ZipRecruiter

Log In

1

Contract Backend Developer Jobs in Berkeley, CA (NOW HIRING)

IESF AG

Senior Web3 Back End Engineer

San Francisco, CA · On-site +1

We are seeking for a seasoned backend engineer with sharp web3 expertise. You will help design and ... Strong experience integrating with protocols and smart contracts, including complex transaction ...

IESF AG

Senior Web3 Back End Engineer

San Francisco, CA · Remote

We are seeking for a seasoned backend engineer with sharp web3 expertise. You will help design and ... Strong experience integrating with protocols and smart contracts, including complex transaction ...

Slope

Senior Backend Engineer

San Francisco, CA · On-site

We are looking for a senior backend engineer to own the backend systems that make that possible ... Experience designing APIs, services, jobs, data models, and contracts that other teams depend on.

Job Mobz

Remote Backend SWE

San Francisco, CA · On-site +1

Company Description This is a contract position for one of our fintech clients. This person will be working within either the brokerage or crypto teams! We're looking for a backend engineer who gets ...

Job Mobz

Remote Backend SWE

San Francisco, CA · Remote

Company Description This is a contract position for one of our fintech clients. This person will be working within either the brokerage or crypto teams! We're looking for a backend engineer who gets ...

Attain

Lead Backend Engineer

Redwood City, CA · On-site

This is an exciting opportunity for a senior developer who is excited about growing into a broader ... Define and maintain clean, well-documented APIs and client-server contracts used by iOS and Android ...

Attain

Lead Backend Engineer

Redwood City, CA · On-site

This is an exciting opportunity for a senior developer who is excited about growing into a broader ... Define and maintain clean, well-documented APIs and client-server contracts used by iOS and Android ...

Doist

Senior Backend Engineer

San Francisco, CA · On-site

$170 - $250/hr

We are looking for a senior backend engineer to own the backend systems that make that possible ... Experience designing APIs, services, jobs, data models, and contracts that other teams depend on.

New

De Circle

Odos - Backend Engineer

San Francisco, CA · On-site +1

About the Role: We're looking for a dynamic, fast-paced individual who is excited to play a crucial role in a lean team as a core Backend and Smart Contract Engineer. This role will be responsible ...

Usul

Backend Platform Engineer

San Francisco, CA · On-site

$140 - $190/hr

Were the youngest founders to ever win a US Defense contract. Over the past year, weve helped ... Python, DevOps, Bash, Linux, Kubernetes, Terraform, AWS/GCP, and agentic/LLM tooling. * Bonus:

Usul

Backend Platform Engineer

San Francisco, CA · On-site

$180K - $240K/yr

We're the youngest founders to ever win a US Defense contract. Over the past year, we've helped ... Python, DevOps, Bash, Linux, Kubernetes, Terraform, AWS/GCP, and agentic/LLM tooling. * Bonus:

previous pagenext page

Showing results 21-40

All JobsContract Backend Developer JobsContract Backend Developer Jobs in Berkeley, CA

Contract Backend Developer information

See Berkeley, CA salary details

$14

$70

$103

How much do contract backend developer jobs pay per hour?

As of Aug 20, 2026, the average hourly pay for contract backend developer in Berkeley, CA is $70.69, according to ZipRecruiter salary data. Most workers in this role earn between $57.98 and $83.61 per hour, depending on experience, location, and employer.

What is a contract backend developer?

Contract backend developers are professionals hired on a temporary or project basis to build and maintain the server-side logic, databases, and APIs that power web or mobile applications. They work behind the scenes to ensure that applications function smoothly, handle data efficiently, and communicate effectively with front-end systems. Unlike full-time employees, contract backend developers typically work for a set duration or on specific projects, offering flexibility to both clients and developers. They often bring specialized expertise in programming languages such as Python, Java, Node.js, or Ruby, and may work remotely or on-site depending on the contract terms.

What are the key skills and qualifications needed to thrive as a contract backend developer, and why are they important?

To thrive as a Contract Backend Developer, you need strong programming skills in languages like Python, Java, or Node.js, along with experience in database management and API development, supported by a relevant degree or proven project experience. Familiarity with frameworks (such as Django, Spring, or Express), cloud services (like AWS or Azure), and version control systems (e.g., Git) is typically expected. Excellent problem-solving abilities, strong communication, and the ability to quickly adapt to new codebases and team environments set top contractors apart. These skills and qualities are crucial for delivering reliable, scalable backend solutions and integrating smoothly into diverse project teams.

What are some common challenges faced by contract backend developers when joining a new project?

Contract Backend Developers often encounter challenges such as quickly understanding existing codebases, adapting to different tech stacks, and aligning with the team's development practices. Since contract roles usually have tight deadlines, developers must rapidly familiarize themselves with project documentation and workflows. Effective communication with team members and proactive clarification of requirements are essential to ensure smooth integration and successful project outcomes.

What are the most commonly searched types of Backend Developer jobs in Berkeley, CA?

The most popular types of Backend Developer jobs in Berkeley, CA are:

What job categories do people searching Contract Backend Developer jobs in Berkeley, CA look for?

The top searched job categories for Contract Backend Developer jobs in Berkeley, CA are:

What cities near Berkeley, CA are hiring for Contract Backend Developer jobs?

Cities near Berkeley, CA with the most Contract Backend Developer job openings:

Contract Backend Developer jobs near you
Infographic showing various Contract Backend Developer job openings in Berkeley, CA as of August 2026, with employment types broken down into 82% Full Time, 4% Part Time, and 14% Contract. Highlights an 81% Physical, 6% Hybrid, and 13% Remote job distribution, with an average salary of $147,038 per year, or $70.7 per hour.

Senior Web3 Back End Engineer

IESF AG

San Francisco, CA • On-site, Remote

Full-time

Re-posted 3 days ago

Job description

Company Description
Our client is an US based company, operating within the crypto economy and is supported by top tier funds. The company is focussed to connect capital to the most attractive risk adjusted yield across chains.
The company is growing its valued engineering team and we are looking for a skilled Senior Web3 Back End Engineer(fully remote role).
Job Description
We are seeking for a seasoned backend engineer with sharp web3 expertise.
You will help design and scale the infrastructure that powers a multichain yield platform.
If you enjoy building real systems rather than prototypes, you could be an excellent match.
Core Tasks
  • Take ownership of core backend systems for a multichain yield engine
  • Shape how on chain yield products evolve in the coming years

Join early and influence product, architecture and culture
Qualifications
Your Profile:
  • Three or more years of experience building and launching production web3 backend systems
  • Strong experience integrating with protocols and smart contracts, including complex transaction flows and RPC interactions
  • Solid understanding of EVM internals, smart contract design patterns and industry best practices
  • Comfortable with tools such as Tenderly, ethers, viem and wagmi
  • Able to push through technical challenges with creativity and persistence
  • Comfortable working independently in an environment with shifting context
  • Care deeply about building things that users trust
  • Care about secure, fault tolerant and maintainable infrastructure

Nice to Have
  • Experience deploying smart contracts to mainnet and EVM compatible networks
  • Solidity DeFi protocols development
  • JavScript BE with NodeJS

Additional Information
The Company offers:
• Excellent remuneration and social benefits
• Dynamic work environment
• Friendly and open-minded team
• And many more

Apply