide. With 1,700+ team members, 1,500+ AI/data experts, and 100+ prime contracts, we deliver at scale and with purpose.

We've been recognized as a Top Workplace by the Washington Post for six straight years and named to the Inc. 5000 Fastest Growing Private Companies 13 of the past 14 years. Credence is a welcoming home for those looking to grow and contribute to positive change. We encourage all employees to expand beyond their boundaries, dive into important world-changing Federal challenges.

Position Summary

Credence is seeking an experienced Senior Software Engineer to design, develop, integrate, and modernize enterprise software solutions. This role focuses on application development, software architecture, cloud-native technologies, AI-enabled automation, systems integration, and advanced analytical capabilities that improve mission readiness, logistics, sustainment, and supply chain operations.

The successful candidate will build scalable software applications, APIs, enterprise services, automation tools, and AI-enabled capabilities that transform complex operational and logistics information into mission-focused software solutions. This position offers the opportunity to work across software engineering, cloud technologies, DevSecOps, automation, and enterprise analytics while supporting one of the Department of Defense's most critical aviation programs.

The ideal candidate is a senior-level software engineer with strong programming experience, modern application development expertise, and a passion for building innovative solutions that drive operational effectiveness and mission success.

Responsibilities include, but are not limited to the duties listed below

Software Engineering & Architecture

  • Design, develop, test, and deploy scalable, secure enterprise software, APIs, and microservices.
  • Design secure, cloud-native software architectures, and contribute to architecture decisions across the stack.
  • Support deployment through containers and CI/CD, and modernize legacy systems through automation and cloud-enabled technologies.
  • Apply engineering best practices - source control, automated testing, code review, documentation.
  • Ensure compliance with secure software development standards and Government cybersecurity requirements
  • Support monitoring, troubleshooting, and operational sustainment of production systems.

AI & Intelligent Automation

  • Build and integrate AI-enabled capabilities - including generative AI, LLMs, RAG, and agentic workflows - into production systems, with secure integration into approved AI platforms.
  • Apply AI-assisted development tools to improve engineering velocity and code quality.
  • Evaluate emerging AI and automation technologies and drive their practical adoption.

Impact & Collaboration

  • Translate complex operational requirements into production-ready software, working directly with analysts and stakeholders.
  • Build forecasting, modeling, and decision-support tools that turn data into operational insight.
  • Provide technical leadership and mentorship, and help shape engineering standards across the team.

Requirements

  • U.S. Citizenship with an active Secret Security Clearance.
  • Master's or Doctorate degree in Computer Science, Software Engineering, Information Technology, Engineering, Mathematics, or a related technical field and 10 years of relevant professional experience, including at least 5 years supporting DoD; OR
  • Bachelor's degree in a related technical field and 12 years of relevant professional experience, including at least 5 years supporting DoD; OR
  • 15 years of directly related professional experience with, including at least 8 years supporting DoD.
  • Significant professional experience in software engineering, application development, systems engineering, automation, or related technical disciplines.
  • Demonstrated expertise in one or more modern programming languages such as Python, Java, C#, or JavaScript/TypeScript, with recent hands-on experience developing production software.
  • Experience designing, developing, testing, deploying, and maintaining enterprise software applications and services.
  • Experience developing APIs, distributed systems, microservices, or service-oriented architectures.
  • Experience with software architecture, object-oriented design, and software development lifecycle best practices.
  • Experience working in Agile software development environments, including Scrum or Kanban.
  • Experience developing and deploying applications in cloud environments such as AWS, Azure, or GCP, including containerized or cloud-native applications.
  • Experience integrating enterprise systems and developing mission-focused software solutions.
  • Strong problem-solving, communication, technical writing, and collaboration skills.

Preferred Qualifications

  • Experience supporting F-35, Air Force, Navy, Joint Program Office (JPO), or other major DoD acquisition programs.
  • Experience with generative AI, large language models (LLMs), retrieval-augmented generation (RAG), prompt engineering, or AI-enabled application development.
  • Familiarity with agentic AI frameworks, orchestration platforms, and intelligent automation solutions.
  • Experience developing mission applications that incorporate analytics, forecasting, optimization, or decision-support capabilities.
  • Experience supporting Department of Defense environments and Government mission requirements.
  • Active Top Secret clearance.

ย Why This Role Matters

  • Mission-Critical Impact - Build software solutions that directly improve mission readiness, logistics, sustainment, and operational effectiveness.
  • Modern Engineering Environment - Work with cloud technologies, DevSecOps, AI-enabled capabilities, automation frameworks, and modern software architectures.
  • Innovate with Purpose - Develop mission-focused applications that help transform data into actionable insights and operational outcomes.
  • Collaborative Technical Culture - Partner with engineers, AI specialists, mission experts, and Government stakeholders to solve complex challenges.
  • Professional Growth - Expand your expertise across software engineering, cloud, AI, automation, and defense mission support while contributing to one of the world's most advanced aviation programs.

This position requires regular onsite work in Dayton, OH and is not eligible for remote work.

Salary Range:ย $140,000 - $170,000 annually. Actual compensation will be determined based on the selected candidate's experience, education, certifications, skills, and overall qualifications.

Benefits

  • Health Care Plan (Medical, Dental & Vision)
  • Retirement Plan (401k, IRA)
  • Life Insurance (Basic, Voluntary & AD&D)
  • Paid Time Off (Vacation, Sick & Public Holidays)
  • Family Leave (Maternity, Paternity)
  • Short Term & Long Term Disability
  • Training & Development
  • Wellness Resources