Sii
Engineering Services · IT Staffing & Staff Augmentation
139open roles
$80kmedian advertised pay
Scaling fasthiring pace, 86 of 100
3countries with offices
Overview
Sii is one of the largest technology and engineering services companies in Poland, supplying software engineers, testers, infrastructure specialists and industrial engineers to clients across Europe. Its consultants work on application development, quality assurance, cloud and network infrastructure, business intelligence, enterprise applications and embedded engineering, either inside client teams or in delivery centres run by the firm. Headquartered in Warsaw with offices in more than a dozen Polish cities, it employs several thousand specialists and is known locally for the volume of technology vacancies it advertises at any one time.
Jobs
Hybrid · Contractor · Kraków · Poznań · Warsaw · Toruń · Wrocław
OpenSearch
DevOps
Azure
CI/CD
Windows Server
Octopus Deploy
Windows
DNS
Apply
Hybrid · Full-Time · Kraków · Poznań · Warsaw · Toruń · Wrocław
Python
Copilot
Cursor
LangGraph
LangChain
Claude
Claude Code
Function Calling
Computer Vision
AI Agents
Gradio
Semantic Kernel
LLM
RAG
Streamlit
Agentic Workflows
DevOps
GCP
Azure
AWS
Apply
Hybrid · Full-Time · Kraków · Poznań · Warsaw · Toruń · Wrocław
Python
Copilot
Cursor
LangGraph
LangChain
Claude
LoRA
Fine-tuning
RLHF
Computer Vision
AI Agents
PEFT
QLoRA
Semantic Kernel
Hybrid Search
LLMOps
DPO
Knowledge Graph
Agentic Workflows
DevOps
GCP
Azure
CI/CD
AWS
Apply
$49k – $55k per year · In office · Full-Time · Kraków · Poznań · Warsaw · Toruń · Wrocław
Python
SQL
Airflow
dbt
DevOps
GCP
Git
Analytics
Power BI
ETL/ELT
Apply
In office · Contractor · Warsaw
Python
SQL
FastAPI
DevOps
Rest API
CI/CD
Git
Management
Agile
Scrum
Apply
Hybrid · Contractor · Kraków · Poznań · Warsaw · Toruń · Wrocław
Confluence
Jira
Agile
UML
BPMN
Apply
Hybrid · Full-Time · Kraków · Poznań · Warsaw · Toruń · Wrocław
Azure
Management
Agile
Apply
$70k – $83k per year · In office · Contractor · Kraków · Poznań · Warsaw · Toruń · Wrocław
Python
SQL
Microsoft Fabric
DevOps
Azure DevOps
Azure
CI/CD
GitHub
Cybersecurity
GDPR
Analytics
Azure Data Factory
Dimensional Modeling
Management
Agile
Apply
In office · Contractor · 3+ years exp · Warsaw
Power Apps
SharePoint
Apply
Apply
Hybrid · Contractor · 5+ years exp · Wrocław
C#
.NET
AI/ML
Claude
AI Agents
Anthropic
Mobile
MAUI
Apply
$64k – $76k per year · Hybrid · Contractor · 5+ years exp · Warsaw
Apply
Salary insights
Compensation ranges based on this company's open jobs
Median
$80k
Typical range
$55k – $114k
Open positions
6
6
Jobs
Senior
83.3%
Staff
16.7%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Senior | 5 | $77k | $55k – $109k |
| Staff | 1 | $114k | $114k |
Highest paying role
SAP S/4HANA Solution Architect (f/m/x)
$114k
Normalized to USD per year
All salaries at Sii
By role, level and city, against the market · 6 jobs with pay
Growth
Hiring Momentum
86/100
Scaling fast
Open positions
162
71 opened / 97 closed in 30 days
Median time-to-fill
45 days
faster than 30% of the market
ATS activity
Every ~4 hours
11/03/2026
Hiring Dynamics
+58%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Enterprise Apps
14%
Backend
13% ▼
Analytics
9%
Data Science
8%
QA
8%
DevOps
7% ▼
Actively hiring for Enterprise Apps (+19 in 30 days)
Activity Timeline
Added OpenVINO to stack
Nov 2026
Added ONNX Runtime to stack
Nov 2026
Added MAUI to stack
Nov 2026
Added Anthropic to stack
Nov 2026
Added LIMS to stack
Nov 2026
Added Antibody Engineering to stack
Nov 2026
New location: Buenos Aires
Nov 2026
Added Material Design to stack
Oct 2026
Added Gitflow to stack
Oct 2026
Added AutoGen to stack
Oct 2026
Added ANSYS to stack
Oct 2026
Added Abaqus to stack
Oct 2026
Products
Engineering Services
Embedded and industrial engineers for manufacturing and automotive clients. The practice sits alongside the software business.
sii.pl
Business Intelligence
Data warehousing, reporting and analytics delivery for corporate clients. It includes platform migration work.
sii.pl
Quality Assurance
Manual and automated testing teams for enterprise applications. Engagements range from single testers to whole test functions.
sii.pl
Infrastructure and Cloud
Network, systems and cloud specialists for migration and operations work. The practice serves telecommunications and finance clients.
sii.pl
Software Development Services
Engineers supplied to client projects or to the firm's own delivery centres. It covers most enterprise technology stacks.
sii.pl
Tech stack
Technologies named in job postings at Sii over the last 12 months, by layer, with the share of postings for each.
Technologies in use
364
Postings analysed
374
Stack modernity
80/100AI adopter
Languages
Python32%
SQL27%
Java19%
JavaScript17%
TypeScript10%
C++8%
C#7%
PowerShell5%
Frameworks & libraries
React.js6%
Angular5%
Selenium4%
LangChain4%
LangGraph3%
JUnit3%
NumPy3%
Playwright3%
Databases
PostgreSQL6%
Snowflake5%
Google BigQuery3%
Oracle3%
MS SQL3%
Azure SQL Database2%
ElasticSearch2%
Redis1%
Cloud & platforms
Azure25%
AWS19%
Kubernetes13%
GCP12%
Azure DevOps9%
Linux9%
GitHub8%
Databricks8%
Developer tools
Git15%
Rest API15%
Jenkins10%
Docker9%
Terraform8%
Copilot5%
Cursor4%
pySpark4%
AI & ML
LLM6%
Claude5%
PEFT1%
LoRA1%
QLoRA1%
YOLO<1%
CLIP<1%
Gemini<1%
Practices & domains
CI/CD34%
ETL/ELT7%
AI Agents5%
Machine Learning5%
Incident Management3%
IAM3%
RAG3%
Computer Vision3%
Other
Kotlin Coroutines<1%
SAP BAPI<1%
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Offices
Where the company hires and what each office is for
Cities
17
Hiring now
17
Countries
3
Busiest office
Warsaw
Loading the map
Headquarters
Builds here
Office with open vacancies
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Warsaw
Poland
HQ
25 open roles 79 posted in 90 days 76% engineering 12% remote 1000-5000 est. staff $58k Avg Salary
hires for Enterprise Apps, Backend, DevOps
Białystok
Poland
Remote hub
64 open roles 102 posted in 90 days 80% engineering 91% remote 1000-5000 est. staff $58k Avg Salary
hires for Enterprise Apps, Data Science, Backend
Kraków
Poland
Engineering / R&D
16 open roles 38 posted in 90 days 75% engineering 500-1000 est. staff $58k Avg Salary
hires for DevOps, Backend, QA
Poznań
Poland
Engineering / R&D
10 open roles 18 posted in 90 days 90% engineering 10% remote 200-500 est. staff $58k Avg Salary
hires for Analytics, Mobile, Enterprise Apps
Łódź
Poland
Engineering / R&D
7 open roles 23 posted in 90 days 86% engineering 14% remote 500-1000 est. staff $58k Avg Salary
hires for QA, AI/ML, Backend
Katowice
Poland
Engineering / R&D
7 open roles 19 posted in 90 days 86% engineering 200-500 est. staff
hires for QA, AI/ML, Backend
Wrocław
Poland
Engineering / R&D
5 open roles 16 posted in 90 days 80% engineering 200-500 est. staff $58k Avg Salary
hires for DevOps, Security, Support
Lublin
Poland
Engineering / R&D
4 open roles 20 posted in 90 days 75% engineering 75% remote 200-500 est. staff
hires for QA, Data Science, HR
Gdańsk
Poland
Engineering / R&D
4 open roles 10 posted in 90 days 100% engineering 200-500 est. staff
hires for Backend, QA, Hardware
Stockholm
Sweden
Engineering / R&D
4 open roles 4 posted in 90 days 75% engineering 50-200 est. staff
hires for Backend, Hardware, Public Policy
Bengaluru
India
2 open roles 6 posted in 90 days 50% engineering 50-200 est. staff
hires for Analytics, Operations
Rzeszów
Poland
2 open roles 6 posted in 90 days 50% engineering 50-200 est. staff $58k Avg Salary
hires for DevOps, Industrial Engineering
Bydgoszcz
Poland
1 open roles 5 posted in 90 days 100% engineering 50-200 est. staff $58k Avg Salary
hires for DevOps
Dąbrowa Górnicza
Poland
1 open roles 1 posted in 90 days 100% engineering 10-50 est. staff
hires for Backend
Tychy
Poland
1 open roles 2 posted in 90 days 10-50 est. staff
hires for Industrial Engineering
Toruń
Poland
1 open roles 2 posted in 90 days 100% engineering 10-50 est. staff $58k Avg Salary
hires for DevOps
Gothenburg
Sweden
1 open roles 1 posted in 90 days 10-50 est. staff
hires for Field & Service
Earlier presence
Hyderabad, India
Chennai, India
Zabrze, Poland