.NET Developer

TEK Systems; Philadelphia (Philadelphia County); Hybrid; USD 55,000 - 76,000; Full time

Benefits offered by this job

Medical, dental & vision

401(k) Retirement Plan

Life Insurance

Disability insurance

Health Spending Account (HSA)

Transportation benefits

Employee Assistance Program

Time Off / PTO

Job summary

TEKsystems is seeking a Developer II for a contract role in Philadelphia, PA, blending front-end and back-end work. You will independently program enhancements, gather complex requirements, and mentor junior developers while improving documentation and processes.

The ideal candidate has 5–8 years of experience with C#, ASP.NET, React, SQL, and related technologies, and embraces modern development practices in a hybrid work setting.

Qualifications

• Bachelor's degree or equivalent work experience.
• 5-8 years developing in listed technology.
• Experience with ASP.NET, C#, React, and SQL.

Responsibilities

• Collaborate with internal and external partners to gather, document, and clarify requirements independently.
• Independently design algorithms, workflows, and system documentation for assigned projects.
• Produce efficient, high-quality code and conduct thorough testing and deployment activities.
• Diagnose and resolve moderate to complex production issues without supervision.
• Drive technical documentation for workflows, processes, and architectural changes.
• Lead small technical initiatives and recommend software improvements proactively.
• Actively mentor and review work from Developer I and Junior Developer team members.
• Demonstrate initiative in learning and applying modern development methodologies and technologies.
• Independently identify skill gaps and request training or resources to support professional growth and project needs.

Skills

C#

SQL

ASP.NET

React

Entity Framework

JavaScript

Education

Bachelor's Degree in Computer Science or related field

Tools

ASP.NET Core

DevOps & CI/CD

Design Patterns

Job description

Description

The Developer II is responsible for independently programming enhancements, gathering and documenting moderately complex requirements, resolving production issues self-reliantly, improving documentation standards, and mentoring Developer I and Junior Developers. Expected to demonstrate strong intermediate to nearing advanced technical proficiency and professional soft skills.

Essential Responsibilities

• Collaborate with internal and external partners to gather, document, and clarify requirements independently.
• Independently design algorithms, workflows, and system documentation for assigned projects.
• Produce efficient, high-quality code and conduct thorough testing and deployment activities.
• Diagnose and resolve moderate to complex production issues without supervision.
• Drive technical documentation for workflows, processes, and architectural changes.
• Lead small technical initiatives and recommend software improvements proactively.
• Actively mentor and review work from Developer 1 and Junior Developer team members.
• Demonstrate initiative in learning and applying modern development methodologies and technologies.
• Independently identify skill gaps and request training or resources to support professional growth and project needs.

Technical Skills

• ASP.Net and Dot Net Framework, C#, SQL, JavaScript, Entity Framework, and related skills.
• REACT, ASP.NETCORE, Design Patterns, DevOps integration and CI/CD pipelines.

Core Skills

• Communication skills: proficient in writing clear, concise documents and communicating with both technical and nontechnical team members.
• Organizational skills: able to work on more than one assignment or project concurrently.
• Analytical and critical thinking skill: able to problem solve and consider multiple angles or impacts, including future use cases.
• Ability to adapt: able to change direction and innovate.
• Independence: works independently and seeks help from peers and leaders as appropriate.
• Curiosity: interested in understanding existing and emerging technology, interested in the business benefit and purpose of solutions.

Requirements

• Education: Bachelors Degree in relevant field or equivalent work experience.
• Experience: 5-8 years developing in listed technology.

Skills

C#, Sql, ASP.NET, entity framework, React

Top Skills Details

C#,Sql,ASP.NET,entity framework,React

Additional Skills & Qualifications

Blazr and React

Experience Level

Intermediate Level

Job Type & Location

This is a Contract position based out of Philadelphia, PA.

Pay and Benefits

The pay range for this position is $40.00 - $55.00/hr.

Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:

• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

Workplace Type

This is a hybrid position in Philadelphia, PA.

Application Deadline

This position is anticipated to close on Oct 7, 2026.

About TEKsystems

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

Equal Opportunity Employer

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

About TEKsystems and TEKsystems Global Services

We're a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We're a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We're strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We're building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI)

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.