ZipRecruiter

Log In

1

Junior Computer Science Jobs in Philadelphia, PA

Vangard, Inc.

Senior AI Scientist

Malvern, PA · On-site

You will also mentor junior data scientists and contribute to the growth of our AI safety research ... Bachelor's degree in Computer Science, Statistics, Applied Mathematics, or a related quantitative ...

Scalence L.L.C.

Hadoop/Big-Data Engineer

Pennington, NJ · On-site

... junior team members Qualifications : Required : • Expertise in Hadoop and Spark • Proficiency in Kafka • Strong programming skills in Python • Bachelor's in Computer Science with 8 years or ...

Bread Financial

Lead Data Scientist

Chadds Ford, PA · On-site +1

$144K - $250K/yr

... junior Data Scientists. Lead projects as needed or required - (10%) Minimum Qualifications ... Bachelor's Degree in Statistics, Mathematics, Engineering, Data Science, Computer Science, or ...

Vangard, Inc.

Data Scientist, Specialist

Malvern, PA · On-site

Mentors and develops junior data scientists and analysts. * Identifies and diagnoses data ... E./B.Tech) in Analytics, Applied Mathematics, Economics, Statistics, or Computer Science, or a ...

GreenXT

Junior Electrical Engineer

Philadelphia, PA · On-site

Bachelor of Science Degree in Electrical or Computer Engineering is required * Active DoD Secret Level Security Clearance (or the ability to obtain this clearance upon position acceptance) is ...

KBR

JR Electrical & Computer Engineer

King Of Prussia, PA · On-site

$92K - $112K/yr

KBR's areas of expertise include engineering, logistics, operations, science, program management ... Who You Are You are an Jr. Level Electrical & Computer Engineer who will collaborate with multiple ...

KBR

JR Software Engineer

King Of Prussia, PA · On-site

$94K - $115K/yr

Who You Are You are an Jr. Software Engineer who will perform all activities associated with the ... BA/BS in Computer Science, Software Engineering or related field and 0-3 years of related ...

Mondo

Staff Software Engineer

Horsham, PA · Remote

$80 - $90/hr

Mentor junior and mid-level engineers through code reviews and technical guidance * Drive software ... Bachelor's degree in Computer Science, Engineering, or related field * 10 years of professional ...

previous pagenext page

Showing results 21-40

All JobsComputer Science JobsJunior Computer Science JobsJunior Computer Science Jobs in Philadelphia, PA

Junior Computer Science information

See Philadelphia, PA salary details

$24.2K

$89.8K

$138.8K

How much do junior computer science jobs pay per year?

As of Sep 3, 2026, the average yearly pay for junior computer science in Philadelphia, PA is $89,784.00, according to ZipRecruiter salary data. Most workers in this role earn between $67,600.00 and $87,800.00 per year, depending on experience, location, and employer.

What is a junior computer scientist?

A Junior Computer Scientist is an entry-level professional who typically holds a degree in computer science or a related field. They work under the supervision of senior staff to design, develop, test, and maintain software, algorithms, or systems. Their responsibilities may include coding, debugging, conducting research, and assisting with technical documentation. This role is often a starting point for those looking to advance in the field of computer science, offering valuable hands-on experience and opportunities to learn from more experienced colleagues.

What are the key skills and qualifications needed to thrive as a junior computer scientist?

To thrive as a Junior Computer Scientist, you need a solid understanding of programming languages (such as Python, Java, or C++), algorithms, and data structures, typically supported by a bachelor’s degree in computer science or a related field. Familiarity with version control systems like Git, basic database management, and exposure to development environments are commonly expected. Strong problem-solving abilities, effective communication, and a willingness to learn are essential soft skills for this role. These skills and qualities enable junior computer scientists to contribute to team projects, adapt to new technologies, and efficiently solve real-world technical problems.

What types of projects and responsibilities can a junior computer science professional expect in their first year?

As a Junior Computer Science professional, you can expect to work on a variety of foundational tasks such as debugging code, writing unit tests, and assisting with the development of new features under the supervision of more experienced team members. You may also participate in code reviews, collaborate with cross-functional teams like design and QA, and help maintain documentation. These hands-on experiences are designed to help you build technical skills, understand software development processes, and gradually take on more complex assignments as you gain confidence and expertise.

What is the difference between Junior Computer Science vs Junior Software Developer?

AspectJunior Computer ScienceJunior Software Developer
Required CredentialsDegree in Computer Science or related fieldDegree or coding bootcamp certification
Work EnvironmentAcademic, research, or entry-level tech rolesSoftware development teams, tech companies
Industry UsageUniversities, research labs, tech firmsSoftware companies, startups, IT departments
Common Search/ComparisonYesYes

Junior Computer Science roles typically focus on foundational knowledge, research, or academic settings, requiring a degree in computer science. Junior Software Developer positions are more application-oriented, involving coding and software creation within development teams. While both roles are entry-level, they serve different career paths within the tech industry.

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

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

What are popular job titles related to Junior Computer Science jobs in Philadelphia, PA?

For Junior Computer Science jobs in Philadelphia, PA, the most frequently searched job titles are:

What job categories do people searching Junior Computer Science jobs in Philadelphia, PA look for?

The top searched job categories for Junior Computer Science jobs in Philadelphia, PA are:

What cities near Philadelphia, PA are hiring for Junior Computer Science jobs?

Cities near Philadelphia, PA with the most Junior Computer Science job openings:

Junior Computer Science jobs near you
Infographic showing various Junior Computer Science job openings in Philadelphia, PA as of August 2026, with employment types broken down into 1% As Needed, 82% Full Time, 13% Part Time, 3% Contract, and 1% Nights. Highlights an 79% Physical, 2% Hybrid, and 19% Remote job distribution, with an average salary of $89,784 per year, or $43.2 per hour.

Senior AI Scientist

Vangard, Inc.

Malvern, PA • On-site

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

About the Role

This role sits at the intersection of AI safety research, LLM evaluation, and applied data science. You will design and run adversarial evaluations against production AI agents, develop quantitative frameworks to measure evaluation quality, and translate findings into actionable insights for application teams and business stakeholders. You will also mentor junior data scientists and contribute to the growth of our AI safety research practice.

Responsibilities

  • Design and execute adversarial evaluations of generative AI and agentic systems, probing for safety failures, policy violations, and unexpected behaviors under realistic conditions

  • Apply rigorous experimental design and statistical methodology to AI safety research questions, including evaluation of model robustness and the reliability of automated evaluation systems

  • Develop and validate quantitative frameworks for assessing LLM outputs and measuring evaluation quality at scale

  • Build and maintain data pipelines to process large-scale evaluation outputs, aggregate metrics, and surface trends for research and stakeholder consumption

  • Engage directly with internal stakeholders including application teams, security analysts, and business leaders to explain findings and translate complex analytical results into clear, actionable recommendations

  • Mentor and develop junior data scientists and analysts on the team

  • Stay current with emerging literature in adversarial ML, LLM safety, and AI evaluation; contribute to the team's evolving research agenda

  • Participate in special projects and perform other duties as assigned

Qualifications

  • Minimum 5 years of experience in data science, applied ML research, or AI evaluation roles

  • Hands-on experience with large language models and agentic AI systems, with working knowledge of LLM behavior, failure modes, and safety evaluation techniques

  • Familiarity with adversarial AI concepts including jailbreaks, prompt injection, and model robustness, whether through direct research or applied work

  • Strong programming skills in Python, including experience with data pipelines, large-scale experimentation, and ML libraries such as PyTorch, Hugging Face, or Scikit-learn

  • Solid foundation in statistical reasoning and experimental design: hypothesis formulation, significance testing, and the ability to identify confounds and methodological flaws in existing analyses

  • Experience in financial services, AI safety, trust and safety, or a regulated industry is a strong plus

  • Clear, confident communication skills with the ability to explain technical findings to both research peers and non-technical stakeholders

  • Bachelor's degree in Computer Science, Statistics, Applied Mathematics, or a related quantitative field; Master's degree or equivalent research experience preferred

Special Factors

Sponsorship

Vanguard is not offering visa sponsorship for this position.

About Vanguard

At Vanguard, we don't just have a mission-we're on a mission.

To work for the long-term financial wellbeing of our clients. To lead through product and services that transform our clients' lives. To learn and develop our skills as individuals and as a team. From Malvern to Melbourne, our mission drives us forward and inspires us to be our best.

How We Work

Vanguard has implemented a hybrid working model for the majority of our crew members, designed to capture the benefits of enhanced flexibility while enabling in-person learning, collaboration, and connection. We believe our mission-driven and highly collaborative culture is a critical enabler to support long-term client outcomes and enrich the employee experience.

Apply