Browse 101 exciting jobs hiring in Senior Systems Software Engineer now. Check out companies hiring such as Bumble Inc., ServiceNow, AlphaSense in Santa Rosa, Little Rock, Sioux Falls.
Lead backend development for Bumble's Dating product by building scalable GCP-native services, driving projects end-to-end, and mentoring junior engineers.
Lead performance and scalability for Veza’s Access Graph platform as a Senior Staff Software Engineer and technical lead, driving benchmarks, observability, and cross-team architectural decisions.
AlphaSense is hiring a Senior Software Engineer to help design and deliver full‑stack, AI-enabled systems that power the company’s Expert Research products and scale to enterprise usage.
Lead the architecture and delivery of Crusoe's cloud and infrastructure management systems to enable highly available, secure, and scalable AI infrastructure.
Lead backend engineering for core product services—feeds, ranking, realtime, and financial systems—at a small, product-focused startup that values ownership and strong engineering judgment.
Honeycomb seeks a Senior Software Engineer II on the Scale team to architect and deliver scalable backend services and full-stack product features that power billing, access control, and usage APIs for customers.
Lead the Integrations engineering effort at Veza (part of ServiceNow) to design and deliver scalable, high-performance connectors and architecture that feed identity data into an AI-native access security platform.
CyberArk is seeking a Senior Software Engineer to drive development of Machine Identity Cloud features and CLM capabilities across backend services, data pipelines, and frontend applications.
Join Oculon as a Senior Software Engineer to design and build high-performance, low-latency infrastructure for mission-critical market intelligence and surveillance.
Lead architecture and implementation of Airbnb's company-wide reviews and reputation platform as a Senior Software Engineer on the Reputation team.
Senior Software Engineer needed to design and operate scalable, secure backend services and drive product-critical initiatives for a fast-moving platform company (remote in the US).
Lead integration architecture and delivery for a next-generation AI-driven SecOps platform, owning domains end-to-end and mentoring engineers to raise team impact.
Senior Full Stack Engineer to lead design and implementation of scalable prescription-processing systems that improve pharmacy automation and patient outcomes at Alto/FuzeRx (a Fuze Health company).
Senior Software Engineer to design and build backend microservices, APIs, and data pipelines for Nearmap's insurance applications within a fast-moving, collaborative engineering organization.
A senior backend engineer role focused on building scalable, secure production services and leading technical initiatives across APIs, performance, and reliability for a consumer-facing platform.
Experienced technical leader needed to own and scale critical distributed systems at Best Egg, driving architecture, delivery, and mentorship across teams.
Experienced software engineer needed to lead development and integration of autonomy and multi-agent systems for national-security applications in a hybrid work environment.
Gridware seeks a Senior Full-Stack Software Engineer to design and scale backend services and frontend applications that power its Active Grid Response platform for electrical grid monitoring.
Lead the design and delivery of enterprise-grade conversational AI solutions at Connectly, helping major Latin American retailers scale engagement through WhatsApp.
Kit seeks a product-minded Senior Software Engineer to ship full‑stack features powering recommendation and monetization products that help creators grow and earn.
Senior Software Engineer needed to design and build C#-based microservices and REST APIs at Emburse, contributing to a cloud-first platform that modernizes finance operations.
Lead backend engineering for a Dallas–Fort Worth remote team, building scalable .NET Core services and Azure infrastructure for cloud-native applications.
Senior Software Engineer needed to architect and deliver scalable, cloud-native systems for a leading media and entertainment company using modern tooling and best practices.
Jitterbit is hiring a Senior Software Engineer to architect and build scalable, cloud-native iPaaS and API Management capabilities using Java, Kubernetes, Kafka, and AWS.
Senior backend engineer needed to design and implement scalable APIs and services that support TRM’s blockchain analytics platform and product roadmap.
Experienced backend engineer wanted to design and deliver scalable cloud-native microservices at SoFi, working hybrid from Seattle with remote option within Washington.
At Wizard, help productionize LLM and ML capabilities by building scalable Python-based backend services and data pipelines that power AI-driven product features.
Airbnb is hiring a Software Engineer to build and maintain backend services that power Hosts' listing creation and management on a remote-eligible Listings Backend team.
Help build scalable full‑stack products and public APIs at TRM Labs, a Series C blockchain analytics company working to secure global financial systems.
Build and ship real-time, safety-focused software for a life-saving cardiac robotics platform while working hybrid from Santa Cruz.
Join Fandango's Platform Operations team as a Senior Software Engineer to design, build, and operate internal platform tooling and scalable backend services that improve developer productivity across multiple brands.
Stord is hiring a Senior Software Engineer to design and deliver scalable full‑stack TypeScript systems that power modern commerce and 3PL experiences.
Kira Learning is hiring a Senior Software Engineer (Backend, Infrastructure Focus) to own and scale core backend systems, improve developer tooling, and support production reliability for AI-powered educational products.
Cadence is hiring a Senior Software Engineer to design and build scalable backend services for its AI-powered remote patient monitoring platform.
Hinge Health is hiring a Senior Backend Software Engineer (Accounts) to architect and implement scalable Golang gRPC services powering secure member accounts and data integrations.
Lead the design and implementation of cloud-native, distributed healthcare services at GE HealthCare as a Principal Software Engineer focused on performance, security, and engineering excellence.
Senior Staff Software Engineer role to design and implement distributed microservices and real-time data processing pipelines for mission-focused defense programs at SciTec (U.S. citizenship and clearance eligibility required).
SciTec seeks a Senior Software Engineer to lead the design and implementation of scalable microservices and real-time data processing pipelines in support of DoD-focused remote sensing and analysis missions.
Waabi is hiring a versatile Senior/Staff Software Engineer to architect and build scalable, low-latency mapping infrastructure that powers its autonomous fleet.
Sentry seeks a Senior Software Engineer for its Event Analytics Platform to advance search and storage infrastructure, improve performance and reliability, and help scale event data into the petabyte range.
Sentry is hiring a Senior Software Engineer, Infrastructure to design and build scalable platform services and developer tooling that improve reliability and reduce operational burden across engineering teams.
Workiva is hiring a Senior Software Engineer to design and scale Java-based backend services on OpenSearch to power full-text and semantic search across its platform.
Visa seeks a Senior Software Engineer (Sr. Consultant) in Bellevue to architect and build high-performance, scalable payment platforms that serve customers globally.
CyberArk is hiring a Senior Back End Platform Engineer to build scalable backend services and integrations that secure machine identities across high-throughput, multi-tenant cloud environments.
Optro is looking for a Senior Software Engineer II (Platform UI) to lead architecture and build scalable end-to-end UI solutions for a high-growth SaaS platform.
Thomson Reuters - Noetica is hiring a backend-focused Senior Full Stack Software Engineer to build scalable APIs, data processing pipelines, and integrations that power document analysis at scale.
Quizlet is hiring a Senior Software Engineer for the Community team to build scalable, user-facing community features that help learners and educators connect and engage.
Zoox is seeking a Senior Software Engineer to architect and deliver scalable enterprise systems and integrations that support manufacturing, operations, and corporate functions.
Scale is hiring a Senior Software Engineer to lead development of scalable backend and agentic capabilities that ingest and process federal datasets and support decision-making in contested environments.
Lead the design and delivery of scalable cloud-native software at GE HealthCare as a Senior Software Engineer focused on user experiences, APIs, and distributed systems.