Senior Software Engineer (C/С++)

Level

Middle

Department

С/С++

Type

Full Time

Project

Locations:

Poland

Romania

Czech Republic

Hungary

Remote

Job Details

Posted on:

September 22, 2025

Job ID:

About the Company

Established in 2004, ALLSTARSIT was founded with a clear vision: to enhance the landscape of global IT employment by bridging the gap between companies and skilled professionals. The core belief was that assembling a team shouldn't be hindered by geographical constraints. Fast forward to the present day, ALLSTARSIT stands as an international outstaffing service provider committed to change the way businesses recruit, compensate, and oversee top talent worldwide.

With operational hubs scattered across Europe, Asia, and LATAM, and its headquarters situated in San Francisco, US, the company boasts a workforce of over 1,000 adept professionals. Spanning across more than 20 countries, ALLSTARSIT offers a diverse range of skilled employees across various verticals, including AI, cybersecurity, healthcare, fintech, telecom, media, and so on.

About the Project

We are looking for a talented Software Engineer to design, build, and optimize the core engine of our high-performance database system. This is a deep, systems-level role focused on theinternals of how a database works. You will be responsible for creating the fundamental components that store, retrieve, and process data efficiently.This is a role for an engineer who builds the database itself, not an application developer who uses a database.

Specialization

Headquarters

Years on the market

Team size and structure

Current technology stack

Required skills:

Strong experience in systems programming, preferably C/C++
Deep understanding of database internals (e.g., query planners, storage engines, transaction processing).
Expertise in fundamental computer science concepts like data structures, algorithms, and operating systems.
Proven experience building or contributing to complex, high-performance systems such as databases, file systems, or distributed data platforms.
BSc (MSc -advantage) degree in Computer Science, Engineering, or equivalent‍
Note: Experience limited to writing SQL queries or database administration is not a fit for this position. We are seeking engineers with experience in the core engineering of a database system.

Scope of work:

Design & Develop Database Components: Implement and enhance core database features, including the storage engine, query execution engine, and transaction manager.
Optimize Performance: Work on low-level data structures (like B-Trees or LSM-Trees), concurrency control mechanisms (MVCC), and query optimization algorithms to improve speed and efficiency.
Build the Query Engine: Develop the system that parses, plans, and executes user queries against our data structures.
Ensure Reliability: Implement mechanisms for data recovery, consistency, and durability.