Off-the-shelf tools often fail local business needs. At TwinCore, we build custom software for Illinois companies that need more than templates. Whether you’re in logistics, fintech, healthcare, or retail — our solutions help you streamline operations, automate processes, and grow faster.
With teams experienced in serving clients from Chicago to Peoria, we understand how to deliver reliable software that fits real-world workflows. From backend architecture to UI — everything is engineered to serve your team, your goals, and your industry.
Disconnected tools and manual workarounds slow teams down. We build systems that streamline tasks, cut delays, and help teams work in sync.
Cut Human Error to a Minimum
Automated logic and clear interfaces reduce mistakes in critical operations — from data handling to approvals and reporting.
Build in Compliance from Day One
Forget spreadsheets and after-the-fact audits. We embed rules, permissions, and logs right into your software so compliance runs in the background.
See the Full Picture, Instantly
show what’s happening — across operations, in real time.
Custom Software Services in Chicago That Drive Business Forward
Digital Acceleration & Transformation in Chicago
In a city as competitive and connected as Chicago, legacy systems aren’t just outdated — they’re a liability. We help local companies modernize operations, connect digital channels, and automate core workflows. Whether you’re launching a new SaaS platform, syncing cloud tools, or digitizing paper-based processes — our Chicago-based custom software development brings real outcomes to your transformation roadmap.
Product Engineering & System Extension
We build and extend software that fits the way Chicago businesses actually work. From refining third-party tools to engineering new custom platforms — TwinCore creates systems that are clean, scalable, and deeply tailored. Whether you're in healthcare, logistics, or local services, our team understands the operational challenges unique to Chicago’s business ecosystem.
Process Automation for Chicago Enterprises
Manual tasks are everywhere — approvals, reporting, dispatching. We replace them with workflow engines, custom APIs, and backend automation built to your stack. Our software is engineered to handle complexity, cut down delays, and unlock efficiency across departments. With native support for RPA and AI integration, Chicago businesses can eliminate bottlenecks, not just labor.
Web & Mobile App Development in Chicago
From customer portals to internal control panels, we build full-stack web and mobile applications that scale. Our apps power logistics platforms, healthcare dashboards, delivery trackers, and more — all optimized for performance, security, and user experience. We work with React, .NET, native Android/iOS, and hybrid stacks. Everything is built to run smooth — and maintainable for the long term.
Cloud-Based Software Solutions
Chicago businesses are moving fast to the cloud — and we’re building the platforms they need. Whether you’re designing a new SaaS product or lifting legacy systems to Azure or AWS, our engineers create cloud-native software that’s built for scale and uptime. Microservices, containers, serverless — we architect for long-term stability and cost efficiency.
Data Dashboards & Analytics for Chicago Teams
In a city of logistics hubs, service providers, and real-time decisions — visibility is critical. We build data pipelines and dashboards that integrate with your APIs, databases, and CRMs — and show you exactly what’s happening across the business. Whether you’re tracking warehouse efficiency or customer behavior, TwinCore delivers actionable insights, not vanity metrics.
Infrastructure Engineering & Scalability
Performance matters. We help Chicago companies scale smoothly — from backend optimization to resilient infrastructure setup. That includes distributed databases, caching systems, job queues, observability tools, and CI/CD pipelines. We don’t just build the software — we build the foundation that keeps it fast and reliable as traffic grows.
Software Consulting & Strategic Engineering
Not sure what to build, or how? We help Chicago-based tech leaders evaluate their stack, audit codebases, and prioritize features before writing a single line of code. From MVP launches to full digital overhauls — we bring senior technical guidance aligned with business impact. The result? You don’t just ship — you ship right.
Legacy Software Modernization
Old tech piles up fast in fast-moving cities. We help Chicago enterprises migrate away from legacy platforms without losing core business logic. Whether it’s moving from ASP.NET WebForms to modern .NET Core, breaking monoliths into microservices, or modernizing an internal ERP — we upgrade your systems while preserving what works.
Industry-Specific Software Development for Chicago Businesses
Fintech Software Solutions for Chicago Institutions
From regional banks to fast-moving fintech startups in the Loop, we help Chicago’s financial sector build secure, scalable, and compliant digital platforms. Whether it’s payment processing, lending tools, or internal risk systems — our custom fintech development balances performance with regulatory requirements like PCI DSS and SOC 2.
Healthcare Software Development in Chicago
With some of the nation’s top hospitals and private practices, Chicago demands digital platforms that are both HIPAA-compliant and user-friendly. We build custom healthcare software that simplifies patient records, supports remote care, and integrates smoothly with existing EHR systems — whether you're an outpatient clinic or a full-scale health network.
Logistics Software for Chicago’s Supply Chain Ecosystem
Chicago is a logistics powerhouse — rail, road, air, and warehousing. We build custom logistics platforms to match: dispatch systems, real-time freight tracking, last-mile delivery tools, and integrations with TMS/ERP systems. From O’Hare to Joliet, we help logistics companies cut costs and boost visibility.
E-commerce Platforms for Chicago Retailers
We develop scalable e-commerce software for Chicago’s growing direct-to-consumer and B2B brands. From Shopify and Magento integrations to fully custom storefronts with inventory logic and CRM syncing — our development ensures your customers enjoy a fast, secure, and frictionless experience, on any device.
Retail & POS Development for Brick-and-Mortar Stores
Chicago’s retail scene is diverse — boutiques, franchises, flagship stores. We build custom retail and POS systems that improve in-store operations, unify sales data, and deliver better customer experiences. From POS terminals to loyalty engines — our software connects the dots between tech and transactions.
Enterprise Software for Large-Scale Operations
Chicago enterprises often manage complex internal systems and multi-site operations. Our enterprise development services streamline business workflows, improve cross-departmental visibility, and reduce inefficiencies. From custom dashboards to automation layers — we build the software backbone that supports sustainable growth.
Why Chicago Businesses Trust TwinCore for Mission-Critical Software
In a city known for resilience and innovation, Chicago businesses don’t settle for second-best. They choose TwinCore when failure isn’t an option.
We’re not freelancers. We’re not body-leasers. We’re a senior engineering team with decades of hands-on experience delivering scalable, secure, and maintainable software. Whether you’re in logistics, finance, healthcare, or retail — we understand your industry, speak your language, and build tools that solve real problems.
Every developer is vetted for production-grade experience, not just portfolio fluff
We architect systems with long-term maintainability, performance, and integrations in mind
Our DevOps and QA pipelines follow modern CI/CD and security best practices
We don’t disappear after launch — we maintain, improve, and scale your systems as your business grows
We’ve worked with startups, SMEs, and enterprise clients across the US and EU. In every case, our code becomes infrastructure. If you’re looking for a team that writes clean code and gives a damn about your business outcomes — let’s talk.
Need Developers? Hire a Full Team or a Single Expert — Fast
Whether you're building a complex logistics platform or scaling your healthcare app, TwinCore gives you flexible hiring options tailored to your roadmap.
Looking for a dedicated squad to own delivery from start to finish? Our Team-as-a-Service model gives you access to vetted developers, architects, testers, and project leads — all under one roof and fully aligned with your business goals.
Need help shaping the architecture or roadmap? Our CTO-as-a-Service offering gives you access to senior-level strategic thinking without a full-time hire.
Want more options? Explore our Outstaffing Services to find the right fit for your project.
Hire Individual Developers On-Demand
Sometimes you just need that one expert to move faster. We’ve got you covered with pre-vetted specialists ready to integrate into your team:
Get on-demand access to top engineers — ready to plug into your team or build standalone features. Every developer at TwinCore is vetted, experienced, and battle-tested across complex enterprise systems.
Looking to scale your backend with performance-driven architecture? Our senior .NET developers bring years of enterprise experience with APIs, Azure, microservices, and high-load platforms.
From lightning-fast SPAs to dynamic dashboards, our React developers know how to ship clean, scalable interfaces — all with modern tooling and best-in-class frontend practices.
Angular is all about structure — and our engineers bring exactly that. Perfect for enterprise-grade apps, internal tools, and complex workflows with real-time data.
Need a .NET-native frontend without leaving the Microsoft stack? Blazor developers from TwinCore can help you build rich interactive UIs with C# — no JavaScript required.
Custom Development That Goes Beyond the Basics
Modern businesses don’t run on isolated tools — they depend on smooth data flow, responsive systems, and apps that evolve with operations. At TwinCore, we don’t just build features — we engineer the connective tissue of your business. From backend integrations to real-time mobile apps and connected IoT ecosystems, our software fills the gaps that off-the-shelf tools leave behind:
Seamlessly connect your systems with third-party platforms, internal tools, and cloud infrastructure. We build robust, secure APIs that become the glue of your digital operations.
Whether you need a customer portal, internal admin system, or full-fledged SaaS product — our web apps are fast, secure, and built to grow with your business.
Power smart devices with reliable software. We design secure, scalable IoT ecosystems — from sensors to cloud to analytics.
Meet our .NET developers: passionate enthusiasts
10+ projects
Igor P
Lead .NET developer
Availability
full time, part time, hourly
Experience
10+ years
.NET
Net.Core
Nopcommerce
Kentico
Azure
Blazor
+ other
Experienced yet open-minded .NET developer who meticulously writes every string of code. If you need fast, creative, but working solutions, there’s no better candidate than Igor!
As a self-motivated team player committed to continuous professional growth and learning new technologies, this candidate confident in his ability to contribute effectively to your organization. He forward to the opportunity to bring his skills and experience to your team.
Meet Alex, a seasoned .NET developer who crafts each line of code with precision and an open mind. If you're seeking swift, innovative, and effective solutions, Alex is the ideal candidate for your team.
Experienced yet open-minded .NET developer who meticulously writes every string of code. Embrace the opportunity to enhance your team's expertise by hiring him today.
With a proven track record in .NET development and proficiency in modern front-end frameworks, this candidate is well-equipped to contribute to your team's success. Don't miss the opportunity to bring such talent on board—consider hiring him today.
This candidate is well-prepared to enhance your team's capabilities. He is ready to drive your projects forward. Seize the opportunity to bring this skilled professional on board today.
This candidate is well-prepared to drive your projects forward. Seize the chance to add this skilled professional to your team by extending an offer today.
With the skills and mindset to move your projects ahead, this candidate is prepared to make an immediate impact. Now is the perfect time to add him to your team.
This professional is fully equipped to strengthen your team’s potential. Ready to lead your projects toward success, he’s the talent you don’t want to miss.
That’s our main tech stack, but TwinCore is all about learning and innovating, so we can adopt any technology specially for your project. See list of integrations we provide.
Why choose a Chicago-based team for custom software development?
Working with a team familiar with the Chicago business landscape ensures faster alignment, clearer communication, and technology that fits local market dynamics. TwinCore blends global engineering with on-the-ground understanding of logistics, finance, and healthcare sectors in Illinois.
Does TwinCore offer onsite collaboration or hybrid project models in Chicago?
Yes. While most of our engineering is remote-first, we support hybrid engagement with onsite workshops, stakeholder interviews, and local team integration when needed. For Chicago-area companies, we can align on timezone, in-person sessions, and team availability.
Can you modernize legacy systems used by Chicago-based enterprises?
Absolutely. Whether you're running outdated warehouse software, legacy ERP, or monolithic web apps, we specialize in replatforming — moving to .NET Core, React, microservices, and cloud-native stacks — without disrupting business continuity.
How does TwinCore handle compliance and security for regulated industries in Illinois?
We follow industry-specific standards (HIPAA, PCI-DSS, SOC 2) and build with compliance in mind from day one. Our software architecture includes secure data handling, audit trails, and permission systems tailored to regulated sectors like healthcare and finance in the Midwest.
What if I only need a few developers, not a full development team?
You can hire individual specialists — like a Blazor Developer or a React Developer — or assemble a dedicated team via Team-as-a-Service. All options are available to businesses in Chicago and across the U.S.
How quickly can TwinCore start on a custom development project in Chicago?
Depending on scope, we can kick off discovery within 5–10 business days. Our flexible staffing model allows us to scale up quickly — whether you need a small MVP team or a long-term delivery squad integrated into your operations.
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10+ projectsIgor PLead .NET developerAvailabilityfull time, part time, hourlyExperience10+ years.NETNet.CoreNopcommerceKenticoAzureBlazor+ otherExperienced yet open-minded .NET developer who meticulously writes every string of code. If you need fast, creative, but working solutions, there’s no better candidate than Igor!
10+ projectsIgor GSystem ArchitectAvailabilityfull time, part time, hourlyExperience10+ years.NETNet.CoreNopcommerceKenticoAzureReactAngularBlazor+ otherAs a self-motivated team player committed to continuous professional growth and learning new technologies, this candidate confident in his ability to contribute effectively to your organization. He forward to the opportunity to bring his skills and experience to your team.
10 projectsAlex SFull stack .NET developerAvailabilityfull time, part time, hourlyExperience8+ years.NETNet.CoreNopcommerceAzureMS SQL+ otherMeet Alex, a seasoned .NET developer who crafts each line of code with precision and an open mind. If you're seeking swift, innovative, and effective solutions, Alex is the ideal candidate for your team.
10 projectsSlavikFull stack .NET developerAvailabilityfull time, part time, hourlyExperience8+ years.NETNet.CoreNopcommerceASP.NETAzure+ otherExperienced yet open-minded .NET developer who meticulously writes every string of code. Embrace the opportunity to enhance your team's expertise by hiring him today.
10 projectsPavelFull stack .NET developerAvailabilityfull time, part time, hourlyExperience6+ years.NETNet.CoreAngularReactBlazorAzure+ otherWith a proven track record in .NET development and proficiency in modern front-end frameworks, this candidate is well-equipped to contribute to your team's success. Don't miss the opportunity to bring such talent on board—consider hiring him today.
8 projectsBogdanFull stack .NET developerAvailabilityfull time, part time, hourlyExperience8+ years.NETNet.CoreAngularReactVueJSAzure+ otherThis candidate is well-prepared to enhance your team's capabilities. He is ready to drive your projects forward. Seize the opportunity to bring this skilled professional on board today.
8 projectsAlex StFull stack developerAvailabilityfull time, part time, hourlyExperience5+ years.NETNet.CoreNopcommerceKenticoAzureReact+ otherThis candidate is well-prepared to drive your projects forward. Seize the chance to add this skilled professional to your team by extending an offer today.
8 projectsMaksymFull stack developerAvailabilityfull time, part time, hourlyExperience4+ yearsASP.NETNopcommerceReactBlazorAzure+ otherWith the skills and mindset to move your projects ahead, this candidate is prepared to make an immediate impact. Now is the perfect time to add him to your team.
5 projectsKolyaFull stack developerAvailabilityfull time, part time, hourlyExperience3+ years.NETNet.CoreReactVueJSAzure+ otherThis professional is fully equipped to strengthen your team’s potential. Ready to lead your projects toward success, he’s the talent you don’t want to miss.
