Top Senior Software Engineer Jobs in Indianapolis, IN

Design, build, and own backend services for prediction markets across market lifecycle: creation, trading, oracle resolution, settlement, and payouts. Build low-latency, high-throughput microservices and event-driven systems, drive reliability via SLOs and observability, lead incident response, set technical standards, and mentor engineers while partnering cross-functionally to deliver product and compliance-aligned roadmaps.

Serve as the technical IC leader for the Provider organization: set technical roadmap and engineering standards, design and review architectures, drive cross-team initiatives, mentor engineers, and deliver high-throughput, low-latency, cloud-based microservice systems for provider-focused products.

Build and scale full-stack systems to improve provider onboarding and supply; design distributed, maintainable services; lead high-priority projects; mentor engineers; integrate AI-assisted and LLM-based features; drive provider-facing product quality and reliability.

Build automated reliability and self-healing platform tooling to protect production at scale. Improve incident management, reduce alert noise, evolve observability (monitoring, SLOs, performance detection), and develop AI-driven operational automation. Partner with product teams to diagnose reliability gaps, drive incident prevention, and champion operational excellence and best practices across engineering.

Design and implement Kotlin backend services and end-to-end systems for Toast POS device management. Lead technical designs, estimations, performance optimization, cross-team collaboration, and software quality practices including modern testing and observability. Mentor peers and drive product roadmap alignment with product, hardware, and QA stakeholders.

Lead design and delivery of complex web and mobile product areas, build and maintain React/React Native applications, architect scalable systems and APIs, optimize databases and performance, drive engineering standards and test coverage, mentor engineers, and collaborate with leadership and stakeholders in a fully remote environment.

Senior .NET Software Engineer responsible for end-to-end software development using Microsoft technologies. Requires extensive experience in SDLC, design principles, technical documentation, web application development with .NET, Agile/SCRUM, Entity Framework, database design, and version control. Familiarity with project tools JIRA, TEMPO, Bitbucket, and Confluence preferred.

Design and build the control plane for Postgres clusters, ensure data protection, automate database operations, and collaborate with customers to enhance the platform.

As a Senior Full-Stack Engineer, design and build scalable UI systems, own features end-to-end, collaborate on API design, and ensure production quality.

As a Senior Frontend Software Engineer, you'll develop user-facing features using React and TypeScript, ensuring performance and cross-device compatibility while collaborating with teams to maintain a component library.

As a Senior Mobile Engineer, you will develop high-performance mobile features using React Native and TypeScript, collaborating closely with designers and engineers to enhance user experiences.

The Senior Software Engineer will develop high-performance software for executing open-source LLMs on custom hardware, focusing on optimizations and efficient libraries primarily in C++.

The Senior HPC Cluster Engineer will optimize GPU clusters, troubleshoot InfiniBand networks, integrate new hardware, enhance automation systems, and manage GPU devices in HPC environments.

Develop, test, and maintain a complex distributed processing application using Python and Java. Collaborate with product owners, data coaches, analysts, DBAs, and Agile teams to meet backend/frontend requirements. Work with distributed workloads (Spark/Hadoop), SQL/Snowflake, AWS, shell scripting, and job scheduling/process automation. Support delivery under Agile/SAFe practices and ensure alignment with program standards.

The Software Engineer will manage data collection, optimize cloud infrastructure for data ingestion, and collaborate with AI researchers to enhance datasets for model training.

The Senior Full Stack Software Engineer will design and develop software solutions, collaborate on product ideation, and improve tooling. They'll work autonomously to build an exceptional product in the fintech space.

As a Senior Full Stack Software Engineer, you will build and improve products, create user interfaces and APIs, and collaborate with various teams to enhance the customer experience.

Design, develop, implement, test, and support high-quality internal software and customer-facing products. Enhance existing products and design APIs that integrate systems. Ensure security measures and perform code testing and reviews.

The Senior Back-End Software Engineer will design and implement a serverless platform, work closely with the product team, and own entire projects, driving innovation in telehealth.

The role involves delivering solutions to technical problems, optimizing APIs, transforming requirements into tasks, mentoring, and participating in hiring.

The Senior Frontend Software Engineer will design, develop, and enhance frontend capabilities on the Graykey platform, ensuring quality code and collaboration with design and QA teams.

As a mid-level Software Engineer, you'll deliver Python-based platform features, collaborate with teams, and maintain system reliability and scalability.

The Power Systems Software Engineer will develop high-fidelity power flow models, validate them against customer data, and enhance the architecture for solver performance in grid simulations.

Build and maintain scalable, cloud-native full‑stack features and services. Collaborate with Product and Design to prototype, deliver, and document solutions. Work across backend and frontend, apply modern engineering practices, mentor teammates, and own product domains to improve transit operations.

Design, build, and maintain customer-facing features across backend and frontend. Write high-quality code, use AI tools to improve workflow, scope projects, troubleshoot production, mentor peers, maintain docs, and participate in on-call rotation.