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Software Engineer Fullstack Jobs in Illinois (NOW HIRING)

McMaster-Carr

Senior Software Engineer

Chicago, IL · On-site

$235K - $310K/yr

What You Bring * 4+ years of professional fullstack or backend software engineering experience (see our Software Engineer II role for earlier career experience) * Experience in delivering proof-of ...

HelloJoy

Lead Fullstack Software Engineer

Chicago, IL · On-site +1

As a Lead Software Engineer... * You have 7+ years of experience shipping software as part of a product development team * You feel confident playing a lead role in technical analysis & design ...

HelloJoy

Lead Fullstack Software Engineer

Chicago, IL · On-site

$100K - $150K/yr

As a Lead Software Engineer... * You have 7+ years of experience shipping software as part of a product development team * You feel confident playing a lead role in technical analysis & design ...

McMaster-Carr

Lead Software Engineer

Chicago, IL · On-site

$235K - $310K/yr

What You Bring * 4+ years of professional fullstack or backend software engineering experience (see our Software Engineer II role for earlier career experience) * Experience in delivering proof-of ...

Jump Trading

Software Engineer | GUI

Chicago, IL

... we leverage software & hardware engineering, data science and research, to deliver the ... fullstack fundamentals and the ability to work across frontend and backend boundaries Strong focus ...

New

McMaster-Carr

Lead Software Engineer

Chicago, IL · On-site

$235K - $310K/yr

What You Bring * 4+ years of professional fullstack or backend software engineering experience (see our Software Engineer II role for earlier career experience ) * Experience in delivering ...

McMaster-Carr

Senior Software Engineer

Chicago, IL · On-site

$235K - $310K/yr

What You Bring * 4+ years of professional fullstack or backend software engineering experience (see our Software Engineer II role for earlier career experience ) * Experience in delivering ...

Meds

Senior Software Engineer

Chicago, IL · On-site

$126K - $166K/yr

At BlueChew, "Fullstack" means more than just connecting a database to a UI. You will be building ... Be on the cutting edge of both telemedicine and software engineering * Contribute as a core team ...

Meds

Senior Software Engineer

Chicago, IL · On-site

$126K - $166K/yr

At BlueChew, "Fullstack" means more than just connecting a database to a UI. You will be building ... Be on the cutting edge of both telemedicine and software engineering * Contribute as a core team ...

Meds

Senior Software Engineer

Chicago, IL

$126K - $166K/yr

At BlueChew, "Fullstack" means more than just connecting a database to a UI. You will be building ... Be on the cutting edge of both telemedicine and software engineering * Contribute as a core team ...

Hudson River Trading

Fullstack Developer

Chicago, IL

Fullstack Developers at HRT work either on our platform team (i.e. you work on infrastructure & tooling that supports all of our research & trading capabilities) or our acceleration team (i.e. you ...

Zoro

Software Engineer II, Promos

Chicago, IL · On-site

As a Software Engineer II, you will: * Embrace an AI-first mindset and integrate AI-driven ... Strong understanding of the interplay between front-end and back-end technologies in a fullstack ...

Hudson River Trading

Fullstack Developer

Chicago, IL · On-site

Fullstack Developers at HRT work either on our platform team (i.e. you work on infrastructure & tooling that supports all of our research & trading capabilities) or our acceleration team (i.e. you ...

Navtech, Inc.

Fullstack Developers

Chicago, IL · On-site

Hello, I have an opportunity for "Fullstack Developers" and looking for a candidate who can join Immediately if you are interested reply me with your updated resume or consultant's contact details ...

Photon

Fullstack Developer (Node JS + React JS)

Chicago, IL · On-site

$52.75 - $68.25/hr

Fullstack Developer (Node JS + React JS) Location: Chicago, IL About Us: For the past 20 years, we ... Passion for building high-quality software. Experience with Agile development methodologies is a ...

Laksan Technologies

Java Fullstack Developer

Chicago, IL · On-site

$54 - $69.75/hr

Java Fullstack Developer Location: Chicago, Illinois Job Type: C2C Onsite Long-term We are looking ... deliver high-quality software.Participate in code reviews, design discussions, and agile ...

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Software Engineer Fullstack information

How does a Fullstack Software Engineer typically collaborate with other team members during a project?

Fullstack Software Engineers often work closely with both frontend and backend specialists, designers, and product managers to deliver end-to-end solutions. They participate in agile ceremonies such as daily stand-ups, sprint planning, and code reviews, ensuring alignment across the development process. Effective communication and cross-functional collaboration are key, as fullstack engineers bridge the gap between user-facing features and backend services. This collaborative environment helps foster continuous learning and exposure to diverse technologies.

What is a Software Engineer Fullstack?

A Software Engineer Fullstack is a professional who develops and maintains both the front-end (client side) and back-end (server side) components of web applications. They are proficient in a range of technologies, including user interface design, server programming, databases, and APIs. This role requires a broad understanding of how web applications work from end to end, enabling them to build complete, functional products. Fullstack engineers are valuable for their versatility and ability to collaborate across different areas of a development project.

What are the key skills and qualifications needed to thrive as a Software Engineer Fullstack, and why are they important?

To thrive as a Software Engineer Fullstack, you need strong proficiency in both front-end (e.g., JavaScript, HTML/CSS, frameworks like React or Angular) and back-end (e.g., Node.js, Python, Java, databases) development, typically supported by a degree in computer science or related experience. Familiarity with version control systems like Git, CI/CD pipelines, cloud services, and relevant certifications (such as AWS Certified Developer or similar) is highly beneficial. Effective problem-solving, communication, and teamwork skills help you collaborate across multidisciplinary teams and adapt to evolving project requirements. These combined skills ensure you can build, maintain, and optimize complete web applications that meet both user and business needs.
What are popular job titles related to Software Engineer Fullstack jobs in Illinois? For Software Engineer Fullstack jobs in Illinois, the most frequently searched job titles are:
What job categories do people searching Software Engineer Fullstack jobs in Illinois look for? The top searched job categories for Software Engineer Fullstack jobs in Illinois are:
Software Engineer Fullstack jobs near you
Infographic showing various Software Engineer Fullstack job openings in Illinois as of July 2026, with employment types broken down into 96% Full Time, 2% Part Time, and 2% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution.
Senior Software Engineer

Senior Software Engineer

McMaster-Carr

Chicago, IL • On-site

$235K - $310K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 10 days ago

McMaster-Carr rating

9.6

Company rating: 9.6 out of 10

Based on 8 frontline employees who took The Breakroom Quiz

2nd of 368 rated retail wholesalers

Job description

About the job
Who We Are
McMaster-Carr is a leading e-commerce company that industrial customers have trusted for more than 120 years. Our products help customers restore manufacturing lines quickly, keep operations running smoothly, and prototype the next generation of innovative products.
We earn that trust by offering the right products, making them easy to find, and delivering them fast--so customers can solve problems with speed, precision, and confidence. This role is a pathway to senior engineering management and technical leadership-your growth is determined by your impact, not by tenure.
Our Culture
We intentionally cultivate a culture focused on clear execution and long-term growth. We are responsible for building systems that endure for decades and support the company's long-term growth. That responsibility means engineering work starts with a deep understanding of the problem and its impact, grounded in clear ownership, open communication, and direct feedback. Our teams are trusted to make thoughtful decisions about how work gets done, balancing a high bar for quality with practical execution. As an engineering leader here, you'll have significant autonomy with end-to-end ownership where you make product decisions while building things real people interact with directly.
How You'll Make An Impact
Our engineering teams operate within domains: distinct, high-impact areas of our platform that let engineers dive deep, build expertise, and release work that matters. Right now, we're actively growing in the following areas:
  • McMaster.ai: Build and scale our domain-expert AI assistant that turns McMaster's product data and customer history into a continuously learning assistant-interpreting intent, narrowing options, explaining tradeoffs, and carrying context across sessions to make complex industrial work feel effortless.
  • Customer Navigation: build and evolve the systems that help our customers find, evaluate, and understand millions of industrial products across our digital publications, including improving search relevance with LLMs and simplifying navigation across our product offering.
  • Order-to-Payment Flow: design and evolve end-to-end ordering experiences that reduce friction from checkout to mobile ordering.
  • Product Merchandising: strengthen the internal platforms that power sourcing, inventory planning, receiving, and supplier relationships, helping the company make disciplined investments and scale responsibly.
  • Fulfillment & Automation: lead development of software that integrates with warehouse operations, fulfillment, delivery, and customer service to reduce manual work and get orders to customers faster.

What You'll Do
  • The first 30 days are about learning with purpose: understanding our goals, getting a clear picture of the customer journey, and building fluency in the codebase. As you onboard, you'll design and implement features that are small enough to help you ramp quickly, but substantial enough to matter.
  • After you've delivered your first features, you'll start taking on less-defined challenges where you'll sharpen requirements and produce thoughtful, durable solutions that meaningfully improve the customers experience. In doing so, you'll create clarity and momentum that enables you and your teammates to deliver exceptional experiences.

What You Bring
  • 4+ years of professional fullstack or backend software engineering experience (see our Software Engineer II role for earlier career experience)
  • Experience in delivering proof-of-concepts and resilient production systems, contributing from early research and architectural design to development, launch, and iterative refinement.
  • Ability to write high-quality, maintainable, and scalable code with Systems Design and SOLID principles.
  • Experience improving system architecture, testing, and monitoring to ensure reliability and performance.
  • A commitment to developing others; using code reviews, coaching, and shared best practices to help the team deliver its best work.
  • Ability to collaborate cross-functionally with operations, product, and UX teams to ensure business value and user impact.
  • A track record of designing platforms and customer experiences that will endure over years while remaining close to the details of execution.

Technologies We Use
  • Backend: NET, .NET 10, ASP.NET Core, C#, Python
  • Frontend: React, Typescript, JavaScript, CSS
  • Database: MongoDB, Elasticsearch, SQL, Db2, Redis
  • Testing: Selenium, Playwright, Xunit, Jest
  • Infrastructure: Kubernetes, Jenkins, Gitlab, Azure, Linux, VMWare, IIS
  • LLMs: OpenAI, Copilot, Claude, Gemini, Grok, perplexity, deepseek
  • Applied AI: RAG, Embeddings, Vectorization, Machine Learning, Computer Vision
  • Dev Tools: Swagger, Git
  • Messaging /Data Streaming: Kafka, MQ

Cash Compensation
  • Total cash compensation is generally around $235,000 to $310,000 and includes a profit sharing based on company profitability.
  • You will also receive a relocation stipend (if applicable) and signing bonus.

Benefits
Growth & Learning
  • 100% tuition reimbursement
  • Informal and formal mentorship
  • Employee resource groups

Health & Wellbeing
  • Medical, dental, pharmacy, and vision plans with no monthly premiums
  • Inclusive, all-gender benefits

Family & Future
  • Paid parental leave for all new parents
  • Adoption and surrogacy assistance
  • First-time home buyer assistance
  • Industry-leading company-funded retirement accounts

Time Off
  • Paid vacation and personal time

Who You Are
We're looking for curious, driven engineers who thrive in collaborative environments and love solving hard problems. Ideal candidates will have:
  • Experience designing and delivering large-scale, service-oriented systems.
  • Strong proficiency in compiled languages such as C#, Java, C++, or Rust.
  • A thoughtful, analytical approach to problem-solving and software design.
  • Clear, confident communication skills across technical and non-technical audiences.
  • Interest in mentoring, coaching, and growing as a leader.

Equal Opportunity Employer
We are proud to be an Equal Opportunity Employer and dedicated to providing employees a workplace with reasonable accommodations and free of discrimination, harassment, and retaliation. At McMaster-Carr, we do not make employment decisions based on age, ethnicity, citizenship status, military status, gender identity and expression, race, religion, disability status, marital status, sexual orientation, or any other legally protected group.
This position is not eligible for work authorization sponsorship by McMaster-Carr.
Data We Collect
We may collect professional, education and employment-related data, and any assessments made throughout the recruiting process, to evaluate candidacy for employment. To communicate with job applicants, we may collect applicant names, contact information, and other personal identifiers, including those outlined in the California customer records statute. Through voluntary disclosure, we may also collect protected classifications under federal or California law (e.g., race, gender, etc.). For additional details about the personal information we collect and its uses, please click here.

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