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Junior Full Stack Software Developer Jobs in Havertown, PA

Mondo

Sr. Software Engineer (Full Stack)

Horsham, PA · Remote

$60 - $65/hr

Apply now: Sr. Software Engineer (Full Stack) , Remote (EST Hours Required). Start date is ASAP for this Contract-to-Hire position. Job Title: Sr. Software Engineer (Full Stack) Location-Type: Remote ...

Ports North

Full Stack- React/ Java Developer

Wilmington, DE · On-site

$75.77 - $89.54/hr

Working proficiency in a portion of software engineering disciplines and demonstrates understanding ... Ability to design solutions, review code, and unblock junior developers Education & Work Experience ...

Next Step Systems

Full Stack Developer

Philadelphia, PA · On-site

Full Stack Developer, Philadelphia, PA We are seeking a Full Stack Developer to work on a team building custom software for great customers using modern technologies and Agile methods. The Full Stack ...

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Junior Full Stack Software Developer information

See Havertown, PA salary details

$23.4K

$86.9K

$134.3K

How much do junior full stack software developer jobs pay per year?

As of Aug 29, 2026, the average yearly pay for junior full stack software developer in Havertown, PA is $86,918.00, according to ZipRecruiter salary data. Most workers in this role earn between $65,400.00 and $85,000.00 per year, depending on experience, location, and employer.

What does a junior full stack software developer do?

A Junior Full Stack Software Developer is responsible for assisting in the design, development, and maintenance of both front-end and back-end components of web applications. They work with various programming languages, frameworks, and databases to build and support software solutions. Typically, they collaborate with senior developers and other team members to learn best practices, resolve bugs, and implement new features. This role is ideal for those who have foundational programming knowledge and are looking to gain hands-on experience across the entire software development stack.

What are the key skills and qualifications needed to thrive as a junior full stack software developer?

To excel as a Junior Full Stack Software Developer, you need a solid understanding of programming languages (such as JavaScript, Python, or Java), front-end and back-end frameworks, and a relevant degree or coding bootcamp experience. Familiarity with tools like Git, databases (e.g., SQL, MongoDB), and cloud platforms, as well as knowledge of agile methodologies, is typically expected. Problem-solving ability, eagerness to learn, and effective teamwork are standout soft skills in this role. These skills and qualities ensure you can build, maintain, and improve applications efficiently while collaborating well within a development team.

What are some typical daily tasks and collaboration expectations for a junior full stack software developer?

As a Junior Full Stack Software Developer, your daily tasks often include writing and testing code for both front-end and back-end components, debugging issues, and participating in code reviews. You’ll regularly collaborate with other developers, designers, and sometimes product managers during stand-up meetings or sprint planning sessions to ensure alignment on project goals. It's common to work under the guidance of senior developers while learning best practices and receiving constructive feedback. This collaborative environment not only helps you grow technically but also improves your communication and teamwork skills.

What is the difference between Junior Full Stack Software Developer vs Junior Front End Developer?

AspectJunior Full Stack Software DeveloperJunior Front End Developer
Required SkillsProficiency in both front-end and back-end technologies (HTML, CSS, JavaScript, server-side languages, databases)Strong skills in HTML, CSS, JavaScript, and front-end frameworks (React, Angular)
Work EnvironmentInvolved in both client-side and server-side development, often in full project cyclesPrimarily focused on user interface and client-side features
Common UsageUsed in roles requiring versatile development across the stackUsed in roles specializing in UI/UX and front-end design

The main difference is that a Junior Full Stack Software Developer works on both front-end and back-end tasks, while a Junior Front End Developer focuses solely on the user interface and client-side development. The full stack role requires broader skills, whereas the front-end role specializes in creating engaging user experiences.

What cities near Havertown, PA are hiring for Junior Full Stack Software Developer jobs?

Cities near Havertown, PA with the most Junior Full Stack Software Developer job openings:

Junior Full Stack Software Developer jobs near you

Sr. Full Stack Software Developer

Camden, NJ • On-site

Holtec International
Oil and Gas Extraction • 501 - 1,000 employees

8.0

Company rating: 8.0 out of 10

Based on 16 frontline employees who took The Breakroom Quiz

180th of 495 rated machine equipment manufacturers

Great coworkers

People enjoy working here

Good employer

Learn more about Holtec Internationalexternal

Full-time

Re-posted 13 days ago

Job description

Job Summary:
Holtec International is a company focused on innovative solutions in the engineering sector. They are seeking a Senior Full Stack Software Developer to design, develop, and maintain enterprise applications while serving as a technical subject matter expert and partnering with stakeholders to deliver high-quality software solutions.
Responsibilities:
• Serve as the technical subject matter expert across a portfolio of enterprise applications
• Partner with internal stakeholders to gather requirements, define scope, and identify risks early
• Translate complex business processes into sound technical designs and deliver solutions independently
• Design and document application architecture and database structures
• Enforce coding standards, architectural patterns, and development best practices
• Architect scalable, maintainable solutions and evaluate existing systems for optimization
• Perform peer code reviews and uphold high standards of code quality
• Apply and promote secure software development practices
• Identify technical risks and provide clear, actionable solutions
• Develop well‑structured, efficient, and maintainable code
• Estimate and scope work independently in planning sessions
• Maintain and enhance system and code documentation
• Mentor and support junior developers where applicable
Qualifications:
Required:
• Bachelor’s degree in Computer Science, Engineering, or a related field, with 10+ years of professional software development experience in enterprise environments
• Deep expertise in C#, .NET Core, and .NET Framework, with experience developing, maintaining, and modernizing both modern and legacy codebases across full‑stack applications
• Strong full‑stack development and architecture experience, including RESTful APIs, front‑end technologies (Blazor, HTML5, CSS3, JavaScript, Bootstrap), and scalable system design utilizing SOLID principles, design patterns, dependency injection, and CQRS
• Advanced SQL Server expertise, including schema design, index strategy, stored procedures, query optimization, and execution plan analysis
• Experience with enterprise authentication and authorization (OAuth2, OIDC, Azure AD / Entra ID or similar), along with secure development practices
• Proven ability to lead and own architectural decisions at both application and database levels, while working effectively across complex, multi‑application enterprise environments
• Strong experience improving and navigating legacy codebases, with a focus on enhancing performance, scalability, and maintainability
• Experience with Git-based version control, collaborative code review, DevOps practices (CI/CD pipelines), and containerization technologies (Docker)
• Familiarity with performance profiling and troubleshooting tools, application modernization/migration (.NET Framework to .NET Core), and emerging development practices including AI-assisted coding tools
• Strong communication and stakeholder management skills, with the ability to translate business requirements into technical solutions, work independently, manage priorities, and deliver high-quality outcomes
• High attention to detail with a strong focus on code quality, documentation, and user experience, including UI/UX considerations
Company:
Holtec International is a global turnkey supplier of equipment and systems for the energy industry. Founded in 1986, the company is headquartered in Jupiter, USA, with a team of 501-1000 employees. The company is currently Late Stage.

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