Senior Python Engineer Mainframe (DB2/JCL) Design build Python on z/OS (USS): Develop CLI tools, services, and batch utilities that run natively on z/OS Unix System Services (USS) or orchestrate ...
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Senior Python Engineer Mainframe (DB2/JCL) Design build Python on z/OS (USS): Develop CLI tools, services, and batch utilities that run natively on z/OS Unix System Services (USS) or orchestrate ...
Quick apply
Senior Python Engineer Mainframe (DB2/JCL) Design build Python on z/OS (USS): Develop CLI tools, services, and batch utilities that run natively on z/OS Unix System Services (USS) or orchestrate ...
True, WV · On-site
$70K - $104K/yr
Collaborate with senior developers and other team members to troubleshoot and debug code ... Proficiency with Python, including experience with libraries such as PySpark, Pandas, NumPy, Polars ...
New
True, WV · On-site
$70K - $104K/yr
Collaborate with senior developers and other team members to troubleshoot and debug code ... Proficiency with Python, including experience with libraries such as PySpark, Pandas, NumPy, Polars ...
New
Senior GIS Application Developer Location: West Virginia Department of Transportation (WVDOT) About ... Write and maintain automation scripts in Python, UNIX/LINUX shell scripting, or similar ...
Senior GIS Application Developer Location: West Virginia Department of Transportation (WVDOT) About ... Write and maintain automation scripts in Python, UNIX/LINUX shell scripting, or similar ...
Senior GIS Application Developer Location: West Virginia Department of Transportation (WVDOT) About ... for JavaScript, Python, .NET, and REST services Integrate GIS applications with enterprise ...
Senior GIS Application Developer Location: West Virginia Department of Transportation (WVDOT) About ... for JavaScript, Python, .NET, and REST services Integrate GIS applications with enterprise ...
Clarksburg, WV · On-site +1
$53.50 - $70.75/hr
Senior Software Developer - Integration Support ID: 1610 Location: Clarksburg, WV More about this ... The successful candidate will have strong programming expertise in languages such as Java, Python ...
Clarksburg, WV · On-site +1
$53.50 - $70.75/hr
Senior Software Developer - Integration Support ID: 1610 Location: Clarksburg, WV More about this ... The successful candidate will have strong programming expertise in languages such as Java, Python ...
Clarksburg, WV · On-site
$53.50 - $70.75/hr
The Senior Software Developer will develop automated software tools, enhance Extract, Transform ... The successful candidate will have strong programming expertise in languages such as Java, Python ...
Clarksburg, WV · On-site
$53.50 - $70.75/hr
The Senior Software Developer will develop automated software tools, enhance Extract, Transform ... The successful candidate will have strong programming expertise in languages such as Java, Python ...
Clarksburg, WV · On-site
$53.50 - $70.75/hr
The Senior Software Developer will develop automated software tools, enhance Extract, Transform ... The successful candidate will have strong programming expertise in languages such as Java, Python ...
Clarksburg, WV · On-site
$53.50 - $70.75/hr
The Senior Software Developer will develop automated software tools, enhance Extract, Transform ... The successful candidate will have strong programming expertise in languages such as Java, Python ...
WV · On-site +1
$142K - $189K/yr
... Python, or similar) - Solid understanding of cloud engineering paradigms, asynchronous systems, and service integration patterns - Working knowledge of design patterns, reliability, and scaling ...
WV · On-site +1
$142K - $189K/yr
... Python, or similar) - Solid understanding of cloud engineering paradigms, asynchronous systems, and service integration patterns - Working knowledge of design patterns, reliability, and scaling ...
WV · On-site +1
$215K/yr
Design and implement high-quality services in Python and Go that power our scanning workflows ... Strong experience as a Senior Software Engineer (or equivalent) working on backend or systems-level ...
WV · On-site +1
$215K/yr
Design and implement high-quality services in Python and Go that power our scanning workflows ... Strong experience as a Senior Software Engineer (or equivalent) working on backend or systems-level ...
Kearneysville, WV · On-site
$105K - $135K/yr
Responsibilities: As a Senior Systems Engineer you will support the systems engineering ... Advanced programming and scripting proficiency in Java, .NET, or Python. * Expert-level ...
Kearneysville, WV · On-site
$105K - $135K/yr
Responsibilities: As a Senior Systems Engineer you will support the systems engineering ... Advanced programming and scripting proficiency in Java, .NET, or Python. * Expert-level ...
Charleston, WV · On-site +1
$126K - $162K/yr
The Position We're looking to hire a Senior AWS DevOps Engineer to join our team. You'll work with ... Familiar with scripting languages such as Python, Bash, or similar for automation. * Experience ...
Charleston, WV · On-site +1
$126K - $162K/yr
The Position We're looking to hire a Senior AWS DevOps Engineer to join our team. You'll work with ... Familiar with scripting languages such as Python, Bash, or similar for automation. * Experience ...
WV · On-site
The Sr. Cloud Developer with DevSecOps Experience will work as part of the CMM Enterprise Data Warehouse (EDW) team to deploy a secured cloud-native EDW platform and support the statutory and ...
$96K - $132K/yr
About the Role The Senior Analytics Engineer will play a critical leadership role in shaping and ... Advanced proficiency in SQL and Python, with strong data modeling and transformation skills.
$96K - $132K/yr
About the Role The Senior Analytics Engineer will play a critical leadership role in shaping and ... Advanced proficiency in SQL and Python, with strong data modeling and transformation skills.
Clarksburg, WV · On-site
$102K - $140K/yr
Senior Systems Engineer - Technical Support ID: 1611 Location: Clarksburg, WV More about this job ... Python, and C# * MUST have experience in creating and maintaining one or more the following ...
Clarksburg, WV · On-site
$102K - $140K/yr
Senior Systems Engineer - Technical Support ID: 1611 Location: Clarksburg, WV More about this job ... Python, and C# * MUST have experience in creating and maintaining one or more the following ...
$98K - $133K/yr
The Senior Data Engineer will report directly to the Senior Vice President of Enterprise ... Expertise in Python for data engineering tasks, including data manipulation and workflow management.
$98K - $133K/yr
The Senior Data Engineer will report directly to the Senior Vice President of Enterprise ... Expertise in Python for data engineering tasks, including data manipulation and workflow management.
WV · On-site +1
$195K/yr
About the role The Senior Software Engineer on the Underwriting team designs and builds backend ... Design, build, and maintain scalable backend services in Python and/or Go that power underwriting ...
WV · On-site +1
$195K/yr
About the role The Senior Software Engineer on the Underwriting team designs and builds backend ... Design, build, and maintain scalable backend services in Python and/or Go that power underwriting ...
Charleston, WV · Remote
$143K - $193K/yr
Developing modern, secure APIs to improve integration with enterprise batch, DevOps, business ... Java, Python, Go, or similar) and API design. * Hands-on experience with CI/CD pipelines as ...
Charleston, WV · Remote
$143K - $193K/yr
Developing modern, secure APIs to improve integration with enterprise batch, DevOps, business ... Java, Python, Go, or similar) and API design. * Hands-on experience with CI/CD pipelines as ...
True, WV · On-site
$100K - $175K/yr
Overview LMI is seeking a Senior Full Stack Engineer to help architect, build, and extend IronSled ... Strong experience with TypeScript, Angular, Node.js or Python, PostgreSQL, and RESTful API design.
New
True, WV · On-site
$100K - $175K/yr
Overview LMI is seeking a Senior Full Stack Engineer to help architect, build, and extend IronSled ... Strong experience with TypeScript, Angular, Node.js or Python, PostgreSQL, and RESTful API design.
New
Clarksburg, WV · Remote
$66 - $88.25/hr
... Engineering, Database Administration, Information Technology, or a related technical discipline ... Java * Python * C# * C * .NET * Database platforms, including one or more of the following:
Clarksburg, WV · Remote
$66 - $88.25/hr
... Engineering, Database Administration, Information Technology, or a related technical discipline ... Java * Python * C# * C * .NET * Database platforms, including one or more of the following:
Job Title - Senior Manufacturing Test Engineer Pay $35 Location - Weirton, WV Contract- A Senior ... Experience and expertise with at least one programming language such as LabVIEW, Python, C#, C ...
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Job Title - Senior Manufacturing Test Engineer Pay $35 Location - Weirton, WV Contract- A Senior ... Experience and expertise with at least one programming language such as LabVIEW, Python, C#, C ...
$42.6K - $52.4K
0% of jobs
$52.4K - $62.3K
0% of jobs
$62.3K - $72.1K
2% of jobs
$72.1K - $82K
4% of jobs
$82K - $91.8K
12% of jobs
$94.6K is the 25th percentile. Wages below this are outliers.
$91.8K - $101.7K
24% of jobs
The median wage is $107.4K / yr.
$101.7K - $111.6K
13% of jobs
$111.6K - $121.4K
15% of jobs
$125.1K is the 75th percentile. Wages above this are outliers.
$121.4K - $131.3K
13% of jobs
$131.3K - $141.1K
11% of jobs
$141.1K - $151K
6% of jobs
$42.6K
$109.9K
$151K
| Aspect | Senior Python Developer | Python Developer |
|---|---|---|
| Required Experience | Typically 5+ years, with leadership and complex project experience | Usually 1-3 years, focusing on core Python skills |
| Responsibilities | Designing architecture, mentoring, handling complex systems | Writing code, debugging, implementing features |
| Certifications | Optional but beneficial (e.g., Python certifications, cloud certs) | Often not required |
| Work Environment | Collaborative teams, project planning, code reviews | Development-focused, task-oriented |
The main difference between a Senior Python Developer and a Python Developer lies in experience, responsibilities, and leadership. Senior developers handle complex projects, mentor others, and often participate in architecture decisions, while Python Developers focus on coding and feature implementation. Both roles are essential in tech companies, but the senior role requires more experience and broader skills.

Contractor
Re-posted 18 days ago
Senior Python Engineer Mainframe (DB2/JCL) Design build Python on z/OS (USS): Develop CLI tools, services, and batch utilities that run natively on z/OS Unix System Services (USS) or orchestrate mainframe jobs from distributed hosts.
Batch orchestration: Create and maintain JCL (PROCs, symbolics, condition codes, GDGs) and integrate with enterprise schedulers (e.g., Control-M, CA-7). Implement robust restart/recovery and step-level error handling.
DB2 for z/OS engineering: Write and tune SQL; implement stored procedures; design schemas and indexes; use EXPLAIN, RUNSTATS, and utilities (LOAD/UNLOAD/REORG) to hit SLAs.
PythonDB2 integration: Connect via ibm_db/CLI/ODBC and optimize connection pooling, cursor usage, and transaction boundaries for high-throughput workloads.
Data processing pipelines (plus): Build high-volume ETL/ELT flows with Python (e.g., pandas, PyArrow, Dask) and efficient I/O (binary formats, streaming, chunking).
Job submission automation: Submit and monitor jobs via SDSF, z/OSMF REST APIs, or Zowe CLI; parse JES output; automate handoffs and notifications.
Reliability observability: Implement structured logging, metrics, and tracing; integrate with enterprise monitoring (e.g., Splunk, ELK).
Testing CI/CD: Enforce unit/integration tests (pytest), code reviews, linting/type hints (flake8/ruff/mypy), packaging, and CI/CD (e.g., Jenkins, GitLab).
Security compliance: Follow RACF/Top Secret/ACF2 controls, least privilege, and data governance for PII/PCI/SOX environments.
Mentorship documentation: Coach engineers on Python + mainframe best practices; produce clear runbooks and architecture docs.
Required qualifications 8+ years professional Python (3.x) building reliable, performant production systems (CLIs, services, or batch).
Hands-on Python on the mainframe (must-have): Comfortable with z/OS USS, TSO/ISPF, SDSF, OMVS, dataset concepts (PS/PO, GDGs), code pages/EBCDIC vs ASCII, and file I/O nuances.
Mainframe DB2 expertise: Strong DB2 for z/OS (SQL tuning, indexing strategies, access paths, utilities, locking concurrency).
Familiar with SPUFI, DSNTEP2, IBM Data Studio (or equivalents).
Deep JCL proficiency:
PROCs, symbolic parms, condition codes, dataset allocation, DFSORT/ICETOOL, IDCAMS, and common utilities; experience wiring JCL into enterprise schedulers.
Scripting OS: Shell (sh/bash) on USS; comfort with dataset/file conversions, large file throughput, and job logs.
SDLC discipline: Git, trunk-based development, code reviews, tickets/change management (e.g., Jira/ServiceNow).
Excellent communicator with the ability to translate between mainframe, data, and app teams.
Data-processing Python: pandas, PyArrow, Dask;
memory/perf tuning for large datasets; binary formats (Parquet/Avro).
Automation toolchain:
Zowe CLI, z/OSMF REST, IBM Z Open Automation Utilities, Ansible for z/OS.
Integration: IBM MQ, CICS, Kafka/CDC (e.g., IBM Data Replication), REST/gRPC services bridging z/OS and distributed.
Performance engineering: SMF insights, buffer pool tuning (with DBAs), batch window optimization.
Refactoring legacy: Translating COBOL/PL/I batch logic to Python where appropriate; creating safe migration paths.
Distributed data engines: PySpark/Spark (for off-platform processing), Airflow.
Observability SRE: SLA/SLO design, incident response for nightly/weekly batch cycles.
Tools environment (illustrative) Mainframe: IBM z/OS 2.x, USS, TSO/ISPF, SDSF, RACF/Top Secret/ACF2 Data: DB2 12/13 for z/OS;
utilities (REORG/RUNSTATS/LOAD/UNLOAD) Python: 3.x, venv/poetry, ibm_db/ODBC, requests, pandas/PyArrow (as applicable)
Automation: Zowe CLI, z/OSMF APIs, Control-M/CA-7, Jenkins/GitLab CI Monitoring: Splunk/ELK, enterprise log aggregation Success metrics Batch SLAs consistently met; reduced average job elapsed time and rerun rates Measurable DB2 query/perf improvements (e.g., CPU, getpages, elapsed time) Increased automation coverage (job submission/monitoring, recovery) High test coverage and low change-failure rate across releases Education certification BS/MS in CS, EE, or equivalent experience
IBM Certified Database Admin DB2 for z/OS; IBM z/OS Associate/Professional; Control-M/CA-7 certifications