Senior .NET Software Engineer (Fullstack) / 1

Inetum; Warszawa; On-site; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Hybrid work model

Training & conferences funded

Referral bonuses up to PLN 6,000

Team mentoring & career development

Wellbeing & team events

Job summary

Inetum Polska, part of Inetum Group, is seeking a Senior .NET Software Engineer (Fullstack) to enhance our internal CRM and workflow systems. You will collaborate with business stakeholders and influence architectural decisions across the software lifecycle.

The role requires strong C#, .NET, Angular/TypeScript skills and experience with SQL databases. We offer hybrid work in Poland, extensive training funding, and opportunities for career growth.

Qualifications

• Active development of internal CRM and workflow platforms.
• Backend systems optimization and enhancement.
• Experience with RESTful APIs and SOAP services.
• Strong C# and .NET Framework/Core knowledge.
• Fluency in English and Polish (B2+).

Responsibilities

• Develop and enhance internal CRM and workflow platforms.
• Contribute to backend system design and performance improvements.
• Participate in all phases of the software development lifecycle, including architectural design.
• Conduct code reviews to maintain high quality standards.
• Translate business requirements into technical solutions.

Skills

C#

RESTful APIs

SQL

Multithreading

Angular

TypeScript

English (B2+)

Polish (B2+)

Tools

MS SQL Server

Informix

MySQL

Jenkins

Job description

Senior .NET Software Engineer (Fullstack) / 1

• Full-time

Inetum Polska is part of the global Inetum Group and plays a key role in driving the digital transformation of businesses and public institutions. Operating in cities such as Warsaw, Poznan, Katowice, Lublin, Rzeszow, Lodz the company offers a wide range of IT services. Inetum Polska actively supports employee development by fully funding training, certifications, and participation in technology conferences. Additionally, the company is involved in local social initiatives, such as charitable projects and promoting an active lifestyle. It prides itself on fostering a diverse and inclusive work environment, ensuring equal opportunities for all.

Globally, Inetum operates in 19 countries and employs over 28,000 professionals. The company focuses on four key areas:

Consulting (Inetum Consulting): Strategic advisory services that help organizations define and implement innovative solutions.

Infrastructure and Application Management (Inetum Technologies): Designing and managing IT systems tailored to clients’ individual needs.

Software Implementation (Inetum Solutions): Deploying partner solutions from industry leaders like Microsoft, SAP, Salesforce, and ServiceNow.

Custom Software Development (Inetum Software): Creating unique software solutions to meet specific client needs.

With strategic partnerships with major technology giants, including Microsoft, SAP, Salesforce, and ServiceNow, Inetum delivers advanced technological solutions tailored to customer requirements. In 2023, Inetum reported revenues of €2.5 billion, underscoring its strong position in the digital services market.

Inetum distinguishes itself by offering a comprehensive range of benefits that meet the diverse needs of employees, providing flexibility, support and commitment. Here's what makes working at Inetum unique:

Flexible and hybrid work:

Hybrid work model, allowing employees to divide their time between home and modern offices in key Polish cities.

A cafeteria system that allows employees to personalize benefits by choosing from a variety of options.

Generous referral bonuses, offering up to PLN6,000 for referring specialists.

Additional revenue sharing opportunities for initiating partnerships with new clients.

Professional development and team support:

Ongoing guidance from a dedicated Team Manager for each employee.

Tailored technical mentoring from an assigned technical leader, depending on individual expertise and project needs.

Community and Well-Being:

Dedicated team-building budget for online and on-site team events.

Opportunities to participate in charitable initiatives and local sports programs.

A supportive and inclusive work culture with an emphasis on diversity and mutual respect.

We are looking for an experienced Senior .NET Software Engineer (Fullstack) to join our development team. You will play a key role in building and enhancing our internal CRM and workflow management systems, working closely with business stakeholders and contributing to architectural decisions across the entire software lifecycle.

Your Responsibilities

Active development of our internal, custom CRM and workflow management platforms

Contribute to the development, improvement, and optimization of back-end systems

Participate in all phases of the software development cycle, including architectural design

Identify and implement improvements in quality, performance, and maintainability

Conduct code reviews to ensure high software standards

Clarify and translate business requirements into technical solutions

Project Technology:

Databases:

MS SQL Server, Informix, MySQL

Frontend:

Angular 17, TypeScript

CI/CD & Infrastructure:

Strong knowledge of .NET Framework 4.8 and .NET Core

Excellent command of C#

Solid understanding of relational databases and SQL fundamentals

Experience with MS SQL Server, Informix, or MySQL is a plus

Experience building and consuming RESTful APIs

Experience with SOAP (ASMX) web services

Additional Experience

• Multithreading & Asynchronous programming
• Advanced SQL expertise

Soft Skills

• English and Polish level B2 or higher
• Willingness to learn the business domain and collaborate closely with non‑technical stakeholders

Nice to Have

• Jenkins