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Senior Python Developer Jobs in Iselin, NJ (NOW HIRING)

Python Developer

Jersey City, NJ · On-site

$55 - $75.75/hr

Senior Python Developer Location: Jersey City New Jersey ( 3 days onsite 2 days remote) Experience: 5 + years required Must Have Skills: : Design, development and support of Equity Derivative ...

We are seeking an experienced Senior Python Engineer to design, build, and maintain scalable, high-quality software systems. This role requires strong expertise in Python, system design, and modern ...

Python Developer

Jersey City, NJ · On-site

$54.62 - $64.62/hr

The Cleared Derivatives Risk Technology (CDRT) team has an opportunity for a Senior Python (Quartz) Developer. This role will participate in the design, development, and support of our OTC and ...

Python Developer

Jersey City, NJ

$52.50 - $72.25/hr

Senior developer (4 to 5 years preferred), even a smart and technically developer (2 or 3 years) is fine. Technology Stack: Python (Key), Big data, Hadoop (Preferred), Java Skills: Sound technologist ...

Python Developer

Jersey City, NJ · On-site

$52.50 - $72.25/hr

Senior developer (4 to 5 years preferred), even a smart and technically developer (2 or 3 years) is fine. • Technology Stack: Python (Key), Big data, Hadoop (Preferred), Java Skills: Sound ...

Senior Python Web Developer

Warren, NJ · On-site

$125K - $169K/yr

Senior Python Web Developer Experience: 10+ yrs. Location: Warren, NJ Primary Responsibilities: Develop and maintain web applications and backend services using Python-based frameworks. Build and ...

Python Developer III

Jersey City, NJ

$52.50 - $72.25/hr

This role is for a Senior Python Developer within the Quantitative Investment Strategies (QIS) Technology team, responsible for the design, development, and evolution of a complex, largescale ...

Senior AWS Python Developer

New York, NY · On-site

$132K - $178K/yr

Job Title: Sr. AWS Python Developer Job Location: New York, NY Job Type: Contract * Develop and maintain highly scalable high performance and highly available systems Write well tested efficient and ...

Python Developer III

Jersey City, NJ · On-site

$55 - $75.75/hr

This role is for a Senior Python Developer within the Quantitative Investment Strategies (QIS) Technology team, responsible for the design, development, and evolution of a complex, large-scale ...

We are looking for a Senior Python/Django developer to start working with us immediately. Requirement: * Few years of hands-on experience with Python * Some experience with Django or Flask * Good ...

We are looking for a Senior Python/Django developer to start working with us immediately. Requirement: * Few years of hands-on experience with Python * Some experience with Django or Flask * Good ...

Showing results 41-60

Senior Python Developer information

See Iselin, NJ salary details

$55.9K

$144.2K

$198K

How much do senior python developer jobs pay per year?

As of Sep 2, 2026, the average yearly pay for senior python developer in Iselin, NJ is $144,175.00, according to ZipRecruiter salary data. Most workers in this role earn between $123,400.00 and $166,000.00 per year, depending on experience, location, and employer.

What are the main responsibilities of a senior Python developer?

A Senior Python Developer is responsible for designing, developing, and maintaining complex software applications using the Python programming language. They lead the technical aspects of projects, mentor junior developers, and ensure code quality through code reviews and best practices. Additionally, they collaborate with cross-functional teams to gather requirements, solve technical challenges, and deploy scalable and efficient solutions. Senior Python Developers are also expected to stay updated with the latest trends and advancements in Python and related technologies.

What are the key skills and qualifications needed to thrive as a senior Python developer?

To thrive as a Senior Python Developer, you need advanced proficiency in Python programming, experience with software architecture, and a solid understanding of algorithms and data structures, usually backed by a degree in computer science or related fields. Familiarity with frameworks like Django or Flask, version control systems such as Git, and containerization tools like Docker are typically required, alongside knowledge of modern CI/CD pipelines. Strong problem-solving abilities, effective communication, and leadership skills help you collaborate with teams and mentor junior developers. Mastery of these skills ensures the delivery of scalable, maintainable software solutions and the ability to drive technical excellence within development teams.

What are some common challenges faced by senior Python developers when leading a development team?

Senior Python Developers often encounter challenges such as balancing hands-on coding with mentoring junior team members and ensuring code quality across the team. They are also responsible for making architectural decisions, which requires staying updated on best practices and emerging Python frameworks. Additionally, coordinating collaboration between cross-functional teams (like DevOps, QA, and front-end developers) can be complex, especially in agile environments where requirements may shift rapidly. Overcoming these challenges helps foster a productive and innovative team culture.

What is the difference between Senior Python Developer vs Python Developer?

AspectSenior Python DeveloperPython Developer
Required ExperienceTypically 5+ years, with leadership and complex project experienceUsually 1-3 years, focusing on core Python skills
ResponsibilitiesDesigning architecture, mentoring, handling complex systemsWriting code, debugging, implementing features
CertificationsOptional but beneficial (e.g., Python certifications, cloud certs)Often not required
Work EnvironmentCollaborative teams, project planning, code reviewsDevelopment-focused, task-oriented

The main difference between a Senior Python Developer and a Python Developer lies in experience, responsibilities, and leadership. Senior developers handle complex projects, mentor others, and often participate in architecture decisions, while Python Developers focus on coding and feature implementation. Both roles are essential in tech companies, but the senior role requires more experience and broader skills.

Are senior Python developers still in demand?

Senior Python developers remain in high demand due to the language's versatility in web development, data analysis, machine learning, and automation. Companies seek experienced developers with skills in frameworks like Django or Flask, and proficiency in cloud platforms and APIs enhances job prospects.

How much does a senior Python developer make?

A senior Python developer typically earns between $100,000 and $150,000 annually, depending on experience, location, and industry. They often possess strong skills in frameworks like Django or Flask and may hold certifications or advanced degrees that influence salary levels.

What does a senior Python developer do?

A senior Python developer designs, develops, and maintains complex software applications using Python. They often lead projects, review code, optimize performance, and collaborate with cross-functional teams, requiring strong problem-solving skills and knowledge of frameworks like Django or Flask. Additionally, they may mentor junior developers and ensure code quality through testing and best practices.

What are the most commonly searched types of Python Developer jobs in Iselin, NJ?

The most popular types of Python Developer jobs in Iselin, NJ are:

What job categories do people searching Senior Python Developer jobs in Iselin, NJ look for?

The top searched job categories for Senior Python Developer jobs in Iselin, NJ are:

What cities near Iselin, NJ are hiring for Senior Python Developer jobs?

Cities near Iselin, NJ with the most Senior Python Developer job openings:

Infographic showing various Senior Python Developer job openings in Iselin, NJ as of August 2026, with employment types broken down into 1% Internship, 87% Full Time, 4% Part Time, and 8% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $144,175 per year, or $69.3 per hour.

Sr. Python Developer /Financial Client

Cardinal Integrated Technologies Inc

Monmouth Junction, NJ • On-site

$124K - $167K/yr

Full-time

Re-posted 24 days ago


Job description

Job Summary:
Cardinal Integrated Technologies Inc is seeking a Senior Python Developer with AWS experience to work with Principal Financial Group. The role involves hands-on coding in Python, transforming the client reporting infrastructure using cloud technology, and integrating Wells Fargo IAA Account data into the system.
Responsibilities:
• Able to work with guidance on software development/solutions.
• With guidance, conduct analysis and development, elicit requirements, write correct and clean coding, automated testing, debugging, documentation, quality assurance review, implementation and maintenance.
• Able to work with guidance on multiple layers of the solution if needed.
• Participates in technical design of features.
Qualifications:
Required:
• 5+ years of experience with Cloud - must have AWS experience.
• Hands on cloud development experience in AWS.
• Strong communications skills and ability to work independently.
• Associate's or bachelor's degree (preference in a computer science, technology, engineering or math-related field or equivalent experience).
• 4-6 years work experience or equivalent experience.
• Proven experience as an IT professional.
• Ability to obtain certification(s) in an IT related field.
• Basic knowledge of insurance and financial services products.
• Basic planning, organizational, problem-solving, analytical, decision-making and communication skills.
• Proficiency with database applications.
• Knowledge of mainframe, distributed and/or web programming language.
• Must be able to maintain a high degree of accuracy and confidentiality.
• Must have the desire to learn new technology and continuously grow.
• Ability to work on cross-functional teams and collaborate with both IT and non-IT partners.
• Some travel may be required, including overnight stays.
• May be required to provide on-call support.
Preferred:
• Basic leadership skills.
• Excellent time management skills.
• Financial Services/ Investment Management company experience.
• Track record of 1+ years working on dedicated projects/programs.
Company:
We are a company of IT professionals who passionately believe that good quality products & services are delivered by great resources. Founded in 2013, the company is headquartered in Monmouth Junction, USA, with a team of 201-500 employees. The company is currently Growth Stage.