Senior Python Engineer (Backend & Data)

Position Overview

We are partnering with an innovative, data-driven technology company to find a Senior Full Stack Engineer with a heavy emphasis on backend architecture, APIs, and cloud systems. As a key hands-on technical contributor, you will help build and scale an analytical platform during a major expansion phase. This role requires strong systems thinking and a focus on data-intensive applications, backend stability, and modern cloud deployment.

(Note: This is an individual contributor, hands-on role without direct reports, offering a hybrid work model with an on-site requirement in Oakland, CA from Tuesday through Thursday).
Key Responsibilities

• Design, develop, and maintain robust, scalable, and secure backend systems, data pipelines, and high-performance APIs using Python and FastAPI.
• Own data migration initiatives (utilizing tools like Dagster and DuckDB) while maintaining system reliability and operational continuity.
• Architect and manage cloud infrastructure on Microsoft Azure, supporting containerized services and data-intensive workflows.
• Integrate advanced capabilities, including AI-hosted chatbots and LLM-driven tools, into cloud-native analytical systems.
• Partner closely with Product and Delivery teams to translate business needs into robust, production-ready features.
• Drive long-term technical architecture, manage system versioning, and actively minimize technical debt.

Qualifications & Requirements

• Education: Bachelor's or Master's degree in Computer Engineering, Computer Science, or a related technical field.
• Experience: 5 to 7 years of professional full-time software engineering experience.
• Core Tech Stack:
  
  • Strong, non-negotiable proficiency in Python and backend development (FastAPI).
  • Solid database experience with PostgreSQL.
  • Cloud computing proficiency (Azure preferred, or AWS/Google Cloud Platform) along with containerization (Docker).
  • Experience building and deploying high-performance APIs.
• Systems Mindset: Proven track record of system design, data-intensive architecture, and managing complex migrations.
• Bonus / Preferred Experience:
  
  • Background in energy systems, carbon analytics, sustainability, or healthcare.
  • Early-stage startup or new venture experience building products from scratch.
  • Familiarity with Dagster, DuckDB, Infrastructure as Code (Terraform/Bicep), and AI/LLM integrations.

Work Environment & Logistics

• Location / Schedule: Hybrid model based in Oakland, CA, requiring on-site presence from Tuesday through Thursday.
• Role Type: Full-time, hands-on individual contributor position.

Equal Opportunity Employer / Disabled / Protected Veterans

The Know Your Rights poster is available here:
_EEOC_KnowYourRights6.12.pdf

The pay transparency policy is available here:
_%20English_formattedESQA508c.pdf

For temporary assignments lasting 13 weeks or longer, AllSTEM Connections is pleased to offer major medical, dental, vision, 401k and any statutory sick pay where required.

We are committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation for any part of the employment process, please contact your staffing representative who will reach out to our HR team.

AllSTEM Connections participates in the E-Verify program in certain locations as required by law. Learn more about the E-Verify program.
_Participation_Poster_ES.pdf

We also consider for employment qualified applicants regardless of criminal histories, consistent with legal requirements, including, if applicable, the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance. Pursuant to applicable state and municipal Fair Chance Laws and Ordinances, we will consider for employment-qualified applicants with arrest and conviction records, including, if applicable, the San Francisco Fair Chance Ordinance. For Los Angeles, CA applicants: Qualified applications with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.

Additional Skills

(none specified)

AllSTEM Representative Contact Info

Account Executive:

Giampaolo

Branch Phone:



Location:

Ontario, CA