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Mid Level Frontend Developer Jobs in Hayward, CA

CLERA

AI Engineer (Mid-Level)

San Francisco, CA · On-site

$180 - $400/hr

We're looking for a mid-level AI Engineer (2-8 years of experience) who is comfortable owning ... frontend and backend code, and operate production systems with CI/CD, monitoring, and testing.

Clera

AI Engineer (Mid-Level)

San Francisco, CA · On-site

$180K - $400K/yr

As a Mid-Level AI Engineer on our core product team, you'll work across the full stack to ship ... frontend and backend code, and operate production systems with CI/CD, monitoring, and testing.

Clera

AI Engineer (Mid-Level)

San Francisco, CA · On-site

$180K - $400K/yr

As a Mid-Level AI Engineer on our core product team, you'll work across the full stack to ship ... frontend and backend code, and operate production systems with CI/CD, monitoring, and testing.

Hercules

Frontend Engineer

San Francisco, CA · On-site +1

$100K - $250K/yr

Hercules is looking for a senior or staff level frontend software engineer to help us build the future of AI software development What will you do? You will build and own user-facing interfaces and ...

AssetMark

Director, Engineering Manager

Concord, CA · On-site

Lead and develop a multi-squad frontend engineering team, with a strong emphasis on growing junior and mid-level engineers into exceptional talent * Establish a culture of craft excellence ...

Measurabl

Staff Software Engineer (Web)

Oakland, CA · On-site

$175 - $205/hr

We're especially interested in 1-2 engineers with strong, architect-level frontend expertise who ... junior and mid-level developers, and collaborating across teams on engineering-wide initiatives.

New

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All JobsMid Level Frontend Developer JobsMid Level Frontend Developer Jobs in Hayward, CA

Mid Level Frontend Developer information

See Hayward, CA salary details

$48.7K

$126.6K

$178.3K

How much do mid level frontend developer jobs pay per year?

As of Aug 20, 2026, the average yearly pay for mid level frontend developer in Hayward, CA is $126,587.00, according to ZipRecruiter salary data. Most workers in this role earn between $119,200.00 and $138,700.00 per year, depending on experience, location, and employer.

What is a mid level frontend developer?

Mid Level Frontend Developers are professionals with a few years of experience building and maintaining the user-facing parts of websites or web applications. They are proficient in HTML, CSS, and JavaScript, and often work with frameworks like React, Angular, or Vue.js. Mid level developers are capable of taking on more complex features and tasks independently, collaborating with designers and backend developers, and contributing to code reviews and project planning. They bridge the gap between junior and senior roles by demonstrating problem-solving skills, code quality, and a good understanding of best practices.

What skills and qualifications are needed to thrive as a mid level frontend developer?

To thrive as a Mid Level Frontend Developer, you need strong proficiency in HTML, CSS, JavaScript, and modern frontend frameworks like React or Angular, along with a relevant degree or equivalent experience. Familiarity with version control systems (such as Git), build tools, and testing frameworks is typically required. Effective problem-solving, attention to detail, and clear communication are essential soft skills for collaborating with designers and backend developers. These skills ensure the delivery of high-quality, user-friendly web applications that meet both technical and business requirements.

What are common challenges a mid level frontend developer faces when integrating with backend services, and how can these be managed?

Mid Level Frontend Developers often encounter challenges such as handling inconsistent API responses, managing asynchronous data flows, and ensuring seamless communication between the frontend and backend. To address these issues, it's important to collaborate closely with backend developers, maintain clear API documentation, and use tools like Postman or Swagger for testing. Additionally, implementing robust error handling and utilizing state management libraries can help ensure a smooth user experience and efficient debugging.

Are mid level front end developers still in demand?

Mid level front end developers are currently in strong demand due to ongoing digital transformation and the need for user-friendly interfaces. Skills in JavaScript frameworks like React or Angular, along with knowledge of HTML and CSS, remain highly valued by employers across various industries.

What are the most commonly searched types of Frontend Developer jobs in Hayward, CA?

The most popular types of Frontend Developer jobs in Hayward, CA are:

What cities near Hayward, CA are hiring for Mid Level Frontend Developer jobs?

Cities near Hayward, CA with the most Mid Level Frontend Developer job openings:

Mid Level Frontend Developer jobs near you
Infographic showing various Mid Level Frontend Developer job openings in Hayward, CA as of August 2026, with employment types broken down into 73% Full Time, 19% Part Time, 1% Temporary, and 7% Contract. Highlights an 91% Physical, 4% Hybrid, and 5% Remote job distribution, with an average salary of $126,587 per year, or $60.9 per hour.

AI Engineer (Mid-Level)

CLERA

San Francisco, CA • On-site

$180 - $400/hr

Other

This job post has expired today. Applications are no longer accepted.

Job description

About the Role

We're a pre-seed AI-powered HR tech startup based in San Francisco, building the next generation of intelligent talent-matching products. Our core product team is small, fast-moving, and deeply technical — you'll work shoulder-to-shoulder with founders, product, and design to ship agentic systems that automate complex, multi-step workflows across regulated and enterprise domains.

We're looking for a mid-level AI Engineer (2–8 years of experience) who is comfortable owning production systems end-to-end, from data model to deploy and monitoring, and who thrives in an environment where pragmatic engineering judgment matters as much as technical depth.

Visa sponsorship is not available for this role.

What You'll Do

  • Design, build, and maintain agentic systems that automate complex, multi-step workflows across domains such as healthcare, legal, fintech, logistics, and compliance.

  • Own production retrieval-augmented generation (RAG) pipelines and retrieval infrastructure — including vector databases, embeddings, and indexing — for domain-specific search at scale.

  • Implement multi-agent orchestration, tool-calling, memory, and reasoning components to deliver robust AI-driven user experiences.

  • Develop evaluation and safety infrastructure to measure model performance, surface regressions, and enforce enterprise-level trust and reliability.

  • Ship full-stack AI products from MVP to enterprise-grade: design APIs and data models, implement frontend and backend code, and operate production systems with CI/CD, monitoring, and testing.

  • Collaborate cross-functionally to prioritize work, define success metrics, and iterate based on user feedback and telemetry.

What We're Looking For

Must-haves:

  • 2+ years of software engineering experience with a track record of shipping user-facing or backend products.

  • Practical experience deploying LLMs or LLM-based services in production, including prompt design, orchestration, and tool integration.

  • Full-stack proficiency: Python plus TypeScript/React (or equivalent), experience with cloud platforms (AWS or GCP), and relational or NoSQL databases.

  • Working knowledge of RAG patterns, vector databases, embeddings, and retrieval pipelines, with sound judgment to choose appropriate approaches.

  • Experience building automated tests, evaluations, and monitoring for AI systems to ensure reliability beyond demos.

  • Experience designing API-driven, high-throughput systems and real-time product features.

Nice-to-haves:

  • Experience with agent or workflow frameworks such as LangGraph or CrewAI, and orchestration tools such as Temporal or Trigger.

  • Background building multi-tenant or enterprise-ready systems, or experience in regulated industries (healthcare, fintech, legal).

  • Familiarity with fine-tuning, parameter-efficient tuning, or multi-modal model integration.

Compensation & Benefits

  • Salary: $180,000 – $400,000 USD annually (inclusive of equity where applicable)

  • Early-stage equity opportunity

  • High-ownership, high-impact role on a lean, experienced core team

Location

This is an on-site role based in San Francisco, CA. Candidates must be located in or willing to relocate to the San Francisco Bay Area. Visa sponsorship is not available.

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