Contract Jobs in Concord, California, United States

Cypress Global Services seeks a Full Stack .NET Developer to build and maintain web applications across the Microsoft stack. The role involves designing CRUD interfaces with .NET Core, implementing microservices, and optimizing SQL Server 2019 queries.

RezEvents and Leaderboard Games seeks an Event Emcee to host live Trivia and BINGO nights at regional venues. The role involves operating game applications, managing audio-visual setups, and entertaining guests in person.

Seasonal Returning District Sales Manager for Spirit Halloween. Responsible for operations of 3 stores, including sales, payroll, recruiting, training, employee relations, expense control, shrink, and store construction, opening, operating, and closing.

QA Automation Engineer at Cypress Global Services focuses on building and maintaining automated test suites for e‑commerce platforms. Leveraging Selenium, Java, and database technologies such as SQL, MongoDB, Snowflake, and Cassandra, the role ensures robust integration testing of APIs and data validation across multiple teams.

Best Home Health Providers' Clinical team delivers high-quality home health care, ensuring smooth transitions for patients returning home. The Physical Therapist provides skilled assessments, creates individualized treatment plans, and educates patients and families while collaborating with physicians and care teams.

Maintenance Department at Six Flags Hurricane Harbor Concord maintains park infrastructure, performing mechanical, electrical, and plumbing repairs while ensuring safety compliance. The Facilities Maintenance Technician conducts daily inspections, operates filtration systems, and logs maintenance activities, supporting ride and water quality teams.

Worldly is hiring a Growth Marketer contractor to execute growth marketing campaigns and report on performance for its impact intelligence platform serving 40,000 global brands. You will take campaigns from brief to launch to results readout—building emails and HubSpot workflows, launching LinkedIn and Google Ads, setting up landing pages, QA-ing assets, and pulling reports.

Construction Management Team at Essel oversees multi-family building projects. The Construction Superintendent leads daily on‑site activities, coordinates subcontractors, ensures safety and quality compliance, and collaborates with project managers, architects, and engineers.

RezEvents and Leaderboard Games is now hiring Game Night Event Hosts / Emcee for in person game night events! This is a fun, flexible gig that is perfect for a motivated event host, actor, comedian or personable performer.

Davies Risk Services is seeking independent contractors to perform insurance property surveys for residential and commercial properties. Day-to-day duties include driving to inspection sites, photographing properties, documenting property details and overall conditions, and submitting reports online via PC/desktop with attachments.

Construction Site Team at Essel Environmental builds and maintains construction projects in Pleasant Hill, CA. The General Laborer moves materials, cleans and prepares sites, assists carpenters and other trades, and works outdoors in various weather while adhering to safety standards. Pleasant Hill, California, on-site work model.

Davies Risk Services seeks independent contractors to perform insurance property surveys for residential and commercial properties in Pleasant Hill, CA. Contractors drive to inspections, photograph properties, gather property details and overall conditions, and submit reports online via PC/desktop with attachments. This is a full-time or part-time contract opportunity requiring a reliable car, Windows 10 or newer computer, smartphone or digital camera, and reliable home internet.

Kreyco (formerly Language Learning Network) connects schools and teachers to deliver preK‑12 education across the United States. As a Spanish‑English Bilingual Teacher you will deliver curriculum, coach students, and mentor peers while supporting bilingual instruction for any grade level.

Kreyco, a nationwide preK-12 education organization, builds strong partnerships between schools and teachers to support diverse learners. As a Special Education Self-Contained Instruction Teacher, you will deliver curriculum, provide coaching, and mentor students across all grade levels.

Kreyco, a nationwide preK-12 education organization, connects schools with qualified language teachers. Teachers will deliver World Language instruction (Spanish, Italian, French, Latin, ASL, Chinese/Mandarin) across grade levels, supported by provided curriculum, coaching, and professional development.

Experienced radiation therapist skilled in MR‑Linac and VersaHD platforms, delivering precise treatments, performing QA, simulations, and patient care in a collaborative oncology setting.

BCI seeks a dedicated and passionate Healthcare Security Supervisors to serve as an integral part of the security and care delivery team for a leading healthcare provider. The Security Supervisor will supervise shifts; act as relief to the Security Account Manager during off-hours, or for limited absences; conduct roving patrol and incident supervision in complex facilities.

Kreyco, a nationwide preK-12 education organization, connects schools with passionate teachers to deliver comprehensive curricula. The role involves teaching elementary students across all subjects, utilizing provided curriculum, coaching, and professional development resources.

Kreyco, a nationwide preK-12 education organization, connects schools with qualified teachers to deliver strong curriculum and mentorship. This role supports middle and high school Chemistry and Physics classes, providing curriculum, coaching, and professional development to ensure classroom success.

The Medication Technician @ Byron Park administers resident medication or assists residents with self-administration of medication and coordinates treatments to residents. Day-to-day duties include observing residents for changes in condition, tracking vital signs and weight, performing diabetic testing or insulin injections, logging and re-ordering medications, and documenting care using company forms.