1mo
Save
Mark Applied
Hide
Sr. Software Engineer I
Atlanta or Boston or Chicago or Indianapolis or United States or Canada or North America
RemoteFull Time
4+ YOE4+ years professional software development experience; React and modern JavaScript framework proficiency; experience with LLMs/generative AI and cloud-native architectures; REST/RPC/GraphQL APIs, testing, CI, and strong communication skills.
React, LLMs, GraphQL, REST, RPC
1mo
Save
Mark Applied
Hide
Software Engineer I
Deerfield, Illinois, United States
$79k-$127k/yr HybridFull Time
4+ YOEBachelor's in computer science or HS/GED plus 4 years engineering experience; knowledge of web/mobile coding, Agile, and willingness to travel up to 10% for business.
JavaScript, React, Angular, Node.js, HTML, CSS, Oracle, MySQL, MongoDB, Azure, AWS, Google Cloud, Cloud Foundry, CI/CD
1w
Save
Mark Applied
Hide
Sr. Software Engineer I, Evaluation Services
Chicago or California or Colorado or Florida or Georgia or Illinois or Indiana or Minnesota or Missouri or Montana or New Jersey or New York or North Carolina or Ohio or Oregon or Pennsylvania or South Carolina or Texas or Utah or Vermont or Virginia or Washington or Wisconsin or District of Columbia
$125k-$175k/yr HybridFull Time
5+ YOE5+ years software engineering with API development and partner integrations; strong REST/WebSocket/JSON/OAuth skills; proficiency in TypeScript/JavaScript or Python; excellent troubleshooting and communication.
REST APIs, WebSockets, JSON, OAuth, Postman, curl, browser developer tools, network analyzers, TypeScript, JavaScript, Python, React, Node.js, Swagger/OpenAPI, ReadMe
2w
Save
Mark Applied
Hide
Sr. Software Engineer I, Data & ML Platform
Chicago, Illinois, United States
$105k-$175k/yr HybridFull Time
5+ YOE5+ years platform engineering experience; proficiency in Python; experience with cloud platforms (GCP preferred), containerization, CI/CD, orchestration, mentoring, and platform reliability.
Python, AWS, Azure, GCP, Docker, Kubernetes, Jenkins, CircleCI, Airflow, Argo, Flyte, Kubeflow, Terraform, Ansible, Helm, DataDog, Prometheus, Grafana, Spark, Hadoop, Kafka, Pub/Sub
1w
Save
Mark Applied
Hide
IL0220-Staff Software Engineer I
Warrenville, Illinois, United States
$144k-$185k/yr RemoteFull Time
3+ YOEBachelor's degree plus 3 years related experience (or Master's plus 1 year). Experience with Java, Python, C#, C++, Microsoft technologies, SQL, front-end and back-end web systems required.
Java, Python, C#, C++, Microsoft technologies, SQL
1mo
Save
Mark Applied
Hide
Sr. Software Engineer II, Exchange Connectivity
Chicago, Illinois, United States
$140k-$190k/yr HybridFull Time
8+ YOE8+ years trading industry experience; strong C++ or Rust skills; experience building exchange connectivity and market data systems; knowledge of network programming (multicast UDP, TCP, async I/O) and trading protocols (FIX, SBE); bachelor's degree in CS/EE or related; production trading systems experience.
C++, Rust, REST, WebSocket, FIX, SBE, ITCH, OUCH, FIX/FAST, CME MDP, Eurex ETI, perf, VTune, Wireshark, IBM MQ, Linux, NUMA, PTP
1mo
Save
Mark Applied
Hide
Developer I
Gurugram or Chicago or Houston
OnsiteFull Time
3+ YOEGraduate engineer with 3+ years development experience, foundational .net and JavaScript/React skills, exposure to cloud-native apps, REST APIs, RDBMS, Agile, and strong communication.
.NET, JavaScript, React, PostgreSQL, Redis, Kafka, REST APIs, AWS Lambda, AWS ECS, AWS EKS, CI/CD
2mo
Save
Mark Applied
Hide
Senior Software Engineer I, Frontend Infrasturcture & Experience
Chicago or New York City
$129k-$209k/yr HybridFull Time
5+ YOE5+ years in software engineering; strong frontend with TypeScript/React; experience building reusable frontend systems; focus on accessibility, performance, and maintainability; able to lead large projects and mentor others.
TypeScript, React, Cypress, Jest, Ruby on Rails
1d
Save
Mark Applied
Hide
Engineer I, Surveys
Chicago, Illinois, United States
$85k-$120k/yr HybridFull Time
0+ YOE0-2 years experience; proficiency in Python, JavaScript, Docker; experience with LLMs, dbt/BigQuery, GCP, SQL and modern CI/CD; strong problem solving and communication skills.
Python, JavaScript, Docker, LLMs, dbt, BigQuery, GCP, Git, SQL
1d
Save
Mark Applied
Hide
Engineer I, Paid Media
Chicago, Illinois, United States
$85k-$120k/yr HybridFull Time
0+ YOE0+ years engineering experience; proficiency in Python, JavaScript, Docker, and LLMs; experience with backend systems, APIs, databases, Git, and CI/CD; strong problem-solving and communication.
Python, JavaScript, Docker, LLMs, Git, CI/CD, Meta, Google, TikTok
1d
Save
Mark Applied
Hide
Engineer I, Digital Engagement
Chicago, Illinois, United States
$85k-$120k/yr HybridFull Time
0–2 years relevant experience; proficiency in Python, JavaScript, Docker, LLMs; backend, APIs, databases, testing, and CI/CD familiarity; strong communication and problem-solving.
Python, JavaScript, Docker, LLMs, AI coding tools, Git, CI/CD
2w
Save
Mark Applied
Hide
Senior Design Verification Engineer I
North Chicago, Illinois, United States
$97k-$184k/yr OnsiteFull Time
3+ YOE3+ years medical device/combination product experience, knowledge of design control, GMP/GDP, ISO/FDA/ASTM standards, equipment/software qualification, test method development, statistics and technical communication.
SolidWorks, MiniTab, Electronic Lab Notebook (ELN), Polarian
1mo
Save
Mark Applied
Hide
Mainframe Developer (Chicago, IL, US)
Bloomington or Chicago
$90k-$97k/yr OnsiteFull Time
10+ YOEStrong experience with mainframe technologies (PL/I, IMSDB, DB2, JCL, SORT), 10+ years preferred, health insurance domain experience, development and production support, SAS/REXX, debugging with IDB/IDZ, Git, Agile, Control-M, REST APIs/MQ.
PL/1, PL/I, IMSDB, DB2, JCL, SORT, COBOL, SAS, REXX, VSAM, IDB, IDZ, GIT, Git, CI/CD, Pipeline, Control-M, Webservices, REST API, JSON, MQ, AWS
3w
Save
Mark Applied
Hide
AS/400 Senior Developer
Chicago or Dallas or Houston or Atlanta or Washington or Boston or Denver or San Antonio or Miami or Tampa or Columbus or St. Louis or Kansas City
$120k-$150k/yr RemoteFull Time
5+ YOE5+ years experience with AS/400 (IBM i) and RPGLE, SQL, Microsoft Access, OpenEdge Progress, Visual Basic, Linux; bachelor's in CS/IT or equivalent; strong communication and problem-solving skills.
AS/400 (IBM i), RPGLE, VS Code, Code for IBM i, Git, GitHub, Microsoft Access, OpenEdge Progress, Visual Basic, Linux, SQL
2w
Save
Mark Applied
Hide
BTS Senior Engineer, Technology I
North Chicago, Illinois, United States
$97k-$184k/yr HybridFull Time
6+ YOEDegree plus multi-year regulated-industry experience, fluency with modern software toolchains (GitHub,Jira,JFrog,qTest,ServiceNow,Azure DevOps,AWS CodePipeline), ability to embed controls into DevOps and translate regulatory requirements into technical specifications.
GitHub, Jira, JFrog Artifactory, qTest, ServiceNow CMDB, Azure DevOps, AWS CodePipeline
1w
Save
Mark Applied
Hide
Salesforce Technical Lead
Chicago, Illinois, United States
HybridFull Time
8+ YOE8+ years Salesforce experience, Platform Developer I/Integration Architect/Salesforce Administrator certifications, expertise with Apex, Lightning, REST/SOAP integrations, Agile, and cross-team delivery.
APEX, Lightning, Web Service APIs, REST, SOAP
2w
Save
Mark Applied
Hide
Salesforce Technical Lead
Chicago, Illinois, United States
HybridFull Time
8+ YOE8+ years Salesforce experience, Salesforce Platform Developer I/Integration Architect/Administrator certifications, 6+ years Sales Cloud/Service Cloud on Lightning, 3+ years integrations (REST/SOAP), strong leadership and Agile experience.
APEX, Lightning, Web Service APIs, REST, SOAP, Salesforce Sales Cloud, Service Cloud
1mo
Save
Mark Applied
Hide
Salesforce Consumer Goods Cloud - Technical Lead (Chicago, IL, US)
Chicago or Atlanta or Dallas or Houston or New York City or San Francisco
$73k-$174k/yr HybridFull Time
6+ YOE6+ years Salesforce development experience (1+ year on Consumer Goods Cloud), Platform Developer I (II preferred), strong Apex, LWC, Flow, Platform Events, offline mobile and integration experience (SAP, MuleSoft, REST/SOAP), CI/CD and DevOps (Copado, Gearset), and experience delivering CG Cloud or Field Service implementations.
Salesforce, Consumer Goods Cloud, Apex, Lightning Web Components, Flow, Platform Events, SAP, MuleSoft, REST, SOAP, Copado, Gearset, OmniStudio, FlexCards, OmniScripts, DataRaptors, Data Cloud, Einstein
5d
Save
Mark Applied
Hide
Scientist I, Bioanalytics
North Chicago, Illinois, United States
$75k-$143k/yr OnsiteFull Time
5+ YOEBSc (or MSc) in relevant field, typically 5+ years' bioanalytical experience or MSc equivalent, experience with LC/MS and regulated GLP environments, familiarity with LIMS and analyst software.
Hamilton Starlet, Shimadzu Chromatography instruments, API4000, API5000, API5500, API6500, WATSON Laboratory Information Management Software (LIMS), Applied Biosystems Analyst Software, Electronic laboratory notebook software
Explore Jobs
Expand Your Job Search
Top Cities Near Chicago for Software Developer I
- Software Developer I jobs in Aurora, IL
- Software Developer I jobs in Joliet, IL
- Software Developer I jobs in Naperville, IL
- Software Developer I jobs in Elgin, IL
- Software Developer I jobs in Waukegan, IL
- Software Developer I jobs in Cicero, IL
- Software Developer I jobs in Hammond, IN
- Software Developer I jobs in Gary, IN
- Software Developer I jobs in Arlington Heights, IL
- Software Developer I jobs in Evanston, IL
- Software Developer I jobs in Schaumburg, IL
- Software Developer I jobs in Bolingbrook, IL
- Software Developer I jobs in Palatine, IL
- Software Developer I jobs in Skokie, IL
- Software Developer I jobs in Des Plaines, IL
- Software Developer I jobs in Orland Park, IL
- Software Developer I jobs in Tinley Park, IL
- Software Developer I jobs in Oak Lawn, IL
- Software Developer I jobs in Berwyn, IL
- Software Developer I jobs in Mount Prospect, IL