368,530open jobs
9,432companies
50,439added this week
Browse all
Location
In office
Seniority
Senior · 5+ years exp
Employment
Full-Time
Overview
Company
Impact
Profile match
B3Group is a Polish company active in the information technology and business services sector. It delivers IT consulting, software implementation, and support services for corporate clients seeking technology solutions for their operations.

What you work on today shapes where you’ll be tomorrow.

Looking for your next challenge as a Senior C Engineer (with C++)? We may have the right opportunity for you.

At B3, we start with people and their experience. We match projects to your skills and professional growth path. Our consultants work across a wide range of industries and technologies, delivering IT projects both in Poland and internationally. This allows you to build your career in a deliberate way - not by chance.

We are part of an international organization listed on Nasdaq Stockholm, operating in 11 countries. In Poland, we operate with full autonomy. We choose our technologies, processes, and ways of working while maintaining the highest professional standards.

Join us today.

What we offer

  • Work in a Scandinavian culture built on logic, trust, and open dialogue.

  • Health and sports benefits tailored to your needs.

  • Speed Coaching - short sessions designed to provide new perspectives and solutions.

  • Sports training, an internal team, and opportunities to take part in competitions.

Scope of the role:

  • Maintenance and development of an analog / mixed-signal simulator - work on a mature product, 80% of the code is C and around 20% is C++.

    80% of the tasks are maintenance (inside the existing C code), about 20% is new functionality development

  • Algorithms simulating electrical phenomena - working with algorithms that translate an electronic circuit into the digital world: reflections in long lines, disturbances, noise, electrical states on a PCB. Part of these topics is solved with matrix methods and systems of equations

  • Taking over a product area and international cooperation - working hours: Polish timezone, with two afternoon meetings per week with the team in the US (West Coast), code reviews and architecture discussions,

What you need to join us:

Must have:

  • Min. 5 years of commercial experience in software development, fluency in reading and modifying C code and the ability to navigate a large, long-lived codebase, along with experience with C++

  • Manual implementation and interpretation of data structures in C (stack, lists, queues - without STL support) and memory handling: allocation, freeing, conscious choice of variable types

  • Knowledge of data structures and algorithms, understanding of modeling (including mathematical modeling), experience in developing and/or maintaining complex software architecture and algorithms, work in Visual Studio

  • Basics of the physics of electricity and of how electronic circuits are built (current, voltage, circuit analysis), willingness to grow in the direction of simulation algorithms

  • MSc or PhD in computer science, electronics or a related field

  • English: C1+

  • Ability to work within the territory of Poland (citizenship, residence card, visa, etc.)

Nice to have (really nice to have, not a criteria for selection):

  • Understanding of systems of equations and methods of solving them, and familiarity with math-based algorithms (calculus and algebra)

  • Comfort with matrix operations - transformation, inversion, addition, working on large matrices

  • Familiarity with electrical and electronic circuit analysis

  • Familiarity with any hardware description language: VHDL, VHDL-AMS, Verilog, Verilog-AMS

  • Bash scripting, knowledge of Java, scripting of measurements in TCL

  • Experience with EDA-class products and understanding of EDA objects and principles

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.
368,530 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
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

Similar stack
Same company
In your city
$19k – $51k per year (Estimated) • Remote/Hybrid • Full-Time • Moscow
C++
C
C++
STL
C
Valgrind
DevOps
RTOS
IoT
FreeRTOS
Apply
$30k – $63k per year (Estimated) • In office • 3+ years exp • PhD • Moscow
C++
Python
Cython
C++
Asio
CMake
OpenGL
Qt
STL
Cython
PyBind11
AI/ML
Computer Vision
NLP
Apply
$20k – $42k per year (Estimated) • Remote • Moscow
C++
Lua
Python
C++
STL
Databases
Aerospike
ClickHouse
MySQL
PostgreSQL
Redis
Tarantool
DevOps
Debian
Apply
$120k – $220k per year • Equity 0.2–0.8% • Remote/Hybrid • Full-Time • 6+ years exp • San Francisco
C++
Go
JavaScript
Python
TypeScript
Apply
$19k – $28k per year (net) • Remote • Full-Time • Moscow
C#
C++
C++
CMake
DevOps
CI/CD
Git
Management
Jira
Slack
Apply
$35k – $77k per year (Estimated) • In office • Full-Time • Wrocław
SQL
Analytics
Power BI
Apply
$50k – $96k per year (Estimated) • In office • Full-Time • 5+ years exp • Kraków
Java
Kotlin
Kotlin
Kotlin Coroutines
AI/ML
AI Agents
Mobile
Android SDK
Clean Architecture
Firebase
Jetpack Compose
MVVM
DevOps
CI/CD
Git
GitHub Actions
GitLab CI
Rest API
GitHub
GitLab
Management
Confluence
Apply
$52k – $94k per year (Estimated) • In office • Full-Time • Wrocław
Java
Databases
Apache Iceberg
Apache Kafka
Frontend
GraphQL
DevOps
Grafana
OpenTelemetry
Prometheus
Management
Confluence
Jira
Apply
$52k – $93k per year (Estimated) • In office • Full-Time • Wrocław
Java
Java
GraalVM
Quarkus
Spring Boot
Databases
Apache Iceberg
Apache Kafka
Frontend
GraphQL
DevOps
Dynatrace
Grafana
OpenTelemetry
Prometheus
Amazon S3
Management
Confluence
Jira
Apply
$61k – $97k per year (Estimated) • In office • Full-Time • 5+ years exp • Kraków
C#
SQL
C#
.NET
Entity Framework Core
Databases
PostgreSQL
Microsoft Fabric
AI/ML
AI Agents
Claude
Claude Code
LLM
Model Context Protocol
Apply
See all jobs
This is one of many
368,530 more open roles from verified company boards, updated every day.