Last updated: 2025-10-23
236 Backend Software Engineering jobs in Seattle.
CertiK
CertiK’s security offerings include security consulting, security reviews, security auditing of smart contracts and blockchains, verification of smart contract…
Seattle
- Skills: Solidity, Ethereum Virtual Machine (EVM), cybersecurity, security auditing, smart contracts, penetration testing, security consulting, threat modeling, hacking, blockchain security
- Level: mid
- Type: full_time
Hive
Hive is the leading provider of cloud-based AI solutions to understand, search, and generate content, and is trusted by hundreds of the world's largest and mos…
Seattle
- Skills: cloud-based AI solutions, pre-trained AI models, API requests, software applications, core services, web-based APIs, clean code, maintainable code, product development, scalability
- Level: mid
- Type: full_time
Palantir
Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empo…
Seattle
- Skills: Kubernetes, production infrastructure, cloud hyperscalers, K8s clusters, tooling, CNCF components, scale, stability, security, automation
- Level: mid
- Type: full_time
Zoox
Seattle
- Skills: software engineer, High-Performance Computing, infrastructure, tools, services, machine learning, distributed system design, algorithmic job scheduling, cloud scaling, computational needs
- Level: mid
- Type: full_time
Spice AI
Spice AI is focused on building data-driven AI applications and agents, simplifying the complexity of development by combining code, data, and AI into decision…
Seattle
- Skills: AI applications, data-driven, machine learning, SQL interface, cloud platform, high-performance, feedback loops, Rust, decision-making systems, software development
- Level: mid
- Type: full_time
Moloco
Moloco is a machine learning company empowering organizations of all sizes to grow and unlock the full value of their unique first-party data, elevating the tr…
Seattle
- Skills: machine learning, backend development, infrastructure, cloud platform, AWS, GCP, Go, big data, distributed systems, data processing
- Level: mid
- Type: full_time
Axon
At Axon, we’re on a mission to Protect Life. We’re explorers, pursuing society’s most critical safety and justice issues with our ecosystem of devices and clou…
Seattle
- Skills: backend software engineering, collaboration, system design, technical direction, mentoring, cloud systems, high availability, scalability, database experience, open source technologies
- Level: senior
- Type: full_time
Spice AI
Spice AI is focused on building data-driven AI applications and agents, making it easier for developers to combine code, data, and AI. They created the Spice.a…
Seattle
- Skills: Rust, database development, AI applications, open source, distributed systems, machine learning, high-performance, SQL, feedback loops, data-driven
- Level: mid
- Type: full_time
Union.ai
At Union, we are solving one of the hardest challenges in AI infrastructure today: enabling high-velocity iteration while maintaining seamless production-readi…
Bellevue
- Skills: AI, ML, Kubernetes, Cloud providers, Backend development, Infrastructure, APIs, Distribution solutions, DevOps, CI/CD
- Level: mid
- Type: full_time
Outreach
Outreach is an AI Sales Execution Platform that helps revenue teams accelerate decision making and improve efficiency across the customer journey.
Seattle
- Skills: databases, queues, MySQL, PostgreSQL, DynamoDB, Redis, Kafka, RabbitMQ, automation, scaling
- Level: mid
- Type: full_time
SpaceX
SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today Spa…
Redmond
- Skills: full-stack software engineering, JavaScript, Python, C#, .NET, data pipelines, Angular, React, PostgreSQL, Docker
- Level: mid
- Type: full_time
Palantir Technologies
Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empo…
Seattle
- Skills: Kubernetes, network infrastructure, APIs, cloud networking, observability, scalability, security, firewall rules, CNCF tools, Go
- Level: mid
- Type: full_time
SingleStore
SingleStore delivers the cloud-native database with the speed and scale to power the world’s data-intensive applications. With a distributed SQL database that …
Seattle
- Skills: real-time technology, LLM, vector index, SQL queries, SIMD, LLVM codeGen, query optimizer, fault tolerance, collaborative teams, cloud-native database
- Level: mid
- Type: full_time
Niantic
Niantic's mission is to use emerging technology to enrich our experiences as human beings in the physical world. We build products that inspire movement, explo…
Bellevue
- Skills: Java, Go, C++, Python, SQL, networked systems, distributed systems, ETL pipelines, Kubernetes, AWS
- Level: mid
- Type: full_time
Axon
At Axon, we’re on a mission to Protect Life. We’re explorers, pursuing society’s most critical safety and justice issues with our ecosystem of devices and clou…
Seattle
- Skills: cloud services, open source technologies, system design, architecture decision, software development, scalable systems, Java, Scala, Golang, SQL
- Level: senior
- Type: full_time
Google's software engineers develop the next-generation technologies that change how billions of users connect, explore, and interact with information and one …
Seattle
- Skills: cloud computing, distributed systems, infrastructure, software development, technical leadership, data structures, algorithm design, networking, system design, AI/ML
- Level: mid
- Type: full_time
Truveta
Truveta is the world’s first health provider led data platform with a vision of Saving Lives with Data. Our mission is to enable researchers to find cures fast…
Seattle
- Skills: cloud-native, big data, distributed systems, data pipelines, APIs, Java, Python, C#, AWS, Kubernetes
- Level: mid
- Type: full_time
Palantir
Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empo…
Seattle
- Skills: software engineering, data-driven decisions, Palantir Gotham, Palantir Foundry, code quality, collaboration, open-source technologies, Java, Go, Typescript
- Level: mid
- Type: internship
Bungie
Bungie is a video game developer known for creating iconic titles and game services. The company is committed to crafting meaningful experiences in the gaming …
Bellevue
- Skills: game services, C++, C#, high-performance service development, multi-tier architecture, SQL, No-SQL, data streaming, game engines, games as a service
- Level: mid
- Type: full_time
Stripe
Stripe is a financial infrastructure platform for businesses. Millions of companies—from the world’s largest enterprises to the most ambitious startups—use Str…
Seattle
- Skills: large-scale, high-availability, data pipelines, distributed systems, infrastructure-as-a-product, cloud-based environments, performance optimization, user-first solutions, innovation, Apache Airflow
- Level: mid
- Type: full_time