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Senior Software Engineer - Platform Jobs

125 Job Offers

Senior Software Engineer – Enterprise Platform
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Join Pynea as a Senior Software Engineer in London. Design and build secure, scalable enterprise workflows using TypeScript, GraphQL, and PostgreSQL. Leverage your AWS/GCP expertise to develop high-concurrency systems and ensure reliability. This contract role requires a self-directed professiona...
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United Kingdom , London
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Not provided
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Salt
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Until further notice
Senior Software Engineer, Backend (Voice Platform)
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Join Cresta's Voice Platform team in Toronto as a Senior Backend Engineer. Design and scale distributed microservices in Go, powering real-time AI-driven voice infrastructure. Lead initiatives in SIP/WebRTC, multilingual pipelines, and cloud reliability. Enjoy comprehensive benefits, wellness sup...
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Canada , Toronto
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Not provided
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Cresta
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Until further notice
Senior Software Engineer – Research Platform
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Join Optiver's Research Platform team in Chicago as a Senior Software Engineer. Build and scale a high-performance compute & data platform using Python and Rust for global research. Lead large-scale projects in distributed systems and workflow orchestration. Enjoy top-tier compensation, benefits,...
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United States , Chicago
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200000.00 USD / Year
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Optiver
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Until further notice
Senior Software Engineer, Product Platform
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Join our Product Platform team in San Francisco as a Senior Software Engineer. You will lead initiatives to build scalable IAM and billing systems using Python/Django. We seek an expert with 6+ years' experience in high-scale systems and distributed architecture. This role offers equity, competit...
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United States , San Francisco
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190000.00 - 280000.00 USD / Year
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Sentry
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Until further notice
Senior Software Engineer, Streaming Platform
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Join Sentry's Streaming Platform team in San Francisco as a Senior Software Engineer. Design and build high-scale, low-latency infrastructure using Kafka and Python/Rust. You'll create a self-service platform for real-time data processing, requiring 5+ years in distributed systems and cloud envir...
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United States , San Francisco
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190000.00 - 280000.00 USD / Year
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Sentry
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Until further notice

About the Senior Software Engineer - Platform role

A Senior Software Engineer specializing in Platform Engineering is a pivotal technical role focused on designing, building, and maintaining the foundational infrastructure and services that support an organization’s software ecosystem. Unlike engineers who work on customer-facing features, platform engineers create the internal tools, frameworks, and systems that enable other development teams to ship code faster, more reliably, and at scale. These professionals are the architects of the digital backbone, ensuring that the underlying platform is robust, secure, and efficient.

The core responsibilities of a Senior Software Engineer in platform **jobs** involve architecting large-scale distributed systems, cloud-native microservices, and high-availability infrastructure. They own the entire lifecycle of backend services—from initial design and development to deployment, monitoring, and ongoing operation in production. A significant part of the role includes building multi-tenant platforms that can serve thousands of customers simultaneously across multiple cloud providers like AWS, GCP, or Azure. These engineers are responsible for container orchestration (using tools like Kubernetes), managing CI/CD pipelines, and optimizing system performance, reliability, and security. They also tackle complex challenges such as data streaming, event-driven architectures, and ensuring that services meet strict uptime guarantees (e.g., 99.99% availability).

Technical leadership is a hallmark of this profession. Senior engineers on the platform team mentor junior developers, conduct rigorous code reviews, and make critical architectural decisions that balance trade-offs between scalability, cost, and operability. They work cross-functionally with product managers, site reliability engineers, and security teams to define roadmaps and solve deeply technical problems, such as root cause analysis of production incidents or designing fault-tolerant systems. Proficiency in statically typed languages like Java, Go, C++, or Scala is typical, along with deep expertise in distributed systems principles, networking, and operating systems.

Typical requirements for these roles include a bachelor’s or master’s degree in computer science or a related field, combined with several years of hands-on experience building and operating backend systems at scale. A strong candidate will have a proven track record of leading technical projects, a customer-focused mindset, and the ability to dig deep into complex problems. As the bridge between raw infrastructure and application development, a Senior Software Engineer in Platform **jobs** is essential for any organization aiming to innovate rapidly while maintaining a stable, high-performance technological foundation. This career path offers the opportunity to shape the very tools and systems that define modern software delivery.