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Mid Level Developer Jobs in Philadelphia, PA (NOW HIRING)

Java Developer(mid-level)

Wilmington, DE · On-site

$49.50 - $64/hr

Sr. Java Developer Wilmington, DE/NYC/Atlanta, GA • Strong Java programming skills • 5-9 years practical software development experience • Robust object-oriented design pattern knowledge and ...

Mid-level Manufacturing Engineer

Ridley Park, PA · On-site

$69K - $89K/yr

Mid-level Manufacturing Engineer Company: The Boeing Company Boeing Defense, Space & Security (BDS) is looking for Experienced Manufacturing Engineers to join our team in BDS Manufacturing ...

Mid-level Manufacturing Engineer

Ridley Park, PA · On-site

$69K - $89K/yr

Mid-level Manufacturing Engineer Company: The Boeing Company Boeing Defense, Space & Security (BDS) is looking for Experienced Manufacturing Engineers to join our team in BDS Manufacturing ...

Mid-level Manufacturing Engineer

Ridley Park, PA · On-site

$69K - $89K/yr

Mid-level Manufacturing Engineer Company: The Boeing Company Boeing Defense, Space & Security (BDS) is looking for Experienced Manufacturing Engineers to join our team in BDS Manufacturing ...

Mid Level QA Required Skills: * Bamboo, and Github experience required * Cucumber-TestNG framework ... Testing Job Requirements: QA Engineers Overall qualifications: * Excellent analytical skills with ...

Mid Level QA Required Skills: * Bamboo, and Github experience required * Cucumber-TestNG framework ... Testing Job Requirements: QA Engineers Overall qualifications: * Excellent analytical skills with ...

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Showing results 1-20

Mid Level Developer information

See Philadelphia, PA salary details

$11.1K

$87.5K

$114K

How much do mid level developer jobs pay per year?

As of Sep 14, 2026, the average yearly pay for mid level developer in Philadelphia, PA is $87,454.00, according to ZipRecruiter salary data. Most workers in this role earn between $60,500.00 and $108,500.00 per year, depending on experience, location, and employer.

What is a mid level developer?

Mid Level Developers are software professionals who have gained several years of experience beyond entry-level positions and are proficient in coding, debugging, and collaborating on projects. They possess a strong understanding of programming languages, frameworks, and software development processes. Mid Level Developers often take on more responsibility than junior developers, such as mentoring newer team members, contributing to architectural decisions, and ensuring code quality. They are expected to work independently on tasks, communicate effectively with team members, and deliver reliable solutions to complex problems.

What are the key skills and qualifications needed to thrive as a mid level developer?

To thrive as a Mid Level Developer, you need solid programming skills in languages such as Java, Python, or JavaScript, along with a relevant degree or equivalent experience. Familiarity with version control systems like Git, integrated development environments (IDEs), and frameworks such as React or Spring Boot is typically required. Effective problem-solving, teamwork, and strong communication skills help you collaborate and adapt to project needs. These abilities ensure you can deliver reliable code, work smoothly with colleagues, and contribute to successful software projects.

What opportunities for professional growth can a mid level developer typically expect within a software development team?

As a Mid Level Developer, you can expect to take on more complex projects, mentor junior team members, and gradually assume greater ownership of features or modules. Many organizations support growth through peer code reviews, access to learning resources, and the chance to participate in architectural discussions. Advancement paths often include moving toward senior developer roles, technical leads, or specializing in areas like DevOps or security, depending on your interests and the company's needs.

What is the difference between Mid Level Developer vs Junior Developer?

AspectMid Level DeveloperJunior Developer
Experience2-4 years0-2 years
SkillsProficient in multiple programming languages, problem-solving, and project contributionBasic coding skills, learning foundational concepts
ResponsibilitiesDeveloping features, debugging, collaborating on projectsAssisting in tasks, learning codebases, under supervision
Work EnvironmentIndependent work, team collaboration, project ownership

The main difference between a Mid Level Developer and a Junior Developer lies in experience, skill proficiency, and responsibilities. Mid Level Developers have more experience, can handle complex tasks independently, and contribute significantly to projects, whereas Junior Developers are still learning foundational skills and typically work under supervision.

What are the most commonly searched types of Developer jobs in Philadelphia, PA?

The most popular types of Developer jobs in Philadelphia, PA are:

What job categories do people searching Mid Level Developer jobs in Philadelphia, PA look for?

The top searched job categories for Mid Level Developer jobs in Philadelphia, PA are:

What cities near Philadelphia, PA are hiring for Mid Level Developer jobs?

Cities near Philadelphia, PA with the most Mid Level Developer job openings:

Infographic showing various Mid Level Developer job openings in Philadelphia, PA as of August 2026, with employment types broken down into 1% As Needed, 78% Full Time, 15% Part Time, and 6% Contract. Highlights an 92% Physical, 3% Hybrid, and 5% Remote job distribution, with an average salary of $87,454 per year, or $42 per hour.

Dev Sec Engineering - Level 2 (Top Secret)

King Of Prussia, PA • On-site

Lockheed Martin Corporation
Manufacturing • 10K+ employees

$91K - $169K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 19 days ago


Lockheed Martin rating

8.2

Company rating: 8.2 out of 10

Based on 400 frontline employees who took The Breakroom Quiz


Job description

Standard Job Description
Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future.
At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We're creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We're erasing boundaries and forming partnerships across industries and around the world. We're advancing spacecraft and the workforce to fuel the next generation. And we're re-imagining how space can connect us, ensuring security and prosperity.
Join us in shaping a new era in space and find a career that's built for you.
This position is contingent upon the program award expected in the winter of 2026.
#LI-CS1
Performs tech planning, design, devel, integ, v&v for total syst life cycle. Analyses performed at all levels of syst product incl. concept, design, fabrication, test, instl, operation, maintenance & disposal, incorp design methods & stds for Cyber Security, SW & HW infrastructure. Designs, devels, docs, tests & debugs SW that contains logical & math solutions to business/mission problems/questions in computer language. Ensures the logical & syst conversion of customer/product reqs into total syst solutions that ack tech, sched, cost constraints & align to SW & HW deployment pipelines & factories. Performs func & timeline analysis, detail trade & reqs allocation & interface defs studies to translate customer reqs into HW & SW feature defs & acceptance criteria. Applies stds, processes, procedures & tools throughout the devel life cycle. Applies HW & SW knowledge, cyber security stds in business/mission apps, & feedback from users to develop SW. Corrects program errors, prepares operating instructions, compiles doc of program devel & analyzes syst capabilities to resolve program problems, output/input data acq, programming tech & controls. Ensures SW stds are met. Validates incorp of features & use cases into implemented designs
Basic Qualifications
• Security+ certification
• Must have an active Top Secret with ability to obtain and maintain SCI security clearance. (Must be a US citizen)
The successful candidate must have demonstrated experience with one or more of the following automation technologies:
• Gitlab/Git
• Pipeline Automation
• Automation and Scripting
• Kubernetes
Desired Skills
The successful candidate may have additional demonstrated experience with the following automation technologies:
• ArgoCD
• Ansible
• Helm
• Platform as a Service experience
#LMSpaceDevOps
#SpaceSecurity
#SpaceNSS
Pay Information
Full-Time Salary Range: $91200.00 - $169400.00
At Lockheed Martin, we know mission success starts with taking care of our people. Our Total Rewards program is designed to attract top talent, support your well-being, and help you grow-both professionally and personally.
The salary range for this position is as listed on the requisition. Please note that the salary information listed is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market(work location) and business considerations when extending an offer.
Benefits offered: Medical, Dental, Vision, Flexible work arrangements and schedules (e.g., 4x10), 401(k) match, Paid time off, Holidays, Parental Leave, EAP, Flexible Spending Accounts, Education Assistance, Life Insurance, Short-Term Disability, and Long-Term Disability.
  • Annual short-term and/or long-term incentive compensation programs may be offered depending on the position. Payments under these annual programs are not guaranteed and can vary from year to year and are tied to a range of performance metrics.
  • For (Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.

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About Lockheed Martin

Sourced by ZipRecruiter

As a global security and aerospace company, the majority of Lockheed Martin's business is with the U.S. Department of Defense and U.S. federal government agencies.The remaining portion of Lockheed Martin's business is comprised of international government and commercial sales of products, services and platforms.

Industry

Manufacturing

Company size

10,000+ Employees

Headquarters location

Bethesda, MD, US

Year founded

1912