Big Data Engineer with Spark/Scala (f/m/x)

(full time employment contract - umowa o pracę na pełen etat)
What can you expect?

• Flexible working hours
• Induction Day - introduction to Mercer's organizational culture
• Senior colleague support during your first weeks of work
• Casual dress code and integration events
• Multilingual community with inclusive atmosphere
• Comfortable office in Warsaw city center (Al. Jerozolimskie 98)

What is in it for you?

• You will have a chance to gain experience in a truly international company
• You will attend trainings with dedicated coach which will prepare you to your daily task
• You will become familiar with Kanban boards and other LEAN methods

We will count on you to:

• Assist with the development, testing, and implementation of data audits for the cleaning and processing of executive and long-term incentive survey data
• Assist with peer review of executive survey data and long-term incentive valuations
• Conduct research on a regular basis of organizations and their associated structure that will be used in the maintenance of tools for consistent organization data cleaning across surveys
• Conduct research on executive compensation within specific organizations on an as needed basis
• Handle client and consultant interactions regarding executive and long-term incentive data upon request
• Assist with the production of products that pertain to executive and long-term incentive data
• Provide analytical support for consulting projects with regard to ExecRem/LTI data

What you need to have:

• Degree in finance, mathematics, statistics, business is preferred
• Strong analytical skills
• Fluent written and spoken English
• Time management and project management skills

What makes you stand out:

• Basic knowledge of financial mathematics and option pricing models (i.e. Black - Scholes)
• Basic knowledge of executive compensation and/or long-term incentive data
• Database management software skills

Why join our team:

• We help you be your best through professional development opportunities, interesting work and supportive leaders
• We foster a vibrant and inclusive culture where you can work with talented colleagues to create new solutions and have impact for colleagues, clients and communities
• Our scale enables us to provide a range of career opportunities, as well as benefits and rewards to enhance your well-being

If you are interested, please send your CV in English.
Marsh (NYSE: MRSH) is a global leader in risk, reinsurance and capital, people and investments, and management consulting, advising clients in 130 countries. With annual revenue of over $27 billion and more than 95,000 colleagues, Marsh helps build the confidence to thrive through the power of perspective. For more information, visit marsh.com, or follow us on LinkedIn and X.

Marsh is committed to creating a diverse, inclusive and flexible work environment. We aim to attract and retain the best people and embrace diversity of age, background, disability, ethnic origin, family duties, gender orientation or expression, marital status, nationality, parental status, personal or social status, political affiliation, race, religion and beliefs, sex/gender, sexual orientation or expression, skin color, or any other characteristic protected by applicable law.

Marsh is committed to hybrid work, which includes the flexibility of working remotely and the collaboration, connections and professional development benefits of working together in the office. All Marsh colleagues are expected to be in their local office or working onsite with clients at least three days per week. Office-based teams will identify at least one “anchor day” per week on which their full team will be together in person.

R_357200

Location: Katowice - 2 days in office / 3 days remote

Let us introduce you the job offer by EY GDS Poland – a member of the global integrated service delivery center network by EY.

As a Senior in Technology Risk, you will be part of a high-performing, international team delivering IT audit and technology risk services to leading global clients.

The opportunity
CSS roles are created to provide tailored suite of services to consulting teams across competencies and regions within EY. Responsibilities include collaboration and service provision to Consulting leaders to manage their portfolio and practice operations more efficiently and effectively. The Business Insights Analyst works closely with business stakeholders to understand requirements, identify relevant information, and transform data into executive-ready insights and business stories. Responsibilities include supporting leadership decision-making through analysis, reporting, presentation development, and AI-enabled insight generation. The role requires collaboration with Consulting, Analytics, and AI teams to deliver high-quality business intelligence, reporting governance, and actionable recommendations. Strong analytical thinking, communication, storytelling, attention to detail, and stakeholder management skills are essential for success in this role.

Your Key Responsibilities

• Understand business needs and stakeholder objectives.
• Translate business questions into analytical use cases and solution concepts.
• Identify and gather relevant data from multiple internal sources.
• Collaborate with Analytics and AI teams to develop insight-driven solutions.
• Create business briefings, executive summaries, and client insights.
• Use GenAI-powered tools and dashboards to generate and maintain presentations and reports.
• Transform complex data into clear, actionable business narratives.
• Ensure quality, consistency, and governance of reporting outputs.

Skills And Attributes For Success

• Strong business and analytical thinking.
• Ability to connect information from multiple sources and identify meaningful insights.
• Excellent communication and storytelling skills.
• Ability to translate complex information into clear business messages.
• Proactive, ownership-driven mindset.
• Strong attention to detail.

To qualify for the role, you mut have

• 2+ years of experience in business analysis, consulting, analytics, or a related field.
• Experience gathering and interpreting business requirements.
• Strong PowerPoint and presentation development skills.
• Advanced skills in Excel and PowerBI.
• Experience preparing executive-level materials.
• Excellent English communication skills (C1/C2).

Ideally, you’ll also have

• Experience with AI, GenAI, Copilot, or analytics solutions.
• Knowledge of Azure, Fabric, or similar platforms.
• Experience supporting client-facing teams, sales, or account management.

What We Offer
EY Global Delivery Services (GDS) is a dynamic and truly global delivery network. We work across nine locations – Argentina, Hungary, India, the Philippines, Poland, Sri Lanka, Mexico, Spain and the United Kingdom – and with teams from all EY service lines, geographies and sectors, playing a vital role in the delivery of the EY growth strategy. From accountants to coders to advisory consultants, we offer a wide variety of fulfilling career opportunities that span all business disciplines. In GDS, you will collaborate with EY teams on exciting projects and work with well-known brands from across the globe. We’ll introduce you to an ever-expanding ecosystem of people, learning, skills and insights that will stay with you throughout your career.

• Continuous learning: You’ll develop the mindset and skills to navigate whatever comes next.
• Success as defined by you: We’ll provide the tools and flexibility, so you can make a meaningful impact, your way.
• Transformative leadership: We’ll give you the insights, coaching and confidence to be the leader the world needs.
• Diverse and inclusive culture: You’ll be embraced for who you are and empowered to use your voice to help others find theirs.

About EY
EY | Building a better working world
EY exists to build a better working world, helping to create long-term value for clients, people and society and build trust in the capital markets.

Enabled by data and technology, diverse EY teams in over 150 countries provide trust through assurance and help clients grow, transform and operate.

Working across assurance, consulting, law, strategy, tax and transactions, EY teams ask better questions to find new answers for the complex issues facing our world today.

If you can demonstrate that you meet the criteria above, please contact us as soon as possible.
The Exceptional EY Experience. It’s Yours To Build.
In compliance with the requirements of the Whistleblower Protection Act, our company has established the
Procedure for reporting breaches of law and undertaking appropriate follow-up actions
. Any misconduct should be reported through the EY Ethics Hotline.

Do you want to create Data & Analytics solutions that truly support business decisions?

Join our Data & Analytics Competence Center and co-create modern analytical solutions based on Microsoft Power BI.

As a Lead Data Analyst (Power BI), you will bridge the business and technology worlds – engage in client conversations, translate business needs into analytical solutions, and support organizations in building a Data-Driven culture.

You will develop reporting standards and Data Governance, support the Power BI analyst team, and collaborate with DWH architects and data engineers in designing modern data platforms.

If you enjoy connecting business with technology, building client relationships, and having a real impact on the development of Data & Analytics solutions – this role is for you.

Your tasks

• Collaborate with business stakeholders
• Conduct workshops, analyze requirements, and translate business goals into analytical solutions and Power BI dashboards
• Define reporting standards and best practices in Power BI and Data Governance
• Work with data developers (ETL), data architects, and DevOps/FinOps in designing and implementing solutions based on Microsoft Fabric and Power BI
• Act as a team leader – mentoring, developing skills, and providing substantive support to analysts
• Oversee the quality, consistency, and usability of delivered analytical solutions
• Monitor market trends in analytics
• Co-create and develop the Data & Analytics Center's offerings
• Represent the organization at industry conferences and actively participate in market events

Requirements

• At least 7 years of experience in creating and developing Power BI analytics and working with data
• Previous experience as a Tech Lead / Lead Developer / Senior Consultant
• Knowledge of Data Governance principles, semantic modeling, and reporting best practices
• Practical knowledge of DWH architecture, Data Lakehouse, cloud solutions, and Microsoft Fabric platform, supported by active participation in implementations or production projects
• Advanced skills in SQL, Python, DAX
• Commercial experience with Microsoft Fabric gained through implementation or development projects (experience in architecture design and recommending platform components is a plus)
• Experience in project work with clients (requirements gathering, consulting, presentations)
• Ability to make technological decisions and take responsibility for them
• Strong communication and consulting skills
• Experience in presales processes (concept preparation, offer support, estimations)
• Ability to identify market trends in data analytics and apply them practically in building offerings and solutions for clients
• Fluent communication in Polish and English

Nice to have

• Active participation in the industry community (attending conferences, meetups, monitoring the market)
• Use of AI in analytics automation
• Knowledge of MS Fabric IQ and/or Copilot Studio

Job no. JOB-A4TZ3

Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.

Benefits For You

• Great Place to Work
• Solid financial situation
• Contracts with the biggest brands
• Centre of internal trainings
• Many experts you can learn from
• Open and accessible management team
• Profit sharing
• Passion Sponsorship program
• Regular integration events and trips
• Comfortable and well-equipped offices
• MySii app
• Medical care

Senior Risk Engineering Analyst
Aon is in the business of better decisions
At Aon, we shape decisions for the better to protect and enrich the lives of people around the world.

As an organization, we are united through trust as one inclusive team and we are passionate about helping our colleagues and clients succeed.

What The Day Will Look Like

• System Ownership & Technical Administration: Oversee d‑Risk system maintenance (patches, upgrades, version control, stability) and conduct UAT for new releases. Configure workflows, forms, notifications, and automation. Monitor performance, uptime, data integrity, drive optimization and digitalization, and ensure SLA compliance with the vendor.
• User Management & Vendor Collaboration : Act as the main liaison with the US‑based d‑Risk vendor. Manage the full user lifecycle (accounts, roles, permissions, deactivation) and support onboarding, training, and adoption for ~100 users across 12 EMEA countries. Provide daily technical support, gather user feedback, and lead change management for new releases and features.
• Reporting, Dashboards & Analytics: Produce and customize risk reports, dashboards, data extracts, and management insights. Deliver client‑ready reporting supporting Risk Control Engineering and ensure consistency and data accuracy across EMEA.
• Documentation System & Process Governance: Ensure effective use of the d‑Risk documentation system across EMEA. Support risk surveys, templates, documentation standards, follow‑up of risk recommendations, and maintain high data quality in cooperation with the ABS client data team.
• Asset Valuation & Project Tracking: Support Asset Valuation by coordinating third‑party proposals, tracking project delivery, logging completed projects, and ensuring compliance with quality and documentation requirements.
• Financial & Supplier Coordination: Manage EMEA invoicing and internal off‑charging. Coordinate with supplier contract holders to ensure proper vendor and contract management.

Skills And Experience That Will Lead To Success

• Strong affinity for digitalization, applications, and data‑driven workflows.
• Experience in system administration, workflow configuration, and change management preferred.
• High attention to detail and a commitment to accurate, high‑quality delivery.
• Excellent communication skills; outgoing and capable of building a strong, cross‑regional network across Europe.
• Ability to conduct training sessions for diverse user groups.
• Strong client‑service mindset, proactive, and solution‑oriented.
• Fluent in English (spoken and written).

How We Support Our Colleagues
In addition to our comprehensive benefits package, we encourage an inclusive workforce. Plus, our agile environment allows you to manage your wellbeing and work/life balance, ensuring you can be your best self at Aon. Furthermore, all colleagues enjoy two “Global Wellbeing Days” each year, encouraging you to take time to focus on yourself. We offer a variety of working style solutions for our colleagues as well.

Our continuous learning culture inspires and equips you to learn, share and grow, helping you achieve your fullest potential. As a result, at Aon, you are more connected, more relevant, and more valued.

Aon values an innovative and inclusive workplace where all colleagues feel empowered to be their authentic selves. Aon is proud to be an equal opportunity workplace.

Aon provides equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, creed, sex, sexual orientation, gender identity, national origin, age, disability, veteran, marital, domestic partner status, or other legally protected status.

We are committed to providing equal employment opportunities and fostering an inclusive workplace. If you require accommodations during the application or interview process, please let us know. You can request accommodations by emailing us at ReasonableAccommodations@Aon.com or your recruiter. We will work with you to meet your needs and ensure a fair and equitable experience.

#commercialriskandreinsurancesolutions

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