523 api developer jobs at 283 companies in Gary, IN

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
2w
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Senior API Integration Engineer
Chicago, Illinois, United States
$153k/yr OnsiteFull Time
Prolaio
Prolaio: Providing a clinical intelligence platform for precision cardiology.
5+ YOEBachelor's degree, 5+ years backend experience (2+ years in integrations), strong Kotlin or Python skills, integration architecture and API expertise, GCP/Docker/Kubernetes experience, observability and security/compliance knowledge (SOC2, HIPAA).
Kotlin, Python, RESTful APIs, Google Cloud Platform (GCP), Docker, Kubernetes (k8s), BigQuery, Dagster, Datadog, Prometheus, Grafana, HL7, FHIR, DICOM, NetSuite, SAP, Airflow, Prefect, Superset, Looker
1d
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Lead API Support Engineer - 69420501
Blaine or Atlanta or Chicago
$112k-$132k/yr HybridFull Time
Cognizant
CognizantNASDAQ: CTSH: Provides IT consulting and technology services to global enterprises.
Extensive hands-on experience with Google Cloud Platform and Apigee, deep API and integration expertise, strong security and troubleshooting skills, and ability to work across distributed teams.
Google Cloud Platform (GCP), Apigee Edge, Apigee X, Apigee Hybrid, Apigee Developer Portals, CI/CD
4w
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Software Engineer, API
Chicago, Illinois, United States
$108k-$110k/yr HybridFull Time
Supernova Technology
Supernova Technology: Provides cloud-based digital software for securities-based lending.
3+ YOEBachelor's in CS/Engineering, 3+ years software development with API design, experience with Java, Spring Boot, AWS, OAuth/JWT, REST, Git, CI/CD, and testing frameworks.
RESTful Services, OAuth, JWT, Java, Spring Boot, AWS, Git, CI/CD
1mo
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Third Party API - Technical Lead
Hartford or Columbus or Charlotte or Chicago
$135k-$203k/yr HybridFull Time
The Hartford
The HartfordNYSE: HIG: Provides business and personal insurance, group benefits, and investments.
8+ YOE8+ years software engineering/integration/API experience, 3+ years as a technical lead/product owner, RESTful API design, API gateways and security (OAuth, JWT, mTLS), cloud (AWS preferred), SAFe Agile, AI familiarity, strong communication, US work authorization required.
API gateways, OAuth, JWT, mTLS, AWS, SAFe Agile, AI
3w
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Senior Software Engineer (Hogan API)
Hopkins or Atlanta or Chicago or Charlotte or Englewood or Brookfield or Irving
$120k-$141k/yr HybridFull Time
U.S. Bank
U.S. BankNYSE: USB: Provider of personal, business, and institutional financial services.
5+ YOEBachelor's degree or equivalent and 5+ years relevant experience. Experience with mainframe/Hogan development (COBOL, JCL, CICS), APIs, system design, testing, security, and cross-team collaboration; Scrum familiarity.
Hogan COBOL, JCL, CICS, JSON, Splunk, IMS Database, GitLab, IDz/RDz (IBM Developer for zOS), Jira
3mo
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Integration Engineer (EDI/API)
Chicago or Marietta or Naperville
$80k-$95k/yr OnsiteFull Time
RXO
RXONYSE: RXO: Provide asset-light transportation and freight brokerage solutions.
1+ YOEBachelor's in IT/MIS/CS; 1 year integrating roles; experience with EDI and API platforms (Apigee, Boomi, IBM Sterling File Gateway, MQ); data transformation (XML, XPATH, XSLT); AS2, SFTP, JMS; cloud (Google Cloud); IPaaS (Boomi, MuleSoft); Sterling Integrator Map Editor preferred.
EDI, API, Apigee, Boomi, IBM Sterling File Gateway, MQ, XML, XPATH, XSLT, AS2, SFTP, JMS, iPaaS, MuleSoft, Google Cloud, Sterling Integrator Map Editor
4w
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Senior Software Engineer - Customer Integrations (API)
United States or New York City or Dallas or Austin or Houston or Chicago or Nashville or Miami or Atlanta
$140k-$160k/yr RemoteFull Time
TheGuarantors
TheGuarantors: Provides lease guarantees and security deposit alternatives for rentals.
3+ YOE3+ years building backend services with Go/Java/Python/C#; strong API design, SQL/PostgreSQL, cloud (AWS/Azure/GCP/OCI) and Terraform experience; professional software engineering experience and strong communication/system design skills.
Go, Java, Python, C#, SQL, PostgreSQL, AWS, Azure, GCP, OCI, Terraform
3w
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Cloud & API Platforms Practice Lead (AVP)
St. Louis or Chicago or Boston or Houston or Dallas or Irvine or Minneapolis or Detroit or Alpharetta or New York City
$150k-$250k/yr OnsiteFull Time
Perficient
Perficient: Provides digital transformation and AI consulting for global enterprises.
10+ YOE5+ Mgmt10–15 years experience with 5+ years leading practices; expertise in Platform API and IBM Cloud solutions, hands-on consulting, GTM strategy, partner/channel relationships, AI delivery knowledge, and willingness to travel.
MuleSoft, Apigee, Boomi, Workato, TIBCO, Terraform, IBM Cloud
2mo
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Senior Lead Software Engineer - Java, Spring Boot, API
Chicago, Illinois, United States
$147k-$225k/yr OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
5+ YOE5+ years Java development; Spring Boot; WebFlux; SDLC; CI/CD; security; distributed systems; hands-on coding; agile practices.
Java, Spring Boot, WebFlux, CI/CD, Cloud, Software Development Life Cycle
1w
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Unqork Developer
Chicago, Illinois, United States
$110k-$140k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
6+ YOEUnqork development experience, Unqork Certified Associate Configurator, API and data integration knowledge, AMS/production support, cloud experience (Azure/AWS), stakeholder communication; 6+ years experience.
Unqork, API, Azure, AWS
1w
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Software Engineer
Peoria or Chicago
$98k-$158k/yr OnsiteFull Time
Caterpillar
CaterpillarNYSE: CAT: Manufactures construction equipment, mining machinery, and industrial engines.
2+ YOE2–4 years developing enterprise-grade frontend and backend applications; strong SDLC, APIs/integration, testing, and collaboration skills; bachelor’s degree in CS/Engineering preferred.
Next.js, React, TypeScript, Java Spring Boot, REST APIs, APIs, Azure, AWS, ADO, GitHub Actions, Jenkins, Copilot CLI, Claude Code
3w
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Software Engineer, Enterprise Item
Illinois or United States or Canada or Chicago or Los Angeles or San Francisco
RemoteFull Time
Crate and Barrel
Crate and Barrel: Retails furniture, kitchenware, and home decor products.
2+ YOE2+ years software development experience; designing and supporting APIs, microservices, and integrations. Proficiency with C#/.NET, REST APIs, SQL/NoSQL, cloud platforms, CI/CD, Agile; strong problem-solving and communication.
APIs, microservices, C#, .NET, REST APIs, AWS, Azure, GCP, SQL, NoSQL, CI/CD, Product Information Management (PIM)
3w
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Senior MES Developer
Hanoi or Hung Yen or Lisle
OnsiteFull Time
Koch Inc.
Koch Inc.: Operates global manufacturing, refining, and industrial technology businesses.
6+ YOE6+ years software development (4+ backend) with strong Java 17+/Spring Boot, REST API, high-concurrency transactional systems; experience with Progress/PostgreSQL, Kafka, Angular, observability, performance tuning, and CI/CD tools (Jira, GitLab).
Java 17+, Spring Boot, REST API, Progress, PostgreSQL, Kafka, Angular, TypeScript, Opcenter, Camstar, SAP, WMS, DataHub, Prometheus, Grafana, Playwright, Jira, GitLab
1mo
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Sr. Software Engineer
Oak Brook, Illinois, United States
OnsiteFull Time
The Joint Commission
The Joint Commission: Accredits and certifies US healthcare organizations to ensure quality.
5+ YOEBS in CS or related field or equivalent; 5+ yrs distributed multi-tier software development; strong comms; lead experience; proficient in C#/NET, HTML/JS; SQL Server; API development; Agile; OOP/SOLID.
C#/.NET, HTML, JavaScript, jQuery, Angular 2+, Microsoft SQL Server, Entity Framework, API development, Git, TFVC, Visual Studio, Azure, AWS, Azure DevOps, N Telerik Kendo UI, NativeScript, Xamarin, Windows UWP, OOP, SOLID
1mo
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Senior Software Engineer
Chicago, Illinois, United States
$153k/yr RemoteFull Time
Morningstar
MorningstarNASDAQ: MORN: Provides independent investment research, financial data, and management services.
5+ YOERequires advanced Python development, relational/vector databases, cloud services, and AI/ML concepts with REST APIs and CI/CD.
Python, FastAPI, Flask, REST API, PostgreSQL, SQLAlchemy, Weaviate, Pinecone, Pandas, Plotly, Matplotlib, AWS, S3, RDS, API Gateway, Lambda, Redis, SQS, Celery, Git, CI/CD, GraphQL, OpenAI, Anthropic, MistralAI, UML
3d
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Senior Web Developer
Chicago, Illinois, United States
$100-$115/hr HybridFull Time
CAI
CAI: Provides global IT services and contingent workforce management solutions.
7+ YOEBachelor's in CS or related,7+ years developing Java-based web and API solutions with Angular 13 and Spring stack; strong API, database, and client-facing skills.
Java, Angular 13, Spring Boot, Spring Data JPA, Spring Framework, Spring Security, Hibernate, Maven, Bootstrap, Oracle, JBoss, GitLab, SQL Developer, Toad, JIRA, JBoss Cruise Control, Eclipse, SOAP UI, Postman, REST
1mo
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Developer I
Gurugram or Chicago or Houston
OnsiteFull Time
United Airlines
United AirlinesNASDAQ: UAL: Operates a global network of passenger and cargo flights.
3+ YOEGraduate engineer with 3+ years development experience, foundational .net and JavaScript/React skills, exposure to cloud-native apps, REST APIs, RDBMS, Agile, and strong communication.
.NET, JavaScript, React, PostgreSQL, Redis, Kafka, REST APIs, AWS Lambda, AWS ECS, AWS EKS, CI/CD
3mo
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Software Engineer
Westchester, Illinois, United States
$79k-$99k/yr HybridFull Time
Ritchie Bros.
Ritchie Bros.NYSE: RBA: Conducts global auctions for heavy equipment and industrial assets.
5+ YOE5+ years .NET development in multi-team environment; .NET, ASP.NET, C#, MVC, Web API, SQL Server/MySQL; HTML5/CSS/JS; Agile; unit & automation testing; fault-tolerant, scalable software.
.NET, ASP.NET, C#, MVC, Web API, SQL Server, MySQL, HTML5, CSS, JavaScript, jQuery, Bootstrap, JSON
1mo
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Senior Developer
Columbus or Austin or Chicago or Detroit or Dallas or Houston
$57k-$113k/yr OnsiteFull Time
Huntington
HuntingtonNASDAQ: HBAN: Provides regional commercial, consumer, and mortgage banking services.
3+ YOE3+ years Java/J2EE development experience, Bachelor's degree or equivalent, REST API and JavaScript/Dojo proficiency, SQL skills, strong OOP and problem-solving, experience with enterprise integrations.
Java, J2EE, JavaScript, Dojo, SQL, RESTful APIs, IBM FileNet Content Management, IBM Case Manager, IBM BAW, WebSphere Application Server
1mo
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UIPath Engineer Lead
Northbrook, Illinois, United States
$116k-$174k/yr HybridFull Time
Medline
MedlineNasdaq: MDLN: Manufactures and distributes medical supplies and clinical solutions.
7+ YOE7+ years in software development, RPA with UiPath; Python/TypeScript; API integrations; cloud/enterprise systems; strong communication; ability to own projects.
UiPath, Python, TypeScript, APIs, Cloud services