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Senior Full Stack Software Engineer Jobs in Berlin, NJ

Xactus

Senior Full Stack Engineer

Broomall, PA · On-site +1

The Senior Full Stack Engineer is a senior individual contributor responsible for designing ... Minimum of 7 years of professional software development experience, with strong hands-on experience ...

HHAeXchange

Sr. Full Stack Engineer

Philadelphia, PA · Remote

$140K - $160K/yr

We're looking for a Sr. Full Stack Engineer who's eager to think big and build products that make a ... Mentor fellow software engineers, fostering a culture of collaboration, accountability, and ...

HHAeXchange

Sr. Full Stack Engineer

Philadelphia, PA

$140K - $160K/yr

We're looking for a Sr. Full Stack Engineer who's eager to think big and build products that make a ... Mentor fellow software engineers, fostering a culture of collaboration, accountability, and ...

HHAeXchange

Sr. Full Stack Engineer

Philadelphia, PA · On-site +1

$140K - $160K/yr

We're looking for a Sr. Full Stack Engineer who's eager to think big and build products that make a ... Mentor fellow software engineers, fostering a culture of collaboration, accountability, and ...

Certara

Senior Software Engineer

Radnor, PA · On-site

$110K - $145K/yr

Your expertise in software development and commitment to delivering high-quality, compliant ... Leveraging your expertise as a Senior Full Stack Developer, you will design, develop, and maintain ...

Certara USA, Inc.

Senior Software Engineer

Radnor, PA · On-site

$110K - $145K/yr

Your expertise in software development and commitment to delivering high-quality, compliant ... Leveraging your expertise as a Senior Full Stack Developer, you will design, develop, and maintain ...

Next Step Systems

Full Stack Developer

Philadelphia, PA · On-site

... Software Engineer, Software Development, Programmer Analyst, Programming, Pennsylvania Recruiters, IT Jobs, Pennsylvania Recruiting Looking to hire for similar positions in Philadelphia, PA or in ...

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All JobsFull Stack Software Engineer JobsSenior Full Stack Software Engineer JobsSenior Full Stack Software Engineer Jobs in Berlin, NJ

Senior Full Stack Software Engineer information

See Berlin, NJ salary details

$44.5K

$134.7K

$190.4K

How much do senior full stack software engineer jobs pay per year?

As of Aug 11, 2026, the average yearly pay for senior full stack software engineer in Berlin, NJ is $134,727.00, according to ZipRecruiter salary data. Most workers in this role earn between $111,000.00 and $157,900.00 per year, depending on experience, location, and employer.

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

To thrive as a Senior Full Stack Software Engineer, you need deep expertise in both front-end and back-end development, strong problem-solving abilities, and a solid foundation in computer science principles, typically demonstrated by a bachelor’s or master’s degree in a related field. Familiarity with frameworks and languages like React, Angular, Node.js, Python, and proficiency in using cloud platforms, version control systems like Git, and continuous integration tools is crucial, and relevant certifications are an advantage. Exceptional communication, leadership, and teamwork skills help you effectively coordinate with cross-functional teams and mentor junior engineers. These skills ensure you can deliver robust, scalable solutions while driving project success and fostering a collaborative development environment.

What does a senior full stack software engineer do?

A typical day for a Senior Full Stack Software Engineer involves designing and implementing new features, reviewing and improving code, and collaborating with product managers, designers, and other developers to deliver project goals. You might split your time between writing code for both front-end and back-end systems, participating in daily stand-up meetings, and providing technical guidance to junior team members. The role often requires balancing hands-on development with architectural planning and problem-solving for complex technical challenges. You’ll also frequently interact with stakeholders to gather requirements and provide updates, ensuring alignment throughout the software development lifecycle.

What is a senior full stack software engineer?

A Senior Full Stack Software Engineer is an experienced developer responsible for designing, building, and maintaining both front-end and back-end systems in web or software applications. They work with a variety of technologies, frameworks, and databases to ensure seamless functionality across the entire software stack. In addition to coding, they often provide technical leadership, mentor junior developers, and contribute to architectural decisions. Their role requires strong problem-solving skills, an understanding of best practices, and the ability to collaborate with cross-functional teams to deliver high-quality software solutions.

What are popular job titles related to Senior Full Stack Software Engineer jobs in Berlin, NJ? For Senior Full Stack Software Engineer jobs in Berlin, NJ, the most frequently searched job titles are:
What cities near Berlin, NJ are hiring for Senior Full Stack Software Engineer jobs? Cities near Berlin, NJ with the most Senior Full Stack Software Engineer job openings:
Senior Full Stack Software Engineer jobs near you
Infographic showing various Senior Full Stack Software Engineer job openings in Berlin, NJ as of August 2026, with employment types broken down into 1% Internship, 81% Full Time, 14% Part Time, and 4% Contract. Highlights an 86% Physical, 4% Hybrid, and 10% Remote job distribution, with an average salary of $134,727 per year, or $64.8 per hour.

Sr. Full Stack Software Developer

Holtec International

Camden, NJ • On-site

Full-time

Re-posted 25 days ago

Holtec International rating

8.0

Company rating: 8.0 out of 10

Based on 16 frontline employees who took The Breakroom Quiz

175th of 487 rated machine equipment manufacturers

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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