API Developer III
Eliassen Group
Description Remote
Our client seeks an API Developer III to design, develop, and maintain APIs and integrations that support a broad digital ecosystem. The role will leverage Microsoft Azure services such as API Management, Application Gateway, and Logic Apps, plus C# .NET API applications, to deliver secure, scalable integrations across platforms including Salesforce, Workday, Microsoft Dynamics CRM and Commerce, Paycom, BlackLine, Jira, and ServiceNow. The developer will collaborate with cross-functional IT teams, contribute to reusable API assets, participate in planning with project leadership, and uphold security, performance, and documentation standards.
We can facilitate w2 and corp-to-corp consultants. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.
Rate: $75.00 to $80.00/hr. w2
JN -
Responsibilities
Our client seeks an API Developer III to design, develop, and maintain APIs and integrations that support a broad digital ecosystem. The role will leverage Microsoft Azure services such as API Management, Application Gateway, and Logic Apps, plus C# .NET API applications, to deliver secure, scalable integrations across platforms including Salesforce, Workday, Microsoft Dynamics CRM and Commerce, Paycom, BlackLine, Jira, and ServiceNow. The developer will collaborate with cross-functional IT teams, contribute to reusable API assets, participate in planning with project leadership, and uphold security, performance, and documentation standards.
We can facilitate w2 and corp-to-corp consultants. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.
Rate: $75.00 to $80.00/hr. w2
JN -
Responsibilities
- Design, develop, and maintain APIs and integrations using Azure services including APIM, Logic Apps, Application Gateway, and C# .NET API applications.
- Provide guidance and mentorship to other developers and promote API design best practices.
- Collaborate with IT and business stakeholders to gather requirements and translate them into technical solutions.
- Plan and schedule API development work with Project Managers and Scrum Masters.
- Monitor, troubleshoot, and optimize integration performance and reliability.
- Maintain technical documentation for APIs, integration workflows, and development standards.
- Ensure security, scalability, and compliance in partnership with information security and senior developers.
- Participate in code reviews, testing, and deployments. Implement CI/CD and automated testing to reduce regressions.
- Partner with QA to validate new development. Create UAT testing plans for end-to-end integrations.
- Build a reusable API library in collaboration with Applications and Data teams to reduce point-to-point solutions.
- 5+ years of development experience with languages such as C#.
- 4+ years of API development and system integration experience.
- 2+ years of hands-on experience with Microsoft Azure integration services.
- Experience with enterprise platforms such as Salesforce, Workday, and Microsoft Dynamics preferred.
- Proficiency in C# and .NET for API development.
- Understanding of Azure APIM, Logic Apps, and Application Gateway.
- Experience with RESTful, SOAP, Streaming, and Bulk APIs with security best practices.
- Familiarity with DevOps and CI/CD pipelines; experience with Jira, Git, and Azure DevOps.
- Strong analytical, problem-solving, time management, and attention to detail.
- Ability to manage multiple priorities and collaborate effectively.
- Bachelor's degree in Computer Science, Information Technology, or a related field required.
Vacancy posted 2 days ago
Similar jobs that could be interesting for youBased on the API Developer III in Columbia, SC vacancy
- ...Developer IIIDP Professionals is seeking a Developer III for an opportunity with our client in the healthcare insurance industry.Work location: Hybrid in Columbia... ....Experience working with and integrating external APIs (particularly restful APIs).Containerization experience...SuggestedWork experience placementSecond job
- ...BlueCross BlueShield of South Carolina is seeking a Developer III to join our DevOps-focused Monitoring, Observability, & Pipeline team in Columbia. You will support and enhance the tools that power our development pipeline, writing scripts, building tests, and automating...Suggested
- ...Systems Programmer III – DB2 / MainframeThis position is responsible for the installation, maintenance, optimization, and support of IBM DB2 for z/OS on the Mainframe platform. The role supports critical business applications and enterprise database environments, including...SuggestedWork experience placementLocal areaFlexible hours
- ...Job Description Job Description SYSTEMTEC is seeking a Developer III - Full Stack Python/JSP for a hybrid opportunity for candidates... ...programming languages. Experience integrating external APIs, particularly APIs. Familiarity with containerization technologies...SuggestedFull time
- ...SYSTEMTEC is seeking a Developer III - C# / .NET for a hybrid opportunity for candidates in Columbia SC. Candidate will serve as a hands... ...development administration integrations or workflow automation. REST API development and system integration. GitHub and source-...SuggestedFull timeTemporary workRemote workMonday to FridayWeekend work
- ...Systems Programmer IIIHansen Talent Group is seeking a Systems Programmer III with strong experience supporting IBM DB2 for z/OS and enterprise mainframe environments.The Systems Programmer III will support the installation, maintenance, performance, and availability of...
- ...Description Job Description SYSTEMTEC is seeking a Network Engineer III for a remote direct hire opportunity for candidates working EST... ...network automation and scripting using Python, PowerShell, REST APIs, or Ansible. Knowledge of enterprise voice, unified...Full timeRemote work
- ...Certified Surgical Tech III Lead - Women's CenterUnder general supervision, the Certified Surgical Technologist III functions as a member of the operating room team to prepare sterile supplies and equipment used in the surgical procedures and perform appropriate room duties...
- ...Job Description SummaryUnder general supervision, the Certified Surgical Technologist III functions as a member of the operating room team to prepare sterile supplies and equipment used in the surgical procedures and perform appropriate room duties involved with direct...Work experience placementShift workRotating shift
- ...Job Title - Senior API Platform Software Engineer Locations: Lafayette, LA | Knoxville, TN | Birmingham, AL | Columbia, SC... ...highly distributed, AWS based environment. The engineer will develop secure, scalable RESTful APIs and microservices while contributing...Full timeLocal area
- ...Job Description Job Description DPP is seeking a Developer III for an opportunity with our client in the healthcare insurance industry... ...language. Experience working with and integrating external APIs (particularly restful APIs). Containerization experience (...Contract workWork experience placementSecond job
$150.24k - $169.15k
...analyzing client requirements, project objectives, and constraints to develop scalable, secure, and effective technical solutions.... ...technologies. Programming and Technical Tools: Experience with APIs and programming languages or technologies such as TypeScript and...Full timeRemote work- ...Job Description Job Description Position Overview Seeking an IS – Developer III to develop, enhance, test, and support mission-critical healthcare claims processing applications and related business functions. Work Arrangement ~ Partial Onsite: Tuesday,...Work experience placementFor subcontractorSecond jobImmediate startMonday to FridayAfternoon shift
- ...Insurance Firm is urgently looking to hire a Lead Full Stack Python Developer Lead Full Stack Python Developer Long Term Contract with... .... Designs and develops scalable back-end services and APIs primarily in Python, while contributing to front-end interfaces...Long term contractImmediate startRemote work
- ...CertificationEducationLicenseOtherSkill 3 Years of Experience developing modern web applications using PrimeNG, TypeScript, JavaScript,... ...3 Years of Experience developing RESTful API's and backend services using ASP.NET Core AND C# CertificationEducationLicenseOtherSkill...
- ...store, with every app on the same stack, sharing auth and access control, deployable in one click. And because every app is also an API and MCP server, the apps customers build today become building blocks for the ones they build tomorrow. Founded by the team behind...
- ...iAdeptive Technologies is looking for a Lead Portal Engineer to own a user-facing portal end-to-end — the front-end architecture, the APIs and services behind it, and the human-centered design process that keeps it usable — on a modern, FedRAMP-authorized platform...Full timeContract workWork experience placementWork at officeRemote work
- ...Job Description Job Description DPP is seeking a Systems Programmer III for an opportunity with our client in the healthcare insurance industry. Work Location: Hybrid in Columbia, SC; onsite Tues, Wed, Thurs Duration: 11 months Terms: W2 Contract...Contract workWork experience placementSecond job
$83.43k - $222.48k
...knowledge of data modeling and database design principlesKnowledge of API integrationAbility to architect end-to-end solutions that align... ...cleansing strategiesPreferred Education and ExperiencePlatform Developer 2 CertificationExperience with consultingProven experience as...Hourly payFull timeTemporary work- ...Salesforce DeveloperCGI has an immediate need for a Senior Salesforce Developer to join our financial services team in Belton, TX, Columbia, SC... ...Objects, Apex, Triggers, Web Services, Visualforce, REST APIs, SOAP Web Services and migration tools.Strong client management...Immediate start
$97.3k - $138.6k
...Senior Salesforce DeveloperWe are looking for a Senior Salesforce Developer to support the development and implementation of Salesforce... ...manipulation. Experience implementing integrations using REST/SOAP APIs and OAuth. Experience integrating Salesforce with external...- ...focus on AI and agentic AI solutions. Evaluate applications, APIs, cloud platforms, SaaS solutions, and distributed systems to... ...multiple security initiatives across IaaS, SaaS, and internally developed applications. Extensive experience with security architecture...Remote work
$70k - $190k
...Best Places to Work 2026! Belay Technologies is seeking a Web Developer to join our intel team. Candidates should have the following qualifications... ...applications interfacing with REST-based APIs/services in Apache Tomcat/Java or NodeJS.JavaScript and Front-end...Contract workWork experience placementFlexible hours- ...TECH LEAD VEEVA VAULT DEVELOPER Location: Remote | Type: Contract About Newpage Solutions Newpage Solutions is a global digital health... ...practices. Build, support, and troubleshoot integrations using Vault APIs and ensure reliable data flows across connected systems. Manage...Contract workRemote work
- ...Senior AWS Python Developer / PySpark Data EngineerWe are looking for a Senior Python + PySpark Data Engineer with strong AWS big data... ...joins, and recursive CTEs.Experience developing and consuming REST APIs and integrating applications with external services and data...
- ...submit your resume. Our direct client has an opening for a SR Java Developer 11660-1. This position is up to 12 months, with the option of... ...candidate will help implement cloud native solutions to support:Rest api and asynchronous event and message-based pub\sub integrations...Contract workRelocation
- ...Summary: Seeking a Full Stack Java Developer, who will be responsible for making an impact by designing, developing, and delivering... ...related technologies. • Build, enhance, and integrate RESTful APIs and microservices that support business-critical applications....
$139.5k - $185k
...the top global semiconductor companies in the world. We strive to develop a safer, healthier, greener, and smarter world, and our goal is... ..., Data Science, Generative AI, LLMs, LangChain, or Web Backend APIs.DO APPLY if you have 7+ years of experience building physical prototype...Temporary workFor contractorsWorldwideFlexible hours- ...Internet/Web Engineer – Consultant (Power Platform Developer)Work Location: Cayce, SC 29033 (Hybrid – 4 Days Onsite, 1 Day Remote)Duration... ...JavaScript form scriptingPerform integrations using REST APIs, Azure Functions, SharePoint, ERP/CRM systemsConfigure Dataverse...Remote workRelocation
$100.16k - $152.1k
...Impact You'll HaveGRVTY is seeking a Frontend Software Engineer to develop intuitive, reliable web applications that support mission-... ...cohesive, usable interfaces.Define, consume, and integrate REST-based APIs into frontend experiences.Investigate customer-reported issues,...Contract workWork at officeImmediate start2 days per week1 day per week
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to API Developer III. Be the first to apply!
Related searches
- remedy developer Columbia, SC
- remote ruby on rails developer Columbia, SC
- open source developer Columbia, SC
- full-stack ruby on rails developer Columbia, SC
- mainframe developer Columbia, SC
- programmer no experience Columbia, SC
- us-developer Columbia, SC
- gis developer remote Columbia, SC
- junior remote developer Columbia, SC
- entry level mulesoft developer Columbia, SC




