12 ir engineer jobs at 11 companies in Union, NJ
1d
Save
Mark Applied
Hide
Senior Engineer - VCL Compiler
Denver or New York City or San Francisco
$181k-$217k/yr HybridFull Time
5+ YOE5+ years compiler or systems engineering experience; production C development in POSIX/Linux; strong compiler internals (parsing, AST, IR, codegen); refactoring large codebases; testing and CI/CD; strong written communication.
C, POSIX, Linux, Varnish, VCL, VCC
1d
Save
Mark Applied
Hide
Senior Software Engineer - Build - NYC
New York City, New York, United States
$210k-$250k/yr HybridFull Time
5+ YOE5-8 years software engineering experience with Python or Go; experience with LLMs, embeddings, vector databases, search/IR or applied AI preferred; strong communication and product development skills.
Apache Airflow, Python, Go, LLMs, vector databases, embeddings
2w
Save
Mark Applied
Hide
Specialist, Cyber Detection Engineer
Newark, New Jersey, United States
$96k-$159k/yr OnsiteFull Time
3+ YOE3+ years in detection engineering/IR/threat hunting; develop SIEM/XDR detections; proficiency with Splunk SPL or Microsoft KQL, SQL; experience with Python, PowerShell, REST/GraphQL APIs; apply MITRE ATT&CK.
Splunk SPL, Microsoft KQL, SQL, Python, PowerShell, REST, GraphQL, SIEM, XDR
1w
Save
Mark Applied
Hide
Senior RAG Engineer
New York or Norway or Sweden or Ireland or United States
RemoteFull Time
5+ YOE5+ years building backend production systems with 2+ years shipping retrieval/RAG; strong Python and FastAPI; experience running vector indexes (Qdrant), embeddings, PostgreSQL/Redis, OCR-heavy ingestion and IR metrics.
Python, FastAPI, Qdrant, PostgreSQL, Redis
3w
Save
Mark Applied
Hide
Machine Learning Engineer, Sponsored Products Off-Search Sourcing and Relevance
New York, New York, United States
OnsiteFull Time
3+ YOE3+ years professional software development, 2+ years design/architecture experience, programming proficiency, experience with ML/data mining/IR/NLP preferred, BS in CS preferred.
1d
Save
Mark Applied
Hide
Senior Director, AI Engineering
United States or New York City
$230k-$337k/yr RemoteFull Time
7+ YOE5+ MgmtGraduate degree in computer science or electrical engineering; 7+ years software engineering, 5+ years AI team leadership, cloud-native experience, and large-scale ML/DL/LLM deployment experience.
AWS, Kubernetes, PyTorch, Langfuse, LangGraph, Weaviate, A2A, NLP, CV, IR, Knowledge Graphs, LLMs, Machine Learning, Deep Learning
2w
Save
Mark Applied
Hide
R & D Scientist
Carteret, New Jersey, United States
$100k-$110k/yr OnsiteFull Time
3+ YOEBachelor's in chemistry/chemical engineering, 3+ years industry experience, experience with GC/GC-MS/FT-IR, method development, distillation experience, regulated lab/manufacturing background.
GC, GC-MS, FT-IR, Microsoft Office
1mo
Save
Mark Applied
Hide
Associate Scientist at Gelest
Morrisville, Pennsylvania, United States
$75k-$99k/yr OnsiteFull Time
3+ YOEM.S. in chemistry/chemical engineering/materials science with 3+ years (or Ph.D. with 0–1 years) and laboratory experience in synthesis, characterization, instrumentation (e.g., NMR, GC, HPLC, MS), ELN use, safety and PPE compliance.
Electronic laboratory notebooks (ELN), Microsoft Office Suite, NMR, GC, HPLC, MS, IR, UV-Vis, TGA, DSC
1mo
Save
Mark Applied
Hide
Cyber Threat Hunter
Berkeley Heights or Alpharetta or Coral Springs
$128k-$216k/yr OnsiteFull Time
8+ YOE8+ years in detection engineering/threat hunting or related domains; expertise building behavior-based detections across enterprise telemetry, Python for analysis, statistical/ML methods, digital forensics/IR; Bachelor's degree in a related field or equivalent.
Python, Git, CI/CD, Google SecOps, Chronicle, MITRE ATT&CK
2mo
Save
Mark Applied
Hide
Applied Science Manager, Sponsored Products and Brands -- Offsite
New York or Seattle or Palo Alto
OnsiteFull Time
4+ YOE3+ Mgmt4+ years applied research; 3+ years managing scientists/ML engineers; 3+ years building ML models; PhD or Masters with 6+ years of applied research; knowledge of ML, NLP, IR, analytics; programming in Java, C++, Python.
Java, C++, Python, AWS, Hadoop, Spark, Pig, Hive
2mo
Save
Mark Applied
Hide
Senior Associate, Forensic Technology
Los Angeles or Sacramento or San Diego or San Francisco or Santa Clara or Washington or Chicago or New York or Dallas or Houston
OnsiteFull Time
3+ YOE3+ years digital forensics/IR experience, Bachelor\u0002s in CS/engineering/forensics or equivalent, DFIR investigations on iOS/macOS/Windows, scripting/programming (Python,Rust,C++,C#,Java), travel as needed, US work authorization required.
Digital Forensics and Incident Response (DFIR), Python, Rust, C++, C#, Java, Magnet, Cellebrite, Artificial Intelligence (AI)
1mo
Save
Mark Applied
Hide
Threat Hunt Senior Associate
Tampa or Jersey City or Coppell
$75k-$150k/yr HybridFull Time
3+ YOE3+ years threat hunting/detection/IR experience, Bachelor's or equivalent, hands-on log analysis across endpoint/identity/network/cloud, experience with KQL/SPL/EQL, scripting (Python/PowerShell/Bash), familiarity with MITRE ATT&CK and detection engineering.
Microsoft Defender for Endpoint, CrowdStrike Falcon, SentinelOne, Microsoft Sentinel, Splunk, Splunk SPL, Elastic, EQL, KQL, Lucene, Chronicle/Google SecOps, Microsoft Azure, AWS, Microsoft Entra ID, Microsoft Azure AD, Okta, CloudTrail, Kubernetes, Sigma, YARA, ATT&CK, SOAR, Python, PowerShell, Bash, jq, osquery, CyberChef, EDR/XDR, SIEM