Prepare for and practice interview questions from Mygwork.

Mygwork Interview Questions

Mygwork Interview Guides

Let’s say that your company is running a standard control and variant AB test on a feature to increase conversion rates on the landing page. The PM checks the results and finds a .04 p-value.

How would you assess the validity of the result?

Experiment Validity

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

What is a key disadvantage of the F-test when compared to multiple t-tests?

What is a key disadvantage of the F-test when compared to multiple t-tests?

Hundreds of Hypotheses

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

Let’s say we have a table with an <code>id</code> and <code>name</code> fields. The table holds over 100 million rows and we want to sample a random row in the table without throttling the database.

Write a query to randomly sample a row from this table.

Input:

<code>big_table</code> table

<table>
<thead>
<tr>
<th>Columns</th>
<th>Type</th>
</tr>
</thead>

<tbody>
<tr>
<td><code>id</code></td>
<td>INTEGER</td>
</tr>

<tr>
<td><code>name</code></td>
<td>VARCHAR</td>
</tr>
</tbody>
</table>

Write a query to randomly sample a row from a big table.

Random SQL Sample

Mygwork Salaries by Position

This job is with Bloomberg, an inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly.

Bloomberg’s Engineering AI department has 300+ AI practitioners building highly sought after products and features that often require novel innovations. We are investing in AI to build better search, discovery, and workflow solutions using technologies such as transformers, gradient boosted decision trees, large language models, and dense vector databases. We are expanding our group and seeking highly skilled individuals who will be responsible for contributing to the team (or teams) of Machine Learning (ML) and Software Engineers that are bringing innovative solutions to AI-driven customer-facing products.

At Bloomberg, we believe in fostering a transparent and efficient financial marketplace. Our business is built on technology that makes news, research, financial data, and analytics on over 35 million financial instruments searchable, discoverable, and actionable across the global capital markets.

Bloomberg has been building Artificial Intelligence applications that offer solutions to these problems with high accuracy and low latency since 2009. We build AI systems to help process and organize the ever-increasing volume of structured and unstructured information needed to make informed decisions. Our use of AI uncovers signals, helps us produce analytics about financial instruments in all asset classes, and delivers clarity when our clients need it most.

We are looking for Senior LLM Research Engineers with a strong expertise and passion for Large Language Modeling research and applications to join our team.

The advent of large language models (LLMs) presents new opportunities for expanding our NLP capabilities with new products. This would allow our clients to ask complex questions in natural language and receive insights extracted across our vast number of Bloomberg APIs or from potentially millions of structured and unstructured information sources.

Broad areas of applications and interest include: pretraining and fine-tuning methods for LLMs, efficient methods for training, multimodal models, learning from feedback and human preferences, retrieval-augmented generation, summarization, semantic parsing and tool use, domain adaptation of LLMs to financial domains, dialogue interfaces, evaluation of LLMs, model safety and responsible AI.

What's in it for you: Collaborate with colleagues on building and applying LLMs for production systems and applications
Write, test, and maintain production quality code
Train, tune, evaluate and continuously improve LLMs using large amounts of high-quality data to develop state-of-the-art financial NLP models
Demonstrate technical leadership by owning cross-team projects
Stay current with the latest research in AI, NLP and LLMs and incorporate new findings into our models and methodologies
Represent Bloomberg at scientific and industry conference and in open-source communities
Publish product and research findings in documentation, whitepapers or publications to leading academic venues
You'll need to have: Practical experience with Natural Language Processing problems, and a familiarity with Machine Learning, Deep Learning and Statistical Modeling techniques
Ph.D. in ML, NLP or a relevant field or MSc in CS, ML, Math, Statistics, Engineering, or related fields and 2+ years of relevant work experience
Experience with Large Language Model training and fine-tuning frameworks such as PyTorch, Huggingface or Deepspeed
Proficiency in software engineering
An understanding of Computer Science fundamentals such as data structures and algorithms and a data oriented approach to problem-solving
Excellent communication skills and the ability to collaborate with engineering peers as well as non-engineering stakeholders.
A track record of authoring publications in top conferences and journals is a strong plus
We give back to the technology community and you can read more about our outreach at: http://www.techatbloomberg.com/a i

#LI-DNI

This job is with Bloomberg, an inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly.

Bloomberg, the global business and financial information and news leader, gives influential decision makers a critical edge by connecting them to a dynamic network of information, people and ideas. The company's strength - delivering data, news and analytics through innovative technology, quickly and accurately - is at the core of the Bloomberg Professional service, which provides real time financial information to more than 310,000 subscribers globally. Bloomberg's enterprise solutions build on the company's core strength, leveraging technology to allow customers to access, integrate, distribute and manage data and information across organizations more efficiently and effectively. Through Bloomberg Law, Bloomberg Government, Bloomberg New Energy Finance and Bloomberg BNA, the company provides data, news and analytics to decision makers in industries beyond finance. And Bloomberg News, delivered through the Bloomberg Professional service, television, radio, mobile, the Internet and two magazines, Bloomberg Businessweek and Bloomberg Markets, covers the world with more than 2,300 news and multimedia professionals at 146 bureaus in 72 countries. Headquartered in New York, Bloomberg employs more than 15,000 people in 192 locations around the world.

Electronic Trade Order Management System (ETOMS) is a global Fixed Income electronic trading system for market making. For sell-side fixed income firms, Bloomberg Trade Order Management Solutions (TOMS) delivers global, multi-asset solutions for front-end inventory, trading, compliance and middle & back office operations - ETOMS is fully integrated with Bloomberg terminal, data, analytics, and products to offer clients a competitive edge. Fixed Income markets have increasingly become electronic and require advanced electronic trading solutions to help traders manage the speed and complexity to be competitive.

What’s the Role?
We are looking for a D2C Product Manager to manage ETOMS dealer-to-client market making products. ETOMS Dealer-to-Client spans the full range of tools traders need such as market connectivity, price engine, quoting engine, model engine, trade blotter, RFQ ticket, auto-quoting and Straight-Through Processing (STP).

Responsibilities:

Presenting the vision, value proposition, roadmap and development progress to sales and clients
Working collaboratively with other Product Managers to integrate ETOMS services across all relevant workflows
Documenting clear functional specifications (including SLAs) for each phase of product development
Ensuring projects are delivered on time, to specification, and that all development milestones are met
You’ll Need to Have: 10+ years experience in product management or related field
Expert knowledge of Sellside EMS products and systems
Demonstrated acumen in Fixed Income electronic trading automation
Experience managing complex projects and teams
Hands-on experience with Fixed Income traders
Asset class lifecycle experience in at least one of these asset classes: Rates, Credit
Knowledge of trading business processes including Electronic Trading, Pricing, Risk, Trade Capture, Trade Lifecycle
Experience with Fixed Income electronic trading systems and order management systems
Knowledge of Software development process (Agile methodology preferred)
Project management business acumen (status, risks, issues, dependencies)
Bachelors Degree in associated focus (Product Management, Finance, STEM, etc)

We’d Love to See: A Highly motivated consensus builder who collaborates well in a team
Detail-oriented individual with solid analytic skills
Excellent presentation and communication skills including written, graphic and verbal
Ability to engage senior technology staff both internally & externally
#LI-DNI

This job is with Fiserv, an inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly.

Calling all innovators - find your future at Fiserv.
We're Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants, and consumers to one another millions of times a day - quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we're involved. If you want to make an impact on a global scale, come make a difference at Fiserv.
Job Title
DevOps Software Engineer Software Development Cloud Engineer (DevOps) - Pittsburgh, PA

**Our Team:**

The team builds and maintains multiple software applications that serve a wide array of customers, mainly facilitating payment processing. In this role, you will both aid in ensuring our customers have a secure and scalable experience when interacting with our technology and enable our engineers to deploy code autonomously. You will interact with a wide array of AWS services and supporting infrastructure and CI/CD tooling, but your main focus will be leveraging AWS Lambda, AWS API Gateway, AWS EKS, ArgoCD, and GitHub actions. You will also support engineers developing in a number of programming technologies, including but not limited to C# .NET, Java, Kotlin, and Angular.js, and build and maintain tooling in support of test automation and production monitoring.

**Your Role:**

As a Software (DevOps) Engineer within the Pineapple Payments business unit at Fiserv, you will develop and execute cloud infrastructure, DevOps, and Cybersecurity strategies and roadmaps in support of multiple product lines. You will partner hand in hand with Directors of application development ad Infrastructure to continuously deliver valuable products to customers that are scalable, reliable, and secure.

**Minimum Qualifications** :

+8+ years of experience with deployments, Infrastructure and automation technologies.
+ Experience deploying Web applications at scale with Kubernetes (EKS)
+ Ability to design and implement automation and redundancy architectures, for example, CI/CD pipelines, cloud computing architecture patterns, real-time monitoring solutions, etc.
+ Build monitoring/alerting around DevOps stack sing Grafana/Telegraf.
+ Manage Infrastructure and Configuration using Terraform or any other modern tooling.
+ Comfortable with the build tools, Linux, Database, and Python
+ Command over cybersecurity best practices, including modern Web application security implementations, defense postures, policy and procedure creation, and compliance with standards and regulations, especially PCI-DSS.
#LI-TC1
This role is not eligible to be performed in Colorado, California, District of Columbia, Hawaii, Maryland, New York, Nevada, Rhode Island or Washington.
Please note that salary ranges provided for this role on external job boards are salary estimates made by outside parties and may not be accurate.
Thank you for considering employment with Fiserv. Please:
Apply using your legal name
Complete the step-by-step profile and attach your resume (either is acceptable, both are preferable).
What you should know about us:
Fiserv is a global leader in payments and financial technology with more than 40,000 associates proudly serving clients in more than 100 countries. As one of Fortune® magazine's "World's Most Admired Companies™" 9 of the last 10 years, one of Fast Company's Most Innovative Companies, and a top scorer on Bloomberg's Gender-Equality Index, we are committed to innovation and excellence.
Our commitment to Diversity and Inclusion:
Fiserv is an Equal Opportunity Employer, and we welcome and encourage diversity in our workforce that reflects our world. All qualified applicants will receive consideration for employment without regard to race, color, religion, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other category protected by law.
We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.
Warning about fake job posts:
Please be aware of fraudulent job postings that are not affiliated with Fiserv. Fraudulent job postings may be used by cyber criminals to target your personally identifiable information and/or to steal money or financial information.
Any communications from a Fiserv representative will come from a legitimate business email address. We will not hire through text message, social media, or email alone, and any interviews will be conducted in person or through a secure video call. We won't ask you for sensitive information nor will we ask you to pay anything during the hiring process. We also won't send you a check to cash on Fiserv's behalf.
If you see suspicious activity or believe that you have been the victim of a job posting scam, you should report it to your local FBI field office or to the FBI's Internet Crime Complaint Center.
#LI-DNI

This job is with Bloomberg, an inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly.

Bloomberg’s Engineering AI department has 300+ AI practitioners building highly sought after products and features that often require novel innovations. We are investing in AI to build better search, discovery, and workflow solutions using technologies such as transformers, gradient boosted decision trees, large language models, and dense vector databases. We are expanding our group and seeking highly skilled individuals who will be responsible for contributing to the team (or teams) of Machine Learning (ML) and Software Engineers that are bringing innovative solutions to AI-driven customer-facing products.

At Bloomberg, we believe in fostering a transparent and efficient financial marketplace. Our business is built on technology that makes news, research, financial data, and analytics on over 35 million financial instruments searchable, discoverable, and actionable across the global capital markets.

Bloomberg has been building Artificial Intelligence applications that offer solutions to these problems with high accuracy and low latency since 2009. We build AI systems to help process and organize the ever-increasing volume of structured and unstructured information needed to make informed decisions. Our use of AI uncovers signals, helps us produce analytics about financial instruments in all asset classes, and delivers clarity when our clients need it most.

We are looking for Senior NLP Engineers with a strong expertise and passion for Natural Language Processing research and applications to join our team.

Natural Language Processing (NLP) methods are used to process collections of unstructured and semi-structured texts in order to extract semantic meaning, enhance the quality of the data and derive actionable insights and analytics.
Broad areas of applications and interest include: information extraction, entity recognition and disambiguation, topic classification, sentiment analysis, text analytics, summarization, event detection, conversation mining, dialogue systems, semantic parsing, question answering or sentence representations.

What's in it for you: Collaborate with colleagues on production systems and write, test, and maintain production quality code
Design, train, experiment, and evaluate NLP models, algorithms and solutions
Demonstrate technical leadership by owning cross-team projects
Stay current with the latest research in NLP and incorporate new findings into our models and methodologies
Represent Bloomberg at scientific and industry conference and in open-source communities
Publish product and research findings in documentation, whitepapers or publications to leading academic venues
You'll need to have: Practical experience with Natural Language Processing problems, and a familiarity with Machine Learning, Deep Learning and Statistical Modeling techniques
Ph.D. in ML, NLP or a relevant field or MSc in CS, ML, Math, Statistics, Engineering, or related fields. and 2+ years of relevant work experience
Experience with deep learning frameworks such as PyTorch
Proficiency in software engineering
An understanding of Computer Science fundamentals such as data structures and algorithms and a data oriented approach to problem-solving
Excellent communication skills and the ability to collaborate with engineering peers as well as non-engineering stakeholders.
A track record of authoring publications in top conferences and journals is a strong plus

This job is with Bloomberg, an inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly.

Bloomberg’s Engineering AI department has 300+ AI practitioners building highly sought after products and features that often require novel innovations. We are investing in AI to build better search, discovery, and workflow solutions using technologies such as transformers, gradient boosted decision trees, large language models, and dense vector databases. We are expanding our group and seeking highly skilled individuals who will be responsible for contributing to the team (or teams) of Machine Learning (ML) and Software Engineers that are bringing innovative solutions to AI-driven customer-facing products.

At Bloomberg, we believe in fostering a transparent and efficient financial marketplace. Our business is built on technology that makes news, research, financial data, and analytics on over 35 million financial instruments searchable, discoverable, and actionable across the global capital markets.

Bloomberg has been building Artificial Intelligence applications that offer solutions to these problems with high accuracy and low latency since 2009. We build AI systems to help process and organize the ever-increasing volume of structured and unstructured information needed to make informed decisions. Our use of AI uncovers signals, helps us produce analytics about financial instruments in all asset classes, and delivers clarity when our clients need it most.

As a Senior AI Safety Specialist, you will develop risk detection and mitigation systems using a wide range of technologies including BloombergGPT and other LLMs. You will have access to vast amounts of high quality data for training and evaluation, and the support of dedicated data, risk, and policy experts with decades of experience. You will be expected to lead the way in characterizing, assessing, and mitigating novel GenAI risks, especially in the financial services domain, and to evangelize best practices and technologies throughout the company.

Join the AI Group as a Senior AI Safety Engineer and you have the opportunity to:

Collaborate with teams across the company to ensure best practices around GenAI risks.
Identify novel GenAI risks and develop new models and mitigation strategies to address them.
Stay current with the latest research in AI Safety and Alignment and incorporate new findings into our models and methodologies
Evangelize AI Safety best practices to application teams across Bloomberg, and help them to develop solutions.
You'll need to have: A Master’s or PhD in Computer Science, Engineering, Mathematics, similar field of study or equivalent work experience.
Relevant work experience in AI Safety, AI Alignment, or AI Cybersecurity (5+ years after Masters or 2+ years after Ph.D.)
An understanding of Computer Science fundamentals such as data structures and algorithms.
We give back to the technology community and you can read more about our outreach at: http://www.techatbloomberg.com/a i

Mygwork Interview Questions

Mygwork Interview Guides

Mygwork Interview Questions

Mygwork Salaries by Position

Mygwork Opening Jobs