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Senior Python Developer Jobs in Belvidere, IL, US
65 senior python developer jobs from 31 companies hiring in Belvidere, IL, US.
1mo
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Senior Software Engineer
Hartford or Charlotte or Naperville or Chicago
$97k-$145k/yr HybridFull Time
3+ YOE3+ years of hands-on software development; strong OO design, REST/SOAP APIs, and cloud experience; SAFe, DevOps, and modern languages.
Java, C#, Cpp, Python, JavaScript, HTML, CSS, Angular/React, XML, SQL, AWS, REST API
1mo
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Senior Software Development Engineer (Java & Cloud)
Richardson or Buffalo Grove or Work At Home-Illinois
$93k-$204k/yr HybridFull Time
7+ YOESenior Java developer with cloud, full stack, microservices, REST APIs, containers, CI/CD; 7+ years of experience with AWS/Azure/GCP; strong problem solving and collaboration.
Java, Python, JavaScript, Angular, React, Node.js, AWS, Azure, GCP, Docker, Kubernetes, Jenkins, GitLab CI, CircleCI, PostgreSQL, MySQL, MongoDB
4w
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Senior Salesforce Developer
Chicago or Los Angeles or New York or Oakbrook Terrace or Sacramento or San Francisco or South Bend or San Jose or Tampa or Atlanta or Boston or Columbus or Dallas or Denver or Fort Lauderdale or Grand Rapids or Houston or Austin or Charlotte or Indianapolis
$109k-$222k/yr HybridFull Time
5+ YOE5+ years Salesforce experience; proficient in Apex, Visualforce, Aura, LWC; strong frontend skills; Salesforce API; certifications preferred
Salesforce, Apex, Visualforce, Aura Components, Lightning Web Components, Salesforce API, Heroku, AWS, Python, Node.js
2mo
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Senior Full-Stack Engineer
Culver City or Linthicum or Allen or Woodcliff Lake or Chicago or Orlando or Baton Rouge or Waltham or Phoenix or Harrisburg or West Valley City or Austin or Alpharetta or San Diego or Indianapolis or Lexington or Parma or Little Rock or Asheville or Birmingham or Chantilly or Washington or Brentwood or Plantation or Fort Collins or San Mateo or Schaumburg or Brooklyn
$140k-$180k/yr OnsiteFull Time
7+ YOE7+ years in software development; Bachelor's degree in CS/Engineering; backend (Node.js) and frontend (React) experience; API integrations; cloud and database experience.
Node.js, HapiJS, Python, JavaScript, React, SQL, Serverless, Lambda, CloudFormation, Elastic Beanstalk, EC2, VPC, DynamoDB, RDS, G Suite, Microsoft Graph, Okta, OneLogin, Slack, Linux, Docker, Datadog, CloudWatch, MQTT, log/data pipelines
2w
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Senior Lead Software Engineer, Full Stack
McLean or Houston or Riverwoods
OnsiteFull Time
6+ YOEBachelor’s degree; 6+ years software engineering; 1+ year cloud (AWS/Azure/GCP); proficient in JavaScript, Java, HTML/CSS, TypeScript, SQL, Python, Go; experience with microservices, AWS, containers.
JavaScript, Java, HTML/CSS, TypeScript, SQL, Python, Go, Docker, Kubernetes, AWS, RDBMS, NoSQL
1w
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Senior Data Engineer
Waukegan or Pleasant Prairie or Round Lake or Glenview or Kenosha
$96k-$148k/yr OnsiteFull Time
8+ YOE8+ years in data engineering; ETL with Informatica PowerCenter; strong T-SQL and DB performance tuning; knowledge of SSIS, Python, Azure, Snowflake or Databricks.
Informatica PowerCenter, T-SQL, SSIS, Python, Azure, Snowflake, Databricks
1w
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Mid-Senior Software Engineer
Bartlett, Illinois, United States
$50-$55/hr OnsitePart Time
Experience in software development with Java, C#, or Python; strong problem-solving; Git; good communication; able to work independently or in a team.
Java, C#, Python, Git, AWS, Azure, SQL
3w
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Senior Network Security Engineer
Southlake or Ashburn or Cary or Rolling Meadows or Alpharetta or Temple Terrace or Walnut Creek or Branchburg
$101k-$194k/yr HybridFull Time
4+ YOEBachelor’s degree or 4+ years in cybersecurity; IAM familiarity; incident response lifecycle; automation playbooks with SOAR/Python; Splunk SPL and threat hunting.
Splunk, SOAR, Python, Splunk SPL, SIEM
2mo
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Senior Advanced Automation & Validation Engineer
Saint Charles, Illinois, United States
$115k-$144k/yr OnsiteFull Time
6+ YOEBachelor’s degree in Electrical/Mechanical/Computer Science or 10 years fire industry experience; 6+ years in Test Engineering/Automation; Agile Scrum Master; test lab management; leadership of small teams; programming in Python/LabVIEW/OpenCV; Linux/Ubuntu/Windows; DevSecOps tools (Jira, Jira Align, GitHub, Confluence).
Python, LabVIEW, OpenCV, Jira, Jira Align, GitHub, Confluence, Ubuntu, Linux, Windows, DevSecOps
1w
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Senior Mechanical Engineer 1 - Nuclear
Warrenville, Illinois, United States
$82k-$126k/yr HybridFull Time
5+ YOEBS or MS in Mechanical or Chemical Engineering; 5+ years in power industry; knowledge of nuclear plant codes; PE license beneficial but not required
Python, MATLAB, Excel
2w
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Senior Information Engineer Manager
Schaumburg, Illinois, United States
OnsiteFull Time
7+ YOE3+ MgmtLead design and management of security controls; oversee IAM, MFA, SSO; implement malware protection, DLP, and vulnerability management.
IAM, MFA, SSO, PAM, EDR, XDR, DLP, PACS, Terraform, Python, PowerShell, Bash, SAML, OAuth 2.0, OIDC, PKI
1mo
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Principal Product Software Engineer - AI
Coppell or Riverwoods or Kennesaw or Chicago or Austin or Wichita
$145k-$258k/yr HybridFull Time
9+ YOELead AI-powered software development; 9+ years software experience; Python/Java/C++; 3+ years with LLMs; Agile/XP; strong communication.
Python, Java, C++, LLMs, LangChain, LangGraph, Hugging Face, OpenAI APIs, GitHub Copilot, Prompt engineering, MLOps, Azure AI
1mo
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Lead Software Engineer - AI/ML Deep Learning & GPU ML Serving
Palo Alto or Jersey City or Hanover Park
$152k-$215k/yr OnsiteFull Time
5+ YOE5+ years software development, ML systems; Python; ML frameworks; cloud with Docker/Kubernetes; GPU workloads in Kubernetes; NoSQL; microservices.
Python, TensorFlow, PyTorch, Docker, Kubernetes, EKS, TorchServe, TensorFlow Serving, Triton Inference Server, Cassandra, MLflow, Kubeflow, SageMaker, CUDA
6d
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DevOps Engineer
White Plains or Conyers or Roanoke or Independence or Hartford or Savannah or Alexandria or Greensboro or Charleston or Missoula or Charlotte or Huntsville or Hartford or Miami or Tallahassee or Albany or Gainesville or Columbus or Boston or San Antonio or Dallas or Denver or Phoenix or San Francisco or Chicago or Nashville or Portland or Charlotte or Houston or Wilmington or Lexington or Tampa or Baltimore or Raleigh or Las Vegas or Cary or Irvine or Brookfield or Shreveport or Greenville or Van Nuys or Minneapolis or Red Bank or Jacksonville or Seattle or Sarasota or Kennesaw or Palm Beach or Towson or Sacramento or Dayton or Broomfield or Golden or Princeton or Omaha or Oklahoma City or Chesterfield or Schaumburg or Suffolk or Jupiter or Carmel or Canonsburg or Buffalo or Schaumburg or Philadelphia or Schaumburg or Sunrise or St. Louis or Los Angeles or Atlanta or Gulfport or Norwalk or South Portland or Metairie or Virginia Beach or Edina or Richmond or Southfield or Cleveland or Milwaukee or Chattanooga or Fort Worth or Rochester or Grand Forks or Detroit or Jersey City or Boise or Portland or San Ramon or Easley or Duluth or Glenville or Syracuse or West Palm Beach or Cary or Irvine or Brookfield or Shreveport or Greenville or Los Angeles or Atlanta or Orland Park or Columbia or Elmhurst or Portland or San Diego or San Ramon or Myrtle Beach or Gainesville or Hartford or Allentown or Macon or Tampa or Saint Petersburg or Irvine or Raleigh or San Ramon or Lewisville
$77k-$134k/yr RemoteFull Time
5+ YOE5+ years software development; cloud (Azure/AWS); CI/CD (Azure DevOps, GitHub Actions); scripting (Python, Bash, PowerShell); Git; strong communication; delivery track record.
Azure, AWS, Terraform, Azure Bicep, Docker, Kubernetes, Git, Azure DevOps, GitHub Actions, Python, Bash, PowerShell
2w
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Embedded Software Engineer – Level 3 or 4
Rolling Meadows, Illinois, United States
$109k-$204k/yr OnsiteFull Time
5+ YOEBachelor’s or higher in STEM with 5+ years (level 3) or 8+ years (level 4); TS/SCI clearance; embedded C/C++; RTOS; Linux/Windows; scripting (Python/JavaScript/Perl); hardware test familiarity.
C, C++, RTOS, RTLinux, VxWorks, Integrity, Python, JavaScript, Perl, Unix shell, Linux, Windows, Jira, Confluence, Bitbucket, Oscilloscopes, Signal generators, Spectrum analyzers, Yocto, GNU Radio, Redhawk SDR
1w
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SR REACTOR ENGINEER (OPERATIONS)
Atlanta or Naperville or Rockville or King of Prussia or Arlington
$156k-$197k/yr OnsiteFull Time
1+ YOERequires at least 1 year specialized experience in design, operation, inspection of nuclear plant components; knowledge of NRC regulations; ability to manage complex engineering projects.
Python, MATLAB, Simulations, Machine Learning, Digital Twins
2mo
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Senior Automation Engineer
Malta, Illinois, United States
$114k-$163k/yr OnsiteFull Time
7+ YOE7+ years robotics/automation, hands-on prototyping, end-to-end project delivery.
SolidWorks, Fusion 360, CATIA, ANSYS, OpenCV, HALCON, Cognex VisionPro, Keyence, Arduino, Raspberry Pi, 3D printing, PCBs, Python, MATLAB, LabVIEW, ROS, C/C++, C#, Git, GitHub, Copilot, PLC programming, Ladder Logic, Structured Text
2mo
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Embedded Software Engineer III
Buffalo Grove, Illinois, United States
$79k-$113k/yr OnsiteFull Time
6+ YOE6+ years of embedded software experience; Bachelor's degree in computer or software engineering (master’s preferred); ABET accreditation preferred; strong C/C++, Linux, RTOS, and embedded debugging skills.
Linux, C/C++, RTOS, Embedded Debugging Tools, C#, Python, JavaScript, HTML, React
2w
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Security Lead Software Engineer
Elmhurst, Illinois, United States
$235k-$310k/yr OnsiteFull Time
Hands-on security operations, vulnerability management, and scripting in Python/PowerShell; experience across detection, response, and cloud security.
Splunk, Tenable, Carbon Black, Symantec, Active Directory/Entra ID, ForeScout, Proofpoint, Checkpoint, Wireshark, tcpdump, Python, PowerShell, Azure, Linux, Kubernetes, Cisco ACI, GitLab, VMware, Copilot, OpenAI, Gemini, Claude
1d
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IT Data Warehouse Engineer (944)
Beloit, Wisconsin, United States
OnsiteFull Time
7+ YOESeven+ years in data warehousing; ETL/ELT tooling; SQL; Python/PySpark; Azure, ADF; data modeling; experience with Snowflake/Databricks.
SQL, Python, PySpark, Spark SQL, Azure, ADF, Databricks, Snowflake, ETL, ELT, Data Modeling
2w
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Lead Developer - Data, AI, & Wealth Tech Platforms - Chicago, IL
Chicago or Lincolnshire or Rockford
$125k-$175k/yr HybridFull Time
7+ YOE7+ years data engineering; Bachelor's in CS/IS/Data Eng or equivalent; strong Microsoft Azure; production data pipelines; SQL & Python; experience with AI/ML data workflows and enterprise feeds.
Microsoft Azure, Azure Fabric, SQL, Python, PySpark, Spark
4w
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Data Engineer Lead - Contract
Rolling Meadows, Illinois, United States
$99k-$192k/yr RemoteContract
7+ YOE3+ MgmtLead data engineering teams; 7+ yrs data engineering; 3+ yrs leading teams; BS in Information Technology; Snowflake, Azure Data Factory, ADLS Gen2, Databricks, Spark, Synapse, SQL Server; scripting (PowerShell, Python, Scala, Java, XML); Data Lake/ETL; CI/CD; agile; strong communication.
Snowflake, Azure Data Factory, ADLS Gen 2, Logic Apps, Azure Functions, Databricks, Apache Spark, Scala, Synapse, SQL Server, PowerShell, Python, Java, XML, Data Lake, Azure Data Lake Storage, CI/CD, Infrastructure as Code
1d
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Senior Site Reliability Engineer (Remote)
Mettawa, Illinois, United States
$110k-$209k/yr RemoteFull Time
7+ YOESeven+ years in SRE/DevOps; strong cloud, CI/CD, and observability; experience with container orchestration and microservices.
Kubernetes, Docker, GitHub Actions, Jenkins, Azure, AWS, GCP, OpenTelemetry, Prometheus, Grafana, Terraform, ArgoCD, Helm, Linux, Windows, Python, Go, Elixir
2mo
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Staff Product Test Engineer - Rolling Meadows, IL
Rolling Meadows, Illinois, United States
$110k-$130k/yr OnsiteFull Time
8+ YOEEight+ years in NPI, automated test equipment software, Python preferred; lead NPI projects; strong OO programming and RF knowledge.
Python, Linux, GPIB, Serial, Ethernet, Qt
2mo
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Principal System Engineer
Lincolnshire, Illinois, United States
$130k-$170k/yr HybridFull Time
8+ YOE8+ years in Systems Engineering for medical devices; Bachelor's in Software, Electrical, Biomedical, or Computer Engineering; strong design controls, RM, cyber risk, V&V; leadership and regulatory experience.
Python, C/C++, Scripting
2mo
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Electrical Studies Engineer
Kennesaw or Fort Worth or Naperville
$100k-$185k/yr OnsiteFull Time
3+ YOEBachelor's in Electrical Engineering; 3+ years for mid-level; 7+ years for senior; experience with power systems studies and industry codes.
ETAP, SKM, EMTP-RV, PSCAD, Python, VBA, C++, Microsoft Word, Microsoft Excel
2mo
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Electrical Studies Engineer
Kennesaw or Naperville or Fort Worth
$100k-$185k/yr HybridFull Time
3+ YOEBachelor's in Electrical Engineering; 3+ years for mid level; 7+ years for senior; NEC/IEEE/IEC/NERC experience; ETAP/SKM/PSCAD proficiency; PE license active or pursuing; strong communication and leadership skills.
ETAP, SKM, PSCAD, EMTP-RV, Python, VBA, C++, Microsoft Word, Microsoft Excel
1d
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Sr. PKI Machine Identity Engineer
Mettawa, Illinois, United States
$103k-$144k/yr HybridFull Time
8+ YOE8+ years PKI/identity engineering; enterprise PKI (ADCS); X.509, CA hierarchy; automation; cross-functional IAM/infrastructureSecurity collaboration; VPN/EAP-TLS experience.
ADCS, HSM, PowerShell, Python, CI/CD, Kubernetes, SPIFFE/SPIRE, mTLS
1w
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Lead EHV Engineer 2 - Grid
Warrenville, Illinois, United States
$132k-$205k/yr HybridFull Time
10+ YOEBSEE with power systems or controls emphasis; 10+ years HV substation experience; 3+ years 500kV/765kV design; CAD/3D design proficiency; PE/FE preferred.
AutoCAD, MicroStation, Bentley Substation, BlueBeam, SDS design, Python, MATLAB, Excel
1d
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Principal Data Engineer/Architect
Mettawa, Illinois, United States
$80k-$145k/yr HybridFull Time
12+ YOE12–16 years in data engineering/big data/data architecture; strong AWS EMR and Python; design scalable data architectures
AWS EMR, Python
6d
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Engineering Manager (Platform)
Itasca, Illinois, United States
$130k-$170k/yr HybridFull Time
Hands-on engineering manager with cloud/web/mobile experience; leadership; AWS, React, Node.js, Python.
React, React Native, Node.js, Python, AWS, Lambda, API Gateway, RDS, DynamoDB, S3, CloudWatch, TypeScript, JavaScript
5d
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Principal Architect Data and AI Platforms (Hybrid Work Schedule)
Addison or Fort Wayne
$129k-$174k/yr HybridFull Time
7+ YOE7+ years in data engineering/analytics architecture; strong SQL; experience with data warehouses; semantic/mathematics layer experience; Python programming; API/connector development; cross-team collaboration.
SQL, Python, BigQuery, Snowflake, Redshift, Databricks, APIs
2w
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Data Scientist (Level II and Senior) - AI & Scalable Analytics Solutions
Rockford or Fort Collins or Niles
$77k-$149k/yr HybridFull Time
Develop predictive models, manage data pipelines, and collaborate with cross-functional teams to deliver scalable analytics.
Python, R, SQL, Tableau, Power BI, matplotlib, Git, MLflow, DVC, Azure ML, Databricks, Airflow, FastAPI, Docker, Kubernetes, Terraform, Bicep
HiringCafe market data
Senior Python Developer Jobs market signals in Belvidere, IL, US
These signals come from live HiringCafe job inventory, not a static article. Use them to compare the market, then open listings above to apply directly.
Open jobs
65
Hiring companies
31
Fresh sample
63% new in 30d
Salary visibility
88% show pay
Companies appearing in this market
Sargent & LundyCapital OneCVS HealthMotorola SolutionsNorthrop GrummanWolters KluwerAbbVieCrowe
Work location mix in visible results
Onsite: 25Hybrid: 22Remote: 5