Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior Python developer

System Soft Technologies

We are seeking a skilled and versatile senior Python Developer with 10+ experience to join our team on a W2 contract basis through System Soft Technologies . This role is designed for professionals currently authorized to work in the United States who prefer a stable, direct W2 employment structure.

The following information provides an overview of the skills, qualities, and qualifications needed for this role.

Note: This position is exclusively open to candidates eligible to work on a W2 basis. We are unable to accept C2C arrangements or process H-1B transfers for this specific opening.

Key Responsibilities

  • Design & Development: Write clean, scalable, and efficient code using Python and modern web frameworks (e.g., Django, Flask, or FastAPI).
  • API Integration: Build, maintain, and secure robust RESTful APIs and microservices.
  • Data Management: Work closely with relational (PostgreSQL, MySQL) and non-relational (MongoDB, Redis) databases to optimize query performance and data pipelines.
  • Cloud Infrastructure: Deploy and manage applications on cloud platforms such as AWS, GCP, or Azure using containerization tools like Docker and Kubernetes.
  • Collaboration: Participate in Agile/Scrum ceremonies, collaborate with cross-functional teams, and contribute to code reviews and architectural discussions.
  • Testing & Quality Assurance: Write unit and integration tests (using PyTest or Unittest) to ensure high code quality and reliability.

Required Qualifications

  • Experience: 10+ years of professional software development experience with a strong focus on Python.
  • Technical Stack:
  • Proficiency in Python core concepts, asynchronous programming, and Object-Oriented Programming (OOP).
  • Hands-on experience with modern backend frameworks (Django/Flask).
  • Familiarity with front-end technologies (JavaScript, HTML5, CSS3) is a plus.
  • Databases & Cloud: Demonstrated experience with SQL/NoSQL databases and cloud-hosted environments (AWS preferred). xhyhwjd
  • Work Authorization: Must be legally authorized to work in the United States on a W2 basis (H1B Transfer compatible with direct W2 employment through System Soft Technologies).

Vacancy posted 5 days ago
Similar jobs that could be interesting for youBased on the Senior Python developer in United, PA vacancy
  •  ...By joining our client's team as a Senior Machine Learning Engineer , you will play a pivotal...  ...-world problems in clinical research. Develop advanced ML models and LLM-powered agents...  ...at scale. You'll use technologies like Python (and Clojure), AWS services (Athena,... 
    Senior
    Remote work

    Harnham

    United, PA
    10 days ago
  •  ...Founding Senior AI/ML Engineer – Generative AI & Agentic Systems Build From Zero. Own...  ...with an ambitious AI technology startup developing a next-generation platform that...  ...production systems. ~ Strong expertise in Python, machine learning, and modern AI frameworks... 
    Senior
    Full time
    Immediate start
    Remote work

    Recruits Lab

    United, PA
    2 days ago
  •  ...this opportunity below, as well as required skills. Design, build, and maintain user-facing features using React Native. Develop secure, scalable backend services and APIs using Java. Integrate front-end components with backend services using REST APIs and... 
    Suggested

    ShrinQ Consulting Group Inc

    United, PA
    5 days ago
  •  ...ML Engineer with 6+ years of experience and strong expertise in Python, LLMs, Generative AI, and Agentic AI. The role focuses on...  ...multi-agent workflows. Roles & Responsibilities Design, develop, and deploy AI/ML solutions using Python and modern AI frameworks... 
    Senior
    Flexible hours

    enableIT

    United, PA
    4 days ago
  •  ...SENIOR DATA SCIENTIST If you think you are the right match for the following opportunity...  ...to lead state-of-the-art research and develop advanced multimodal imaging models for our...  ...GCP). Solid engineering foundation in Python, GPU computing, Docker/Kubernetes , and... 
    Senior

    AMRADNET US

    United, PA
    3 days ago
  • You know Adobe. You know consulting. And you know how good this work can be when it's done right. Check below to see if you have what is needed for this opportunity, and if so, make an application asap. Better Digital hires exceptional Adobe practitioners throughout...
    Senior
    Immediate start

    Better Digital

    United, PA
    10 days ago
  •  ...integrity robotics and automation safety programmes. This is a senior, client-facing technical leadership role supporting the...  ...hazard analysis, risk assessment, and safety lifecycle delivery Developing safety requirements aligned to IEC 61508, ISO 13849, 13482, and... 
    Senior
    Remote work
    Flexible hours

    Akkar

    United, PA
    2 days ago
  • $200k - $400k

     ...team of engineers and researchers who perform the full stack of model training to improve models every day. The company is developing advanced AI systems that can operate directly at the edge, bringing high-performance AI into demanding real-world environments without... 
    Senior
    Remote work
    Work from home

    Attis

    United, PA
    5 days ago
  •  ...# PhD in Computer Science, Artificial Intelligence, Applied Mathematics, or Computational Materials Science. # Proficiency in Python and mainstream deep-learning frameworks (PyTorch, TensorFlow); materials-informatics or battery data-mining experience a plus.... 
    Senior

    Ampace

    United, PA
    3 days ago
  •  ...We are seeking a Senior MLOps Engineer to join a centralized Data & Analytics Center of...  ...strategies to resolve production model issues. Develop automated monitoring, alerting, and...  ...related field. ~ Strong proficiency in Python and SQL. ~ Experience deploying,... 
    Senior

    Robert Half

    United, PA
    4 days ago
  • $120k - $200k

     ...Our client is hiring a Senior AI Data Engineer (Agentic Systems) to build agentic AI systems...  ...that map complex ERP relationships Develop agents that analyze and map legacy schemas...  ...tuning Strong experience in Python, SQL, and modern data systems Experience... 
    Senior

    ProSearch

    United, PA
    5 days ago
  •  ...We are looking for a highly experienced Senior DFT MBIST Contractor to join our SoC Design...  ...and verify MBIST at the top level. • Develop, execute, and debug MBIST simulations using...  ...Experience with scripting (Tcl, Perl, or Python) to automate MBIST flows and debug. •... 
    Senior
    For contractors

    Cyient Semiconductors

    United, PA
    4 days ago
  •  ...meaningful impact in the financial advisory industry, we encourage you to apply to join us on our exciting journey! The Role As a Senior or Staff Quantitative Engineer, you'll build and own the optimizer at the center of the Seeds platform. Its inputs are accounts,... 
    Senior
    Remote work

    Seeds

    United, PA
    4 days ago
  •  ...Senior Data Engineer (B2B) Permanent, Direct Hire 100% Remote within the US Increase your chances of reaching the interview stage...  ..., along with intermediate to advanced programming skills in Python. • Strong experience with dbt or an equivalent transformation... 
    Senior
    Permanent employment
    Remote work

    Dale Workforce Solutions

    United, PA
    4 days ago
  • $140k - $210k

     ...Senior Machine Learning Engineer Remote, United States Skills, Experience, Qualifications...  ...Learning organization responsible for developing and operating the models that power real...  ...machine learning workloads using Python, SQL, and Spark Own models throughout... 
    Senior
    Permanent employment
    Temporary work
    H1b
    Remote work
    Visa sponsorship
    Work visa

    Harnham

    United, PA
    3 days ago
  •  ...expanding its quantitative analytics team and is looking for a Senior Associate focused on Battery Energy Storage Systems (BESS) Modeling...  ...for: ~3+ years of quantitative modeling experience ~ Strong Python programming skills ~ Experience with optimization tools (... 
    Senior

    Talisman

    United, PA
    4 days ago
  •  ...candidates. ScolerTec is seeking multiple Senior Data Migration Engineers to support a...  ...conversion, and archival activities. Develop migration strategies, schedules,...  ...validation and reconciliation using SQL, Python, Bash, or similar technologies Design... 
    Senior
    Remote work

    ScolerTec Inc

    United, PA
    4 days ago
  •  ...set research direction, inform data collection and annotation, develop the core modeling architectures, and work with a high-caliber team...  ...in a tight partnership with product and engineering. As a senior member of the team you'll recruit, mentor, and set the bar for... 
    Senior

    Chronicle Media

    United, PA
    3 days ago
  •  ...below to send your CV and application.RemoteOur client seeks a Senior Information Security Engineer to operate and maintain an LLM-based...  ...and make guided modifications to Terraform and scripting in Python or equivalent.Basic understanding of application security concepts... 
    Senior
    Shift work
    Night shift
    Rotating shift

    Eliassen Group

    United, PA
    3 days ago
  •  ...recognized management and technology consultancy to identify talented Senior Data Engineers. Our client specializes in delivering...  ...Solid programming skills in SQL and scripting languages like Python or PowerShell for automation. Experience with cloud data platforms... 
    Senior
    Permanent employment
    Full time
    Remote work
    Monday to Thursday
    Afternoon shift

    OneUS Technologies LLC

    United, PA
    4 days ago
  • $220k - $240k

     ...Senior Software Engineer - HealthTech Like the look of this opportunity Make sure to...  ...the existing platform. Tech Stack Python | TypeScript | AWS | PostgreSQL | React...  ...applications using Python and TypeScript Develop backend services, APIs and integrations within... 
    Senior

    PROJECTUS

    United, PA
    7 days ago
  • $140k - $160k

     ...them a data change, not an engineering project. This is a Senior-level role: you set the direction for this layer. What you'...  ...rebuild it—or not—and brought other engineers along. Production Python and care with regulated data. You write typed, tested... 
    Senior
    Remote work

    CuroAI

    United, PA
    5 days ago
  • $210k

     ...Runtime is hiring on behalf of our client, a fast-growing AI developer tools company redefining how the world's most ambitious engineering...  ...this team is AI-first and means it What you'll bring: Python and TypeScript - production grade, not tutorial level Real... 
    Senior
    Remote work

    Runtime

    United, PA
    5 days ago
  •  ...Senior Applied AI Research Engineer Voicegain · Fully remote · Compensation competitive for your market Below covers everything...  ...done real work in at least one. A real engineer. Excellent Python. You can navigate a large Java or C++ codebase and ship production... 
    Senior
    Remote work

    Voicegain

    United, PA
    8 days ago
  • $250k - $275k

     ...Senior Technical Account Manager Identity Security Startup Location: United States...  ...that feed directly into the platform Develop novel customer use cases and operational...  ...and security posture management ~ Strong Python scripting and automation skills ~ A clear... 
    Senior
    Remote work

    Scout Global

    United, PA
    3 days ago
  •  ...devices (SiC/GaN); and device-to-system multiphysics models. # Develop and optimize advanced control algorithms — digital, nonlinear,...  .../MOSFET/SiC/GaN), magnetics, and gate-drive knowledge; C/C++/Python. ???(Ampace)??????????????,???????????????????,??????????... 
    Senior
    Internship

    Ampace

    United, PA
    3 days ago
  •  ...hardware design and verification processes. Responsibilities: Develop and implement testbenches using System Verilog and UVM....  ...oriented environment. Knowledge of scripting languages such as Python or Perl. Equal Opportunity Statement: We are an equal... 
    Senior

    Mirafra Technologies

    United, PA
    4 days ago
  • $150k - $230k

     ...Senior Application Security EngineerRemote across the US and Canada | Full-time | Salary...  ....js and React application, alongside Python, Terraform, AWS and Cloudflare infrastructure...  ...a credible software engineer. Someone developers will want involved before something... 
    Senior
    Full time
    Remote work

    nine dots

    United, PA
    3 days ago
  •  ...property, credentials, and other business-critical information. Develop and maintain inventories and data-flow mappings that show where...  ...Ability to write automation or production-quality scripts in Python, PowerShell, Go, or a similar language. Experience tuning... 
    Senior
    Permanent employment
    Contract work
    Remote work

    I.T. Solutions, Inc.

    United, PA
    4 days ago
  •  ...The Senior AI & Data Platform Engineer is responsible for building, owning, and supporting...  ...of data platform work currently being developed by an external consulting partner, evaluate...  ...landscape changes. Advanced proficiency in Python and SQL, and in modern software... 
    Senior
    For contractors
    Work experience placement
    Casual work
    Work at office
    Immediate start
    Remote work

    J. Westling & Co

    United, PA
    4 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Python developer. Be the first to apply!