Top Software Engineer Jobs in Indianapolis, IN

Build and scale backend systems and APIs for Segment CDP, collaborate with product and design, identify performance bottlenecks, improve reliability, participate in on-call rotation, and drive architectural decisions balancing velocity and stability.

Build and own a framework-agnostic charting engine core and its React binding: rendering layers, real-time data plumbing, indicator math, drawing tools, performance (60fps) discipline, visual testing, architectural leadership, mentoring, and integrations across web and mobile.

Design, build, and operate full‑stack features and platforms for Horizon. Work across frontend, backend, infrastructure, data, and developer tooling; formulate solutions, ship production code, improve reliability and developer productivity, and expand AI/agent-assisted workflows. Collaborate with product, customers, and cross-functional teams, review code (including agent-generated), and improve internal tooling, observability, and deployment workflows.

Lead Unreal Engine console ports, optimize performance and rendering, debug GPU issues, build tools and best practices, mentor engineers, collaborate with cross-discipline teams to meet certification and launch targets.

Build and maintain cloud-native, service-based systems connecting users across Chess.com. Develop and ship code to Kubernetes, use AI tools (Cursor/Claude), perform code reviews, and design scalable software serving millions of users while building telemetry and dashboards.

Lead technical strategy and execution for enterprise software, design and build new systems, improve existing platforms, mentor engineers, collaborate with product and stakeholders, ensure quality/performance, share best practices, analyze costs, and support operational readiness including on-call production support.

Develop, maintain, and support COBOL applications on mainframe systems. Design, code, test, debug, and troubleshoot programs, collaborate with teams to gather requirements, ensure code quality, and document technical specifications and processes.

Design and implement cloud-based microservices for multiplayer game backends, author design documents, support live features/releases, collaborate with partners and designers, and contribute to a strong technical culture focused on player experience.

Senior full‑stack engineer responsible for designing, building, testing, and supporting scalable backend services and user-facing UIs for a healthcare data platform. Works across Agile teams on data ingestion/transformation, APIs, cloud infrastructure, containers, and CI/CD. Leads major initiatives, mentors team members, participates in on-call rotation, and ensures HIPAA/compliance and engineering best practices.

Provide hybrid technical support, QA, and light development for MultiValue database products. Troubleshoot production issues, perform root-cause analysis, participate in on-call rotations, write automation scripts (Python/Shell), read and debug C code, assist QA testing, author documentation, and help integrate AI tools into support workflows.