Software Developer II, Cosmos

Amazon is hiring a Software Developer II, Cosmos. It pays $144k-$194k a year and Level rates it ; you can apply on Amazon.

Level's read on this job

Level rates this software engineer role Little AI ●○○○: aI is not part of the work.
The posting mentions Java, TypeScript and AWS Cdk among its tools and skills.
Level classes it as a mid-level role.
Amazon has 20,000+ other open roles on Level.

AI in this role

Build and scale real-time data infrastructure and telemetry streaming pipelines for Amazon Robotics workcells.

JavaTypeScriptAWS CdkKinesisFlinkAthena

distributed-systemsdata-engineeringstreaming-pipelines

Are you excited about building data platforms that power the next generation of robotics at Amazon? The Cosmos team is looking for a Software Development Engineer I to help build and scale our real-time data infrastructure that collects, processes, and delivers telemetry from robotic workcells across Amazon's fulfillment network.

As a Software Engineer on Cosmos, you will work on the systems that ingest millions of events per day from robotic equipment, process them through streaming pipelines, and land them in our data lake where they drive operational insights and business decisions. Our stack includes Java and TypeScript services deployed via CDK, with streaming powered by Kinesis and Flink, and analytics via Athena. You will contribute to services that engineering teams, operations, and business intelligence rely on to monitor and optimize workcell performance at scale.

This is an opportunity to work at the intersection of robotics, data engineering, and distributed systems in a fast-paced, high-impact environment.

Key job responsibilities
- Design, develop, and maintain components of the Cosmos data pipeline, including event ingestion, stream processing, and data lake storage
- Write clean, well-tested production code to support real-time and batch data processing
- Collaborate with robotics engineering teams to onboard new event types and data models into the Cosmos platform
- Participate in operational excellence activities including monitoring, alarming, and on-call support for team-owned services
- Contribute to code reviews, design discussions, and sprint planning within an agile development team
- Troubleshoot and resolve issues in distributed systems, working across service boundaries when needed

A day in the life
You will start your day reviewing metrics and alarms for the services you own, then move into writing code for a new feature or bug fix. You might pair with a teammate to review a design for a new event model, then test your changes in a pre-production environment. You will collaborate closely with robotics engineers, data scientists, and BI engineers who consume Cosmos data. Your work directly impacts how Amazon monitors, analyzes, and improves robotic workcell performance in fulfillment centers around the world.

About the team
Cosmos is the central data platform for Amazon Robotics workcell telemetry. We collect events from robotic equipment, process them through streaming pipelines built on Kinesis and Flink, and deliver structured data to our data lake for analytics via Athena and real-time monitoring. Our customers include robotics engineering teams, operations, and business intelligence. We are a collaborative, engineering-driven team that values ownership, operational excellence, and continuous learning.

Basic qualifications

- 3+ years of non-internship professional software development experience
- 2+ years of non-internship design or architecture (design patterns, reliability and scaling) of new and existing systems experience
- 1+ years of software development engineer or related occupational experience
- 1+ years of designing and developing large-scale, multi-tiered, multi-threaded, embedded or distributed software applications, tools, systems, and services using: C#, C++, Java, or Perl experience
- 1+ years of Object Oriented Design experience
- Bachelor's degree or foreign equivalent in Computer Science, Engineering, Mathematics, or a related field
- Experience programming with at least one software programming language

Preferred qualifications

- 3+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience
- Experience building or operating real-time data pipelines using Apache Flink, Amazon Kinesis, or similar stream-processing frameworks in a production environment
- Experience designing or maintaining data solutions using relational databases, data warehouses (e.g., Redshift), or data lake architectures (e.g., S3, Iceberg, Hive)
- Experience deploying and operating containerized services on Amazon ECS or similar container orchestration platforms

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner.

The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at https://amazon.jobs/en/benefits.

USA, MA, Westboro - 143,700.00 - 194,400.00 USD annually

How we rate this

Software Developer II, Cosmos at Amazon rates 0 out of 100 for how much of the daily work is AI. That makes it Little AI (AI Level 1 of 4). The level is about AI in the job, not seniority.

Classification

Little AI. AI is not part of the work.

●●●● Builds AI80 to 100
●●●○ Works on AI60 to 79
●●○○ Uses AI40 to 59
●○○○ Little AI0 to 39

Levels come from how often the tools, models and workflows of the role are named in the posting itself. Read the description and count the AI tools, models and workflows it names.

Key facts

Software Developer II, Cosmos is an open job at Amazon.
Level rates this role AI Level 1 of 4: Little AI.
The listed salary is $144k-$194k a year.
The role is based in US, MA, Westboro.
The job was posted on September 3, 2026.
Seniority: mid.
Applications are handled by Amazon. Apply on Amazon

Prepare for this job

Built from this posting and from similar jobs on Level.

Skills and AI tools this role asks for

Distributed SystemsData EngineeringStreaming PipelinesJavaTypeScriptAWS CdkKinesisFlink

Also common in software engineer jobs at this level

Python AWS Kubernetes React Docker JavaScript

Pay

This job starts at: $144k
Typical software engineer job: $167k

This posting starts 14% below the typical software engineer job. See software engineer jobs

Questions you could be asked

Tell me about a project where distributed systems was part of your work. What did you do?
Tell me about a project where data engineering was part of your work. What did you do?
Tell me about a project where streaming pipelines was part of your work. What did you do?
What's a project where you used Java hands-on?
Walk me through how you've used TypeScript in your day-to-day work.

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List these exact terms on your resume: Distributed Systems, Data Engineering, Streaming Pipelines, Java, and TypeScript. An applicant tracking system matches the wording, not the idea.
Attach one line of real, concrete experience to at least one of them. A tool named with nothing behind it rarely survives a human read.

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