71 principal engineer jobs at 25 companies in Plainfield, IN
1d
Save
Mark Applied
Hide
Principal Engineer - FPGA/ASIC Design
Reston or Washington, D.C. or Indianapolis or West Lafayette
$152k-$247k/yr HybridFull Time
5+ YOEBachelor's with 5+ years, master's with 3+ years, or PhD in electronics or computer engineering; U.S. citizenship required. FPGA/ASIC, RTL, VHDL/Verilog/SystemVerilog and verification experience required.
FPGA, ASIC, DO-254, VHDL, Verilog, SystemVerilog, TCL, Python, Shell, Windows, Linux, Git, SVN, Actel, Xilinx, MATLAB, Simulink, Cameo Systems Modeler, MagicDraw, SysML, ILA, JTAG, Microsoft Excel
2mo
Save
Mark Applied
Hide
Principal Software Engineer, AI
Atlanta or Guadalajara or Indianapolis
HybridFull Time
5+ YOE5+ years in software development; previous people management; UI/front-end experience; agile development; strong customer-focused mindset.
2mo
Save
Mark Applied
Hide
Principal Lab Support Engineer
Greenfield, Indiana, United States
OnsiteFull Time
12+ YOEBachelor’s in Life Sciences; 12+ years related experience; GLP knowledge; LC/GC/HPLC troubleshooting; strong communication and leadership.
HPLC, UPLC, LC/GC, Laboratory instrumentation
3mo
Save
Mark Applied
Hide
Senior Principal Engineer - Automation Engineering – Hybrid Manufacturing - Lilly Medicine Foundry
Lebanon or Indianapolis
$65k-$167k/yr OnsiteFull Time
8+ YOEB.S. in Engineering and 8+ years biopharma automation engineering experience; expertise with DeltaV, Rockwell/Allen Bradley PLCs, DCS/SCADA/MES, GMP and 21CFR Part 11; leadership, mentoring, and project delivery skills; US work authorization required.
DeltaV Distributed Control System, Rockwell Allen Bradley PLC, SCADA, DCS, PLC, MES, Syncade
1d
Save
Mark Applied
Hide
Principal Systems Engineer
Indianapolis, Indiana, United States
HybridFull Time
12+ YOEBachelor's degree in engineering or STEM, 12+ years of related engineering experience, leadership of multidisciplinary teams, systems integration expertise, U.S. citizenship, passport, and ability to obtain Secret clearance.
Model Based Systems Engineering (MBSE), MIL-STD-1553, MIL-STD-1760, Universal Armament Interface (UAI), Radio Frequency (RF), ENET
2w
Save
Mark Applied
Hide
Principal Mechanical Engineer
Westchester or North Kansas City or Indianapolis
HybridFull Time
Extensive mechanical engineering experience for utilities and process equipment across multi-site manufacturing; bachelor’s or master’s in mechanical engineering or equivalent experience; subject matter expertise in material handling, rotating equipment, boilers, tanks, and mechanical design.
1w
Save
Mark Applied
Hide
Principal Geotechnical Engineer
Indianapolis or Lakewood
$150k-$200k/yr OnsiteFull Time
10+ YOEPE in Colorado, bachelor's in civil engineering (master's preferred), 10+ years geotechnical experience, construction oversight experience, strong communication and local practice familiarity.
3d
Save
Mark Applied
Hide
Principal Systems Engineer
Indianapolis, Indiana, United States
$108k-$205k/yr OnsiteFull Time
8+ YOESTEM degree and 8+ years of systems engineering lifecycle experience required. Requires U.S. citizenship, active Secret clearance, and systems integration, software lifecycle, requirements, design, and testing expertise.
CAMEO, SysML, DOORS, Model-Based Systems Engineering (MBSE), Azure DevOps
2mo
Save
Mark Applied
Hide
Principal Water Supply Engineer
Indianapolis, Indiana, United States
$150k-$170k/yr OnsiteFull Time
15+ YOEBachelor's in Civil/Environmental Engineering required, 15+ years engineering experience, PE license required, MS preferred, experience with water treatment/distribution, leadership and project management skills, AutoCAD/Revit/Plant3D/Civil 3D/WaterCAD familiarity.
AutoCAD, Revit, Plant3D, Civil 3D, WaterCAD
3w
Save
Mark Applied
Hide
Principal DeltaV Automation Engineer
Maumee or Cincinnati or Indianapolis or Peachtree City or Overland Park or Edina or Raleigh or Westminster
$150k-$180k/yr OnsiteFull Time
10+ YOEBachelor's in Engineering or equivalent,10+ years Emerson DeltaV experience,DeltaV SME with design, implementation, commissioning, and technical leadership experience.
DeltaV Control Studio, DeltaV Operate, DeltaV Diagnostics, DeltaV Continuous Historian, DeltaV Live, DeltaV Batch, DeltaV System Architecture, ISA-88 Batch Methodology, DeltaV PK Controller, DeltaV SIS, Syncade, Virtualized DeltaV Environments, Electronic Marshalling / CHARMS, M-Series and S-Series Controllers, Ethernet I/O Card (EIOC), Emerson DeltaV
1mo
Save
Mark Applied
Hide
Principal Power Systems Engineer (EMS)
Carmel or Eagan
$149k-$174k/yr OnsiteFull Time
8+ YOEBachelor's in engineering, 8+ years utility/transmission/real-time operations experience, production-grade programming (C++, Python), EMS experience, ability to lead modernization projects and mentor junior engineers.
C++, Python, Energy Management System
3mo
Save
Mark Applied
Hide
Principal Development Engineer - Sustainable Infrastructure
Indianapolis, Indiana, United States
$112k-$168k/yr OnsiteFull Time
10+ YOEBachelor’s degree in engineering; 10+ years designing/selling building systems; PE license and CEM certification preferred; strong analytical and leadership skills; ~30% travel.
2mo
Save
Mark Applied
Hide
Principal Development Engineer - Sustainable Infrastructure
Indianapolis, Indiana, United States
$112k-$168k/yr HybridFull Time
10+ YOEBachelor’s degree in engineering, 10+ years designing or selling building systems, HVAC, energy modeling, construction, or facility management; CEM required; strong analytical, leadership, communication, and customer-facing skills.
Microsoft Word, Microsoft Excel, Microsoft Visio, Microsoft PowerPoint, Microsoft Project, EQuest
2mo
Save
Mark Applied
Hide
Roadway Engineer - Sr. / Principal (Remote)
United States or Tennessee or Georgia or North Carolina or Virginia or Indiana or Detroit or Indianapolis or Cincinnati or Atlanta
$104k-$181k/yr RemoteFull Time
10+ YOEBachelor's in Civil Engineering, PE required, 10+ years related experience, DOT roadway design and CAD proficiency, ability to develop contract documents, analyze designs, mentor staff, and lead project delivery.
CAD
1mo
Save
Mark Applied
Hide
Principal Engineer - FPGA/ASIC Design
Indianapolis or West Lafayette
$113k-$184k/yr HybridFull Time
3+ YOEU.S. citizen with degree in electronics/computer engineering and 3+ years experience (or higher degree), expertise in FPGA/ASIC design (VHDL/Verilog/SystemVerilog), DO-254 verification, timing closure, synthesis, testbenches, lab validation, and scripting (TCL/Python/Shell).
VHDL, Verilog, SystemVerilog, DO-254, TCL, Python, Shell, Windows, Linux, Git, SVN, Actel, Xilinx, MATLAB, Simulink, Cameo Systems Modeler (MagicDraw), ILA, JTAG, oscilloscopes, logic analyzers
2mo
Save
Mark Applied
Hide
Principal Water Wastewater Consultant
Highlands Ranch or Reno or Phoenix or Salt Lake City or Missoula or Dallas or Raleigh or Indianapolis or Minneapolis or Tampa or Philadelphia
$136k-$205k/yr HybridFull Time
20+ YOE20+ years industrial water/wastewater experience; Bachelor's in engineering; PE license preferred; cross-functional in engineering, project management, sales; mining sector knowledge.
1mo
Save
Mark Applied
Hide
Principal Data Engineer (PMTS) - MDM
San Francisco or New York or Seattle or Indianapolis
$238k-$345k/yr HybridFull Time
12+ YOE12+ years in software/data engineering; related technical degree required; deep expertise in knowledge graph technologies, ontology engineering, graph databases, semantic search, vector search, cloud platforms (AWS/GCP/Azure), and leading enterprise-scale technical programs.
Neo4j, TopQuadrant, RDF/OWL, SPARQL, Claude, Cursor, Windsurf, GitHub Copilot, Salesforce Data Cloud, AWS, GCP, Azure, MCP frameworks, AI agents
1mo
Save
Mark Applied
Hide
AWS Platform Engineer Principal
Columbus or Atlanta
HybridFull Time
7+ YOE7+ years AWS platform experience with Terraform/CloudFormation, CI/CD (GitHub Actions, CodePipeline), platform governance, L3 incident support, architecture guidance, and mentoring.
EC2, S3, IAM, VPC, Lambda, CloudFormation, AWS CloudFormation, RDS, CloudWatch, CloudTrail, Route 53, Transit Gateway, KMS, Secrets Manager, GuardDuty, Security Hub, X-Ray, ELK Stack, Prometheus, Grafana, Terraform, CDK, Python, AWS CLI, Boto3, GitHub Actions, AWS CodePipeline, CodeBuild, Jenkins, GitLab CI, ECS, Fargate, EKS, Docker, Helm, AWS Budgets, Cost Explorer, Trusted Advisor, Well-Architected Framework, CIS Benchmarks, Service Control Policies (SCPs), Jira, Confluence
1mo
Save
Mark Applied
Hide
Principal Applied AI Engineer, Finance
Menlo Park or Boston or Indianapolis or Durham or Washington or Missouri or Rhode Island or Maine or New York or Florida or North Carolina or Massachusetts or Illinois or Tennessee or Pennsylvania or Mississippi or New Jersey or Maryland or Michigan or Vermont or Minnesota or West Virginia or Louisiana or California or Ohio or Connecticut or South Carolina or Georgia or Delaware or Wisconsin or Virginia or Kentucky or Indiana
$194k-$341k/yr RemoteFull Time
8+ YOE8+ years building production AI/ML systems with Python, LLMs, MLOps and cloud (preferably AWS); expertise in time-series forecasting, predictive modeling, and agentic/Generative AI; strong software engineering and CI/CD experience.
Python, LLMs, Docker, Kubernetes, AWS, CI/CD, APIs, MLOps, RAG, vector databases
1mo
Save
Mark Applied
Hide
AWS Platform Engineer Principal
Columbus or Atlanta
HybridFull Time
5+ YOEComputer science, information technology, business, or related degree or equivalent experience; 5–7 years required, with 7–9+ years AWS platform experience preferred. Expertise in AWS, Terraform, CloudFormation, CI/CD, governance, and troubleshooting.
AWS, Amazon EC2, Amazon S3, AWS IAM, Amazon VPC, AWS Lambda, AWS CloudFormation, Amazon RDS, Amazon CloudWatch, AWS CloudTrail, Amazon Route 53, AWS Transit Gateway, AWS KMS, AWS Secrets Manager, Amazon GuardDuty, AWS Security Hub, AWS X-Ray, ELK Stack, Prometheus, Grafana, Terraform, AWS CDK, Python, AWS CLI, Boto3, GitHub Actions, AWS CodePipeline, AWS CodeBuild, Jenkins, GitLab CI, Amazon ECS, AWS Fargate, Amazon EKS, Docker, Helm, AWS Budgets, AWS Cost Explorer, AWS Trusted Advisor, Jira, Confluence, GitHub
Explore Jobs