Top Software Engineer Jobs in Peoria, IL

Lead frontend feature releases and own user experience, performance, testing, and production health for a React and TypeScript dental practice management platform. Collaborate with backend engineers using Java Spring Boot, develop AI-powered interfaces, integrate AI tools such as Claude, participate in code reviews, improve team efficiency, and estimate development work for timely delivery.

Own the frontend technical roadmap and architecture for Archy’s dental practice management SaaS. Lead major feature releases, optimize React and TypeScript performance, integrate AI-powered interfaces, and oversee frontend-backend integration with Java Spring Boot. Establish testing, stability, monitoring, and production release practices while leading code reviews, planning development efforts, and improving team efficiency.

Develop and maintain backend systems and full-stack software using PHP and Node.js, including containerized microservices on AWS Kubernetes. Responsibilities include system design, coding, testing, code reviews, troubleshooting, deployments, production support, and technical guidance. The engineer collaborates with product owners, project managers, DevOps, QA, and data engineering teams throughout the software development lifecycle, emphasizing reliability, performance, maintainability, and automated testing.

Develop scalable, cloud-native APIs and a greenfield system replacing a legacy platform. Responsibilities include application development, frontend work with JavaScript frameworks, performance tuning, service API development, automated testing, production support, and end-to-end ownership of reliability and operational health. The role requires collaboration with product and platform teams, use of Azure DevOps and agile practices, and applying AI development tools to improve engineering productivity and customer outcomes.

Build, ship, and maintain scalable iOS features used by millions of users. Responsibilities include writing Swift code with modern iOS frameworks, designing reusable components, managing asynchronous workflows, improving performance and reliability, debugging production issues, contributing to architecture and testing strategies, participating in code reviews, and collaborating with product, design, and engineering teams through release and iteration.

Develop and deliver native iOS features for MyFitnessPal’s AI-powered food logging experience. Responsibilities include implementing user interfaces, optimizing performance and network communications, building tested and secure solutions, collaborating with product and design teams, researching technical approaches, mentoring developers, and contributing to deployment and engineering best practices.

Designs, develops, configures, tests, documents, and supports Guidewire ClaimCenter and related applications, integrations, tools, and systems. Responsibilities include production support, incident and problem management, troubleshooting, root cause analysis, release management, technical design, automated functional and performance testing, code reviews, mentoring junior developers, vendor liaison work, and collaboration with architecture teams. The role requires independent judgment, leadership, SDLC expertise, and strong Java, .NET, JavaScript, SQL, Oracle, and testing capabilities.

Leads the design, configuration, development, integration, testing, deployment, and production support of Guidewire InsuranceSuite applications for Property and Casualty insurance. Translates business requirements into secure, scalable solutions; directs technical design and code reviews; supports integrations, incident resolution, root cause analysis, releases, and continuous improvement. Mentors engineers, maintains technical documentation, and promotes Agile, DevOps, quality, security, and enterprise architecture standards.

Build and maintain Plane’s cross-platform Flutter mobile app, owning features from interface through data and native integrations. Work on widgets, notifications, webview-based editing, caching, persistence, and compatibility across multiple server versions. Collaborate with backend, design, product, and QA teams while writing tests and maintaining consistent architecture. The role requires production Flutter experience, clean architecture, Bloc-based state management, dependency injection, unit and widget testing, and familiarity with native Android and iOS development.

Design, build, and maintain APIs, services, and systems for Telnyx’s telephony platform. Develop large-scale telephony features, improve engineering standards and tooling, and optimize latency, scalability, and performance. The role requires professional Elixir experience, knowledge of microservice architectures, and understanding of concurrent and distributed programming. Familiarity with SIP, VoIP, and related protocols, plus cloud-native and observability tools, is advantageous.

Build and maintain C#/.NET backend services, APIs, web applications, ERP and billing features, and financial integrations. Modernize legacy .NET Framework applications onto Azure, optimize SQL Server and Azure SQL data access, create automated tests, support CI/CD, instrument production systems, and implement secure authentication and configuration. Troubleshoot application, database, and hosting issues while collaborating with DevOps, architects, product leaders, and stakeholders.

Build and own studio-wide systems that improve software quality, testing, performance, developer velocity, and infrastructure reliability. Responsibilities include functional test automation, load and chaos testing, regression analysis, device compatibility labs, build and GPU clusters, CI infrastructure, disaster recovery exercises, developer tooling, quality metrics, and technical leadership across distributed engineering teams.

Own and develop a TypeScript monorepo spanning Next.js, Expo, and Cloudflare Worker applications. Build secure PostgreSQL and Prisma systems, webhook handlers, background jobs, authentication, encrypted financial data workflows, and AI-powered financial features. Responsibilities include production ownership, incident response, code review, and ensuring reliability, security, idempotency, and data isolation across web and mobile products.

Design, develop, test, troubleshoot, and support high-volume software applications in an Agile environment. Collaborate with architects, product partners, customers, and engineers throughout the software development lifecycle. Participate in design and code reviews, automated testing, production monitoring, security, observability, and continuous improvement. Use approved AI-assisted development tools responsibly across coding, testing, debugging, analysis, and documentation while ensuring software quality, security, performance, and maintainability.

A 12-week software engineering internship involving feature development, software testing, and continuous production deployment. Interns own projects end-to-end, collaborate across engineering and business teams, and receive mentorship while gaining experience with product development and reliable, real-time software systems.

Build and support reliable dashboards for AI infrastructure and financial models, including TCO, tokenomics, and compute capital models. Responsibilities include implementing features, loading model releases, validating data, developing accuracy checks, collaborating with analysts, creating charts and explanations, answering client questions, and contributing to research newsletters. The role requires strong Python or TypeScript skills, software engineering experience, numerical accuracy, and effective use of AI coding agents.

The Software Engineer will support the Arkalytics platform by troubleshooting production issues, developing software enhancements and automation, investigating AWS application, database, and infrastructure problems, and performing root cause analysis. Responsibilities include improving monitoring, logging, alerting, reliability, and operational tooling; providing Tier 2 and Tier 3 support; participating in on-call rotations, code reviews, documentation, and cross-functional customer issue resolution.

Build and maintain core products and collaborate on larger consulting projects using TypeScript, Python, FastAPI, Next.js, GCP, and generative AI frameworks. The role involves hands-on software development within a rapidly growing, remote team serving Saudi Arabia and the GCC.

Design, develop, test, and maintain scalable software applications and systems. Write high-quality code, solve complex technical problems, collaborate with product and engineering teams, participate in code reviews and debugging, contribute to system architecture, and improve engineering processes. The role requires strong software fundamentals, production-scale experience, and familiarity with Databricks, distributed systems, and cloud infrastructure.

Own and expand a Three.js-based in-browser solar configurator: implement and optimize 3D geometry tools and workflows, build product-facing frontend features, collaborate with backend and computational teams, translate solar physics into usable design tools, define frontend/3D architecture, and ensure performant, stable UX across edge cases.

Own and expand a Three.js/R3F in-browser solar configurator: build and optimize 3D geometry tools and UX, collaborate with backend and simulation teams, ensure performant real-time rendering, and deliver frontend product features across the Aether platform.

Build and ship production features across backend services, APIs, frontend systems, AI-native healthcare infrastructure, EMR, and billing platforms. Collaborate with engineers, product managers, and designers; write clean, tested code; participate in code reviews; and own projects from concept through production.

Build and ship end-to-end product features across an author analytics dashboard, marketing site, free tools, billing, email, and AI-assisted functionality. Design data models and APIs, integrate third-party services, develop production LLM features, and maintain testing, monitoring, performance, and observability. The role includes code review, technical documentation, independent product decisions, and close collaboration with the founder in a remote-first environment.

Leads development of resilient, scalable features across Toast’s enterprise Sports and Entertainment platform, including backend, frontend, and POS systems. Responsibilities include designing, deploying, testing, monitoring, and maintaining production services; leading complex technical projects; collaborating with Product, Design, Customer Success, Sales, and other teams; mentoring engineers; and using AI tools to improve development productivity.

Own and deliver highly available, low-latency backend identity systems supporting consumer onboarding, authentication, and verification. Lead quarterly team goals, guide engineers through ambiguous problems, collaborate with product and design partners, monitor system reliability, improve engineering standards, support on-call operations, and mentor team members. The role requires designing and launching distributed systems at scale using Python or Kotlin, AWS, MySQL, and Kubernetes.