Senior Backend Engineer (Node.js, AWS, Python/C#)

Senior Backend Engineer (Node.js, AWS, Python/C#)

JavaScript

Lubicz 23a, Kraków

ALTEN Polska

Full-time
B2B, Permanent
Senior
Remote

Tech stack

    English

    C1

    Node.js

    master

    AWS

    advanced

    C#

    regular

    Python

    regular

Job description

WHO WE ARE AT ALTEN?


We are a world leader in Engineering and IT Services, building tomorrow’s world today.


ALTEN, established in 1988 in France, has been recognized for 35 years as a tier-one technological partner of major clients within the industry. With a financial turnover of more than 4.07 billion euros in 2023, we currently have more than 57,000 employees all over the world, including 88% high-level consulting engineers.


ALTEN Polska has been proudly supporting its customers’ development strategies in the areas of innovation, R&D, and technological information systems for 13 years already. Our offices are established in five cities: Kraków, Warszawa, Wrocław, Gdańsk, and Poznań.


We support key players in the following industries: Aeronautics, Space, Automotive, Industrial Solutions, Railway, Energy, Finance, Telecommunications and Sales.


Our expertise includes: business analysis, cybersecurity, artificial intelligence, data analytics and cloud solutions, application development, software testing, project management, embedded software, quality management, design processes, industrialization and digital transformation, and industrial engineering.


Learn more www.altenpolska.pl


WHAT YOUR CHALLENGES WILL BE?

  • Join a self-organizing, top-notch agile team responsible for building, owning, and operating client's services

  • Contribute to all aspects of service development using Node.js, writing clean, simple, and high-quality code following best practices

  • Work with microservices, serverless architecture, and a wide range of AWS services in a large-scale production environment

  • Collaborate closely with product managers to understand requirements and translate them into elegant, effective implementations


WHAT DO WE REQUIRE?

  • BSc / MSc in Computer Science, Mathematics or a related technical field

  • 8+ years experience with cloud application development using Node.js and Javascript/Typescript

  • Experience with Python or C#

  • Migrating services from one stack/languages to another

  • Excellent written and verbal technical communications skills (English)

  • Beneficial experience with CI/CD & DevOps

  • Experience with AWS is a must

  • Experience with React is preffered

  • Experience with Git or equivalent distributed revision control systems

  • Availability for occasional visits in Kraków office


WHAT CAN WE OFFER?

  • A full-time contract with possibility to choose the form of employment (UoP/B2B)

  • Stable and long-term cooperation

  • Support of a dedicated manager and Career Management team

  • A clearly defined career path and the possibility of development in four areas as: Project Manager, Business Manager, Technical Leader and a specialist in their field.

  • Participation in company conferences, trainings, workshops, integration meetings, etc.

  • Certification and training opportunities

  • Opportunity to relocate and work in different ALTEN Polska branches


BENEFITS

  • Medicover medical care

  • Medicover dental care

  • Medicover Benefits platform / Medicover Sport card

  • Employee referral program

  • Layette for a newborn employee’s child

  • Group life insurance

  • Pension scheme


Join our team and let’s build tomorrow’s world today!


NOTICE: We kindly inform you that we will contact the selected people.


“By clicking the "Send" button, you agree to the processing of your personal data contained in the recruitment application by Alten Polska sp. z o.o., with its registered office in Warsaw, for the purpose of conducting the recruitment process for the position specified in the job advertisement.

You may withdraw your consent at any time by contacting us at ALTEN_PL_RODO@alten.com, which will result in the termination of the recruitment process and the exclusion of your application from future recruitments.

You can find the full information on the processing of your personal data: https://docs.altenpolska.pl/do_pobrania/Klauzula_informacyjna_dla_potencjalnych_pracownikow_EN.pdf

Published: 29.08.2025

Meet the company

ALTEN Polska

Jesteśmy częścią ALTEN Group, utworzonej w 1988 roku we Francji i mającej siedziby w 30 krajach. Grupa ALTEN przez 35 lat ugruntowała swoją pozycję światowego lidera w dziedzinie inżynierii i usług IT.Wspieramy kluczowych graczy w branżach: lotniczej, kosmicznej, obronnej, morskiej, motoryzacyjnej, kolejowej, energetycznej, finansowej, telekomunikacyjnej, sprzedażowej i biomedycznej.Przy obrotach finansowych przekraczających 4 miliardy euro w 2024 roku, ALTEN zatrudnia obecnie ponad 57 700 pracowników na całym świecie.

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