Python (Panda, NumPy) jobs

Senior Software Engineer

Box · Posted Nov 9, 2026

Redwood City, California, United States
On-site
Full-time · Senior
$199K–$248K per year
5+ years

Apply with RefersoAI Apply on careers page

Lead design, build, and operate highly-available, scalable, and resilient distributed backend services that form the core of Box's platform.

Compensation

$198,500—$248,000 USD

Responsibilities

Lead design, build, and operate highly-available, scalable, and resilient distributed backend services
Develop systems for managing data across multiple geographic regions, solving complex challenges related to data sovereignty and compliance
Collaborate with team, product managers and other engineering teams to define and implement APIs and services
Write clean, maintainable, and well-tested code, and participate in code and design reviews
Mentor other engineers on the team

Requirements

BS in Computer Science or related technical field
Nice to have: product-minded engineering
Nice to have: data-intensive applications
Nice to have: search technologies
Nice to have: Elasticsearch

See full job description

Software Engineer, Internship - 2027

Brex · Posted Nov 9, 2026

Open

Remote, Brazil
Remote
Internship · Intern
0+ years

Apply with RefersoAI Apply on careers page

Build products, services, and infrastructure for Brex’s financial software platform as an intern.

Responsibilities

Build solutions that drive direct business impact and shape long‑term technical vision
Learn and push the frontier of providing the best financial software experience
Be metric and data‑driven and think creatively to help Brex scale
Collaborate with product, design, and operations experts

Requirements

BA/BS in Computer Science or Computer Engineering or Software Engineering
Nice to have: product design collaboration
Nice to have: writing skills
Nice to have: proactive approach
Nice to have: corporate financial systems or concepts

Skills

CS fundamentals backend programming languages Java Kotlin Python SQL NoSQL databases cloud computing systems & services functional programming languages Java Kotlin Python SQL NoSQL cloud computing services

See full job description

Staff Data Scientist, Credit Policy

Block, Inc. · Posted Nov 9, 2026

Open

California, United States
Full-time · Senior
$198K–$297K per year
8+ years

Apply with RefersoAI Apply on careers page

Lead credit policy governance and experimentation for Square Financial Services’ credit products.

Compensation

$198,000—$297,000 USD

Responsibilities

Apply a rigorous scientific mindset to underwriting new customer segments
Own credit policy governance and reporting
Propose and design experiments for credit products
Review experiment designs proposed by partner teams
Form policy guidelines and frameworks

Requirements

Bachelor's degree in a technical field
Master's degree in a technical field
PhD in a technical field

Skills

SQL Python Statistical analysis Experiment design Data visualization

Benefits

Remote work
Medical insurance
Flexible time off
Retirement savings plans
Modern family planning

See full job description

Measurement Science Manager

Instacart · Posted Nov 9, 2026

Open

Remote, Canada +3 more
Remote
Full-time · Mid
CA$118K–CA$125K per year
4+ years

Apply with RefersoAI Apply on careers page

Lead measurement science initiatives, design experiments, and partner with advertisers to deliver causal insights and strategic recommendations.

Locations (4)

Ontario, Canada
Alberta, Canada
British Columbia, Canada
Nova Scotia, Canada

Compensation

CAN $118,000—$124,500 CAD

Responsibilities

Design and deliver A/B tests, holdouts, and incrementality studies to demonstrate ad value.
Partner with advertisers to shape media measurement approaches and resolve complex challenges.
Develop custom code, dashboards, and self‑service tools for stakeholders.
Translate analytics insights into strategic recommendations that drive business outcomes.

Requirements

Bachelor's degree in a quantitative field such as Engineering, Mathematics/Statistics, Finance, Economics or Business
Nice to have: Lift measurement studies
Nice to have: Sales team leadership
Nice to have: Ad auction mechanics
Nice to have: Targeting algorithms

Skills

Statistical data analytics A/B testing Holdout designs Incrementality measurement Tableau Mode Excel SQL Python R

Benefits

Market‑competitive compensation
Equity grant
Annual refresh grants
Flex First remote work policy

See full job description

Senior Software Engineer, Backend (Trust & Safety)

Affirm · Posted Nov 9, 2026

Open

Remote, Canada
Remote
Full-time · Senior
CA$153K–CA$213K per year
4+ years

Apply with RefersoAI Apply on careers page

Lead backend engineering for Trust & Safety, owning quarterly goals, driving technical design, and ensuring system reliability.

Compensation

CAN base pay range per year: $153,000 - $213,000 CAD

Responsibilities

Own and deliver quarterly goals for the team
Lead engineers through ambiguity to solve open-ended problems
Collaborate with product, design, and analytics on product development lifecycle
Identify and solve project, process, technology or business issues
Support operations and availability of team artifacts, including on-call efforts

Skills

Python Kotlin AWS MySQL Kubernetes

Benefits

Health coverage at no cost
Spending stipends
Flexible time off
Employee stock purchase plan

See full job description

Senior Software Engineer, Backend (Trust & Safety)

Affirm · Posted Nov 9, 2026

Open

Remote, United States
Remote
Full-time · Senior
$173K–$255K per year
4+ years

Apply with RefersoAI Apply on careers page

Senior backend engineering role focused on Trust & Safety to protect consumers and merchants from fraud and abuse using real-time systems.

Compensation

USA Pacific base pay range (CA, WA, NY, NJ, CT): $195,000 - $255,000. USA Sapphire base pay range (all other U.S. states): $173,000 - $233,000

Responsibilities

Owning and delivering quarterly goals for the team
Leading engineers through ambiguity to solve open-ended problems
Collaborating with product management, design & analytics in the product development lifecycle
Proactively identifying and solving project, process, technology, or business issues
Supporting operations and availability of team artifacts through metrics monitoring

Requirements

Bachelor’s degree in a related field or equivalent practical experience

Skills

Python Kotlin AWS MySQL Kubernetes Distributed systems

Benefits

100% subsidized medical, dental and vision coverage
Monthly tech and wellness spending stipends
Flexible time off
Employee stock purchase plan (ESPP)

See full job description

Senior Software Engineer, Backend (Consumer)

Affirm · Posted Nov 9, 2026

Open

Remote, Canada +8 more
Remote
Full-time · Senior
CA$153K–CA$213K per year
4+ years

Apply with RefersoAI Apply on careers page

Consumer Engineering builds the Affirm experience millions of people use to pay over time, including the Affirm app, web checkout, and the account tools.

Locations (9)

Alberta, Canada
British Columbia, Canada
Manitoba, Canada
New Brunswick, Canada
Newfoundland and Labrador, Canada
Nova Scotia, Canada

Show all 9 locations

Ontario, Canada
Prince Edward Island, Canada
Saskatchewan, Canada

Compensation

CAN base pay range per year: $153,000 - $213,000 CAD

Responsibilities

Owning and delivering quarterly goals for the team
Leading engineers on team through ambiguity to solve open-ended problems
Collaborating with product management, design & analytics throughout development lifecycle
Participating in ideation, articulating technical constraints, and partnering on decisions that properly consider risks and trade-offs
Identifying project technology or business issues

Skills

Python Kotlin Backend systems Distributed systems AWS MySQL Kubernetes

Benefits

Health coverage at no cost (100% of premiums for employees and dependents)
Monthly stipends for tech setup, health and wellness spending
Flexible time off
Generous holiday calendars
Employee stock purchase plan (ESPP)

See full job description

Senior Software Engineer, Backend (Consumer)

Affirm · Posted Nov 9, 2026

Open

Remote, United States
Remote
Full-time · Senior
$173K–$255K per year
4+ years

Apply with RefersoAI Apply on careers page

Lead backend engineering for the consumer-facing payment experience, owning quarterly goals, driving technical excellence, and fostering a culture of quality and ownership.

Compensation

USA Pacific base pay range (CA, WA, NY, NJ, CT): $195,000 - $255,000 USA Sapphire base pay range (all other U.S. states): $173,000 - $233,000

Responsibilities

Own and deliver quarterly goals for the team
Lead engineers through ambiguity to solve open-ended problems
Collaborate with product, design, and analytics to articulate technical constraints and make decisions
Identify and solve project, process, technology or business issues
Support operations and availability of team artifacts, including metrics and on-call efforts

Requirements

Bachelor’s degree in a related field

Skills

Python Kotlin AWS MySQL Kubernetes

Benefits

Health coverage at no cost
Monthly tech spending stipends
Flexible time off and generous holiday calendars
Employee stock purchase plan (ESPP)

See full job description

AI Programmer Intern

Epic Games · Posted Nov 9, 2026

Open

Cary, North Carolina, United States
Internship · Intern
0+ years

Apply with RefersoAI Apply on careers page

Research Engineering Intern focused on machine learning and AI for Unreal Engine.

Responsibilities

Assist with prototyping machine learning and generative approaches for game content creation
Support experiments by preparing data, running tests, collecting results, and documenting observations
Assist with implementing and testing research concepts using Python and relevant machine learning tools
Read and discuss research papers with team members
Work with mentor and team to support ongoing research and development projects

Requirements

Bachelor's or Master's degree program in Computer Science, Machine Learning, Mathematics, Engineering, or related discipline
Nice to have: Real-time graphics
Nice to have: Computer vision
Nice to have: Machine learning
Nice to have: Animation

Skills

Python C++ (plus)PyTorch or TensorFlow Machine learning concepts Unreal Engine (plus)PyTorch TensorFlow

See full job description

AI Engineer I/II/III

EQT Corporation · Posted Nov 9, 2026

Open

Remote, United States
Remote
3+ years

Apply with RefersoAI Apply on careers page

The AI Engineer will build and maintain a fleet of AI agents working alongside people, using Microsoft Foundry, Salesforce, and Azure.

Compensation

Remote work is being considered for this role excluding the following states: California, Connecticut, Delaware, Illinois, Indiana, Louisiana, Massachusetts, Michigan, New Jersey, New York, and Tennessee unless willing to relocate.

Responsibilities

Build and maintain shared agent tools and capabilities.
Configure Foundry prompt agents: instructions, model selection, tool assignments, permissions, and guardrails, ready for others to test and tune.
Customize and extend tools when an agent needs something the shared set doesn't yet cover.
Partner with AI Specialists and domain experts as they test against real cases, and coach them on prompt design and evaluation.
Deploy agents and monitor the fleet through the Foundry control plane: evaluations, monitoring and alerts, audit trail, and cost.

Requirements

Bachelor's degree in a technical discipline (computer science, engineering, information systems, or similar), or an equivalent combination of education and experience.
Nice to have: Microsoft Foundry (Azure AI Foundry)
Nice to have: Model Context Protocol (MCP)
Nice to have: LangGraph
Nice to have: Semantic Kernel

Skills

Python git code review testing APIs LLM-based agents prompt design tool calling retrieval Azure SQL Salesforce Databricks Microsoft Foundry LangGraph Semantic Kernel

See full job description

Senior Software Engineer

Box · Posted Nov 9, 2026

Open

Redwood City, California, United States
On-site
Full-time · Senior
$199K–$248K per year
5+ years

Apply with RefersoAI Apply on careers page

Lead design, build, and operate highly-available, scalable, and resilient distributed backend services that form the core of Box's platform.

Compensation

$198,500—$248,000 USD

Responsibilities

Lead design, build, and operate highly-available, scalable, and resilient distributed backend services
Develop systems for managing data across multiple geographic regions, solving complex challenges related to data sovereignty and compliance
Collaborate with team, product managers and other engineering teams to define and implement APIs and services
Write clean, maintainable, and well-tested code, and participate in code and design reviews
Mentor other engineers on the team

Requirements

BS in Computer Science or related technical field
Nice to have: product-minded engineering
Nice to have: data-intensive applications
Nice to have: search technologies
Nice to have: Elasticsearch

See full job description

Software Engineer, Internship - 2027

Brex · Posted Nov 9, 2026

Open

Remote, Brazil
Remote
Internship · Intern
0+ years

Apply with RefersoAI Apply on careers page

Build products, services, and infrastructure for Brex’s financial software platform as an intern.

Responsibilities

Build solutions that drive direct business impact and shape long‑term technical vision
Learn and push the frontier of providing the best financial software experience
Be metric and data‑driven and think creatively to help Brex scale
Collaborate with product, design, and operations experts

Requirements

BA/BS in Computer Science or Computer Engineering or Software Engineering
Nice to have: product design collaboration
Nice to have: writing skills
Nice to have: proactive approach
Nice to have: corporate financial systems or concepts

Skills

See full job description

Staff Data Scientist, Credit Policy

Block, Inc. · Posted Nov 9, 2026

Open

California, United States
Full-time · Senior
$198K–$297K per year
8+ years

Apply with RefersoAI Apply on careers page

Lead credit policy governance and experimentation for Square Financial Services’ credit products.

Compensation

$198,000—$297,000 USD

Responsibilities

Apply a rigorous scientific mindset to underwriting new customer segments
Own credit policy governance and reporting
Propose and design experiments for credit products
Review experiment designs proposed by partner teams
Form policy guidelines and frameworks

Requirements

Bachelor's degree in a technical field
Master's degree in a technical field
PhD in a technical field

Skills

SQL Python Statistical analysis Experiment design Data visualization

Benefits

Remote work
Medical insurance
Flexible time off
Retirement savings plans
Modern family planning

See full job description

Measurement Science Manager

Instacart · Posted Nov 9, 2026

Open

Remote, Canada +3 more
Remote
Full-time · Mid
CA$118K–CA$125K per year
4+ years

Apply with RefersoAI Apply on careers page

Lead measurement science initiatives, design experiments, and partner with advertisers to deliver causal insights and strategic recommendations.

Locations (4)

Ontario, Canada
Alberta, Canada
British Columbia, Canada
Nova Scotia, Canada

Compensation

CAN $118,000—$124,500 CAD

Responsibilities

Design and deliver A/B tests, holdouts, and incrementality studies to demonstrate ad value.
Partner with advertisers to shape media measurement approaches and resolve complex challenges.
Develop custom code, dashboards, and self‑service tools for stakeholders.
Translate analytics insights into strategic recommendations that drive business outcomes.

Requirements

Bachelor's degree in a quantitative field such as Engineering, Mathematics/Statistics, Finance, Economics or Business
Nice to have: Lift measurement studies
Nice to have: Sales team leadership
Nice to have: Ad auction mechanics
Nice to have: Targeting algorithms

Skills

Statistical data analytics A/B testing Holdout designs Incrementality measurement Tableau Mode Excel SQL Python R

Benefits

Market‑competitive compensation
Equity grant
Annual refresh grants
Flex First remote work policy

See full job description

Senior Software Engineer, Backend (Trust & Safety)

Affirm · Posted Nov 9, 2026

Open

Remote, Canada
Remote
Full-time · Senior
CA$153K–CA$213K per year
4+ years

Apply with RefersoAI Apply on careers page

Lead backend engineering for Trust & Safety, owning quarterly goals, driving technical design, and ensuring system reliability.

Compensation

CAN base pay range per year: $153,000 - $213,000 CAD

Responsibilities

Own and deliver quarterly goals for the team
Lead engineers through ambiguity to solve open-ended problems
Collaborate with product, design, and analytics on product development lifecycle
Identify and solve project, process, technology or business issues
Support operations and availability of team artifacts, including on-call efforts

Skills

Python Kotlin AWS MySQL Kubernetes

Benefits

Health coverage at no cost
Spending stipends
Flexible time off
Employee stock purchase plan

See full job description

Senior Software Engineer, Backend (Trust & Safety)

Affirm · Posted Nov 9, 2026

Open

Remote, United States
Remote
Full-time · Senior
$173K–$255K per year
4+ years

Apply with RefersoAI Apply on careers page

Senior backend engineering role focused on Trust & Safety to protect consumers and merchants from fraud and abuse using real-time systems.

Compensation

USA Pacific base pay range (CA, WA, NY, NJ, CT): $195,000 - $255,000. USA Sapphire base pay range (all other U.S. states): $173,000 - $233,000

Responsibilities

Owning and delivering quarterly goals for the team
Leading engineers through ambiguity to solve open-ended problems
Collaborating with product management, design & analytics in the product development lifecycle
Proactively identifying and solving project, process, technology, or business issues
Supporting operations and availability of team artifacts through metrics monitoring

Requirements

Bachelor’s degree in a related field or equivalent practical experience

Skills

Python Kotlin AWS MySQL Kubernetes Distributed systems

Benefits

100% subsidized medical, dental and vision coverage
Monthly tech and wellness spending stipends
Flexible time off
Employee stock purchase plan (ESPP)

See full job description

Senior Software Engineer, Backend (Consumer)

Affirm · Posted Nov 9, 2026

Open

Remote, Canada +8 more
Remote
Full-time · Senior
CA$153K–CA$213K per year
4+ years

Apply with RefersoAI Apply on careers page

Consumer Engineering builds the Affirm experience millions of people use to pay over time, including the Affirm app, web checkout, and the account tools.

Locations (9)

Alberta, Canada
British Columbia, Canada
Manitoba, Canada
New Brunswick, Canada
Newfoundland and Labrador, Canada
Nova Scotia, Canada

Show all 9 locations

Ontario, Canada
Prince Edward Island, Canada
Saskatchewan, Canada

Compensation

CAN base pay range per year: $153,000 - $213,000 CAD

Responsibilities

Owning and delivering quarterly goals for the team
Leading engineers on team through ambiguity to solve open-ended problems
Collaborating with product management, design & analytics throughout development lifecycle
Participating in ideation, articulating technical constraints, and partnering on decisions that properly consider risks and trade-offs
Identifying project technology or business issues

Skills

Python Kotlin Backend systems Distributed systems AWS MySQL Kubernetes

Benefits

Health coverage at no cost (100% of premiums for employees and dependents)
Monthly stipends for tech setup, health and wellness spending
Flexible time off
Generous holiday calendars
Employee stock purchase plan (ESPP)

See full job description

Senior Software Engineer, Backend (Consumer)

Affirm · Posted Nov 9, 2026

Open

Remote, United States
Remote
Full-time · Senior
$173K–$255K per year
4+ years

Apply with RefersoAI Apply on careers page

Lead backend engineering for the consumer-facing payment experience, owning quarterly goals, driving technical excellence, and fostering a culture of quality and ownership.

Compensation

USA Pacific base pay range (CA, WA, NY, NJ, CT): $195,000 - $255,000 USA Sapphire base pay range (all other U.S. states): $173,000 - $233,000

Responsibilities

Own and deliver quarterly goals for the team
Lead engineers through ambiguity to solve open-ended problems
Collaborate with product, design, and analytics to articulate technical constraints and make decisions
Identify and solve project, process, technology or business issues
Support operations and availability of team artifacts, including metrics and on-call efforts

Requirements

Bachelor’s degree in a related field

Skills

Python Kotlin AWS MySQL Kubernetes

Benefits

Health coverage at no cost
Monthly tech spending stipends
Flexible time off and generous holiday calendars
Employee stock purchase plan (ESPP)

See full job description

AI Programmer Intern

Epic Games · Posted Nov 9, 2026

Open

Cary, North Carolina, United States
Internship · Intern
0+ years

Apply with RefersoAI Apply on careers page

Research Engineering Intern focused on machine learning and AI for Unreal Engine.

Responsibilities

Assist with prototyping machine learning and generative approaches for game content creation
Support experiments by preparing data, running tests, collecting results, and documenting observations
Assist with implementing and testing research concepts using Python and relevant machine learning tools
Read and discuss research papers with team members
Work with mentor and team to support ongoing research and development projects

Requirements

Bachelor's or Master's degree program in Computer Science, Machine Learning, Mathematics, Engineering, or related discipline
Nice to have: Real-time graphics
Nice to have: Computer vision
Nice to have: Machine learning
Nice to have: Animation

Skills

Python C++ (plus)PyTorch or TensorFlow Machine learning concepts Unreal Engine (plus)PyTorch TensorFlow

See full job description

AI Engineer I/II/III

EQT Corporation · Posted Nov 9, 2026

Open

Remote, United States
Remote
3+ years

Apply with RefersoAI Apply on careers page

The AI Engineer will build and maintain a fleet of AI agents working alongside people, using Microsoft Foundry, Salesforce, and Azure.

Compensation

Responsibilities

Build and maintain shared agent tools and capabilities.
Configure Foundry prompt agents: instructions, model selection, tool assignments, permissions, and guardrails, ready for others to test and tune.
Customize and extend tools when an agent needs something the shared set doesn't yet cover.
Partner with AI Specialists and domain experts as they test against real cases, and coach them on prompt design and evaluation.
Deploy agents and monitor the fleet through the Foundry control plane: evaluations, monitoring and alerts, audit trail, and cost.

Requirements

Bachelor's degree in a technical discipline (computer science, engineering, information systems, or similar), or an equivalent combination of education and experience.
Nice to have: Microsoft Foundry (Azure AI Foundry)
Nice to have: Model Context Protocol (MCP)
Nice to have: LangGraph
Nice to have: Semantic Kernel

Skills

Python git code review testing APIs LLM-based agents prompt design tool calling retrieval Azure SQL Salesforce Databricks Microsoft Foundry LangGraph Semantic Kernel

See full job description