SQL (Programming Language) jobs

QA Engineer - Discovery

IP Fabric · Posted Nov 10, 2026

Prague, Prague, Czech Republic +1 more
Hybrid
Full-time · Senior

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We are looking for a Senior QA Engineer to join our Discovery Platform team to engineer quality into complex backend systems and ensure reliability and safe releases.

Locations (2)

Prague, Prague, Czech Republic
EU

Compensation

25 days of holidays + 5 flexi-days. Pluxee Flexi Card (up to 16 000 CZK per year - valid only for Czech employees). Anniversary rewards.

Responsibilities

Closely collaborate with developers to deliver features & fixes in quality
Bring quality mindset to the whole development cycle from planning to release
Improve the way we work
Define and monitor quality metrics
Write automated tests and participate in manual testing

Requirements

Nice to have: AI-assisted development workflows
Nice to have: Playwright
Nice to have: Python
Nice to have: Networking
Nice to have: Network Engineering

Skills

JavaScript TypeScript Back-end test automation unit tests integration tests API testing mocking Linux Shell SQL Playwright CI/CD

Benefits

25 days of holidays
5 flexi-days
Pluxee Flexi Card
Anniversary rewards
Collaboration with diverse, international teams

See full job description

Senior Product Analyst

SumUp · Posted Jul 20, 2026

Open

Berlin, Berlin, Germany
On-site
Full-time · Senior

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The role owns the Engagement domain — covering merchant engagement, product activation, support responses, and navigation across the SuperApp and web dashboard — and is the primary analytics partner for the Engagement product team.

Responsibilities

Define event taxonomies and measurement plans
implement and QA tracking (GA4)
build and maintain scalable datasets in Snowflake — including funnels, customer behaviour models, and feature adoption metrics
Design and evaluate A/B tests
Create and maintain intuitive dashboards and reusable query templates in Tableau

Requirements

Nice to have: Tableau
Nice to have: Power BI
Nice to have: Snowflake
Nice to have: Postgres
Nice to have: Redshift

Skills

SQL Data visualization A/B testing Statistical validity English proficiency GA4 Snowflake Tableau Power BI Postgres Redshift

Benefits

Virtual Stock Option programme
Annual L&D budget of €2000
Corporate pension scheme
28 days of paid leave plus public holidays and special leave days
Urban Sports Club subsidy

See full job description

Junior Support Analyst

mthree Recruiting Portal · Posted Jul 16, 2025

Open

Hong Kong, Hong Kong
Full-time · Entry

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The Junior Support Analyst will maintain and optimize real-time market data systems, ensure high availability, and collaborate with users and developers to support global financial market data platforms.

Responsibilities

Maintain and optimize real-time market data systems
Ensure high availability and platform performance
Collaborate with users and developers on global migrations
Monitor systems and ensure platform stability
Identify automation and efficiency improvements

Requirements

Bachelor's degree in computer science or a related STEM subject (science, technology, engineering, maths)
Nice to have: Java
Nice to have: C++
Nice to have: .NET
Nice to have: MQ

Skills

Linux SQL Networking (TCP/IP, UDP, SNMP)Scripting (Perl, Python, or UNIX shell)Problem-solving Analytical skills English communication skills

Benefits

Interactive training before placement
Generous graduate salary
Pay rises every 12 months
Ongoing training and support

See full job description

Research Associate 1

Natera · Posted Nov 10, 2026

Open

Remote, United States +1 more
Remote
Entry
$23–$25 per hour
0–2 years

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Responsible for managing biological samples, ensuring integrity, overseeing quality control, and supporting research projects that rely on biological specimens.

Locations (2)

Austin, Texas, United States
United States

Compensation

$23—$25 USD

Responsibilities

Oversee collection, preparation, and processing of biological samples
Maintain proper documentation and labeling of samples
Ensure proper storage conditions for various types of biological samples
Implement inventory management procedures
Manage and update the sample database

Requirements

Bachelor’s degree in Biological Sciences, Biotechnology, Molecular Biology, or a related field
Nice to have: FreezerPro
Nice to have: LabArchives
Nice to have: LabWare
Nice to have: snowflake based database

Benefits

comprehensive medical, dental, vision, life and disability plans
free testing
fertility care benefits
pregnancy and baby bonding leave
401k benefits

See full job description

Treasury Associate, Cash Management & Working Capital

Nivoda · Posted Nov 10, 2026

Open

Mumbai, Maharashtra, India
Hybrid
Full-time · Mid
3–5 years

Apply with RefersoAI Apply on careers page

Responsible for cash flow planning, liquidity management, working capital optimization, and treasury operations in a multi-entity, multi-currency environment.

Responsibilities

Maintain and improve short- and medium-term cash flow forecasts
Analyze historical cash flows and operational drivers
Consolidate and validate inputs from AR/AP, FP&A, Operations, Tax and Payroll
Investigate discrepancies between systems and bank transactions
Monitor forecast versus actuals and refine assumptions

Requirements

Bachelor’s degree in Finance, Accounting, Economics, Commerce or related field
Nice to have: B2B marketplace
Nice to have: fintech
Nice to have: payments-heavy businesses
Nice to have: multi-region structures

Skills

cash management liquidity forecasting working capital financial statements Excel SQL SAP NetSuite banking portals ERP systems KYC bank account administration FX exposure interest income bank reconciliation Atlar ThoughtSpot

See full job description

NLP Engineer

Point72 · Posted May 31, 2025

Open

New York, New York, United States
Full-time

Apply with RefersoAI Apply on careers page

Seeking an NLP engineer for a NLP research team to develop modern NLP solutions including LLMs, agents, RAG, and open-source models fine-tuning and deployment.

Responsibilities

Exploring and combining rich internal and external textual datasets
Building GenAI solutions, leveraging both internal models and external APIs
Formulating research hypothesis to derive alpha
Post-training models for specific tasks
Benchmarking LLM approaches internal tasks

Requirements

Bachelor in computer science or another quantitative discipline
Master’s in computer science or another quantitative discipline
PhD in computer science or another quantitative discipline
Nice to have: Data science stack familiarity
Nice to have: Interest in financial markets

Skills

NLP LLMs Python SQL software engineering principles github testing

See full job description

Staff Product Manager, Accounts & Payments

Mozilla · Posted Nov 10, 2026

Open

Remote, Canada
Remote
Full-time · Staff
CA$116K–CA$171K per year
6+ years

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Lead key initiatives across authentication, feature access, account recovery, and cross‑platform experience, while guiding the evolution of Mozilla’s payments platform.

Compensation

Canada Tier 1 Locations $128,000—$171,000 CAD Canada Tier 2 Locations $116,000—$155,000 CAD

Responsibilities

Lead end‑to‑end delivery of key accounts initiatives, including passwordless authentication and improvements to the authentication and account recovery experience across platforms.
Manage the Mozilla Accounts and Subscription Platform product roadmap, setting clear priorities aligned to strategic goals and driving focused execution.
Guide improvements to Mozilla’s subscription platform across payments, entitlements, and metering, partnering with product teams to support their subscription offerings.
Seek out and leverage data and user insights and market research to drive impact through experimentation.
Partner closely with engineering, UX, and cross‑functional teams to maintain a focused, outcome‑driven backlog.

Skills

product management user‑facing products back‑end services technical acumen software architecture data‑driven approach SQL Looker Excel identity platforms payment platforms

Benefits

Generous performance‑based bonus plans
Rich medical, dental, and vision coverage
Generous retirement contributions with 100% immediate vesting
Quarterly all‑company wellness days
Country specific holidays plus a day off for your birthday

See full job description

Cloud Platform Engineer (DB Specialist)

PayPay · Posted Jun 28, 2023

Open

Japan
Hybrid
Full-time
5+ years
Visa sponsorship

Apply with RefersoAI Apply on careers page

Provide database operations and infrastructure support for PayPay’s mission‑critical systems in Japan.

Responsibilities

Database operations, including monitoring, configuration management, upgrade, scaling, backup, and data migration.
Iterate on database operations to improve quality and efficiency
Troubleshoot stability and performance problems
Contribute to documentation for communicating knowledge, experience and for effective decision‑making
Research and test new tools in database ecosystems, and adopt them in PayPay Group.

Requirements

Nice to have: Jenkins
Nice to have: Ansible
Nice to have: Docker
Nice to have: Kubernetes
Nice to have: Redis

Benefits

Social Insurance (health insurance, employee pension, employment insurance and compensation insurance)
401K
Translation/Interpretation support
VISA sponsor + Relocation support

See full job description

Quantitative Developer - Commodities (Python)

Qube Research & Technologies · Posted Oct 30, 2026

Open

London, London, United Kingdom
Full-time · Associate
2+ years

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The role focuses on developing Python applications, quantitative tools and data infrastructure that support trading decisions, research and risk management across Commodities, Agriculture, Metals and Energy.

Responsibilities

Design, develop and deploy quantitative tools supporting trading and research, including pricing, backtesting, risk analysis and PnL reporting
Build Python applications and data pipelines to explore, integrate and analyse alternative datasets, including weather and cargo data
Collaborate with Quantitative Researchers and Traders to translate trading ideas and business requirements into production applications and quantitative models
Architect, develop and maintain cloud applications in collaboration with infrastructure engineers, using AWS and related technologies
Develop and apply statistical and machine learning models to support research and trading across Agriculture, Metals and Energy

Requirements

Nice to have: Commodities trading
Nice to have: AI development tools
Nice to have: Plotly
Nice to have: Streamlit
Nice to have: Dash

Skills

Python Object-oriented programming NumPy Pandas Polars Matplotlib SQL Airflow AWS Git Unit testing Snowflake Plotly Streamlit Dash htmx Slurm Ray

Benefits

Work-life balance initiatives

See full job description

Software Development Engineer - 3 (Backend)

Quince · Posted Apr 16, 2026

Open

Bengaluru, Karnataka, India
5+ years

Apply with RefersoAI Apply on careers page

Lead the design and implementation of scalable, resilient backend systems and services, own architectural decisions, mentor engineers, and drive technical strategy for backend systems.

Responsibilities

Lead the design and implementation of scalable, resilient backend systems and services
Own architectural decisions and drive system design for complex, high-scale distributed systems
Identify and solve deeply complex technical challenges related to scalability, performance, and reliability
Define and drive short-term and long-term technical strategy for backend systems
Establish and enforce high standards for code quality, system design, and engineering best practices

Requirements

Nice to have: AWS
Nice to have: microservices
Nice to have: CI/CD
Nice to have: DevOps
Nice to have: Docker

Skills

Java Spring Spring Boot SQL NoSQL distributed systems system design debugging problem solving Docker Kubernetes

See full job description

QA Engineer - Discovery

IP Fabric · Posted Nov 10, 2026

Open

Prague, Prague, Czech Republic +1 more
Hybrid
Full-time · Senior

Apply with RefersoAI Apply on careers page

We are looking for a Senior QA Engineer to join our Discovery Platform team to engineer quality into complex backend systems and ensure reliability and safe releases.

Locations (2)

Prague, Prague, Czech Republic
EU

Compensation

25 days of holidays + 5 flexi-days. Pluxee Flexi Card (up to 16 000 CZK per year - valid only for Czech employees). Anniversary rewards.

Responsibilities

Closely collaborate with developers to deliver features & fixes in quality
Bring quality mindset to the whole development cycle from planning to release
Improve the way we work
Define and monitor quality metrics
Write automated tests and participate in manual testing

Requirements

Nice to have: AI-assisted development workflows
Nice to have: Playwright
Nice to have: Python
Nice to have: Networking
Nice to have: Network Engineering

Skills

JavaScript TypeScript Back-end test automation unit tests integration tests API testing mocking Linux Shell SQL Playwright CI/CD

Benefits

25 days of holidays
5 flexi-days
Pluxee Flexi Card
Anniversary rewards
Collaboration with diverse, international teams

See full job description

Senior Product Analyst

SumUp · Posted Jul 20, 2026

Open

Berlin, Berlin, Germany
On-site
Full-time · Senior

Apply with RefersoAI Apply on careers page

Responsibilities

Define event taxonomies and measurement plans
implement and QA tracking (GA4)
build and maintain scalable datasets in Snowflake — including funnels, customer behaviour models, and feature adoption metrics
Design and evaluate A/B tests
Create and maintain intuitive dashboards and reusable query templates in Tableau

Requirements

Nice to have: Tableau
Nice to have: Power BI
Nice to have: Snowflake
Nice to have: Postgres
Nice to have: Redshift

Skills

SQL Data visualization A/B testing Statistical validity English proficiency GA4 Snowflake Tableau Power BI Postgres Redshift

Benefits

Virtual Stock Option programme
Annual L&D budget of €2000
Corporate pension scheme
28 days of paid leave plus public holidays and special leave days
Urban Sports Club subsidy

See full job description

Junior Support Analyst

mthree Recruiting Portal · Posted Jul 16, 2025

Open

Hong Kong, Hong Kong
Full-time · Entry

Apply with RefersoAI Apply on careers page

Responsibilities

Maintain and optimize real-time market data systems
Ensure high availability and platform performance
Collaborate with users and developers on global migrations
Monitor systems and ensure platform stability
Identify automation and efficiency improvements

Requirements

Bachelor's degree in computer science or a related STEM subject (science, technology, engineering, maths)
Nice to have: Java
Nice to have: C++
Nice to have: .NET
Nice to have: MQ

Skills

Linux SQL Networking (TCP/IP, UDP, SNMP)Scripting (Perl, Python, or UNIX shell)Problem-solving Analytical skills English communication skills

Benefits

Interactive training before placement
Generous graduate salary
Pay rises every 12 months
Ongoing training and support

See full job description

Research Associate 1

Natera · Posted Nov 10, 2026

Open

Remote, United States +1 more
Remote
Entry
$23–$25 per hour
0–2 years

Apply with RefersoAI Apply on careers page

Responsible for managing biological samples, ensuring integrity, overseeing quality control, and supporting research projects that rely on biological specimens.

Locations (2)

Austin, Texas, United States
United States

Compensation

$23—$25 USD

Responsibilities

Oversee collection, preparation, and processing of biological samples
Maintain proper documentation and labeling of samples
Ensure proper storage conditions for various types of biological samples
Implement inventory management procedures
Manage and update the sample database

Requirements

Bachelor’s degree in Biological Sciences, Biotechnology, Molecular Biology, or a related field
Nice to have: FreezerPro
Nice to have: LabArchives
Nice to have: LabWare
Nice to have: snowflake based database

Benefits

comprehensive medical, dental, vision, life and disability plans
free testing
fertility care benefits
pregnancy and baby bonding leave
401k benefits

See full job description

Treasury Associate, Cash Management & Working Capital

Nivoda · Posted Nov 10, 2026

Open

Mumbai, Maharashtra, India
Hybrid
Full-time · Mid
3–5 years

Apply with RefersoAI Apply on careers page

Responsible for cash flow planning, liquidity management, working capital optimization, and treasury operations in a multi-entity, multi-currency environment.

Responsibilities

Maintain and improve short- and medium-term cash flow forecasts
Analyze historical cash flows and operational drivers
Consolidate and validate inputs from AR/AP, FP&A, Operations, Tax and Payroll
Investigate discrepancies between systems and bank transactions
Monitor forecast versus actuals and refine assumptions

Requirements

Bachelor’s degree in Finance, Accounting, Economics, Commerce or related field
Nice to have: B2B marketplace
Nice to have: fintech
Nice to have: payments-heavy businesses
Nice to have: multi-region structures

Skills

See full job description

NLP Engineer

Point72 · Posted May 31, 2025

Open

New York, New York, United States
Full-time

Apply with RefersoAI Apply on careers page

Seeking an NLP engineer for a NLP research team to develop modern NLP solutions including LLMs, agents, RAG, and open-source models fine-tuning and deployment.

Responsibilities

Exploring and combining rich internal and external textual datasets
Building GenAI solutions, leveraging both internal models and external APIs
Formulating research hypothesis to derive alpha
Post-training models for specific tasks
Benchmarking LLM approaches internal tasks

Requirements

Bachelor in computer science or another quantitative discipline
Master’s in computer science or another quantitative discipline
PhD in computer science or another quantitative discipline
Nice to have: Data science stack familiarity
Nice to have: Interest in financial markets

Skills

NLP LLMs Python SQL software engineering principles github testing

See full job description

Staff Product Manager, Accounts & Payments

Mozilla · Posted Nov 10, 2026

Open

Remote, Canada
Remote
Full-time · Staff
CA$116K–CA$171K per year
6+ years

Apply with RefersoAI Apply on careers page

Lead key initiatives across authentication, feature access, account recovery, and cross‑platform experience, while guiding the evolution of Mozilla’s payments platform.

Compensation

Canada Tier 1 Locations $128,000—$171,000 CAD Canada Tier 2 Locations $116,000—$155,000 CAD

Responsibilities

Lead end‑to‑end delivery of key accounts initiatives, including passwordless authentication and improvements to the authentication and account recovery experience across platforms.
Manage the Mozilla Accounts and Subscription Platform product roadmap, setting clear priorities aligned to strategic goals and driving focused execution.
Guide improvements to Mozilla’s subscription platform across payments, entitlements, and metering, partnering with product teams to support their subscription offerings.
Seek out and leverage data and user insights and market research to drive impact through experimentation.
Partner closely with engineering, UX, and cross‑functional teams to maintain a focused, outcome‑driven backlog.

Skills

product management user‑facing products back‑end services technical acumen software architecture data‑driven approach SQL Looker Excel identity platforms payment platforms

Benefits

Generous performance‑based bonus plans
Rich medical, dental, and vision coverage
Generous retirement contributions with 100% immediate vesting
Quarterly all‑company wellness days
Country specific holidays plus a day off for your birthday

See full job description

Cloud Platform Engineer (DB Specialist)

PayPay · Posted Jun 28, 2023

Open

Japan
Hybrid
Full-time
5+ years
Visa sponsorship

Apply with RefersoAI Apply on careers page

Provide database operations and infrastructure support for PayPay’s mission‑critical systems in Japan.

Responsibilities

Database operations, including monitoring, configuration management, upgrade, scaling, backup, and data migration.
Iterate on database operations to improve quality and efficiency
Troubleshoot stability and performance problems
Contribute to documentation for communicating knowledge, experience and for effective decision‑making
Research and test new tools in database ecosystems, and adopt them in PayPay Group.

Requirements

Nice to have: Jenkins
Nice to have: Ansible
Nice to have: Docker
Nice to have: Kubernetes
Nice to have: Redis

Benefits

Social Insurance (health insurance, employee pension, employment insurance and compensation insurance)
401K
Translation/Interpretation support
VISA sponsor + Relocation support

See full job description

Quantitative Developer - Commodities (Python)

Qube Research & Technologies · Posted Oct 30, 2026

Open

London, London, United Kingdom
Full-time · Associate
2+ years

Apply with RefersoAI Apply on careers page

Responsibilities

Design, develop and deploy quantitative tools supporting trading and research, including pricing, backtesting, risk analysis and PnL reporting
Build Python applications and data pipelines to explore, integrate and analyse alternative datasets, including weather and cargo data
Collaborate with Quantitative Researchers and Traders to translate trading ideas and business requirements into production applications and quantitative models
Architect, develop and maintain cloud applications in collaboration with infrastructure engineers, using AWS and related technologies
Develop and apply statistical and machine learning models to support research and trading across Agriculture, Metals and Energy

Requirements

Nice to have: Commodities trading
Nice to have: AI development tools
Nice to have: Plotly
Nice to have: Streamlit
Nice to have: Dash

Skills

Python Object-oriented programming NumPy Pandas Polars Matplotlib SQL Airflow AWS Git Unit testing Snowflake Plotly Streamlit Dash htmx Slurm Ray

Benefits

Work-life balance initiatives

See full job description

Software Development Engineer - 3 (Backend)

Quince · Posted Apr 16, 2026

Open

Bengaluru, Karnataka, India
5+ years

Apply with RefersoAI Apply on careers page

Lead the design and implementation of scalable, resilient backend systems and services, own architectural decisions, mentor engineers, and drive technical strategy for backend systems.

Responsibilities

Lead the design and implementation of scalable, resilient backend systems and services
Own architectural decisions and drive system design for complex, high-scale distributed systems
Identify and solve deeply complex technical challenges related to scalability, performance, and reliability
Define and drive short-term and long-term technical strategy for backend systems
Establish and enforce high standards for code quality, system design, and engineering best practices

Requirements

Nice to have: AWS
Nice to have: microservices
Nice to have: CI/CD
Nice to have: DevOps
Nice to have: Docker

Skills

Java Spring Spring Boot SQL NoSQL distributed systems system design debugging problem solving Docker Kubernetes

See full job description