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Software Engineer Contractor Jobs in Concord, CA

Ironclad

Senior Staff Software Engineer

San Francisco, CA · On-site

$250K - $270K/yr

Ironclad is the leading AI contracting platform that transforms agreements into assets. Contracts ... Engineering @ Ironclad As a Senior Staff Software Engineer at Ironclad, you'll work cross ...

Ironclad

Senior Staff Software Engineer

San Francisco, CA · On-site

$250 - $270/hr

Ironclad is the leading AI contracting platform that transforms agreements into assets. Contracts ... Engineering @ Ironclad As a Senior Staff Software Engineer at Ironclad, you'll work cross ...

Slope

Capacity Systems Software Engineer

San Francisco, CA · On-site

$125 - $228/hr

... contracted, delivered, healthy, allocated, and ultimately converted into business and research ... About the Role We are seeking a Capacity Systems Software Engineer to build the platforms and ...

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Showing results 41-60

All JobsSoftware Engineer Contractor JobsSoftware Engineer Contractor Jobs in Concord, CA

Software Engineer Contractor information

See Concord, CA salary details

$69.7K

$161.9K

$225.5K

How much do software engineer contractor jobs pay per year?

As of Aug 23, 2026, the average yearly pay for software engineer contractor in Concord, CA is $161,873.00, according to ZipRecruiter salary data. Most workers in this role earn between $131,700.00 and $189,800.00 per year, depending on experience, location, and employer.

What is a software engineer contractor?

Software Engineer Contractors are professionals hired on a temporary or project basis to design, develop, and maintain software applications. Unlike full-time employees, they typically work for a predetermined period or on specific projects for a company. Contractors may work independently or through contracting agencies and often have flexibility regarding work hours and location. Their expertise is sought after for specialized tasks, scaling development teams, or covering skill gaps within organizations.

What are the key skills and qualifications needed to thrive as a software engineer contractor?

To thrive as a Software Engineer Contractor, you need advanced programming skills, problem-solving abilities, and a solid understanding of software development lifecycles, often backed by a relevant degree or equivalent experience. Familiarity with source control systems (like Git), cloud platforms, and project management tools, as well as proficiency in key programming languages, is typically required. Strong communication, adaptability, and self-motivation are essential soft skills for collaborating with diverse teams and managing project-based workloads. These skills ensure high-quality deliverables, effective client communication, and successful navigation of varied contract environments.

How does the work structure and team integration typically differ for software engineer contractors compared to full-time employees?

As a Software Engineer Contractor, you will often work on specific projects or deliverables within a defined contract period, which may mean less involvement in long-term planning or company-wide initiatives. Contractors are usually integrated into existing development teams, collaborating closely with full-time engineers, project managers, and QA staff, but may have less access to certain internal resources or benefits. While you can expect to contribute to daily stand-ups, code reviews, and agile sprints, the onboarding process and access to proprietary tools or systems may be streamlined for contractors. This role offers valuable exposure to diverse tech stacks and industries, and successful contracts can lead to extended engagements or full-time offers.

What is the difference between Software Engineer Contractor vs Software Engineer Full-Time Employee?

AspectSoftware Engineer ContractorSoftware Engineer Full-Time Employee
CredentialsTypically requires a relevant degree and technical skills; certifications optionalSame as contractor; often prefers ongoing professional development
Work EnvironmentProject-based, flexible hours, often remote or on-siteSteady, long-term employment, usually on-site or hybrid
Employer & Industry UsageCommon in tech, startups, consulting firmsStandard in large corporations, tech companies, and enterprises
Search & Comparison IntentLooking for short-term or project-based rolesSeeking stable, long-term employment

In summary, Software Engineer Contractors typically work on short-term projects with flexible schedules, while full-time employees enjoy ongoing employment and benefits. Both roles require similar skills and credentials but differ mainly in work arrangement and job stability.

What are popular job titles related to Software Engineer Contractor jobs in Concord, CA?

For Software Engineer Contractor jobs in Concord, CA, the most frequently searched job titles are:

What job categories do people searching Software Engineer Contractor jobs in Concord, CA look for?

The top searched job categories for Software Engineer Contractor jobs in Concord, CA are:

What cities near Concord, CA are hiring for Software Engineer Contractor jobs?

Cities near Concord, CA with the most Software Engineer Contractor job openings:

Software Engineer Contractor jobs near you
Infographic showing various Software Engineer Contractor job openings in Concord, CA as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 10% Part Time, and 5% Contract. Highlights an 88% Physical, 4% Hybrid, and 8% Remote job distribution, with an average salary of $161,873 per year, or $77.8 per hour.

Software Engineer, Security

Persona Identities, Inc

San Francisco, CA • On-site

$130K - $220K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 2 days ago

Job description

About Persona
Persona is the configurable identity platform built for businesses in a digital-first world. Verifying individuals and organizations is harder - but more important - than ever, with AI enabling fraudsters to launch sophisticated accounts at scale and regulations evolving rapidly.
We've built Persona to support practically every use case and industry - that's why we're able to serve a wide range of leading companies. For example, Reddit relies on Persona for age assurance and verification to comply with online safety regulations, protecting younger users while maintaining a seamless experience. Meanwhile, OpenAI relies on Persona to keep bad actors out, protecting one of the world's most powerful AI platforms from large-scale abuse in a time when AI is reshaping the way we work and live.
We're growing rapidly and looking for exceptional people to join us!
About the Role
Persona builds identity verification infrastructure. Security isn't a layer we add later. It's core to everything we ship. At most companies, a security failure means downtime. Here, it means a real person's identity is compromised. The stakes at Persona are different.
AI is raising the bar on both sides: it's making breaches more common and more damaging, and it's letting us build systems in-house that used to be out of reach, changing how we think about build vs. buy in real time. The engineers who can move fast on both are the ones this role is for.
This is a software engineering role first. Security curiosity matters while a dedicated security background doesn't. The team runs more like infrastructure than a typical security org: not in a silo, a lot of what we ship is core product code, and you'll be building alongside other engineering teams, not just configuring what they've already built.
What you'll work on
  • Designing and building IAM systems that enterprise customers use to manage PII across global teams
  • Internal IAM solutions for least-privilege access across the entire company
  • The framework that encrypts hundreds of distinct columns with sensitive data
  • Supply chain security as Persona's AI tooling and integrations expand
  • Building secure, convenient internal tooling for engineers as we scale AI usage

Must-haves
  • 3+ years of software engineering experience
  • You've built and shipped systems at scale, not just advised on them
  • You own implementation end-to-end, from design to delivery to operation
  • Clear communicator who can work across teams without losing technical depth
  • Willingness to operate in multiple languages, infrastructures

Nice to haves
  • Proficient in Ruby on Rails
  • Experience with IAM, authn/authz frameworks, or identity protocols (OAuth, SAML, OIDC)
  • Familiarity with software supply chain security, secure SDLC, or AI/ML security risks
  • You've worked somewhere where PII or sensitive data was the core product

The team
Small and high trust by design. High ownership from day one. This isn't a team where your work disappears into a large org, and it isn't a team where you just configure what someone else built. The team's seniority means you'll be talking every day with experienced engineers who genuinely want to collaborate and teach, both within security and across the product and platform teams we partner with. Everyone on the team got into security through a different path, and you don't need a security background to be a strong fit here.
Based in San Francisco, CA. Relocation assistance available.
Benefits and Perks
For full-time US-based employees (excluding internship and contractor opportunities), Persona offers a wide range of benefits, including medical, dental, and vision, 3% 401(k) contribution, unlimited PTO, quarterly mental health days, family planning benefits, professional development stipend, wellness benefits, among others.
For full-time UK employees, Persona offers a wide range of benefits, including private medical insurance, dental insurance, a 6% employer pension contribution, unlimited PTO, a monthly wellness stipend, professional development stipend, co-working stipend, and more.
As part of our interview process, all candidates will be asked to verify their identity with Persona. This step is used solely to confirm that candidates are who they say they are, and will have no impact on hiring decisions.

Apply