Senior .NET Developer / Technical Lead

Senior .NET Developer / Technical Lead (WARSAW)

Location: Warsaw, Poland 
Type: Full-time, in-house (NO Remote)
Remote: No
Workplace: New advanced office in Warsaw
Salary: Up to $6,500/month equivalent, based on experience
Bonus: Performance-based bonuses linked to delivery and output

One of the largest logistics and storage companies in the region is looking for a Senior .NET Developer / Technical Lead to take ownership of a major technology project.

This is a hands-on lead role for someone with strong commercial experience who can join as the main technical person, work directly with the CEO and leadership team, build the core platform foundation, and later help grow the development team around it.

The project is focused on reducing dependency on legacy operational software by creating a modern, API-connected platform using a strong CRM/CMS-style foundation, with custom integrations where needed.

What you will do

• define the technical architecture
• build and configure the core platform foundation
• design and connect APIs between key systems
• integrate website, customer portal, mobile app, access control, payments, reporting, and notifications
• create clean documentation and development standards
• decide what should be built, bought, configured, or integrated
• help recruit and lead additional developers once the foundation is ready

What we need

• strong commercial experience with .NET / C#
• proven experience building or leading real business platforms
• good understanding of CRM, CMS, ERP, or operational systems
• experience with API architecture and third-party integrations
• database and cloud infrastructure knowledge
• strong security, permissions, and documentation mindset
• ability to work hands-on and deliver visible progress
• confidence working directly with senior leadership

What we offer

• full-time in-house role in Warsaw
• new advanced office environment
• direct cooperation with the CEO and leadership team
• long-term strategic technology project
• real ownership of technical direction and delivery
• opportunity to build and lead your own team over time
• salary up to $6,500/month
• performance-based bonuses linked to measurable output
• possible residency / work permit sponsorship for Ukrainian candidates where required

Who this suits

This role suits someone who wants real ownership and responsibility. You will not join a large existing development team or maintain someone else’s roadmap. You will be the first key technical lead on the project.

You will build the core, prove the architecture, connect the right systems, and help create the future technology infrastructure of a fast-growing logistics and storage company.