Top Software Engineer Jobs in Peoria, IL

Seeking experienced Senior Backend Engineers to join a collaborative team, focusing on backend systems, shared services, and product features aimed at improving user experiences and monetization.

Design and implement DataPath on silicon. Write efficient, modular code with thorough testing. Requires experience in packet forwarding and virtualized Linux environments.

The Senior Full Stack Software Engineer will oversee technical development in a B2B SaaS healthcare environment, mentor junior engineers, and lead product features.

The Software Engineer will develop customer-facing integrations, build APIs, enhance security, and improve system reliability while collaborating with multiple teams.

Design, develop, and maintain backend services and APIs for Speechify, focusing on performance, scalability, and user experience while collaborating with cross-functional teams.

The Senior Web Software Engineer will build and maintain web components, own features from inception to production, implement designs, partner with teams, and impact product evolution.

As a Senior Backend Software Engineer at Step, you'll own features from inception to production, improve Kotlin services, ensure code quality, and work collaboratively in a small team.

The Senior Mobile Software Engineer will develop user-facing features for a cross-platform app, ensuring code quality and functionality throughout the entire lifecycle of features.

Lead the bioinformatics pipeline team, setting technical strategy and architecture. Ensure engineering best practices, mentor staff, and oversee DevOps strategy for reliable software delivery in a regulated environment.

As a System Software Engineer, you will enhance GCC/LLVM toolchains for Ubuntu, ensuring modern C/C++ features and improving developer experiences through collaboration and high-quality coding.

Design, build, and operate highly available, high-throughput backend services for Twilio SendGrid. Modernize Go-based microservices, manage dual-cloud AWS/Azure infrastructure with Terraform, improve observability and reliability, mentor engineers, and balance feature delivery with platform refactoring.

Design, implement, and ship end-to-end features across backend services and a React web client for a multi-tenant ERP. Own schema design, migrations respecting row-level security, integrations with platform services, and deliver high-quality, performant code with CI/CD, tests, and code review. Leverage AI coding assistants responsibly and collaborate cross-functionally to evolve shared platform libraries and developer tooling.

The role focuses on optimizing coding practices and collaboration within the engineering team, improving internal tooling, and communicating between teams and leadership.

The Senior Svelte Software Engineer will develop high-quality, scalable Svelte web components, collaborate on design systems, and ensure component reliability.

The Senior Software Engineer will lead teams to build secure, high-scale cloud applications, ensuring system reliability and delivering software solutions.

Build and improve scalable, secure, performant web applications and data pipelines for healthcare challenges. Develop technical roadmaps with engineering, product, and business stakeholders using Agile processes. Mentor junior engineers, conduct thorough code reviews, and promote observability, testing, alerting, metrics, and frequent incremental releases. Work with large-scale data processing, databases, APIs, cloud technologies, containerization, orchestration, and CI/CD systems.

Lead design, implementation, and maintenance of scalable backend systems and services. Improve performance, reliability, and deployments; operate production systems (incident response rotation); conduct code reviews; mentor engineers; collaborate with product, sales, and customers.

Designs, develops, and maintains scalable QA automation frameworks using C#, Selenium, RestSharp, Appium, SQL, and Azure. Leads CI/CD automation infrastructure, test strategy, code reviews, failure investigation, quality metrics, and process improvements. Collaborates with development, product, and business teams throughout the software lifecycle, mentors QA automation engineers, supports customers and business analysts, identifies test coverage gaps, and provides technical guidance on complex software quality issues.

Build and maintain data integration interfaces and ingestion pipelines between EHR systems and the Bayesian platform. Collaborate with client technical teams, implement automated integration tests, deploy and support go-lives, troubleshoot data correctness end-to-end, and develop tooling and automation (including LLM-driven) to scale integrations.

Designs and implements protocols and features for highly scalable distributed block storage, focusing on durability, availability, performance, reliability, and observability. Responsibilities include coding, optimization, debugging, design documentation, stakeholder collaboration, incident response, on-call operations, and mentoring engineers. The role requires expertise in C or C++, distributed systems, cloud backend development, multithreaded programming, and large-scale software delivery.

Leads design and development of complex commercial software for Documents and Customs services. Translates business requirements into technical architectures, builds scalable and secure applications, improves testing and CI/CD practices, troubleshoots production issues, and evaluates AI-assisted development tools. The role also mentors engineers, leads code reviews, drives engineering process improvements, collaborates across teams, and communicates technical strategies, tradeoffs, and recommendations to stakeholders and leadership.

Principal Software Engineer responsible for architecting and delivering scalable full-stack systems for documents and customs services. The role includes designing microservices and distributed architectures, developing frontend and backend components, integrating AI and automation, optimizing databases and APIs, managing cloud-native deployments, troubleshooting production systems, and guiding engineering teams. The engineer will collaborate with product, UX, data science, and engineering stakeholders while mentoring teams and driving technical standards, reliability, and innovation.

Design, build, and maintain backend services in TypeScript for millions of users; develop full‑stack features with React/React Native; participate in code reviews; provide technical leadership, mentorship, and architecture guidance; collaborate with PM and design; use monitoring/metrics and Agile practices to deliver scalable, user-focused products.

Build scalable full-stack applications integrating healthcare insights with browser-based and Windows EHR systems. Develop products using FHIR and HL7 interoperability standards, collaborate on technical roadmaps, and implement performant solutions. Mentor junior engineers, conduct code reviews, make technical decisions, and partner with engineering, product, and business stakeholders using Agile processes.

Serve as the technical anchor for HubSpot’s Breeze Assistant platform. Architect and ship scalable distributed and agentic AI systems using LLMs, RAG, vector databases, and tool-calling. Build platform primitives, customer-context integrations, dynamic artifacts, and multi-step workflows across HubSpot and third-party tools. Drive reliability, evaluation, observability, guardrails, privacy, and production readiness while mentoring engineers and partnering cross-functionally on product and platform strategy.