Top Software Engineer Jobs in Peoria, IL

The Senior Software Developer will design and develop web and mobile applications, collaborate with scientists, implement APIs, and mentor developers.

Lead design and implementation of scalable backend systems that ingest, process, and serve high-volume health data. Own projects end-to-end, drive integrations with third-party APIs, improve data reliability and observability, mentor engineers, and partner with product, clinical, and data teams to deliver clinically meaningful insights.

The Senior Software Engineer will work on full-stack deliverables, manage support tickets, and enhance the tech stack for improved efficiency, focusing on analytics and automation in OOH advertising.

As a Senior Software Engineer, you will lead your team in delivering features according to specifications, ensuring scalable technical decisions, and mentoring team members.

Design and evolve systems for Motion's infrastructure, focusing on reliable and secure operations across APIs, Linux systems, and cloud environments with a focus on hands-on coding and engineering judgment.

Design and implement scalable frontend solutions using JavaScript/TypeScript and React. Drive architecture discussions, ship features with minimal guidance, maintain code quality and styling standards, collaborate across agile teams, ensure performance and scalability, and manage end-to-end feature lifecycles in a fast-moving environment.

As a Senior Staff Engineer, you will lead technical vision and architectural direction for Payments Compliance, ensuring scalable and cohesive compliance systems while partnering with cross-functional teams to navigate regulatory requirements.

The Senior Backend Engineer will design and build backend systems for a multi-cloud platform, ensuring performance, scalability, and high quality while collaborating with various teams and stakeholders.

Design, develop, and maintain backend services for the Leap quantum-classical hybrid cloud platform. Collaborate with product owners and architects across the SDLC to deliver features, troubleshoot and tune production systems, write clean maintainable code, participate in code reviews and on-call rotation, and mentor junior engineers to improve engineering practices and platform scalability.

Perform systems and software engineering tasks including analysis, design, development, testing, integration, debugging, and documentation. Support API-driven, low-code/no-code BPMN-based automation platforms (Appian, Salesforce, Nintex) with SQL Server and .NET, collaborate with Agile teams, and maintain secure remote work practices for CUI-bearing government projects.

Design and implement AI-powered educational software, focusing on generative AI systems, mentor peers, and ensure scalable, secure architecture.

Implement full stack changes on Ameelio Connect, support team with code reviews, maintain code quality, and investigate customer issues.

As a Senior DevOps Engineer at Scribe, you will design and optimize AWS cloud infrastructure, manage CI/CD pipelines, and support product development while ensuring reliability and performance of services.

Develop and maintain language frontends for the Joern platform for automated software vulnerability analysis, collaborating with a global team.

Design and own AI-agent-driven test workflows and the automated verification framework. Build test context, select models and tooling, validate AI-generated code and tests, operate test automation across UI/API/mobile/data, ensure security and compliance, mentor teams, and continuously improve agent orchestration and observability.

Lead architecture and development of high-performance, scalable backend systems for Yahoo Mail using Java and C++. Set technical strategy, establish architectural standards, validate AI-generated code, mentor senior engineers, collaborate cross-functionally, and ensure reliability through automated logging, telemetry, and debugging workflows.

Extend and harden Ocient's native geospatial engine: implement and optimize 120+ spatial functions, ensure spherical/geodetic numerical correctness, improve spatial indexing and query performance at trillion-row scale, deepen spatiotemporal operators (trajectory/interpolation), integrate geospatial features with the analytical engine, and produce design docs, tests, and benchmarks.

Lead technical strategy and architecture across multiple engineering teams, drive platform and developer productivity, promote engineering best practices (quality, reliability, security, observability), advance AI-enabled engineering, mentor senior engineers, and contribute hands-on to complex distributed systems, integrations, and cloud-native solutions to improve organizational engineering outcomes.

Lead design, configuration, delivery, and support of Workday Core and Advanced Compensation. Partner with product teams, provide technical leadership, coach product engineers, manage releases, testing, and production support, and drive continuous improvement for compensation processes and user experience.

Lead design and delivery of cloud-native, distributed full‑stack systems; own end-to-end projects and incident response; mentor engineers; write ADRs and RFCs; optimize performance and apply secure SDLC and AI‑augmented development practices.

Design and deliver complex, scalable SaaS features end-to-end using AI-assisted development tools. Own specifications, implement and review AI-generated and human code, build REST APIs, maintain UI and backend services, drive AI-assisted workflows, and mentor cohort engineers on tooling, spec writing, and best practices.

Lead technical design and delivery of complex, scalable SaaS features using AI-assisted development. Own specification quality, implement and review AI-generated code, design REST APIs, mentor engineers, and drive cohort-wide standards for architecture, testing, and DevOps practices.

Design, implement, and optimize high-performance backend services and APIs in Go. Architect scalable, fault-tolerant distributed systems using Kafka for large-scale data processing and streaming. Collaborate with product, frontend, and data teams; monitor and profile systems for performance and reliability; drive engineering best practices; and mentor junior engineers.

Develop, test, and maintain production-quality C++ software implementing Government Reference Architectures for mission-critical defense systems. Translate MBSE (SysML/Cameo) artifacts into interoperable components, implement APIs/ICDs, integrate distributed messaging frameworks (ActiveMQ/DDS/ZeroMQ), and maintain CI/CD, automated testing, containerized builds, and static analysis. Collaborate with systems engineers, architects, autonomy engineers, and government stakeholders to validate interoperability and performance.

Develop and integrate open-architecture, standards-based software for defense and aerospace systems. Implement and map interoperability standards (SOSA, FACE, AMS GRA, UCI), work with serialization formats (OMG IDL, protobuf, XSD, XMI), perform structural and semantic gap analysis, support interface/data model transformations, collaborate with multidisciplinary teams, produce documentation and interface specifications, and participate in architecture and design reviews.