.Net Architect

TEKsystems; United States; Hybrid; USD 96,000 - 110,000; Full time

Benefits offered by this job

Medical, dental & vision

401(k) Retirement Plan – Pre-tax and R

Life Insurance (Voluntary Life & AD&D)

Short and long-term disability

Health Spending Account (HSA)

Transportation benefits

Employee Assistance Program

Time Off/Leave

Job summary

TEKsystems is seeking a senior C#/.NET Architect to lead the design, architecture, and delivery of high-complexity software systems in a hybrid Philadelphia environment. You will balance strategic oversight with hands-on development, modernizing legacy platforms while enabling greenfield initiatives.

The role emphasizes technical authority, establishing standards, and mentoring developers to ensure secure, scalable, and maintainable solutions aligned with business priorities.

Qualifications

• Bachelor’s Degree in Computer Science or related field or equivalent work experience.
• 10+ years developing in listed technology.

Responsibilities

• Lead end-to-end design, development, and delivery of high-complexity software systems and features.
• Conduct architectural reviews for developers and partners, guiding technology choices and modernization strategies.
• Translate business needs into scalable, technically sound solutions.
• Collaborate with architects and leadership to shape system and application architecture focusing on reliability and performance.
• Identify architectural improvements, risks and debt; lead remediation efforts.
• Serve as technical advisor for systems under development and maintenance.
• Mentor and support developers through code reviews, pair programming, and coaching.
• Promote development best practices and coding standards, enabling continuous improvement.
• Act as liaison across departments, explaining complex ideas to technical and non-technical stakeholders.
• Continuously expand knowledge of emerging technologies and assess applicability.

Skills

C#

.NET

SQL

ASP.NET

Entity Framework

RESTful API

JSON

JavaScript

Azure

React

CI/CD

Architectural patterns

Mentoring

Education

Bachelor’s Degree in Computer Science or related field

Tools

CI/CD tools

Azure

Job description

Description

TEKsystems has a need for C# Developers as they grow their team due to a modernization of their platform. The IT .NET Technical Architect will serve as the technical authority leader for our development team, responsible for designing scalable, maintainable solutions and establishing and governing technical standards across all .NET-based projects. In a small development organization, the architect balances strategic architectural oversight with direct technical contribution, ensuring solutions are secure, scalable, maintainable, and delivery-focused. The .NET Technical Architect is responsible for defining, guiding, and evolving the application architecture across the organization while remaining hands‑on with design and critical development efforts. This role is accountable for maintaining the architectural integrity of the portfolio, modernizing legacy systems while enabling new, greenfield solutions that align with business priorities.

Essential Responsibilities:

• Lead end-to-end design, development, and delivery of high-complexity software systems and features.
• Conduct architectural reviews for both developers and contracted partners, and approve or recommend technology choices, frameworks, and modernization strategies
• Translate abstract or ambiguous business needs into clear, scalable, and technically sound solutions.
• Collaborate with architects and the Director of Software Engineering to shape system and application architecture, with a focus on reliability, performance, and maintainability.
• Proactively identify architectural improvements, architectural risks, and technical debt; and propose and lead remediation efforts.
• Serve as a subject matter expert and technical advisor for systems under active development and long-term maintenance.
• Mentor and support Developers at all levels through code reviews, knowledge sharing, pair programming, and coaching.
• Establish and promote development best practices, coding standards, and continuous improvement processes.
• Act as a technical liaison across departments, effectively communicating complex ideas to technical and non-technical stakeholders.
• Continuously expand knowledge of emerging technologies and evaluate their applicability to the current environment.

Technical Skills:

• Demonstrated expertise in: C#, SQL, JavaScript, Entity Framework, ASP.NET
• Proficient with: JSON, RESTful API design, CI/CD practices
• Working knowledge of or exposure to: React, cloud services (e.g., Azure), containerization concepts
• Familiarity with architectural patterns such as layered architecture, microservices, and domain-driven design

Requirements:

Education: Bachelor’s Degree Computer Science or in relevant field or equivalent work experience

Experience: 10+ years developing in listed technology.

Skills

.net, C#

Top Skills Details

.net,C#

Additional Skills & Qualifications

• Communication skills: expert ability in writing clear, concise documents and communicating with both technical and nontechnical team members
• Organizational skills: able to work on multiple initiatives concurrently while mentoring junior staff
• Analytical and critical thinking skill: able to problem solve and consider multiple angles or impacts, including consideration of future organizational goals
• Ability to adapt: able to change direction and innovate and able to spot pitfalls requiring a direction pivot and propose new course
• Independence: works independently, assists colleagues when needed, and seeks help from colleagues, customers, and leaders as appropriate

Experience Level

Intermediate Level

Job Type & Location

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

Pay and Benefits

The pay range for this position is $70.00 - $80.00/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 jobclassification and length of employment. Benefits are subject to change and may besubject to specific elections, plan, or program terms. If eligible, the benefitsavailable 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 Sep 25, 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.

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: 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: 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): 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.