Senior C++ Developer

C

Długa 72, Kraków

Keepit

Full-time

Permanent

Senior

Hybrid

Tech stack

С++

master

XML

advanced

English

advanced

TCP

advanced

SQL

advanced

RESTful API

advanced

HTTP

advanced

Job description

Do you want to join us on an ambitious mission to secure the digital world?

Keepit is looking for Linux-based C++ Developers to join our Engineering Team in Krakow, Poland.

We are growing fast as a company and do our best to bring our SaaS cloud-based backup services to the global audience.

Our platform is designed to provide customers with an immutable historical archive of their primary data in systems such as Microsoft 365, Google Workspace, Salesforce, Azure AD, Dynamics 365, and Zendesk. It aims to protect them against everything, from ransomware to simple accidents.

Most of our back-end components are written in clean, modern C++ using mainly purpose-built components and STL. Several components that deal with business processes and data mining are built using Common Lisp. Everything runs on Linux.

Backing up billions of objects over foreign APIs using imperfect networks on systems with finite memory and making it all happen in as little time as possible is no small feat.

If you think solving complex problems is fun, we have strong indications that we will not run out of complicated issues soon. Join us for fun!

Central tasks as a C++ Developer with Keepit will include:

• Participate in the entire SDLC
• Take part in the development of new features
• Troubleshoot issues with Support and deliver fixes
• Work with Operations on performance improvements
• Identify and resolve shortcomings autonomously or with colleagues

Required skills:

• Good modern C++ understanding
• Good understanding of TCP, HTTP, RESTful APIs and XML
• Working and coding experience for Linux systems
• General SQL understanding

A fair and transparent recruitment process:

During the recruitment process, you can expect the following stages:

Recruitment interview, technical pre-screen, technical assignment, technical interview.

You will be assessed according to the criteria below:

1. Technical skills: We are looking for candidates proficient in modern C++ programming with all the necessary skills.
2. Team collaboration: You must be able to negotiate with the team regarding improvements to our product and structures.
3. Language: English is a preferred language, and we expect you to be fluent in both written and spoken.
4. Proactive approach: We look for proactive candidates who can lead ideas. We highly appreciate a spirit of innovation and responsibility.

If you have any questions about the job or the recruitment process, please get in touch with Khrystyna Kulyk at [email protected].

We offer:

• Umowa o pracę employment contract
• 4 additional working days of vacation leave per full calendar year (i.e. 30 working days in total)
• Health and Life Insurance
• 3 days of internal sick leave without a doctor`s note
• Employee Capital Plan (PPK)
• Multisport card compensation
• Full or partial coverage of professional training sessions, meetups, etc
• English-speaking club with native speakers
• Cosy office in Krakow city centre (Długa, 72) with beverages, fruit, and cookies
• Winter and summer parties, events, team-buildings

We kindly ask you not to provide us with any sensitive categories of personal data when applying for a job with us. When applying for the vacancy, Keepit will process your personal data, and therefore we recommend that you also read our privacy policy , which describes our processing of personal data and your rights as a data subject.

Published: 13.08.2025

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