Top Software Engineer Jobs in Peoria, IL

Design, develop, and operate cloud-based services for large-scale data management. Build full-stack features using .NET/C#, React, JavaScript, and SQL; maintain integrations; execute production migrations; apply Azure cloud-native architecture; manage CI/CD pipelines; monitor system health; remediate vulnerabilities; participate in on-call incident response; and collaborate cross-functionally on sprint commitments.

Build high-quality, scalable, maintainable software with a small engineering team. Coach client teams on modern development practices, use test-driven development, and continuously develop technical skills through training and learning opportunities. The role is designed for a software engineer with React and Node.js expertise and at least three years of experience, with remote work flexibility.

Software Engineering Interns will build and maintain a B2B CRM across the full stack, including Next.js and Tailwind CSS frontend interfaces, Node.js and AWS backend services, and MongoDB databases. Responsibilities include developing scalable APIs, optimizing performance, writing secure maintainable code, collaborating with engineering, product, and design teams, and contributing to architecture decisions. This is a remote-first, full-time 12-month internship with potential conversion to a full-time engineering role.

Design and implement infrastructure services for a GPU-as-a-Service platform. Build REST and gRPC APIs, bare-metal provisioning workflows, Kubernetes cluster lifecycle services, reconciliation loops, reliability mechanisms, and interfaces for hardware and cluster health. The role requires Go, Kubernetes controller patterns, bare-metal provisioning, asynchronous systems, and experience with infrastructure technologies such as Metal3, Cluster API, and Temporal.

Design, develop, deploy, and maintain cloud-native AWS applications using Node.js, React.js, and JavaScript/TypeScript. Build infrastructure as code with Terraform or AWS CDK, create CI/CD pipelines, troubleshoot Linux environments, and support secure cloud operations. Collaborate with UI/UX, cloud engineering, architecture, and DevOps teams while contributing to compliance, hardening, architectural decisions, and on-call operations.

Build and own the technical roadmap: design AI-first interfaces and APIs, architect scalable ETL pipelines, develop data models for ML features, ship autonomous B2B workflows (PO generation, vendor sync, schedule optimizations), and establish engineering standards, CI/CD, and mentoring.

Design, develop, and modernize scalable front-end UI applications using Angular and TypeScript. Lead large UI projects, enforce coding standards, write technical specifications, optimize performance, mentor engineers, collaborate full-stack, and support CI/CD and Agile practices to deliver user-centric features.

Lead architecture, design, and delivery of PET product features; write production full‑stack code; champion testing, observability, CI/CD and operational readiness; mentor engineers and collaborate with product to shape technical roadmap.

Build and own end-to-end frontend experiences for Coinbase card products across web and mobile. Ship high-scale consumer features, improve payment flow performance and SLOs, reduce latency and CX contacts, mentor engineers, and collaborate with product, design, and backend teams to deliver reliable, user-focused card functionality.

As a Staff Software Engineer, you will enhance platform engineering by improving deployment strategies and developer experiences, establishing reliable systems and mentorship across teams.

Design, develop, and validate functionally safe software for robotic perception systems. Build safety-critical architecture across Linux and real-time operating systems, create testing and validation frameworks for edge cases, collaborate with machine learning, hardware, and core software teams, and mentor junior engineers on safety-critical coding practices.

Design and build web applications supporting member enrollment, including eligibility verification, benefit matching, signup, and activation. Write tested, maintainable code; design scalable APIs; participate in architecture and technical decisions; use AI coding agents throughout development; collaborate with Product and Marketing; monitor system reliability; and participate in on-call support for the enrollment pipeline.

Build scalable distributed systems for Rula’s Marketplace Health Engine, improving provider utilization, marketplace efficiency, and patient access. Partner with Engineering, Product, Data, and Operations; lead technical strategy across teams; design backend services, APIs, and data-intensive systems; drive projects from discovery through post-launch support; solve complex marketplace problems; mentor engineers; and remain hands-on in software development.

As a Senior Frontend Software Engineer, you'll lead the development of major features using React and TypeScript, ensuring performance and integration with backend systems. You'll also manage releases, improve team efficiency, and contribute to a customer-centric product experience.

Design, develop, test, and maintain Java backend services, APIs, microservices, and distributed systems supporting enterprise claims and payment solutions. Collaborate with product and business stakeholders, contribute to architecture, build CI/CD pipelines, operate containerized applications, and support production services through monitoring and troubleshooting. Apply clean code, TDD, automated testing, security, and Agile engineering practices while helping guide the platform’s technical direction.

Lead the maintenance, modernization, and evolution of mission-critical enterprise payment applications. Design, develop, test, and support backend services, REST APIs, microservices, and distributed systems using C# and .NET. Contribute to architecture, CI/CD, observability, security, scalability, and production reliability. Collaborate with product, engineering, operations, and business stakeholders in an Agile environment while applying clean code, TDD, automated testing, and modern DevOps practices.

Lead the design, development, modernization, and governance of enterprise customer-data applications and integrations. Manage operational data stores, system dependencies, IAM integrations, security, compliance, DevOps practices, deployments, and production support. Define target-state architectures, guide technology modernization, oversee vendor teams, troubleshoot critical issues, and communicate technical strategies across business and technology teams while mentoring junior engineers.

Design, develop, and maintain full-stack applications and services to support operations for genetic lab tests. Collaborate with stakeholders to define requirements, build sustainable applications, improve development processes, handle PHI under HIPAA training, and pass background checks.

Develop and maintain multi-tier applications for a payment processing platform using C#, .NET, SQL Server, Azure, and related Microsoft technologies. Translate customer and product requirements into solutions, troubleshoot issues, recommend architectural and process improvements, and serve as a platform subject matter expert. Lead or support Scrum teams, mentor junior engineers, collaborate with global stakeholders, act as a customer point of contact, and uphold Agile, QA, SOLID, and CI/CD practices.

Architect and develop the frontend and full-stack features for Legion, a real-time Command and Control platform managing large autonomous aircraft swarms. Responsibilities include distributed collaborative infrastructure, telemetry and sensor-data visualization, scheduling and data-link interfaces, deployment, CI/CD, QA, and DevSecOps. The role requires building high-performance web applications with React or a comparable framework, potentially incorporating geospatial interfaces, video streaming, and WebGL/OpenGL.

Design, develop, test, deploy, and support web and software solutions; estimate and document work; troubleshoot and monitor systems; implement CI/CD and DevOps practices; collaborate with stakeholders; specialize in web UI/UX, CMS platforms, modern frameworks, APIs, and scalable architectures.

Develop and maintain features for a podcast subscription platform using PHP and Laravel. Scale the application, support user and administrator experiences, build website embeds and third-party integrations, and help apply AI tools to accelerate development and improve code quality and security. Collaborate within a small, Agile-oriented remote team while evaluating technologies and influencing the evolving product stack.

Build and ship full-stack features across a TypeScript/React frontend and TypeScript/Python backend. Own integrations and backend services (LoanPro, HubSpot), add tests and monitoring, resolve production issues, participate in code review and planning, and use AI tooling to automate and increase development velocity.

Designs, builds, scales, and operates distributed CI/CD services supporting millions of builds, tests, and releases. Develops code for Azure-based infrastructure spanning virtual machines, containers, and custom lab environments. Responsibilities include requirements analysis, architecture and design documentation, estimation, debugging, optimization, operational playbooks, on-call incident response, monitoring, reliability improvements, and mentoring engineers.

Design, build, test, and maintain production services and microservices with security and compliance in mind. Deliver production-ready code, participate in code reviews, own operational support and incident response, improve monitoring and CI/CD, document technical decisions, and collaborate cross-functionally in a distributed team.