PromotedHiringCafe
Founding Machine Learning / AI Search Engineer
Cupertino, CA, US
$160k-$310k/yr On-SiteFull Time
Build the ML and AI search behind HiringCafe — ranking, recommenders, retrieval, and LLM agents that surface jobs people would never find on their own.
Python, PyTorch, Elasticsearch, LLMs
PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
3w
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Senior Software Engineer
Fort Collins or Broomfield
$190k-$252k/yr OnsiteFull Time
8+ YOE8+ years experience with C/C++, Python, big data/NoSQL, software design and ML; Bachelors degree or equivalent; strong applied math and engineering background; eligible for Top Secret/SCI clearance.
C/C++, Python, NoSQL, Lattice OS
2d
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Software Engineer
Boulder, Colorado, United States
$77k-$135k/yr OnsiteFull Time
Degree in CS/CE or related field, development experience in C++, ability to obtain Secret clearance; experience with containerization, CI/CD, embedded systems and strong algorithm/data-structure skills.
C++, Python, Docker, Kubernetes, Jenkins, GitLab CI
2w
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Principal Software Engineer
Loveland, Colorado, United States
$177k/yr RemoteFull Time
5+ YOEBachelor's in CS or related and 5+ years software development; 5+ years building scalable data pipelines on AWS; 3+ years technical leadership; proficiency in TypeScript, Python, NodeJS, REST APIs; strong architecture and metrics experience.
TypeScript, Python, REST APIs, JavaScript, NodeJS, AWS
3mo
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Technical Lead - Software Developer, Data Foundry
San Diego or San Francisco or Boston or Louisville or Indianapolis
$152k-$244k/yr OnsiteFull Time
1+ YOEDegree in a STEM field; significant scientific software development experience; proficiency in Python plus one other language, strong SQL, RESTful APIs, cloud and containerization, MLOps tooling (MLflow, W&B), and lab automation integration experience.
Python, Java, C#, Go, TypeScript, Rust, SQL, MLflow, W&B, Postgres, Redshift, Snowflake, BigQuery, Benchling, RDKit, Schrödinger, MOE, Prefect, Airflow, Nextflow, WDL, Docker, Kubernetes, Git, Linux, Bash, AWS, Azure, GCP, MCP
1w
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AI Data Analytics Engineer
Fort Collins, Colorado, United States
$102k-$147k/yr OnsiteFull Time
BillGO: Digital bill payment network for businesses and consumers.
3+ YOE3+ years building production data or software products with analytics engineering and applied AI; proficiency in Python and SQL; experience with data warehouses, dbt, LLMs, and model evaluation.
Python, SQL, Snowflake, BigQuery, Redshift, dbt, LLM APIs, vector databases, embeddings, LangChain, LangGraph, Retrieval-Augmented Generation (RAG)
2mo
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Principal Data Engineer
Boulder or New York
$200k-$240k/yr HybridFull Time
10+ years software/data engineering; 5+ years adtech data infra; real-time streaming/batch pipelines; AWS; AI/agentic tooling experience.
Python, PySpark, Kafka, Databricks, AWS
2d
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Software Engineer I (AI-Driven Data Solutions) - Lafayette, CO
Lafayette, Colorado, United States
$74k-$112k/yr OnsiteFull Time
0+ YOEBachelor's in Computer Science/Data Science or similar, 0+ years software development, Python required; familiarity with JSON, APIs, AI-enabled tools, Linux, data tooling (pandas, NumPy), and CS fundamentals.
Python, C++, JavaScript, JSON, RESTful APIs, GNU/Linux, pandas, NumPy
2d
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Software Engineer I (AI-Driven Data Solutions) - Lafayette, CO
Lafayette, Colorado, United States
$74k-$112k/yr OnsiteFull Time
0+ YOEBachelor's in Computer Science/Data Science or similar; 0+ years software development; experience with Python; strong CS fundamentals; familiarity with JSON, RESTful APIs, AI-enabled tools, and Linux.
Python, C++, JavaScript, JSON, RESTful APIs, GNU/Linux, pandas, NumPy
3w
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Data Engineer, Data Architecture and Engineering, gData
Sunnyvale or Boulder or New York City
$130k-$188k/yr OnsiteFull Time
3+ YOEBachelor's in CS/Math/related or equivalent; 3+ years with data processing (Hadoop, Spark, Pig, Hive), DB administration or data engineering, software experience in Java/C++/Python/Go/JavaScript, and client-facing project experience.
Hadoop, Spark, Pig, Hive, MapReduce, Flume, Java, C++, Python, Go, JavaScript, Advanced SQL, ETL/ELT, NoSQL, AI technologies
1mo
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Senior Software Engineer (Gen AI)
Boulder or Atlanta or Beaverton
$172k-$257k/yr HybridFull Time
5+ YOE5+ years SaaS experience, 4+ years ML/data science or related software development, 4+ years Python and Java experience, production ML/LLM and RAG experience, cloud and containerization experience, bachelor’s degree in a relevant field preferred.
Python, Java, Large language models (LLM), retrieval augmented generation (RAG), MCP, langgraph, vibe coding, AWS, GCP, Docker, ETL
1mo
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C++ Senior Staff/Senior Software Engineer
Boulder, Colorado, United States
$125k-$162k/yr OnsiteFull Time
5+ YOEBachelor's in CS/physical science/math/engineering, 5+ years C++ experience, 3+ years Linux, strong data structures/algorithms and performance optimization, ability to work onsite in Boulder and obtain DoD security clearance.
C++ 17, C++ 20, C++ 23, Linux, CUDA, OpenCL, Python, Rust, Java, MATLAB, Jira, Confluence, Agile, Scrum
4d
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Software Engineer, Maps Infra
Louisville, Colorado, United States
$126k-$201k/yr HybridFull Time
4+ YOE4+ years building server-side and data processing systems; expert C++; distributed systems and cloud-native (AWS/GCP/Kubernetes) experience; strong communication and rapid learning skills.
C++, AWS, GCP, Kubernetes, Python, Golang
2mo
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Senior Software Engineer
Boulder, Colorado, United States
$140k-$185k/yr HybridFull Time
3+ YOEDesign and build API integrations and data pipelines; experience with log collectors; cloud platforms; Go/Kotlin/TypeScript; 3–6+ years in relevant roles.
AWS, GCP, Azure, Docker, Kubernetes, GitHub Actions, Fluentd, Fluent Bit, Vector, Logstash, Elastic Beats, OpenTelemetry Collector, rsyslog, syslog-ng, Elasticsearch, Kibana, Kafka, Terraform, Go, Kotlin, TypeScript, JSON, CEF, Syslog
1mo
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Principal Software Engineer (Loveland, CO, US, 80538)
Loveland or United States
$177k/yr RemoteFull Time
5+ YOE5+ years software development experience, 5 years building scalable data pipelines on AWS, 3 years technical leadership, Bachelor's in CS/SE/IT or related, experience with TypeScript, Python, JavaScript, NodeJS, REST APIs, and metrics-driven performance tuning.
TypeScript, Python, REST APIs, JavaScript, NodeJS, AWS, Extreme Programming
3d
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Principal Algorithms Software Engineer
Boulder, Colorado, United States
$132k-$198k/yr OnsiteFull Time
5+ YOESTEM degree with relevant experience (varies by level), active U.S. Secret clearance required, Python and/or C++ and Linux experience, algorithm/state-estimation and statistical/data-analysis skills, ability to travel up to 10%.
Python, C++, Linux, grep, awk, cat, head
1w
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Software Development Engineer, Measurement, Ad Tech, and Data Science (MADS)
Boulder, Colorado, United States
$144k-$194k/yr OnsiteFull Time
3+ YOE3+ years professional software development, experience designing distributed systems, proficiency in object-oriented design and languages such as Java/C#/C++/Perl, and operational excellence for large-scale services.
Java, Lambda, Step Functions, DynamoDB, Spark, AWS Clean Rooms, SageMaker, Glue, S3, C#, C++, Perl
3d
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Software Performance Analysis Engineer
Boulder, Colorado, United States
$125k-$165k/yr OnsiteFull Time
2+ YOEExperience with Python or Matlab, Linux and common utilities, performance analysis for mathematically intensive systems, data analysis, active U.S. Secret clearance and ability to obtain TS/SCI, STEM degree preferred.
Python, Matlab, Linux, grep, awk, cat, head
1mo
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Test Engineer III – Motion Control, Honeybee Robotics, EGSE & Test Software
Longmont, Colorado, United States
$111k-$155k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
5+ YOEBachelor's in engineering, 5+ years developing EGSE/ATE and test software, proficiency with Python/LabVIEW/C#/MATLAB, experience with data acquisition and environmental testing; U.S. citizen/permanent resident/refugee/asylee required.
Electrical Ground Support Equipment (EGSE), Automated Test Equipment (ATE), Python, LabVIEW, C#, MATLAB, Git, DOORS, Jama, Vector Network Analysis (VNA), motor controllers, load cells, torque sensors, encoders, thermocouples, accelerometers, multi-channel data acquisition systems
3w
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Algorithms Software Engineer - Level 2
Boulder, Colorado, United States
$92k-$138k/yr OnsiteFull Time
0+ YOEActive U.S. Secret clearance required; Bachelor's in STEM + 2 yrs related or Master's in STEM + 0-2 yrs. Experience in algorithm design, state estimation, numerical computing, C/C++ and Python, Linux utilities, and data analysis. Willingness to travel up to 10%.
Modern C++, C/C++, Python, Linux, grep, awk, cat, head, containerization
1mo
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AI Evaluation Engineer
Bucharest or Boulder or Boston or Chicago or Glendora or Richmond or London or Auckland
lei16k-lei19k/mo HybridFull Time
5+ YOEBachelor's in CS/Data/Math, 5+ years software engineering with focus on testing/evaluation or AI/ML tooling, strong Python, experience building evaluation pipelines and LLM eval concepts, familiarity with RAG and production data pipelines.
RAGAS, LangSmith, PromptFlow, Snowflake, Python, RAG