10 mainframe developer jobs at 7 companies in Denver, CO

1mo
Save
Mark Applied
Hide
Mainframe Systems Engineer III
Columbus or Hagerstown or Akron or Minnetonka or Denver
$70k-$140k/yr OnsiteFull Time
Huntington
HuntingtonNASDAQ: HBAN: Provides regional commercial, consumer, and mortgage banking services.
5+ YOE5+ years z/OS engineering, SMP/E expertise, mainframe networking (TCP/IP, SNA/APPN), encryption and certificate management, debugging/tuning, documentation, change control, and mentoring; bachelor\u0002s degree or equivalent experience.
z/OS, SMP/E, z/VM, IBM zEnterprise, IBM zSeries, zPCA, SAS/MXG, Intellimagic, zOSMF, WLM, Mainview, ChangeMan, TCP, UDP, ICMP, AT-TLS, IPsec, SNA/APPN
1w
Save
Mark Applied
Hide
Software Engineer Sr. - Mainframe & ITIL
Pittsburgh or Cleveland or Denver or Birmingham or Dallas or Phoenix
$86k-$158k/yr OnsiteFull Time
PNC Financial Services
PNC Financial ServicesNYSE: PNC: Provides banking, lending, and investment services to customers.
3+ YOERequires mainframe and ITIL experience, production support/site reliability skills, typically 3+ years industry experience; bachelor's degree preferred.
Information Technology Infrastructure Library (ITIL), Mainframe Software
1w
Save
Mark Applied
Hide
Senior Software Engineer- Mainframe/Assembler (Adabas & Natural)
Denver, Colorado, United States
$130k-$145k/yr HybridFull Time
Software AG
Software AG: Enterprise software for business process management and data integration.
7+ YOE7+ years assembler development on IBM z/Architecture, strong z/OS knowledge, debugging and performance optimization skills, and strong communication and time-management abilities.
IBM z/Architecture, z/OS, zIIP, zEDC, Sysplex, TCP/IP, CTCA, FCTC, XCF, VTAM, IBM mainframe assembler
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
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
1mo
Save
Mark Applied
Hide
Senior Engineer, HP NonStop Development
St. Petersburg or Memphis or Southfield or Denver
$75k-$125k/yr HybridFull Time
Raymond James
Raymond JamesNew York Stock Exchange: RJF: Provides wealth management, investment banking, and retail banking services.
3+ YOE3+ years general development experience (5+ years preferred). Experience with HP NonStop COBOL85, HPNS SQL/MX, SQL/MP, Pathway, Tandem Guardian OS, SDLC, Agile/Waterfall, MQ, and Microsoft collaboration tools; bachelor’s in CS or computer engineering required.
HP NonStop COBOL85, HPNS SQL/MX, SQL/MP, Pathway, Tandem Guardian OS, MQ, ACATS, MAT, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Visio, IBM Mainframe, Azure-DevOps, Microsoft Teams, Zoom
1d
Save
Mark Applied
Hide
Software Engineer Lead - Site Reliability Engineering Center
Pittsburgh or Phoenix or Lakewood or Birmingham or Strongsville or Farmers Branch
$86k-$158k/yr OnsiteFull Time
PNC Financial Services
PNC Financial ServicesNYSE: PNC: Provides banking, lending, and investment services to customers.
3+ YOEBachelors degree and 3+ years experience in software engineering. Experience with Java ecosystem, cloud-native and SRE practices; strong problem solving and communication skills.
Java, Spring boot, J2EE, Kubernetes, Microservices, Mongo DB, Dynatrace, Elastic search, API, Postman, MQ, Kafka, ETL, SAFe, Mainframe, Oracle, SQL, Ansible
1mo
Save
Mark Applied
Hide
Lead Software Engineer – IBM z/OS - Connex Advantage Clearing and Settlement
Denver, Colorado, United States
$164k-$262k/yr HybridFull Time
Visa
VisaNYSE: V: Global payment technology facilitating electronic funds transfers.
10+ YOESenior mainframe engineer with extensive IBM z/OS390 experience, strong COBOL/JCL and FILE-AID skills, scheduling tool expertise (ESP, Control-M, CA7), incident/problem resolution, automation, and familiarity with AI/LLM integration.
IBM z/OS390, Connex Advantage, COBOL, JCL, FILE-AID, ESP, Control-M, CA7, FTP/SSL, FTP/SSH, NDM over SSL/TLS, REXX, ISPF Dialog Manager, Artificial Intelligence (AI), Large Language Models (LLM)
2d
Save
Mark Applied
Hide
Principal Network Engineer z/OS
Saint Paul or Atlanta or Cupertino or New York City or Chicago or Denver or Charlotte or Brookfield or Earth City
$120k-$141k/yr HybridFull Time
U.S. Bank
U.S. BankNYSE: USB: Provider of personal, business, and institutional financial services.
7+ YOE7+ years IT experience managing mainframe network services; expertise with z/OS Communications Server, VTAM, TCP/IP, TN3270, GDPS, TPX, Connect:Direct, SMP/E; associate degree or equivalent; on-call support.
IBM z/OS Communications Server, VTAM, TCP/IP, TN3270, GDPS, TPX Session Manager, Connect:Direct, FTP, SFTP, FTPS, FTP-AT/TLS, SMP/E
1mo
Save
Mark Applied
Hide
Modernization Architect
Atlanta or Austin or Baltimore or Boston or Charlotte or Chicago or Dallas or Denver or Detroit or Houston or Kansas City or Las Vegas or Minneapolis or Nashville or Phoenix or Salt Lake City or Seattle or Washington
$171k-$281k/yr OnsiteFull Time
Slalom
Slalom: Provides business and technology consulting and software engineering services.
Hands-on z/OS/mainframe experience, proficiency in mainframe languages (COBOL, PL/I, HLASM, JCL), cloud deployment experience (AWS/Azure/GCP), familiarity with LLMs and automated transformation tools, strong prototyping and collaboration skills.
z/OS, COBOL, PL/I, HLASM, JCL, CICS, DB2, VSAM, AWS, Azure, GCP, LLMs, ANTLR4, Tree-Sitter, CloudFormation, Terraform, Kubernetes, OpenShift, AWS Blu Age, AWS Mainframe Modernization (Transform for z/OS), Amazon Q Developer, Bedrock, Claude, RACF
1w
Save
Mark Applied
Hide
Software Engineering Manager - Data & Automation
Strongsville or Pittsburgh or Denver or Birmingham or Farmers Branch
$100k-$204k/yr OnsiteFull Time
PNC Financial Services
PNC Financial ServicesNYSE: PNC: Provides banking, lending, and investment services to customers.
5+ YOE3+ MgmtLead ~15 engineers, deliver enterprise data and automation initiatives; 5+ years industry experience and ~3+ years management; bachelor’s degree typical; strong data engineering, ETL, and delivery skills.
Informatica, Teradata, Linux, Mainframe, Hadoop, Apache Spark, AWS, Azure, GCP, Teradata SQL