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Java engineer Jobs in San Francisco, CA

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Java engineer • san francisco ca

Last updated: 11 hours ago

Remote Senior Java Engineer - AI Trainer

SuperAnnotateAlameda, California, US
Remote
Full-time

As a Senior Java Engineer, you will work remotely on an hourly paid basis to review AI-generated Java code, architectural solutions, and technical explanations, as well as generate high-quality ref...Show more

Staff Software Engineer – Java | Kafka | Kubernetes

WEX IncBay Area, CA
Remote
Full-time

Note: Candidates should be based in the NYC/NJ area.We are the WEX Fleet Services team, dedicated to building modern API interfaces for WEX’s industry-leading fuel card platform.We are defining and...Show more

Data Engineer

micro1San Francisco Bay Area, California, United States
Full-time

Salary: $80,000 - 140,000 per year.Design, build, and maintain scalable data pipelines to ingest, process, and transform data from multiple sources.Collaborate with AI researchers and data scientis...Show more

 • Promoted • New!

Principal Software Engineer - Java/AWS

Early WarningSan Francisco
Full-time

At Early Warning, we’ve powered and protected the U.Zelle®, Paze℠, and so much more.As a trusted name in payments, we partner with thousands of institutions to increase access to financial services...Show more

Remote Senior Java Engineer - AI Trainer

SuperAnnotateOakland, California, US
Remote
Full-time

As a Senior Java Engineer, you will work remotely on an hourly paid basis to review AI-generated Java code, architectural solutions, and technical explanations, as well as generate high-quality ref...Show more

Staff Mechanical Engineer, Spacecraft Engineer

Motive CompaniesAlameda, CA, US
Permanent

We are seeking a Staff Mechanical Engineer to lead the mechanical design and manufacturability of next-generation Hall-effect thrusters for spacecraft propulsion.This position is critical in ensuri...Show more

AI Engineer / Senior AI Engineer

Blue MatterSouth San Francisco, CA, US
Full-time
Quick Apply

Blue Matter is a rapidly growing management consultancy focused on the biopharmaceutical industry.We partner with clients to help them achieve commercial success across the lifecycle of their produ...Show more

Principal Engineer - Java/AWS, Zelle

Early WarningSan Francisco
Full-time

At Early Warning, we’ve powered and protected the U.Zelle®, Paze℠, and so much more.As a trusted name in payments, we partner with thousands of institutions to increase access to financial services...Show more

Java Lead

Donato Technologies IncSan Francisco Bay Area, CA, US
Full-time

Greetings from Donato Technologies Inc.We have an immediate opening with my client.If you are looking for a ​new project, please send me a copy of your updated resumes​.Experience in implementing a...Show more

Java Full Stack Developer (1 4 years) USC/GC

Hudson ManpowerBay Area, CA, US
Full-time

Java Full Stack Developer with AWS.The ideal candidate should have an end-to-end product mindset, including design, development, testing, and deployment.Ready to Relocate in any part of the United ...Show more

Remote Senior Java Engineer - AI Trainer

SuperAnnotateSouth San Francisco, California, US
Remote
Full-time

As a Senior Java Engineer, you will work remotely on an hourly paid basis to review AI-generated Java code, architectural solutions, and technical explanations, as well as generate high-quality ref...Show more

Remote Senior Java Engineer - AI Trainer

SuperAnnotateDaly City, California, US
Remote
Full-time

As a Senior Java Engineer, you will work remotely on an hourly paid basis to review AI-generated Java code, architectural solutions, and technical explanations, as well as generate high-quality ref...Show more

Java with DevOps Engineer - ENTRY

SynergisticITSan Francisco, CA, US
Full-time

Launch Your Tech Career with Confidence — SynergisticIT Is Your Next Best Move.Are you eager to start a thriving career in tech but unsure how to bridge the gap between learning and getting hired? ...Show more

Java Server Engineer

TradeJobsWorkForce94126 San Francisco, CA, US
Full-time

Java Server Engineer Job Duties: Evaluates Web applications by studying systems flow, data usage, and data requirements.Plans server solutions by developing flowcharts, layouts, and diagrams; defin...Show more

 • Promoted

Remote Senior Java Engineer - AI Trainer

SuperAnnotateTamalpais-Homestead Valley, California, US
Remote
Full-time

As a Senior Java Engineer, you will work remotely on an hourly paid basis to review AI-generated Java code, architectural solutions, and technical explanations, as well as generate high-quality ref...Show more

Remote Senior Java Engineer - AI Trainer

SuperAnnotateTiburon, California, US
Remote
Full-time

As a Senior Java Engineer, you will work remotely on an hourly paid basis to review AI-generated Java code, architectural solutions, and technical explanations, as well as generate high-quality ref...Show more

Remote Senior Java Engineer - AI Trainer

SuperAnnotateEmeryville, California, US
Remote
Full-time

As a Senior Java Engineer, you will work remotely on an hourly paid basis to review AI-generated Java code, architectural solutions, and technical explanations, as well as generate high-quality ref...Show more

Lead Java Developer - Calypso

WELLS FARGO BANKSAN FRANCISCO, California, United States of America
Full-time

Are you looking for more? Find it here.At Wells Fargo, we believe that a meaningful career is much more than just a job.It's about finding all the elements that help you thrive, in one place.Living...Show more

General Engineer (Healthcare Engineer)

Terrestris Global SolutionsSan Francisco, California, United States
Full-time +1

Are you looking for a Challenge?.Looking for an innovative organization and the opportunity to learn and grow professionally? We can help! We are seeking a.General Engineer (Healthcare Engineer).Ve...Show more

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Remote Senior Java Engineer - AI Trainer

Remote Senior Java Engineer - AI Trainer

SuperAnnotateAlameda, California, US
30+ days ago
Job type
  • Full-time
  • Remote
Job description

As a Senior Java Engineer, you will work remotely on an hourly paid basis to review AI-generated Java code, architectural solutions, and technical explanations, as well as generate high-quality reference implementations and reasoning steps. You will assess solutions for accuracy, clarity, and adherence to the prompt; identify errors in logic, performance, or design; fact-check technical information; write high-quality explanations and model solutions that demonstrate correct methods; and rate and compare multiple AI responses based on correctness and reasoning quality.

This fully remote, hourly paid contractor role is with SME Careers, a fast-growing AI data services company and subsidiary of SuperAnnotate that provides AI training data to many of the world’s largest AI companies and foundation model labs, where your Java expertise will directly help improve the world’s premier AI models.

Key Responsibilities :

  • Develop AI Training Content : Create detailed prompts in various topics and responses to guide AI learning, ensuring the models reflect a comprehensive understanding of diverse subjects.
  • Optimize AI Performance : Evaluate and rank AI responses to enhance the model's accuracy, fluency, and contextual relevance.
  • Ensure Model Integrity : Test AI models for potential inaccuracies or biases, validating their reliability across use cases.

Your Profile :

  • Bachelor’s degree or higher in Computer Science, Software Engineering, or a closely related technical field.
  • 5+ years of professional software engineering experience, with significant hands-on work in Java on production systems.
  • Deep understanding of core Java, concurrency primitives, and the Java Collections Framework.
  • Extensive experience building and maintaining backend services using Spring or Spring Boot, REST APIs, and microservice architectures.
  • Strong grasp of software design principles, system design, and performance optimization in distributed Java systems.
  • Minimum C1 English proficiency (written and spoken), with the ability to write clear technical explanations and follow detailed English-language guidelines.
  • Comfort working with modern engineering tooling such as Git, CI / CD pipelines, automated testing frameworks, and containerization technologies.
  • Demonstrated experience conducting thorough code reviews and providing structured, constructive feedback to other engineers.
  • Previous experience with AI data training, annotation, or evaluating AI-generated technical content is a strong plus.
  • Highly detail-oriented and systematic, with a methodical approach to evaluating reasoning quality and identifying subtle issues in Java solutions.