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Java Developer Startup Jobs in California (NOW HIRING)

SaveDay Inc

Full Stack Engineer

Newark, CA · On-site

Overall 3-5 years of experience as a Software Developer * Extensive experience in Java EE ... Passion to be part of a growing startup Additional Information SaveDay Offers * Competitive salary

SaveDay Inc

Full Stack Engineer

Newark, CA · On-site

Overall 3-5 years of experience as a Software Developer * Extensive experience in Java EE ... Passion to be part of a growing startup Additional Information SaveDay Offers * Competitive salary

Apple

Senior Software Engineer

Sunnyvale, CA · On-site

$143K - $189K/yr

Join our team, we work in a startup-like environment and you will be part of every stage of ... Apple's eBusiness services team seeks an outstanding Senior Fullstack Java Engineer to implement ...

Apple

Senior Software Engineer

Sunnyvale, CA · On-site

$143K - $189K/yr

Join our team, we work in a startup-like environment and you will be part of every stage of ... Apple's eBusiness services team seeks an outstanding Senior Fullstack Java Engineer to implement ...

Jobsbridge

Python Engineer

San Francisco, CA

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers ... ElasticSearch or Lucene - Experience in a fast-paced/customer-centric agile startup environmentSo ...

Amiri Recruiting

AI Support Engineer

San Francisco, CA · On-site

Proficiency in programming languages such as Python, Java, or Go * Strong organizational skills and ... Strong problem-solving skills and the ability to work in a fast-paced, dynamic startup environment.

SaveDay Inc

Front End Developer

Newark, CA · Hybrid

$117K - $136K/yr

Company Description Venture-backed fintech Startup SaveDay was founded with the vision to help ... Knowledge of a strongly typed server-side language such as Java * Knowledge of a scripting language ...

SaveDay Inc

Front End Developer

Newark, CA · On-site

$117K - $136K/yr

Company Description Venture-backed fintech Startup SaveDay was founded with the vision to help ... Knowledge of a strongly typed server-side language such as Java * Knowledge of a scripting language ...

Tech-mex

Mobile Engineer

Pleasanton, CA · On-site

$50K - $58K/yr

We are looking for a phenomenal Application Developer PREFERRED SKILLS: * Expertise in LLDB, SQLite ... Previous experience with Agile and Lean Startup style development REQUIRED SKILLS: * Bachelors ...

Tech-Mex

Mobile Engineer

Pleasanton, CA

$50K - $58K/yr

We are looking for a phenomenal Application Developer PREFERRED SKILLS: Expertise in LLDB, SQLite ... Startup style development REQUIRED SKILLS: Bachelors degree or higher in computer science ...

Nirmata

AI Software Engineer Intern

San Jose, CA

Opportunity to be part of an early stage startup. * Opportunities to contribute to a cutting-edge SaaS platform, featuring microservices in Java and Go, orchestrated with Kubernetes, utilizing ...

Procom

Software Engineer

Santa Clara, CA

Use experience in developing java REST services to add new APIs for the LNC project * Build unit ... Have a startup mindset and willing to take initiative. * Experience working in an Agile development ...

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Java Developer Startup information

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How much do java developer startup jobs pay per hour?

As of Jun 20, 2026, the average hourly pay for java developer startup in California is $55.96, according to ZipRecruiter salary data. Most workers in this role earn between $48.41 and $62.64 per hour, depending on experience, location, and employer.

What is a Java Developer Startup job?

A Java Developer Startup job involves designing, developing, and maintaining Java-based applications in a fast-paced startup environment. Developers work on scalable solutions, collaborate with cross-functional teams, and adapt to evolving product requirements. Unlike corporate roles, startup jobs often require versatility, problem-solving skills, and the ability to work with limited resources.

What kind of work environment and team structure can I expect as a Java Developer in a startup?

As a Java Developer in a startup, you'll typically work in a small, agile team where roles can be fluid and collaboration is highly encouraged. You may have the opportunity to work closely with product managers, designers, and other developers, allowing for greater input into the overall direction of the product. Daily responsibilities often extend beyond coding to include brainstorming sessions, code reviews, and quick iteration based on user feedback. The environment is fast-paced, offering opportunities for rapid skill development and taking on new responsibilities as the company grows. This setting is ideal for those who enjoy problem-solving, continuous learning, and making a direct impact on the product and business.

What are the key skills and qualifications needed to thrive in the Java Developer Startup position, and why are they important?

A successful Java Developer in a startup environment should have strong proficiency in Java, object-oriented programming principles, and experience with frameworks like Spring or Hibernate, often backed by a degree in computer science or a related field. Familiarity with version control systems (like Git), CI/CD pipelines, and cloud platforms is highly valued, and industry certifications such as Oracle Certified Professional can be advantageous. Soft skills like adaptability, proactive problem-solving, and clear communication help developers collaborate in small, fast-paced teams. These competencies are essential for quickly delivering high-quality software and driving innovation in the dynamic startup landscape.

What are the most commonly searched types of Java Developer Startup jobs in California? The most popular types of Java Developer Startup jobs in California are:
What are popular job titles related to Java Developer Startup jobs in California? For Java Developer Startup jobs in California, the most frequently searched job titles are:
What job categories do people searching Java Developer Startup jobs in California look for? The top searched job categories for Java Developer Startup jobs in California are:
What cities in California are hiring for Java Developer Startup jobs? Cities in California with the most Java Developer Startup job openings:
Java Developer Startup jobs near you
Infographic showing various Java Developer Startup job openings in California as of June 2026, with employment types broken down into 83% Full Time, 3% Part Time, and 14% Contract. Highlights an 81% Physical, 2% Hybrid, and 17% Remote job distribution, with an average salary of $116,387 per year, or $56 per hour.

Senior Software Engineer - Agentic AI Analytics (Rust / Data Systems)

Noor Staffing Group

Los Angeles, CA • Hybrid

$132K - $174K/yr

Other

Posted 6 days ago

Job description

Title: Senior Software Engineer – Agentic AI Analytics (Rust / Data Systems)
Location: Glendale, CA – structured hybrid (in-office component required)
Compensation: 200,000 – 240,000 base + equity/benefits (DOE)

***NO C2C OR VISA CANDIDATES CAN BE ACCCEPTED***

Our client is building the next generation of AI-powered analytics so brands can finally see, in real time, which advertising actually works and why. This Senior Software Engineer role sits directly with the CTO on a highly visible initiative to build an agentic, AI-driven analytics engine from the ground up using Rust, Java, and modern OLAP concepts.

If you like owning hard performance problems, designing columnar/vectorized systems, and shipping code that powers decisions for the world’s biggest brands, this is a true impact seat, not a maintenance job.

Why this role

  • Direct access to the CTO and a small, senior team driving our core AI analytics strategy, not a side project.
  • Greenfield build of an Advanced Analytics Engine with vectorized query processing, columnar storage, and OLAP capabilities aimed at sub-second performance on marketing datasets.
  • Heavy Rust and Java engineering with deep performance tuning, profiling, and hardware-aware optimization on large-scale cloud-native data systems.
  • High-growth, ad measurement / analytics space with massive data volume, where your work shapes how brands, agencies, and media companies measure outcomes.
  • Structured hybrid in Glendale, CA with strong comp, equity, and full benefits, plus a culture that emphasizes performance, learning, and fun.

Ideal candidate snapshot

  • 12+ years total software engineering, including 5+ years architecting or building high-performance data/analytics or OLAP systems; 3+ years hands-on, production Rust, ideally having come from Java.
  • Deep knowledge of columnar data engines, vectorized execution, query/dataframe optimization, and performance engineering at the system and hardware levels.
  • Strong AWS experience (designing, deploying, and optimizing scalable data and compute systems in the cloud).
  • Systems thinker who sees software, data, and infrastructure as one cohesive system; comfortable in fast-moving, startup-like environments.
  • Solid statistics / data analysis foundation; bonus for exposure to AI-driven analytics and engines like Apache DataFusion, DuckDB, ClickHouse/chDB, or for refactoring large brownfield systems.

Apply