Core Java Developer Jobs in Ashland, CA, US

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Android Systems Engineer - Core Payments

Sunnyvale, California, United States

$140k-$210k/yr OnsiteFull Time

FiservNew York Stock Exchange: FI: Provides financial technology and payment processing services to institutions.

2+ YOE2-5+ years software development; Android devices/platforms; Kotlin/Java/C/C++; Android app development; UI performance; security basics.

Kotlin, Java, C, C++, Git, Gerrit, Android, AOSP, PKI, HSM, Encryption

1mo

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1mo

Software Engineer III, Core

Sunnyvale, California, United States

$147k-$211k/yr OnsiteFull Time

GoogleNASDAQ: GOOGL: Provides online search, advertising, cloud computing, and consumer electronics.

2+ YOEBachelor's degree or equivalent; 2 years in C++, Java, Python, Kotlin or Go.

C++, Java, Python, Kotlin, Go

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Lead Software Engineer - Core AI

San Francisco or United States

$200k-$215k/yr RemoteFull Time

Zeta GlobalNYSE: ZETA: Provides an AI-powered marketing platform for enterprise customer engagement.

8+ YOE8+ years engineering experience with proficiency in C#, Java, JavaScript, Go, or Python; experience with generative AI, LLMs, and cloud infrastructure; strong architecture and mentoring.

C#, Java, JavaScript, Go, Python, Generative AI, LLMs, MCP, LangGraph, OpenAI, Bedrock, Cloud infrastructure

2mo

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2mo

Staff Engineer, AI Core

Palo Alto or Miami or Washington or Durham or Toronto

HybridFull Time

NubankNew York Stock Exchange: NU: Operates a digital financial platform offering banking and credit services.

Experience as a Staff Engineer or Senior Engineer shipping complex, large-scale consumer-facing mobile apps; strong backend and AI/ML data-pipeline experience; leadership and mentorship.

Flutter, AWS, Go, Java, Python, Clojure, Microservices, Event-driven

3mo

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3mo

Senior Software Engineer II, Core Infrastructure

Mountain View, California, United States

$140k-$240k/yr OnsiteFull Time

MoveworksNYSE: NOW: AI assistant platform for automating enterprise employee workflows.

7+ YOE7+ years in design, build, ship, and maintain products or platforms; BS/MS in CS; experience with API-based platforms, REST/RPC; microservices in Python/Golang/Java/C++; startup pace; strong communication; eager to learn and iterate

Python, Golang, Java, C++, REST, APIs

2mo

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2mo

Sr. Software Engineer, Cloud - Core Reliability Services

Sunnyvale or Austin or New York City

$140k-$215k/yr HybridFull Time

CrowdStrikeNASDAQ: CRWD: Provides cloud-native endpoint protection and threat intelligence services.

7+ YOE7+ years backend development; 5+ years microservices; expert in Golang; distributed systems; production-grade code with performance and reliability focus; strong collaboration and leadership.

Golang, Java, Scala, Kotlin, Python, Node.js, Kubernetes, AWS, Cassandra, Kafka, Elasticsearch

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Staff Software Engineer - Core Experience

San Francisco or New York

$189k-$315k/yr OnsiteFull Time

Rippling: Unified platform managing workforce HR, IT, and finance operations

8+ YOE8+ years software engineering; backend systems; scalable architecture; ownership; collaboration; backend languages.

Python, Go, Java, SQL, NoSQL

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Principal Manager- Core Networking

Santa Clara, California, United States

$140k-$275k/yr OnsiteFull Time

Microsoft: Provides software, cloud computing, and hardware technology products.

6+ YOE4+ MgmtBachelor's Degree in Computer Science or related field and 6+ years engineering experience; 4+ years of management preferred; security screening required.

C, C++, C#, Java, JavaScript, Python

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Staff Engineer, Core Services Platform

San Francisco or Denver

$225k-$278k/yr HybridFull Time

Strava: Fitness tracking and social networking app for athletes.

10+ YOE10+ years backend engineering; tech lead experience; distributed systems design; proficient in Ruby/Scala/Go/Java; AWS; Kafka/Kubernetes; MySQL/Redis/Cassandra.

Ruby, Scala, Go, Java, AWS, Kafka, Kubernetes, MySQL, Redis, Cassandra

2mo

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2mo

Senior Lead AI Engineer (AI Foundations, LLM Core and Agentic AI)

New York or San Francisco or McLean or Cambridge or San Jose

$251k-$286k/yr OnsiteFull Time

Capital OneNYSE: COF: Provides credit cards, auto loans, and retail banking services.

4+ YOEBachelor's or Master's in CS/AI/EE with 4–6+ years in AI/ML; strong Python/Java; cloud experience.

AWS, Huggingface, PyTorch, VectorDBs, Nemo Guardrails, Python, Go, Scala, Java, C++, C#, Golang

2mo

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2mo

Software Engineer

San Jose, California, United States

$183k-$261k/yr HybridFull Time

ZoomNASDAQ: ZM: Provides cloud-based video communication and collaboration software platform.

3+ YOEMaster’s degree in Computer Science/Engineering or related field; 3 years of experience in Core Java, Spring Boot, design patterns, microservices, and AWS/NoSQL integration.

Java, Spring Framework, AWS, NoSQL, RESTful APIs, Microservices

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Site Reliability Engineer, Core Streaming (Remote - United States)

San Francisco, California, United States

$141k-$216k/yr RemoteFull Time

YelpNYSE: YELP: Platform connecting consumers with local businesses via reviews.

Hands-on experience with large-scale Kafka, real-time data streams, Java/Python, and infrastructure automation.

Kafka, Java, Python, Apache Flink, Infrastructure as Code

1mo

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1mo

Virtualization Software Development Engineer in Test (SDET), Core OS

Cupertino or San Francisco

OnsiteFull Time

AppleNASDAQ: AAPL: Designs and sells consumer electronics, software, and online services.

Experience in automated testing, OO languages, and CI; degree in CS/CE or equivalent.

Python, Objective-C, Swift, C, C++, Java, Jenkins, KVM, Xen, VMware, Hyper-V, Docker

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Member of Technical Staff 3- Core Data Path

San Jose, California, United States

$128k-$256k/yr HybridFull Time

NutanixNASDAQ: NTNX: Sells cloud software and hyperconverged infrastructure for enterprises.

5+ YOEBS/MS in CS or related field; strong OS and distributed systems knowledge; networks/storage experience; languages: C++, C, Java, Go, Rust, Erlang, Python; tools: GDB, Valgrind, Perf, FIO, Flamegraphs; good communication.

GDB, Valgrind, Perf, FIO, Flamegraphs

1mo

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1mo

Member of Technical Staff – X Core Product

Palo Alto, California, United States

$180k-$440k/yr OnsiteFull Time

xAI: Develops advanced artificial intelligence systems to understand the universe.

2+ YOEDistributed systems experience; Rust/Go/Python/Java; 2+ years in large-scale consumer apps; strong backend and full-stack with AI integrations.

Rust, Go, Python, Java, Distributed systems, APIs, Databases

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Staff Software Engineer – Identity Platform (.NET / Distributed Systems) Hybrid (2–3 days onsite)

Santa Clara, California, United States

$275k-$289k/yr HybridFull Time

CyberArk: Securing human and machine identities with privileged access management.

7+ YOE7+ years building large-scale, cloud-based distributed systems; strong .NET/.NET Core, or Java; experience with AWS/GCP, REST, PostgreSQL, Redis; security-focused and mentoring capability.

DotNet, DotNet Core, Java, AWS, GCP, REST, PostgreSQL, Redis, OAuth, OIDC, SAML, Security

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TECHNICAL LEAD L1 (Richmond, USA-CA, US, 1254)

Richmond, California, United States

$60k-$149k/yr OnsiteFull Time

WiproNYSE: WIT: Global technology services and consulting for digital transformation.

5+ YOE5-8 years experience; Core Java; knowledge of Spring, SQL, Unix/Linux, monitoring tools.

Java, Spring / Spring Boot, SQL, Unix/Linux, Shell scripting, Splunk, AppDynamics, Kafka, MQ, Monitoring tools