2,088,021open jobs
128,035companies
242,676added this week
Browse all
Salary
≈ $19k – $36k per year (Estimated)
Location
Hybrid (Kraków, Poland)
Seniority
Intern
Employment
Internship

Confirmed on the employer's own hiring board on Nov 4, 2026. First seen by Alion on Sep 7, 2026. Ecolab scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Ecolab is a water, hygiene and infection prevention company headquartered in Saint Paul, Minnesota, supplying cleaning and sanitation chemicals, water treatment programs, food safety services and pest elimination to restaurants, hotels, hospitals, food and beverage plants and heavy industry. Founded in 1923, it is a Fortune 500 company that serves customers at more than 100,000 sites worldwide and owns Nalco Water, its industrial water treatment business. Openings cover sales and territory managers, field service representatives, food safety specialists, lab and manufacturing staff, logistics associates, finance analysts and data and AI engineers.

Ecolab is a global leader in water, hygiene, and energy technologies, dedicated to delivering innovative solutions that make a positive impact worldwide. With operations spanning across 170 countries, Ecolab is committed to sustainability, innovation, and fostering a diverse and inclusive workplace.

There are over 500 of us in our Krakow business center, where we highly specialize in finance, supply chain, accounting, controlling and regulatory. We’re always looking for new talent to join our team. When you come to work at Ecolab, you get to take on some of the world’s most meaningful challenges and have the opportunity to learn and grow, shape your career, make an impact and quickly see the importance of your work.

Ecolab Internship Program - Finance.

As our organization continues to grow, we are seeking ambitious and enthusiastic interns who are eager to learn and build a career in Finance. This is an excellent opportunity for students who want to gain hands-on experience in a global company and develop professionally in a dynamic, international environment.

Interns will join our Finance teams in Kraków and contribute to various functional areas, including:

  • Financial Analysis

  • Supply Chain Finance

  • Finance & Administration (incl. Treasury)

  • Global Business Services

  • Corporate Controlling

  • Accounting

  • Operations & Controls

You will work closely with experienced professionals, support daily operations, and contribute to meaningful projects that impact financial performance across Ecolab.

What We Expect:

  • Active student status with at least six months before thesis defense.
  • Eligibility to work in Poland.
  • Availability of around 30 hours per week, Monday to Friday, in a hybrid setup.
  • Fluency in English.
  • Strong MS Office skills, particularly Excel.
  • Knowledge of VBA, Power BI, or SAP is a plus.
  • Strong communication skills and willingness to work in an international environment.
  • Ability to independently handle tasks and processes after onboarding.

What’s in it For You:

  • Competitive Compensation and benefits package.
  • Flexible working arrangements with hybrid model of work.
  • Thrive in our matrix organization, working across Europe with various teams and cultural backgrounds.
  • Strong teamwork and diverse interactions.
  • Personalized plans with rapid progression.
  • Professional growth supported by active committee for different career levels.
  • High employee satisfaction and responsive feedback.
  • Continuous learning and technical training incl. subject matter experts’ trainings, soft skills and management trainings and LinkedIn learning.
  • Social events such as family events and charity auctions.
  • Comfortable working environment (Library, relaxation area, casual dress code).
  • Parking space for cars and bikes.

At Ecolab, we prioritize our talent-first philosophy by creating the most capable and diverse team to excel at our nearly three million customer sites. Building on a century of innovation, our 48,000 associates help deliver comprehensive science-based solutions, data-driven insights and world-class service to advance food safety, maintain clean and safe environments, and optimize water and energy use, and improve operational efficiencies and sustainability for customers in the food, healthcare, life sciences, hospitality and industrial markets in more than 170 countries around the world. Our solutions not only enhance operational efficiency but also contribute to sustainability and public health, making a positive impact on the world.

We are committed to eliminating unnecessary complexities and embracing a beginner's mindset, continuously seeking new perspectives and innovative solutions to stay ahead in a rapidly changing world.

We are committed to fair equal and diverse treatment of associates and applicants, furthering the principles of Equal Opportunity Employment.

Apply today and join one of the most ethical companies with over a hundred years of history.

Join Ecolab and help us protect what’s vital.

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
2,088,021 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Early Careers
Similar stack
Same company
Kraków
In office · Internship · Beijing
Apply
$42k – $75k per year · In office · Internship · Bachelor's Degree · Warrington
Python
C++
Julia
DevOps
GitHub
Apply
In office · Part-Time · Reno
Apply
$52k – $54k per year · Remote (United States) · Nationals only · Internship · Bachelor's Degree · Chantilly
Python
Rust
AI/ML
LLM
Machine Learning
DevOps
GitLab CI
CI/CD
Git
Docker
Kubernetes
Linux
Cybersecurity
SonarQube
Semgrep
CodeQL
Apply
Remote (United States) · Nationals only · Internship · Bachelor's Degree · Chantilly
Python
JavaScript
AI/ML
Computer Vision
PyTorch
CNN
Image Segmentation
Machine Learning
Frontend
Three.JS
DevOps
Git
Linux
Game Dev
Unity
Design
Blender
Apply
≈ $20k – $37k per year (Estimated) · In office · Internship · Bachelor's Degree · Singapore
Design
Canva
Apply
≈ $21k – $40k per year (Estimated) · In office · Internship · Barueri
Analytics
Power BI
Design
SolidWorks
AutoCAD
Apply
$44k – $50k per year · Equity · Hybrid · Internship · Bachelor's Degree · Eagan
Apply
≈ $21k – $39k per year (Estimated) · In office · Internship · Bachelor's Degree · São Paulo
Apply
Attorney 1 day ago
In office · Full-Time · 1+ year exp · Master's Degree · Kraków
AI/ML
EU AI Act
Cybersecurity
GDPR
Apply
≈ $20k – $38k per year (Estimated) · Hybrid · Full-Time · 2+ years exp · Kraków
Apply
Hybrid · Full-Time · 1+ year exp · Kraków
Analytics
Microsoft Excel
Apply
Hybrid · Contractor · Kraków
Management
Agile
Apply
Hybrid · Contractor · Kraków · Warsaw · Wrocław · Poznań · Gdańsk
Python
SQL
PowerShell
Bash
Python
Flask
FastAPI
DevOps
CI/CD
Jenkins
Docker
Bitbucket
Linux
Windows
DNS
Apply
See all jobs
This is one of many
2,088,021 more open roles from verified company boards, updated every day.