16 quantitative software engineer jobs at 5 companies in Middletown, DE

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Quantitative Strategy Developer Internship: Summer 2027
Hong Kong or Singapore or Philadelphia
OnsiteInternship
Susquehanna International Group
Susquehanna International Group: Global quantitative trading and market making firm.
Enrolled in a Hong Kong or Singapore university (graduating 2028), pursuing a STEM degree; strong software skills in C#, C++, or Python; numerical/HPC or performance-sensitive coding experience is a plus.
C#, C++, Python, HPC
4w
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Quantitative Strategy Developer Internship: Summer 2027
Hong Kong or Singapore or Philadelphia
OnsiteInternship
Susquehanna International Group
Susquehanna International Group: Global quantitative trading firm specializing in proprietary financial markets.
Enrolled in a Hong Kong or Singapore university graduating in 2028; pursuing CS/CE/math or related STEM; strong software skills in C#, C++, or Python; numerical/HPC and performance-sensitive coding experience a plus.
C#, C++, Python
4w
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Quantitative Strategy Developer Internship: Summer 2027
Hong Kong or Philadelphia
OnsiteInternship
Susquehanna International Group
Susquehanna International Group: Global quantitative trading firm providing proprietary financial market liquidity.
Must be a Hong Kong or Singapore university student graduating in 2028, enrolled in CS/CE/math or related STEM, strong software skills in C#, C++, or Python; numerical/HPC and performance-sensitive coding experience a plus.
C#, C++, Python
1mo
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Quantitative/Data Developer | Fixed Income | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
Susquehanna International Group
Susquehanna International Group: Global quantitative trading firm providing proprietary financial market liquidity.
3+ YOE3+ years developing Python data tools; experience with NumPy and Pandas; ability to understand financial models preferred; strong communication skills; Bachelor's in CS or applied science preferred.
Python, NumPy, Pandas
1mo
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Quantitative/Data Developer | Fixed Income | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
Susquehanna International Group
Susquehanna International Group: Global quantitative trading firm specializing in proprietary financial markets.
3+ YOE3+ years developing data tools/applications in Python; experience with NumPy and Pandas; ability to understand financial models; strong communication; BS in CS or applied science preferred; quant developer experience preferred.
Python, NumPy, Pandas
1mo
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Software Engineer - TS/SCI required
Aberdeen or Edgewood
$75k-$131k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
0+ YOEBachelor's or Master's in a quantitative field, 0–10+ years software engineering experience, strong programming and systems-integration skills, familiarity with Agile/DevOps/DevSecOps and MOSA/ISA standards, and active TS/SCI required.
MOSA, ISA, Agile, DEVOPS/DEVSECOPS
4d
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Software Engineer - Secret required
Aberdeen, Maryland, United States
$112k-$196k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
Design, develop, and maintain scalable software and integrations for defense customers; active Secret clearance required; bachelor’s degree in a quantitative field; strong programming and problem-solving skills.
MOSA, ISA, Agile, DEVOPS/DEVSECOPS
1mo
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Quantitative/Data Developer | Fixed Income | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
Susquehanna International Group
Susquehanna International Group: Global quantitative trading and market making firm.
3+ YOE3+ years developing data tools in Python, experience with NumPy and Pandas, ability to understand financial models, strong communication skills, and a bachelor's in CS or applied science preferred.
Python, NumPy, Pandas
2mo
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Software Developer | C++ | ETF | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
Susquehanna International Group
Susquehanna International Group: Global quantitative trading and market making firm.
5+ YOEBachelor's in CS/Engineering/Math, 5+ years C++ development experience, strong object-oriented skills, performance/latency optimization expertise, and ability to collaborate with traders and quantitative researchers.
C++
15h
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Research Software Engineer - Robotics & Simulation (Data Science and AI Institute)
Baltimore, Maryland, United States
HybridFull Time
Johns Hopkins University
Johns Hopkins University: A private research university providing higher education and clinical healthcare.
3+ YOEMaster's in a quantitative discipline, 3+ years software development and AI/ML or data science experience, expertise in scientific software engineering, cloud/on-prem workflows, databases, and strong communication skills.
Python, C++, Docker, Singularity, RESTful, SQL, Linux, Git, CUDA, PyPI, Nvidia Issac, Nvidia ML
15h
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SuccessFactors Recruiting: Research Software Engineer - Robotics & Simulation (Data Science and AI Institute) (121856)
Baltimore, Maryland, United States
HybridFull Time
Johns Hopkins University
Johns Hopkins University: Private research university providing higher education and global research.
3+ YOEMaster's in a quantitative discipline required,3+ years software development and AI/ML or data science experience,expertise in scientific software engineering,Python or C++,containerization,SQL,Linux,Git,cloud and strong communication skills.
Python, C++, Docker, Singularity, RESTful, SQL, Linux, Git, Continuous Integration / Continuous Delivery, CUDA, PyPI, Nvidia
1mo
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Python Developer- Quant Core Data | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
Susquehanna International Group
Susquehanna International Group: Global quantitative trading and market making firm.
PhD or postdoc in a quantitative field, strong high-performance Python skills (Cython/pybind11/numba), experience with large-data analysis (polars/pandas), and ability to translate research into robust engineering solutions.
Python, Cython, pybind11, Numba, polars, pandas
1mo
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Python Developer- Quant Core Data | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
Susquehanna International Group
Susquehanna International Group: Global quantitative trading firm providing proprietary financial market liquidity.
PhD (by Summer 2026) or postdoc in a quantitative field; experience writing high-performance Python (Cython, pybind11, numba) and data analysis with polars/pandas for large datasets; ability to translate research into robust engineering solutions.
Python, Cython, pybind11, numba, polars, pandas
1mo
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Gen AI Engineer
Atlanta or Richmond or Lake Mary or Nashville or Indianapolis or Wilmington or Mason or Grand Prairie or Norfolk or United States
HybridFull Time
Elevance Health
Elevance HealthNYSE: ELV: Provides health insurance plans and integrated healthcare services.
4+ YOEBachelor's in a quantitative field (or equivalent) and 4+ years experience; advanced Python and SQL; hands-on experience with LLM/GenAI, NLP, Hugging Face, TensorFlow, Keras, PyTorch, Spark; cloud (GCP/AWS) and MLOps/model deployment experience.
Python, SQL, Hugging Face, TensorFlow, Keras, PyTorch, Spark, GCP, AWS, vLLM, Text Generation Inference, FastAPI, GPTQ, AWQ, bitsandbytes, AWS EKS, AWS ECS, GCP GKE, Azure AKS
2mo
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AI Engineer/ML Engineer - Senior Developers - AI Training - Baltimore, US
Baltimore or United States
$80/hr RemoteContract, Part Time
Prolific
Prolific: Platform connecting researchers and AI developers with verified participants.
BS/MS/PhD in CS/AI/Robotics or related quantitative field; experience building, deploying, or fine-tuning ML models; deep learning and LLM workflows (RLHF, RAG) expertise; strong analytical and auditing skills.
PyTorch, TensorFlow, Keras, Python, NumPy, Pandas, Scikit-learn, Hugging Face Transformers, AWS (SageMaker), Google Cloud (Vertex AI), Weights & Biases, LangChain, Pinecone, Milvus, Weaviate
1mo
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Python Developer- Quant Core Data | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
Susquehanna International Group
Susquehanna International Group: Global quantitative trading firm specializing in proprietary financial markets.
PhD or postdoc in a quantitative field, strong high-performance Python (Cython/pybind11/numba) and large-data analysis (polars/pandas) skills, ability to translate research into production-quality code.
Python, Cython, pybind11, numba, polars, pandas