Chesterfield, MO · Hybrid
$54 - $71.25/hr
Chicago, IL, USA- Hybrid Duration: 12+ Month Contract Interview: Virtual Note: Every month ... Cryptography, GoLang, Java, NodeJs, Python, SDLC, Spring Boot Must have 10+ yrs of Blockchain ...
Chesterfield, MO · Hybrid
$54 - $71.25/hr
Chicago, IL, USA- Hybrid Duration: 12+ Month Contract Interview: Virtual Note: Every month ... Cryptography, GoLang, Java, NodeJs, Python, SDLC, Spring Boot Must have 10+ yrs of Blockchain ...
Senior QA Automation St Louis, MO Long Term W2 only, no C2C at this moment Qualifications Minimum ... Preferred: • Fluent in Java and object-oriented development • Strong background in test ...
Senior QA Automation St Louis, MO Long Term W2 only, no C2C at this moment Qualifications Minimum ... Preferred: • Fluent in Java and object-oriented development • Strong background in test ...
Contract Experience Level: 7+ years Rate: 45$/Hr on 1099/ C2C Overview We are seeking an ... Proficiency with scripting languages such as Python, JavaScript, or Java for automation.
Quick apply
Contract Experience Level: 7+ years Rate: 45$/Hr on 1099/ C2C Overview We are seeking an ... Proficiency with scripting languages such as Python, JavaScript, or Java for automation.
Saint Louis, MO · Remote
$50 - $65/hr
This is a Contract position, and the client is looking for someone to start immediately. Duration ... Must be able to work on a W2 basis (No C2C) Recruiter Name: Smriti Sinha Recruiter Phone: 484 331 ...
Quick apply
Saint Louis, MO · Remote
$50 - $65/hr
This is a Contract position, and the client is looking for someone to start immediately. Duration ... Must be able to work on a W2 basis (No C2C) Recruiter Name: Smriti Sinha Recruiter Phone: 484 331 ...
Saint Louis, MO · Remote
$75 - $85/hr
This is a Contract position, and the client is looking for someone to start immediately. Duration ... Must be able to work on a W2 basis (No C2C) Recruiter Name: Karan Mishra Recruiter Phone: (484) 235 ...
Quick apply
Saint Louis, MO · Remote
$75 - $85/hr
This is a Contract position, and the client is looking for someone to start immediately. Duration ... Must be able to work on a W2 basis (No C2C) Recruiter Name: Karan Mishra Recruiter Phone: (484) 235 ...
Saint Louis, MO · Hybrid
$111K - $133K/yr
Brokerage Tax Operations This is a W2 contract position only. No C2C/No 1099 worktypes. Role Overview: This role is a datafocused engineering position supporting tax platform implementations. It is ...
Saint Louis, MO · Hybrid
$111K - $133K/yr
Brokerage Tax Operations This is a W2 contract position only. No C2C/No 1099 worktypes. Role Overview: This role is a datafocused engineering position supporting tax platform implementations. It is ...
Saint Louis, MO · Remote
$40/hr
Deep knowledge of Java programming including primitive types, objects, boolean expressions ... Varsity Tutors does not contract in: Alaska, California, Colorado, Delaware, Hawaii, Maine, New ...
Saint Louis, MO · Remote
$40/hr
Deep knowledge of Java programming including primitive types, objects, boolean expressions ... Varsity Tutors does not contract in: Alaska, California, Colorado, Delaware, Hawaii, Maine, New ...
... contract being filled) - No micromanagement!! SOFTWARE DEVELOPER - The selected candidate will ... Or if doing C2C let me know if I need to discuss with your employer. Also let me know if you have ...
... contract being filled) - No micromanagement!! SOFTWARE DEVELOPER - The selected candidate will ... Or if doing C2C let me know if I need to discuss with your employer. Also let me know if you have ...
... contract being filled) - No micromanagement!! SOFTWARE DEVELOPER - The selected candidate will ... Or if doing C2C let me know if I need to discuss with your employer. Also let me know if you have ...
... contract being filled) - No micromanagement!! SOFTWARE DEVELOPER - The selected candidate will ... Or if doing C2C let me know if I need to discuss with your employer. Also let me know if you have ...
$47 - $62/hr
Our company provides application analysis, design, development and programming, software ... in Java/J2ee Additional Information GOOD COMMUNICATION SKILLS DURATION: Long Term Contract ...
$47 - $62/hr
Our company provides application analysis, design, development and programming, software ... in Java/J2ee Additional Information GOOD COMMUNICATION SKILLS DURATION: Long Term Contract ...
Saint Louis, MO · On-site
$64/hr
Experience with Java, Grails, Python, or Go * Experience with React frontend development ... Senior Developer, Full Stack - Contract Location: St. Louis, MO Why WWT? At World Wide Technology ...
New
Saint Louis, MO · On-site
$64/hr
Experience with Java, Grails, Python, or Go * Experience with React frontend development ... Senior Developer, Full Stack - Contract Location: St. Louis, MO Why WWT? At World Wide Technology ...
New
Saint Louis, MO · On-site
We have more than 30 IT Staffing Services contracts across USA and working closely with Fortune 500 ... Java, Scala, or NodeJS Amazon Web Services Functional programming Multiple data stores (SQL stores ...
Saint Louis, MO · On-site
We have more than 30 IT Staffing Services contracts across USA and working closely with Fortune 500 ... Java, Scala, or NodeJS Amazon Web Services Functional programming Multiple data stores (SQL stores ...
Saint Louis, MO · Hybrid
$119K - $157K/yr
Senior Software Engineer We are seeking a highly skilled Senior Software Engineer to join a top ... Java development, rule authoring, SQL, and Agile methodologies. This is a long-term contract ...
Saint Louis, MO · Hybrid
$119K - $157K/yr
Senior Software Engineer We are seeking a highly skilled Senior Software Engineer to join a top ... Java development, rule authoring, SQL, and Agile methodologies. This is a long-term contract ...
O Fallon, MO · On-site
$55 - $65/mo
Lead Performance Test Engineer O'Fallon, MO Contract and Full Time Role JD Project Scope: Lead ... in Java, Spring Boot Framework • Cloud ( Pivotal Cloud Foundry), DNA ( Digital Native ...
Quick apply
O Fallon, MO · On-site
$55 - $65/mo
Lead Performance Test Engineer O'Fallon, MO Contract and Full Time Role JD Project Scope: Lead ... in Java, Spring Boot Framework • Cloud ( Pivotal Cloud Foundry), DNA ( Digital Native ...
Saint Louis, MO · On-site
Contract * Experience in test automation using Karate Framework for API and integration testing ... with DevOps and development teams * Seeking a Specialist with 5 to 7 years of experience in ...
Quick apply
Saint Louis, MO · On-site
Contract * Experience in test automation using Karate Framework for API and integration testing ... with DevOps and development teams * Seeking a Specialist with 5 to 7 years of experience in ...
Saint Louis, MO · On-site
St Louis, MO - Remote Start Duration: 6+ Months Contract then Permanent Hire - C2H Visa: US Citizen ... Java/Python/Scala * Strong notions of security best practices (e.g. using IAM Roles, KMS, etc.
Saint Louis, MO · On-site
St Louis, MO - Remote Start Duration: 6+ Months Contract then Permanent Hire - C2H Visa: US Citizen ... Java/Python/Scala * Strong notions of security best practices (e.g. using IAM Roles, KMS, etc.
W2 Only (No C2C or 1099) Duration: 12-Month Contract Location: St. Louis, Missouri Schedule: On ... BI, and Engineering teams to align platform capabilities with business needs Required ...
W2 Only (No C2C or 1099) Duration: 12-Month Contract Location: St. Louis, Missouri Schedule: On ... BI, and Engineering teams to align platform capabilities with business needs Required ...
... contract. We need to hire 8 software engineers! You do not need a clearance, but may be required to ... Required Education/Experience: * 4 years' experience in full stack development to include Java, Web ...
... contract. We need to hire 8 software engineers! You do not need a clearance, but may be required to ... Required Education/Experience: * 4 years' experience in full stack development to include Java, Web ...
Saint Louis, MO · On-site
$80K - $158K/yr
Leveraging our holistic portfolio of capabilities in consulting, design, engineering, and ... Java/J2EE, middleware (MQ, Kafka), Linux/Unix, SQL databases. • ITSM platforms: ServiceNow ...
Saint Louis, MO · On-site
$80K - $158K/yr
Leveraging our holistic portfolio of capabilities in consulting, design, engineering, and ... Java/J2EE, middleware (MQ, Kafka), Linux/Unix, SQL databases. • ITSM platforms: ServiceNow ...
$99K - $225K/yr
Experience with programming languages such as Python or Java * Experience with software design ... as well as contract-specific affordability and organizational requirements. The projected ...
$99K - $225K/yr
Experience with programming languages such as Python or Java * Experience with software design ... as well as contract-specific affordability and organizational requirements. The projected ...
$14.59 - $19.83
0% of jobs
$19.83 - $25.08
0% of jobs
$25.08 - $30.32
1% of jobs
$30.32 - $35.56
3% of jobs
$35.56 - $40.81
6% of jobs
$40.81 - $46.05
14% of jobs
$46.26 is the 25th percentile. Wages below this are outliers.
$46.05 - $51.29
20% of jobs
The median wage is $52.61 / hr.
$51.29 - $56.54
23% of jobs
$58.77 is the 75th percentile. Wages above this are outliers.
$56.54 - $61.78
18% of jobs
$61.78 - $67.03
11% of jobs
$67.03 - $72.27
4% of jobs
$14
$52
$72
| Aspect | Contract Java Developer C2C | Contract Java Developer W2 |
|---|---|---|
| Employment Type | Independent contractor, self-employed | Employee of the staffing agency or company |
| Tax & Benefits | Responsible for own taxes, no benefits included | Taxes withheld by employer, includes benefits like health insurance |
| Work Environment | Typically remote or client-site, project-based | Usually on-site or hybrid, with more structured hours |
| Payment Structure | Invoicing clients, higher hourly rate | Salary or hourly wage, includes payroll taxes |
Contract Java Developer C2C and Contract Java Developer W2 differ mainly in employment status, tax responsibilities, and benefits. C2C offers more independence and potentially higher pay but requires managing taxes and benefits independently. W2 provides a more traditional employment setup with benefits and tax withholding. The choice depends on your preference for independence versus stability.
$54 - $71.25/hr
Other
Posted 14 days ago
Job Role: Senior Blockchain Developer
Location: Chicago, IL, USA- Hybrid
Duration: 12+ Month Contract
Interview: Virtual
Note: Every month candidate has to go onsite for team meeting.
Must have Skills/Attributes: Cryptography, GoLang, Java, NodeJs, Python, SDLC, Spring Boot
Must have 10+ yrs of Blockchain developer experience
Must have 5+ Java SpringBoot experience
Must have SDLC experience
Must be able to code in Solidity, Java, NodeJs, Python, GoLand, and Rust
Must have outstanding understanding of data structures and algorithms
Education:
• Bachelor'sdegreeinInformationTechnologyorComputerScience
RequiredQualifications:
• JavaSpringbootexperienceisamust
• ExperienceworkingasaBlockchainDeveloperorasimilarroleintheITdepartment
• Experienceleadingtoacompleteunderstandingofthesoftwaredevelopmentlifecycle
• Expertiseinbuildingrobustsystems(resiliency,faulttolerance,scalability)atscale
• DemonstrateexcellentabilitytocodeinvariouslanguagessuchasSolidity,Java,NodeJs,Python,GoLang,Rustandothers
• Experienceinworkingwithvarioustypesofcryptographytosecuredata
• Outstandingunderstandingofdatastructuresandalgorithms
• Knowledgeofvariouscybersecurityguidelinesandprotocols
• Strongunderstandingandknowledgeofvariouskindsofcyberattacks
• Abilitytoworkinateamorindividuallyasandwhenrequired
• Possessexcellentcommunicationskills
• Havekeeneyefordetails
• Managemultipleprojectssimultaneously
PreferredQualifications:
• ExperienceworkingwithCloudplatformssuchasMSAzure,AWSpreferred
SeniorBlockchainDeveloperSummary:
• AsaBlockchainDeveloper,youareresponsiblefordevelopingapplicationfeaturesandinterfacesusingblockchaintechnology
• Youwillbealsoresponsiblefordesigninganddevelopingasystemthatissecure,reliableandscalable
• Yourprimarygoalforthisjobrolewillbedesigning,implementing,andadministeringasecureblockchainnetwork
• Youshouldbehighlyknowledgeableaboutvariousblockchaintechnologies
• Youshouldalsohaveanexcellentunderstandingofcryptographyanditsusesintheblockchainnetwork
• Youshouldbeknowledgeableaboutpacking&deployingappsviaCI/CDpipelinestoacloudplatform
JobResponsibilities:
• Architect,developanddeploydecentralizedapplicationsprovidingpermissionedaccesstodataatboththesmartcontractandprotocollevel
• Develop&InteractingwithSmartContractsimplementedonmostcommonBlockchain/DLTtechnologyplatforms
• Oracledevelopment(connecting"off-chain"datatotheblockchain)
• ConstructintegrationlibrariestointerfacewithourserverandAPIs
• Collaboratecloselywiththerestoftheengineeringteamtoreviewapplicationrequirements,helpplanimplementationdetailsandestimatedeliverytimelines
• Providementorshiptoyourpeersintheengineeringteamthrougheducationonbestpractices
• Preparingdocumentationontheblockchaindevelopmentprocesses
• Adheringtoalltherulesandregulationsofdataprotectionfordigitalpayments
• Stayingupdatedwiththelatestcryptotechnologiesfordataprotection
Sourced by ZipRecruiter
In 2007, Our journey began as pioneers in the realm of technology and security. Since then, InterSources Inc. has evolved into a trusted partner, leading the way in Cloud Security, Cybersecurity, PLG Consulting, Digital Transformation, and Professional Services. With a rich history of excellence and a forward-thinking approach, we continue to secure your digital future and drive innovation. Explore our legacy of success and discover the possibilities that lie ahead.
51 - 200 Employees
Fremont, CA, US
2007
