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Python Software Developer Jobs in Holtsville, NY, US
170+ python software developer jobs from 83 companies hiring in Holtsville, NY, US.
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Software Engineer III- Python API / Agentic Development
New York, New York, United States
$133k-$185k/yr OnsiteFull Time
3+ YOE3+ years software engineering; Python API development; experience with Agentic systems; SDLC knowledge; CI/CD and Agile; cloud/AI familiarity.
Python, APIs, Agentic, ADK, Langchain, Langraph, RASA, AWS
2mo
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Software Engineer
Stratford or Owego
HybridFull Time
2+ YOEBachelor's degree in computer engineering, computer science, software engineering or related field; minimum 2 years of software development experience or master's with no experience; embedded development or software architecture experience; proficient in C/C++ and Python; DO-178C, Agile/DevSecOps familiarity; strong communication.
C/C++, Python, Linux, GitLab, Jira, Confluence, Atlassian, CI/CD tools
3w
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AWS Senior Lead Software Engineer- Java / Python
New York, New York, United States
$171k-$260k/yr OnsiteFull Time
5+ YOE5+ years in software engineering; experience delivering system design, development, testing, and operations; proficient in SQL and Java, Spring Boot, microservices, or Python API development; strong AWS experience with services like Step Functions, S3, SQS, Lambda; exposure to data lakes and ML concepts; automation and CD practices.
Java, Python, Spring Boot, Microservices, SQL, AWS, SageMaker, Bedrock, S3, SQS, Lambda, EMR, Glue, Spark, Snowflake, Databricks, TensorFlow, PyTorch, scikit-learn
1w
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Software Engineer
Stamford, Connecticut, United States
$105k-$145k/yr HybridFull Time
3+ YOE3+ years in software development; Go/Python; cloud (AWS/GCP); containers (Kubernetes, Docker); CI/CD; SRE; Agile; CDN knowledge; AI tooling.
Go, Python, AWS, GCP, Kubernetes, Docker, CI/CD, SRE, Agile, CDN, AI tooling
1mo
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Software Engineer (DevOps)
New York, New York, United States
$115k-$135k/yr OnsiteFull Time
2+ YOE2-5 years in software engineering with DevOps, CI/CD, Azure, React/TypeScript, Python (FastAPI); enterprise app development experience.
React, TypeScript, Python, FastAPI, Azure DevOps, Azure, Docker, RESTful APIs, Git, PostHog, Sentry, Unit testing, CI/CD
1mo
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Embedded Software Engineer
Hawthorne, New York, United States
$110k-$150k/yr OnsiteFull Time
5+ YOE5+ years embedded software development; C/C++, Python; Linux; RTOS; IPC; hardware interfaces; Agile; ROS/YARP a plus
C/C++, Python, Linux, Git, RTOS, TCP/IP, IDE, ROS, YARP, MODBUS
5d
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Junior Software Engineer
Bronx, New York, United States
$110k-$140k/yr HybridFull Time
2+ YOE2+ years software engineering; full-stack, Python/React; strong fundamentals; self-directed; healthcare experience a plus.
Python, FastAPI, React, TypeScript, MSSQL, Redis, Azure, Terraform
3w
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Senior Software Engineer – Quantitative Research
Greenwich, Connecticut, United States
$175k-$200k/yr OnsiteFull Time
7+ YOE7+ years software engineering; Python; quantitative finance knowledge; design patterns; testing; strong communication.
Python, AWS, Data ingestion, Software development tools
2w
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Software Engineer
Melville, New York, United States
OnsiteFull Time
2+ YOEBachelor’s or Master’s in Computer/Software/Electrical Engineering; 2+ years embedded C/C++ for embedded apps; Linux for ARM; TCP/UDP networking; Python; Git; CI/CD; LabView/Visual Studio; design/driver firmware; strong problem-solving.
C++, Linux, Python, C#, LabView, Visual Studio, Git, C, CMake
1mo
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Software Engineer
New York, New York, United States
OnsiteFull Time
7+ YOE7-10+ years in C++ development; strong C++, STL, data structures, templates; modern C++ (C++11-20); TCP/IP; Linux; unit testing; code reviews; CI; Python/Fix Protocol preferred.
C++, STL, TCP/IP, UDP/Multicast, Linux, Python, Fix Protocol, Unit testing, Continuous Integration
1mo
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Software Engineer (AI/ML Interface Development)
San Diego or Nashua or Greenlawn or Durham
$92k-$157k/yr HybridFull Time
4+ YOEBS in CS/Software Engineering; 4+ years in software development; strong AI/ML interface experience; proficiency in Python, Java, C++; API/microservices; experience with LLMs and vector databases; Docker/Kubernetes; CI/CD; US Secret Clearance.
Python, Java, C++, Docker, Kubernetes, APIs, CI/CD, LLMs, vector databases
2w
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Electronic Execution Technology Senior Software Developer
Rowayton, Connecticut, United States
$150k-$240k/yr OnsiteFull Time
5+ YOE5–10 years in software development; C#, OOP, concurrency, real-time systems; FIX/Electronic Trading; SDLC; Appia FIX Engine familiarity; Python/SQL preferred; strong communication.
C#, Python, SQL, FIX Protocol, Appia FIX Engine, SOA
4d
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Backend Software Developer
Greenwich, Connecticut, United States
HybridFull Time
4+ YOEBachelor's degree in computer science or related field; 4+ years in backend development with Java; experience with Spring, Oracle, REST, Python; financial services experience preferred.
Java, Spring, Spring Boot, JDBC, Oracle, PL/SQL, REST, JMS, ActiveMQ, Git, Python, Shell Scripting
2mo
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Software Engineer II
Brooklyn or United States
$105k-$125k/yr RemoteFull Time
2+ YOE2-4 years software engineering; full-stack; Python/SQL; Java or modern SPA; REST; strong problem solving.
Python, SQL, Java, React, Vue, Angular, REST, AWS, S3, MongoDB, DBT, Snowflake
2w
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Software Engineer
Bronx, New York, United States
$150k-$180k/yr HybridFull Time
2+ YOE2+ years software engineering; full-stack; self-directed; tests; ownership; healthcare/healthtech interest encouraged.
Python, FastAPI, React, TypeScript, MSSQL, Redis, Azure, Terraform
1d
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Software Engineer II
Glendale or New York or Seattle
$118k-$165k/yr HybridFull Time
3+ YOE3+ years software engineering; backend development; distributed systems; AWS; Kubernetes; observability; strong collaboration.
Go, Java, Python, Node.js, AWS, Kubernetes, Grafana, Prometheus, OpenTelemetry, Datadog, New Relic, OpenSearch
2mo
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Principal Software Engineer
New York or Stamford or San Ramon or San Mateo
$165k-$222k/yr HybridFull Time
15+ YOE15+ years software development, 10+ years backend Python, 5+ years leadership, Master's in CS/Engineering, strong SQL/NoSQL, API design, Docker/Kubernetes, Linux backend.
SQL, NoSQL, APIs, gRPC, JSON/RPC, REST, Docker, Kubernetes, Linux
1mo
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Software Engineer - Full Stack Web Developer
Norwalk, Connecticut, United States
$100k-$128k/yr HybridFull Time
3+ YOE3-5 years full stack web development; AWS experience; Python, JavaScript/TypeScript; Django/REST APIs; React; PostgreSQL/TimescaleDB; CI/CD; Terraform.
AWS, Django, DRF, React, Python, TypeScript, PostgreSQL, TimescaleDB, GitHub Actions, Terraform, CI/CD, Networking Protocols, MQTT
1mo
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Senior Quantum Software Engineer
New Haven, Connecticut, United States
$124k-$187k/yr OnsiteFull Time
5+ YOEBS or higher in science/engineering; 5+ years software development; strong Python; experience in quantum computing or scientific computing; troubleshooting; Git; excellent communication.
Python, Git, Profilers, Scientific computing tools
3w
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Software Engineer, AI Automation
Brooklyn, New York, United States
$150k-$190k/yr OnsiteFull Time
3+ YOE3+ years of experience building data-intensive software; experience deploying AI agents in production; proficient in Python, SQL; strong problem solving; able to work independently and in a team.
Python, SQL, Agent SDK, Messages API, LangGraph
4d
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Lead Software Engineer
New York, New York, United States
$175k-$250k/yr OnsiteFull Time
5+ YOE5+ years in full-stack development; startup experience a plus; strong JS/TS, React, Python, SQL, CI/CD, Git; experience with Gen AI models.
JavaScript, TypeScript, React, Python, SQL, CI/CD, Git, OpenAI/Anthropic Gen AI models
1mo
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Software Engineer (MESA), Center for Computational Astrophysics
New York, New York, United States
$150k-$185k/yr OnsiteFull Time
3+ YOE3+ years software development in a research context; proficiency in Fortran/C/C++, Git, OpenMP/MPI; experience with Python/Julia/MATLAB; documentation, project management, and collaborative software practices.
Fortran, C, C++, Python, Julia, MATLAB, Git, OpenMP, MPI, CUDA
1mo
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Senior Software Engineer
Melville, New York, United States
$105k-$183k/yr OnsiteFull Time
Northwell Health: Provides clinical healthcare services through a hospital network.
3+ YOEBachelor's degree; 3-5 years of relevant experience; full-stack development; cloud and data pipeline experience preferred.
Azure, GCP, Terraform, Airflow, OpenLineage, OpenMetadata, BigQuery, CloudSQL, Pub/Sub, GKE, Next.js, Python, JavaScript, React, FastAPI
1w
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Sr. Software Engineer
New York City, New York, United States
$170k-$205k/yr HybridFull Time
Experience building AI platforms with LLMs, production AI features, and full-stack development (React, GraphQL, server-side languages). Collaborates with legal/compliance; mentorship of engineers.
React, GraphQL, Ruby, Java, TypeScript, C#, Python
1mo
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Senior Software Engineer, Infrastructure & Developer Tooling
New York City or Glen Cove
$170k-$220k/yr HybridFull Time
7+ YOE1+ Mgmt7+ years software engineering; leadership in DevOps/infrastructure; strong CI/CD, distributed systems, and tooling; cloud platforms (AWS/GCP/Azure) and Kubernetes; security best practices; observability and monitoring; Python/NodeJS/TypeScript; robotics interest a plus.
Python, NodeJS, TypeScript, React, Docker, Kubernetes, Terraform, Postgres, Cloudflare
1mo
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Senior Embedded Software Engineer
Danbury, Connecticut, United States
OnsiteFull Time
8+ YOE8+ years in software engineering with low-level embedded systems, hardware interfacing, C/C++, Python; strong communication; teamwork; QA processes.
C, C++, Python, Linux, Windows
2mo
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Software Engineer II
Bohemia, New York, United States
$78k-$105k/yr OnsiteFull Time
2+ YOEDesign, code, test software; collaborate; mentor interns; U.S. Person status required.
Python, Unity, Cpputest, Google Test, Bullseye, C#, C, C++, GCC, G++, JTAG, Oscilloscope, Logic Analyzer, Multimeter
2mo
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Staff Software Engineer
New Haven, Connecticut, United States
RemoteFull Time
5+ YOE5+ years backend/full-stack experience; strong Python/FastAPI; AWS; AI tooling; RESTful APIs; DevOps mindset.
Python, FastAPI, PostgreSQL, AWS, GitHub Actions, Docker, AWS CDK, TypeScript, JavaScript, React, Next.js
1w
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Software Developer / IT - Internal Tools
Long Island City, New York, United States
$66k-$70k/yr OnsiteFull Time
1+ YOE1–3 years coding experience; proficient in JavaScript or Python; strong Windows/Chrome troubleshooting and WiFi; ability to read AI-generated code; Git and basic deployment; independent work in fast-paced environment.
JavaScript, Python, Git, Windows, WiFi, Google Chrome
2mo
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Senior Software Engineer - Intelligent Document Processing
Hartford or Danbury or Charlotte or New York or Columbus or Chicago
$137k-$206k/yr HybridFull Time
5+ YOE5+ years software engineering; strong Python and .NET or Java; cloud-native AWS; CI/CD and infrastructure-as-code; distributed systems.
Python, .NET, Java, AWS, Docker, Kubernetes, CI/CD, Infrastructure as Code, OCR, NLP
2w
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Software Engineer
Melville, New York, United States
$115k-$150k/yr OnsiteFull Time
3+ YOESoftware development with backend, data warehousing, SQL, BI, and AI capabilities; experience with BST Global or similar ERP; Python, C, Ruby, and web development.
Visual Studio, C, Python, Ruby, SQL, Power BI, BST Global, APIs, Git
6d
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Senior Software Engineer I
San Francisco or Denver or New York City
$200k-$230k/yr HybridFull Time
3+ YOE3–5+ years of OO development (TypeScript, C#, Java); Python for data tasks; React + Tailwind; data architectures; private markets data; CI/CD; cloud platforms; Git; Agile.
TypeScript, C#, Java, Python, React, TailwindCSS, PostgreSQL, AWS, Azure, GCP, Git, GitHub, Kafka, WebSockets, JIRA, CI/CD, Data orchestration, Docker, Kubernetes
3w
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Staff Software Engineer — Search Platform, Ingestion & Indexing
Eagan or Frisco or Brooklyn or Toronto or Ann Arbor
HybridFull Time
8+ YOE8+ years software engineering; distributed streaming and search platforms; Vespa/OpenSearch; Python; AWS; production ownership; on-call reliability.
Kafka, Vespa, OpenSearch, Elasticsearch, Python, AWS, Terraform, AWS CDK, DynamoDB, Protobuf, Kafk a
2w
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Software Development Engineer III (Bethpage, NY, US, 11714)
Bethpage, New York, United States
$134k-$220k/yr HybridFull Time
7+ YOEBachelor’s degree in computer science; 7+ years software development; strong communication; Python, JavaScript, Git, Node.js; Google Cloud; prompt engineering; Dialogflow; NY or Dallas/Fort Worth hybrid.
Python, JavaScript, Git, Node.js, Code Blocks, Google Cloud Platform, Dialogflow, Prompt engineering
1mo
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Software Engineer II
Fort Lee, New Jersey, United States
$130k-$170k/yr HybridFull Time
4+ YOE4+ years of enterprise system development; 2+ years in C#; 2+ years SQL; experience with AI-assisted code generation; EF/NHibernate; AWS; Docker; Kubernetes; strong communication; knowledge of DDD; cloud architecture.
C#, .NET, Python, JavaScript, TypeScript, PostgreSQL, SQL Server, AWS, Docker, Kubernetes, Entity Framework, NHibernate
1w
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Software Engineer - Early Career (USA)
Stamford, Connecticut, United States
$130k-$175k/yr OnsiteFull Time
BS/MS in Computer Science or related STEM; strong data structures, algorithms, OOP; proficient in C++, C, Python, Java, or Rust; Linux familiarity; strong problem-solving and quick learning in a collaborative team.
C++, C, Python, Java, Rust, Linux
2mo
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Senior Software Engineer - Analytics Middle Office
Austin or Chicago or Greenwich or New York City
$200k-$250k/yr HybridFull Time
Senior software engineer with experience in CI/CD, cloud or on-prem deployments, and multiple programming languages.
GitHub Actions, TeamCity, Concourse, Python, Go, Java, Ruby, Kubernetes, Cloud, On-Premises
1mo
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Senior Software Engineer - Client Portal
Brooklyn, New York, United States
$145k-$175k/yr OnsiteFull Time
Senior full-stack engineer with Python (FastAPI), React/React Native, Expo, and AWS; strong emphasis on code quality, testing, and collaboration.
FastAPI, Python, React, React Native, Expo, AWS
2mo
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Senior Staff Software Engineer
Boston or Brooklyn or San Francisco or Washington
$225k-$265k/yr HybridFull Time
12+ YOE12+ years backend or data-driven software; cloud deployments; lead engineers; strong communication; ownership of architecture and delivery.
Python, TypeScript, SQL, Docker, Git, Kubernetes, FastAPI, AWS, Azure, MLFlow, Temporal, Postgres, Databricks, OpenSearch
2mo
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Senior Software Engineer – AI Tools | Data Engineering | Experienced Hire
New York, New York, United States
$225k-$250k/yr OnsiteFull Time
5+ YOE5–10+ years software engineering; Python expert; experience building AI agents; RAG; LangChain; secure systems; independent work in fast-evolving space.
Python, Async, LangChain, LangGraph, Pinecone, Chroma, pgvector, APIs, shell, LLMs
HiringCafe market data
Python Software Developer Jobs market signals in Holtsville, NY, 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
170+
Hiring companies
83
Fresh sample
47% new in 30d
Salary visibility
85% show pay
Companies appearing in this market
JPMorgan ChaseD-Wave QuantumLockheed MartinOptimumAQR Capital ManagementBayview Asset ManagementClarapathMotorola Solutions
Work location mix in visible results
Onsite: 35Hybrid: 34Remote: 4