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Remote Mainframe Developer Jobs in Philadelphia, PA

Comcast

Sr. Software Engineer - AI Agentic

Philadelphia, PA · On-site +1

$123K - $163K/yr

... office for the remote option.) Job Summary The AI Agentic Team designs, builds, and runs ... Developer Kit (ADK) We believe that benefits should connect you to the support you need when it ...

Vertexinc

Software Engineer III

King Of Prussia, PA · On-site +1

Software Engineer III LOCATION: 2301 Renaissance Blvd, King of Prussia, PA 19406 DUTIES: Develop, modify, and enhance Vertex's tax compliance products' source code - 10%. Execute and analyze software ...

Cisco

Senior Software Engineer, Backend

Philadelphia, PA · On-site +1

$165K - $241K/yr

Focus on increasing reliability, performance, scalability, testability, maintainability, observability, and developer experience. * Work with various groups within Cisco to understand their and our ...

Cisco

Senior Software Engineer, Backend

Malvern, PA · On-site +1

$165K - $241K/yr

Focus on increasing reliability, performance, scalability, testability, maintainability, observability, and developer experience. * Work with various groups within Cisco to understand their and our ...

Cisco

Senior Software Engineer, Backend

Trenton, NJ · On-site +1

$165K - $241K/yr

Focus on increasing reliability, performance, scalability, testability, maintainability, observability, and developer experience. * Work with various groups within Cisco to understand their and our ...

Novacore

Software Engineer

Conshohocken, PA · On-site +1

Software Engineer The Software Engineeris responsible fordesigning, developing, testing, andmaintainingsoftware solutions that supportNovacore's Healthcare segment, Carbon Stop Loss Solutions. This ...

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All JobsMainframe Developer JobsRemote Mainframe Developer JobsRemote Mainframe Developer Jobs in Philadelphia, PA

Remote Mainframe Developer information

See Philadelphia, PA salary details

$10

$53

$73

How much do remote mainframe developer jobs pay per hour?

As of Jul 26, 2026, the average hourly pay for remote mainframe developer in Philadelphia, PA is $53.86, according to ZipRecruiter salary data. Most workers in this role earn between $47.55 and $61.11 per hour, depending on experience, location, and employer.

Is IBM still making mainframes?

IBM continues to manufacture mainframes, such as the IBM Z series, which are widely used in enterprise environments for their reliability, security, and scalability. Mainframes remain a key platform for large-scale data processing and transaction workloads, and many organizations rely on mainframe developers to maintain and upgrade these systems.

What Does a Remote Mainframe Developer Do?

As a remote mainframe developer, you work from home to design, code, test, and configure software and applications used on a mainframe system. Mainframes are large computers with particularly high processing power and are often used for critical tasks like bulk data processing or enterprise resource planning. In this role, you may help ensure all new software is fully backward-compatible, monitor system performance, isolate errors, and work collaboratively with other developers as needed. Most mainframe developers work for larger companies. As a remote employee, you use virtual office software, phone, chat, or email to remain connected to other employees.

What are the key skills and qualifications needed to thrive as a Remote Mainframe Developer, and why are they important?

To thrive as a Remote Mainframe Developer, you need strong programming skills in languages like COBOL, JCL, and experience with mainframe operating systems, often supported by a degree in computer science or related field. Familiarity with tools such as IBM z/OS, DB2, CICS, and version control systems is typically required, along with relevant certifications. Excellent problem-solving abilities, independent work ethic, and effective virtual communication are standout soft skills for this remote role. These skills ensure smooth maintenance, modernization, and support of critical legacy systems in distributed teams.

Is mainframe developer a good career?

A mainframe developer is a skilled IT professional who maintains and develops applications on mainframe systems, which are used by large organizations for critical data processing. The role offers stable employment, competitive salaries, and opportunities to work with legacy technologies like COBOL and JCL. However, it requires specialized skills and ongoing learning to stay current with evolving systems and tools.

Can mainframe be replaced by AI?

Mainframe developers work with large-scale, legacy systems that require specialized knowledge of mainframe architectures, programming languages, and security protocols. While AI can automate certain tasks like code analysis and testing, it is unlikely to fully replace the need for skilled mainframe developers who maintain and optimize critical enterprise systems. AI tools may assist in development, but human expertise remains essential for complex mainframe environments.

How does a Remote Mainframe Developer typically collaborate with on-site teams and manage communication challenges?

As a Remote Mainframe Developer, you'll often work closely with on-site IT teams, business analysts, and project managers through virtual meetings, chat platforms, and shared documentation tools. Effective communication is key, so regular check-ins and proactive status updates help ensure alignment on project goals and troubleshooting efforts. Many companies use agile methodologies, which means you'll likely participate in daily stand-ups and sprint planning sessions remotely. While time zone differences can be a challenge, flexible scheduling and clear communication protocols are common strategies to keep everyone connected and productive.

What is the salary of a mainframe developer?

The salary of a mainframe developer typically ranges from $70,000 to $120,000 annually, depending on experience, location, and certifications. Senior developers with specialized skills in COBOL, JCL, and mainframe tools may earn higher salaries, especially in industries like finance and government that rely heavily on mainframe systems.

What is a Remote Mainframe Developer?

A Remote Mainframe Developer is a software professional who specializes in designing, developing, maintaining, and troubleshooting applications that run on mainframe computers, while working from a remote location. Mainframes are powerful computers often used by large organizations for critical applications, such as transaction processing and bulk data handling. Remote Mainframe Developers use programming languages like COBOL, JCL, and Assembler, and often connect to mainframe systems via secure networks. Their work ensures that legacy systems remain efficient, secure, and up-to-date. This role typically requires strong technical skills, experience with mainframe environments, and effective communication for collaborating with on-site teams.
More about Remote Mainframe Developer jobs
What are popular job titles related to Remote Mainframe Developer jobs in Philadelphia, PA? For Remote Mainframe Developer jobs in Philadelphia, PA, the most frequently searched job titles are:
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What cities near Philadelphia, PA are hiring for Remote Mainframe Developer jobs? Cities near Philadelphia, PA with the most Remote Mainframe Developer job openings:
Remote Mainframe Developer jobs near you
Infographic showing various Remote Mainframe Developer job openings in Philadelphia, PA as of July 2026, with employment types broken down into 46% Full Time, and 54% Contract. Highlights an 100% Remote job distribution, with an average salary of $112,035 per year, or $53.9 per hour.
Sr. Software Engineer - AI Agentic

Sr. Software Engineer - AI Agentic

Comcast

Philadelphia, PA • On-site, Remote

$123K - $163K/yr

Full-time

Posted 3 days ago

Job description

Make your mark at Comcast -- a Fortune 30 global media and technology company. From the connectivity and platforms we provide, to the content and experiences we create, we reach hundreds of millions of customers, viewers, and guests worldwide. Become part of our award-winning technology team that turns big ideas into cutting-edge products, platforms, and solutions that our customers love. We create space to innovate, and we recognize, reward, and invest in your ideas, while ensuring you can proudly bring your authentic self to the workplace. Join us. You'll do the best work of your career right here at Comcast. (In most cases, Comcast prefers to have employees on-site collaborating unless the team has been designated as virtual due to the nature of their work. If a position is listed with both office locations and virtual offerings, Comcast may be willing to consider candidates who live greater than 100 miles from the office for the remote option.)

Job Summary

The AI Agentic Team designs, builds, and runs intelligent agents end to end. We own agent logic, workflows, integrations, production deployment, and ongoing performance. By combining build and operations, we deliver agentic systems that are reliable, secure, and scalable in real-world use.

Job Description

About the Role

We are evolving our chat experience from human-assisted to fully agentic. As an AI Agentic Software Engineer, you will help rewrite an existing production application into an end-to-end agentic platform, with a strong passion for customer experience and a commitment to building intuitive, high-quality interactions.

This role is for engineers who treat AI as a core part of the system-embedded across the full SDLC to deliver production-grade outcomes-while continuously advocating for the end user. You'll work in a Google-centric stack using tools like ADK and Gemini Enterprise to build complex, agent-driven experiences that are not only intelligent, but seamless, trustworthy, and delightful for customers.

What You'll Do:

Agentic & AI-Augmented Engineering

  • Design, build, and operate agentic systems that replace or augment human workflows

  • Apply AI across the SDLC, including:

    • Requirements and spec-driven development

    • System and agentic workflow design

    • AI-augmented coding and refactoring

    • AI-driven testing and defect remediation

  • Treat AI as a collaborating system, not a one-off tool

  • Evaluate and iterate on AI outputs (e.g., LLM-as-a-Judge)

Platform & Production Delivery

  • Build production-ready agent-based solutions with reliability, scalability, and observability

  • Implement agent-to-agent, agent-to-UI, and human-AI orchestration

  • Contribute to AgentOps, MLOps, and AI governance

  • Ensure ethical, compliant, and responsible AI use.

Collaboration & Influence

  • Clearly communicate how AI is used in your engineering workflows

  • Share patterns and best practices with the team

  • Partner with product, UX, and platform teams to deliver cohesive experiences.

What You'll Need:

  • 7+ years building agentic AI systems in production, or equivalent experience designing, shipping, and operating scalable, production-grade software (APIs, platforms, workflow engines, or customer-facing applications)

  • Hands-on experience with Agent Development Kit (ADK) and Python

  • Experience with Gemini Enterprise, or similar conversational AI platforms

  • Spec-driven development with AI integrated into the development lifecycle

  • Strong prompt engineering skills, including evaluation, iteration, and logging

  • Experience leveraging AI-assisted coding across multiple features or defects in parallel

  • Familiarity with AgentOps and production monitoring for agent-based systems

  • Experience with LLM-as-a-Judge or comparable evaluation techniques

  • Proven ability to design agent-to-agent, agent-to-UI, and human-AI collaboration patterns

  • Soft Skills: Curiosity to explore emerging AI capabilities, critical thinking to assess AI outputs, and adaptability in fast-moving, ambiguous environments.


Disclaimer: This information has been designed to indicate the general nature and level of work performed by employees in this role. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities and qualifications.

Skills

Adaptability, AI Adoption, AI Agents, AI Platforms, Curious Mindset, Customer Experience (CX), Google Agent Developer Kit (ADK)

We believe that benefits should connect you to the support you need when it matters most, and should help you care for those who matter most. That's why we provide an array of options, expert guidance and always-on tools that are personalized to meet the needs of your reality-to help support you physically, financially and emotionally through the big milestones and in your everyday life.


Please visit the benefits summary on our careers site for more details.

Education

Bachelor's DegreeWhile possessing the stated degree is preferred, Comcast also may consider applicants who hold some combination of coursework and experience, or who have extensive related professional experience.

Certifications (if applicable)

Relevant Work Experience

7-10 YearsComcast is an equal opportunity workplace. We will consider all qualified applicants for employment without regard to race, color, religion, age, sex, sexual orientation, gender identity, national origin, disability, veteran status, genetic information, or any other basis protected by applicable law.

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