PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
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
3w
Save
Mark Applied
Hide
API Engineer (Remote)
Stafford or Alaska or California or Colorado or Connecticut or District of Columbia or Hawaii or Louisiana or Massachusetts or Minnesota or Missouri or Nebraska or Nevada or New Hampshire or New Jersey or New Mexico or New York or North Dakota or Oregon or Puerto Rico or Rhode Island or Vermont or Washington or Wyoming or United States
RemoteFull Time
No specific skills, education, or experience listed in the job text; posting states remote US eligibility and includes benefits information.
1mo
Save
Mark Applied
Hide
API Integrations Developer
Denver, Colorado, United States
$119k-$133k/yr HybridFull Time
4+ YOEBachelor's in CS or related required; 4+ years backend experience (Python, Node.js, Java, or .NET); HL7 FHIR and X12 EDI experience; strong REST API, security (OAuth2, JWT, mTLS), SQL, and HIPAA knowledge; experience with cloud and CI/CD.
Python, Flask, FastAPI, Django, Node.js, Java, .NET, OpenAPI/Swagger, Postman, X12 EDI, HL7 FHIR, HL7 v2, CDA, EHRs, Docker, Kubernetes, GitHub Actions, Azure DevOps, Jenkins, ELK, Datadog, Prometheus, Grafana, AWS, Azure, GCP, SQL Server, Snowflake, Data Vault 2.0, pytest, JUnit, Pact, k6, Locust, OAuth2, JWT, mTLS, RBAC/ABAC, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Outlook, Microsoft SharePoint
3w
Save
Mark Applied
Hide
Senior Software Engineer (Hogan API)
Hopkins or Atlanta or Chicago or Charlotte or Englewood or Brookfield or Irving
$120k-$141k/yr HybridFull Time
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
1mo
Save
Mark Applied
Hide
Senior Platform Engineer, AI
Denver or Long Beach
$170k-$275k/yr HybridFull Time
5+ YOE5+ years software/cloud/DevOps experience; production development in Python/TypeScript/Java; experience with LLM APIs, prompt engineering, RAG, agent frameworks, API integrations; ability to obtain Top-Secret clearance and U.S. citizenship or equivalent status.
Python, TypeScript, Java, CrewAI, Pydantic AI, API, webhooks, MCP, Retrieval-Augmented Generation (RAG), AWS, Azure, GCP, AWS GovCloud, Azure Government, FedRAMP, NIST 800-53, IL4, IL5
1mo
Save
Mark Applied
Hide
Senior Software Engineer – API & Cloud Integrations (Java, AWS)
Denver or Cedar Rapids or Philadelphia
$94k-$120k/yr HybridFull Time
3+ YOEBachelor’s or equivalent experience; 3+ years Core Java; experience with Spring, microservices, APIs, databases (RDBMS/NoSQL), cloud (AWS/Azure), CI/CD, and integration frameworks; strong analytical and communication skills.
Java, Core Java, Spring Framework, Spring Boot, Spring MVC, J2EE, Entity Framework, IIS, Swagger, Swagger API, OData, .NET API 2, .NET API Core, AutoMapper, MS Cosmos DB, Microsoft Cosmos DB, Apache Cassandra, Amazon DynamoDB, AWS, Azure, EC2, ECS, S3, Kinesis, Microsoft VMs, Microsoft Blob, Microsoft Data Factory, Microsoft SQL Data Warehouse, Microsoft ARM Templates, Microsoft Event Hubs, Visual Studio, Git, Bitbucket, Maven, Jenkins, Nexus, SQL Management Studio, NUnit, Ajax, MS HPC, SageMaker, Spark, API Gateways, Apache Camel, Zookeeper, Kafka, Docker, OpenShift, Kubernetes, Angular, React, Vue.js, ASP.NET MVC, HTML, JS, CSS
1mo
Save
Mark Applied
Hide
Senior Product Systems Engineer
Golden or San Francisco or Toulouse
$160k-$210k/yr OnsiteFull Time
Strong systems engineering background across software and hardware; experience defining architecture, interfaces, and requirements; expertise with distributed systems and APIs; strong communication and documentation skills.
CONOPS, ICDs, OBSW, APIs
2w
Save
Mark Applied
Hide
Director, Forward Deployed Engineer
Denver, Colorado, United States
$134k-$269k/yr OnsiteFull Time
Strong software engineering fundamentals, cloud (AWS/Azure/GCP) experience, Python/SQL/APIs and integration skills, data/AI/ML deployment experience, client-facing consulting, executive communication, and willingness to travel/embed with clients.
Python, SQL, APIs, AWS, Azure, GCP, ERP
3w
Save
Mark Applied
Hide
Platform Solution Engineer (MANTL)
United States or California or Colorado or Connecticut or Maryland or Nevada or New Jersey or New York or Ohio or Rhode Island or Washington or Dallas
$100k-$120k/yr RemoteFull Time
3+ YOE3+ years in technical implementation/solution engineering for enterprise SaaS; proficiency with APIs, JSON, REST APIs, Postman; strong documentation and project management skills.
JSON, Postman, REST APIs, JIRA
2d
Save
Mark Applied
Hide
Hydraulics Engineer
Englewood or Billings or Casper or Houston
$90k-$120k/yr OnsiteFull Time
3+ YOEBS engineering, FE required, willingness to attain PE, 3+ years experience, valid driver's license, knowledge of ASME/API/CFR195, and experience with pipeline/facility hydraulic modeling.
Synergi Pipeline Simulator (SPS), Applied Flow Technology (AFT), AFT Fathom, AFT Impulse, AutoDesk, Microsoft Office
1mo
Save
Mark Applied
Hide
AI Operations Engineer - Supply Chain
Centennial, Colorado, United States
$100k-$135k/yr HybridFull Time
5+ YOE5+ years experience applying automation, data engineering, or AI/ML to operations; production deployment experience; integration with ERP and enterprise systems; strong Python, API, and data pipeline skills; supply chain/manufacturing domain knowledge.
Python, APIs, data pipelines, automation tools, ERP, AI/ML
2w
Save
Mark Applied
Hide
Senior Facilities Engineer
Denver or Williston
$185k-$230k/yr OnsiteFull Time
10+ YOEBachelor's in engineering, 10+ years facilities engineering in oil & gas, experience leading capital projects, proficiency with AFT, HYSYS, Piper, Pipesim, AutoCAD, valid driver's license, familiarity with API/ASME/NFPA and PHA/MOC.
AFT, HYSYS, Piper, Pipesim, AutoCAD
1mo
Save
Mark Applied
Hide
Principal Production Engineer (New York, NY, US, 10036)
New York City or California or Colorado or Washington
$203k-$305k/yr OnsiteFull Time
10+ YOE10+ years in integration/tools engineering, expert Python, experience shipping production-grade web services, deep API/auth/SSO and data systems knowledge, strong cross-functional communication.
Python, Go, TypeScript, C++, MCPs, APIs, SSO, VPC, AI/ML, LLM
1w
Save
Mark Applied
Hide
Software Engineer
Fairfax or Austin or Melbourne or Denver
$99k-$207k/yr HybridFull Time
5+ YOEU.S. citizen with bachelor\u0002s degree in STEM and 5+ years software engineering experience; ability to obtain DoD clearance; experience with distributed systems, APIs, CI/CD, and AI-assisted development tools.
Claude Code, AI agents, CI/CD, DevSecOps
1mo
Save
Mark Applied
Hide
Sr. Engineer - Oil & Gas
Lisle or St. Louis or Charlotte or Indianapolis or Greenwood Village
HybridFull Time
5+ YOEBS in engineering (ABET), 5-15 years oil/gas engineering experience, 3+ years project management, knowledge of DOT/API/ANSI/ASME standards, Microsoft Word/Excel/PowerPoint/Project proficiency, valid driver’s license, willing to travel.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Project
1w
Save
Mark Applied
Hide
Forward Deployed Engineer
New York City or Denver
$204k-$240k/yr OnsiteFull Time
Legora: AI workspace for legal document research and drafting.
Experienced generalist engineer with backend, APIs, auth (SAML/OIDC), and integration experience; customer-facing technical delivery skills and strong communication.
SAML, OIDC, REST, iManage, NetDocuments, Microsoft SharePoint
1mo
Save
Mark Applied
Hide
Senior Systems Engineer
El Paso County or Huntsville
$112k-$196k/yr OnsiteFull Time
7+ YOEBS in STEM, 7+ years in systems engineering/software integration/enterprise architecture, active Secret clearance, API integration, MBSE/SysML, cloud/container experience, dashboard and DevSecOps familiarity.
SysML, Cameo, MagicDraw, Sparx EA, Rhapsody, Power BI, Tableau, Grafana, Kibana, Kubernetes, GitLab, Terraform, CI/CD, Link 16
1mo
Save
Mark Applied
Hide
Pipe Stress Engineer (41488)
Tempe or San Francisco or Seattle or Portland or Denver or Holladay or Austin or United States or Canada
$70k-$96k/yr RemoteFull Time
2+ YOEBachelor's in Mechanical Engineering, ≥2 years engineering experience, knowledge of pipe stress analysis and support design, familiarity with ASME/ANSI/API, strong communication and analytical skills.
AutoPIPE, Caesar II, Navisworks, AutoCAD
1mo
Save
Mark Applied
Hide
Principal Systems Engineer (TS/SCI with CI Polygraph)
Aurora, Colorado, United States
$225k-$300k/yr OnsiteFull Time
15+ YOE15–20 years' related experience; TS/SCI with CI Poly; BS in engineering or related field; MBSE/SysML; API design; cloud/hybrid integration; governance; security/compliance.
MBSE/SysML, JIRA, Confluence, System modeling, API design, Configuration management, Enterprise architecture frameworks, Cloud/hybrid integration
1w
Save
Mark Applied
Hide
Engineer - Pipeline Safety Management Systems
Denver or Saint Paul
$70k-$129k/yr OnsiteFull Time
0+ YOEABET-accredited Bachelor's in Engineering required; 0–5+ years experience depending on level; EIT/FE preferred/required; PE may be required; familiarity with API RP 1173.
API RP 1173
1w
Save
Mark Applied
Hide
Senior Backend Engineer
Colorado Springs, Colorado, United States
$160k-$185k/yr HybridFull Time
5+ YOE5+ years software engineering experience; strong Python, FastAPI, Postgres, AWS, Docker, Kubernetes, Terraform; cloud architecture, API/backend development, security focus, mentorship and customer integration skills.
Python, FastAPI, Postgres, AWS, Docker, Kubernetes, Terraform
Explore Jobs
Expand Your Job Search
Top Cities in Colorado for API Engineer
- API Engineer jobs in Denver, CO
- API Engineer jobs in Colorado Springs, CO
- API Engineer jobs in Aurora, CO
- API Engineer jobs in Fort Collins, CO
- API Engineer jobs in Lakewood, CO
- API Engineer jobs in Thornton, CO
- API Engineer jobs in Westminster, CO
- API Engineer jobs in Arvada, CO
- API Engineer jobs in Centennial, CO
- API Engineer jobs in Pueblo, CO
- API Engineer jobs in Boulder, CO
- API Engineer jobs in Greeley, CO
- API Engineer jobs in Longmont, CO
- API Engineer jobs in Loveland, CO
- API Engineer jobs in Broomfield, CO
- API Engineer jobs in Grand Junction, CO
- API Engineer jobs in Castle Rock, CO
- API Engineer jobs in Commerce City, CO
- API Engineer jobs in Parker, CO
- API Engineer jobs in Littleton, CO