> Markdown version of [/jobs/ext/3652455-senior-software-engineer](https://www.wearedevelopers.com/jobs/ext/3652455-senior-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer - **Company:** Harvey Nash - **Location:** Seattle, WA, United States - **Experience:** Expert - **Salary:** $124,800.0 - $145,600.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Amazon S3, Databases, Software Design Patterns, Distributed Systems, Systems Development Life Cycle, Service-Oriented Architecture, Software Engineering, TypeScript, State Machines, Agentic-AI, Information Technology, Functional Programming, Data Pipelines - **Published:** October 9, 2026 - **Apply:** https://www.disabledperson.com/jobs/75929667-senior-software-engineer ## About the Role * Bachelor's degree in Computer Science, Engineering, Mathematics, or a related field. * 3+ years of professional software development experience. * 2+ years of design or architecture (design patterns, reliability and scaling) of new and existing systems experience. * Required: Java / Typescript, AWS services (Step Functions, S3, Dynamo, Lambda), distributed systems, and data pipeline development. * Experience with AI-native systems development, agentic frameworks (using Bedrock), ad-tech platforms, campaign management systems, AWS Cleanrooms, TypeScript, etc. * Database technology experience. ## Description We are seeking a Software Development Engineer to design, build, and maintain scalable backend systems that drive delivery experiences. Develop and support high-performance, low-latency services using Service-Oriented Architecture (SOA) and APIs.