Fullstack Developer

Overview

We are seeking a highly skilled Full Stack Engineer to design, build, and maintain modern, scalable web applications with a strong emphasis on data visualization and user-centric design. This role spans front-end development, back-end services, data integration, and analytics, working across the full software development lifecycle from concept through production.
Under the direction of the Head of Data Analytics & Architecture, this individual will partner closely with data engineers, analysts, and business stakeholders to deliver intuitive applications and meaningful insights through modern visual analytics.

Key Responsibilities

50% Full Stack Software Development (React / .NET Focus)

• Design and develop responsive, interactive front-end applications using React, TypeScript, HTML, and CSS.
• Build and maintain back-end services, APIs, and integrations using ASP.NET and related technologies.
• Develop and consume RESTful APIs and manage secure data exchanges across systems.
• Architect scalable, performant, and secure application solutions following modern best practices.
• Own end-to-end delivery: development, testing, debugging, deployment, and post-launch support.
• Collaborate closely with data engineers, business partners, and product stakeholders to translate requirements into usable features.
• Partner with infrastructure and operations teams to improve performance, scalability, and reliability of internal systems.

20% Data Visualization & Analytics (Critical Skill Area)

• Design, build, and maintain advanced dashboards, reports, and analytics solutions that drive decision-making.
• Develop rich, interactive data visualizations using Power BI, Tableau, and/or custom React-based visualization components.
• Apply visualization best practices and UX principles to present complex data clearly and effectively.
• Translate business and analytical requirements into actionable visual stories.
• Perform data validation, analysis, and quality checks to ensure accuracy and consistency.

15% Data Engineering, AI & Automation

• Design and implement data pipelines using Microsoft Fabric or similar tools.
• Build ingestion pipelines from APIs, databases, and external data sources.
• Develop and deploy machine learning models and AI-enabled data agents using notebook-based environments.
• Integrate structured enterprise data with external and web-based data sources to support advanced analytics.
• Utilize data analysis to surface insights and optimization opportunities.

10% Security & Platform Collaboration

• Collaborate with cybersecurity teams to ensure applications adhere to secure coding standards and organizational policies.
• Support authentication, authorization, identity management, and secure API integrations.

5% Additional Responsibilities

• Stay current with emerging technologies in application development, analytics, cloud platforms, AI, and security.
• Document system architectures, data flows, configurations, and operational processes.
• Participate in training, knowledge sharing, and continuous improvement initiatives.
• Support evolving business and technology needs as required.

Required Skills & Qualifications

• 5+ years of experience as a Full Stack Engineer or similar role.
• Bachelor's degree in Computer Science, Information Technology, Data Science, or a related field.
• Strong expertise in React and modern JavaScript/TypeScript front-end development.
• Strong back-end experience with ASP.NET (C#) and API development.
• Proven experience delivering data-driven applications with meaningful visualizations.
• Hands-on experience with Power BI, Tableau, or embedded web-based visualization tools.
• Experience with SQL and relational databases (e.g., SQL Server), including schema design and query optimization.
• Familiarity with Azure services, CI/CD pipelines, and Git-based version control.
• Experience building and supporting end-to-end applications in cloud environments.
• Understanding of data engineering, ETL processes, and data warehousing concepts.
• Working knowledge of machine learning concepts and analytics workflows.

Soft Skills & Competencies

• Strong problem-solving and analytical skills.
• Excellent written and verbal communication abilities.
• Ability to explain technical decisions to non-technical stakeholders.
• Comfortable managing multiple priorities in a fast-paced environment.
• Collaborative mindset with a strong sense of ownership and accountability.

Job Type & Location
This is a Contract to Hire position based out of Chicago, IL.
Pay and Benefits
The pay range for this position is $80.00 - $95.00/hr.
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 Chicago,IL.
Application Deadline
This position is anticipated to close on Apr 15, 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.