1w
Save
Mark Applied
Hide
API Developer
Pittsburgh or Cleveland or Dallas or Birmingham or Phoenix or Denver
OnsiteFull Time
8+ YOE8+ years Java/J2EE experience building RESTful APIs using Spring Boot and microservices; experience with DevOps, Kafka, IBM MQ, SQL/NoSQL and cloud platforms required.
Java, J2EE, Spring Boot, Microservices, REST API, Angular, XML, JSON, Swagger, Jenkins, uDeploy, GIT, Kafka, IBM MQ, SQL, No Sql, AWS, Azure, GitHub, CI/CD, React, JavaScript, HTML, CSS, JSON Web Token (JWT), UML, XPath
14h
Save
Mark Applied
Hide
API Engineer
Boulder, Colorado, United States
$80k-$110k/yr RemoteFull Time
1+ YOEMaster's in CS or related preferred, or Bachelor's plus 1–2 years building APIs/services; proficiency with REST/JSON, schema/versioning, Git, Linux, testing, and a modern language (Python preferred).
OpenAPI, JSON Schema, GeoJSON, GeoParquet, Docker, Terraform, CloudFormation, GitHub Actions, Git, Linux, Python, R, Shiny, Rust
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
1mo
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
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
4w
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
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
3w
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
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
2mo
Save
Mark Applied
Hide
Agentic AI Software Engineer
King of Prussia or Aurora
$82k-$172k/yr OnsiteFull Time
5+ YOE5+ years software engineering with Python; BS in CS or related field; TS/SCI clearance with CI polygraph; experience building microservices and REST APIs.
Python, Git, GitLab, GitHub, Jira, Confluence, RESTful APIs, Microservices, CI/CD
2mo
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
R&D Engineer SW Quality 3
Broomfield, Colorado, United States
$91k-$146k/yr OnsiteFull Time
8+ YOEBachelor's in engineering, 8+ years software testing experience, strong automation (Python), Linux/Windows/VMware skills, networking and SAN knowledge, JIRA and REST API experience.
Python, Linux, Windows, VMware, JIRA, REST API, Claude Code, Gemini AI
3mo
Save
Mark Applied
Hide
Senior Software Developer
Louisville, Colorado, United States
$118k-$144k/yr OnsiteFull Time
5+ YOE5+ years of professional software development; proficient in Python; strong SQL and relational DB design; Git and CI/CD; REST APIs; testing with pytest; good communication.
Python, SQL, Git, pytest, REST API, JavaScript, TypeScript, Node.js, CI/CD, GitLab CI
1mo
Save
Mark Applied
Hide
Sr Automation Engineer – New Glenn
Seattle or Denver or Los Angeles or Florida
$182k-$277k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
8+ YOEBachelor's in engineering/computer science or equivalent, 8+ years software/automation/data/engineering experience, experience designing automation tools, familiarity with React, TypeScript, Kubernetes, Databricks, SQL, Python, REST APIs, and AWS.
React, TypeScript, Kubernetes, Databricks, SQL, Python, REST APIs, AWS, Git, SVN, Gitlab CI
3mo
Save
Mark Applied
Hide
AI Engineer
Denver, Colorado, United States
$110k-$150k/yr HybridFull Time
4+ YOEDevelop AI solutions using pretrained models and Copilot; deploy, integrate AI into workflows; Azure and Python skills; 4+ years software engineering; GenAI LLMs knowledge.
Python, PySpark, SQL, Azure AI Platform, Databricks, TensorFlow, PyTorch, Power BI, Copilot Studio, Azure Functions, API connections
1mo
Save
Mark Applied
Hide
Senior Electrical Engineer
The Woodlands or Peachtree Corners or Savannah or Tampa or Englewood
OnsiteFull Time
10+ YOEBachelor's in Electrical Engineering or Technology, PE license (or in progress), 10+ years electrical experience, knowledge of IEEE/API/NFPA, experience with fueling/oil & gas/energy projects, AutoCAD/ETAP/SKM proficiency, client interfacing and mentorship experience.
AutoCAD, ETAP, SKM, PLC, SCADA, EFSO/ESD
Explore Jobs