Mid-level Software Engineer (.NET / Angular / Creatio) (90 pln net / h / b2b)

Exerizon; Warszawa; On-site; PLN 90,000 - 130,000; Full time

Job summary

Exerizon is seeking a Software Developer with 2+ years of commercial experience to help build, customize, and integrate enterprise business solutions (CRM, workflow, and AI workflows/integrations).

You will work with Creatio team to build and maintain business applications, develop AI workflows, APIs, and database queries, and contribute to solution design and documentation. Strong C#, .NET, JavaScript, and SQL skills are required, with English communication at B2+.

Qualifications

• 2+ years of commercial full-stack development experience.
• Proficient in C# and .NET Framework.
• Experience designing/consuming RESTful APIs and working with relational DBs.
• Knowledge of web app architecture and relational DB design.
• English communication at B2+.

Responsibilities

• Develop AI workflows & enterprise applications using C#, JavaScript, and relational databases.
• Build and maintain API integrations using REST, OData, and legacy protocols (SOAP/WCF where applicable).
• Write and optimize database queries (T-SQL/PL-SQL).
• Collaborate with solution architects to design technical specs and document API contracts.

Skills

C# & .NET

JavaScript

Angular

SQL

REST APIs

SOAP/WCF

OData

English B2+

Architecture basics

Tools

REST APIs

OData

SOAP/WCF

Job description

We are looking for a Software Developer with 2+ years of commercial experience to help build, customize, and integrate enterprise business solutions (CRM, Workflow, and AI workflows/integrations). You will work alongside Creatio team to build and maintain business aplications.

What you’ll do:

• Develop AI workflows & enterprise applications using C#, JavaScript, and relational databases.
• Build and maintain API integrations using REST, OData, and legacy protocols (SOAP/WCF where applicable).
• Write and optimize database queries (T-SQL/PL-SQL).
• Collaborate with solution architects to design technical specs and document API contracts.

Experience:

Experience: 2+ years of commercial full-stack development experience.

Backend:

• Strong foundation in C#, .NET Framework, and modern .NET 6/8.

Frontend:

• Proficiency in JavaScript and modern frontend frameworks (e.g., Angular).
• Familiarity with legacy JS patterns (like RequireJS) is a plus.

Databases & APIs:

• Solid SQL skills (T-SQL or PL-SQL) and hands-on experience designing/consuming RESTful APIs and web services.

Architecture:

• Basic understanding of web application architecture and relational DB design.

Languages:

• English B2+ (written and spoken).

Nice to have:

• experience working with CRM software and workflow engines.

Growth Environment:

• Direct mentorship from senior architects and lead engineers.

Tech & Tools:

• Professional certifications budget, hardware & software provided.

Flexible Working Hours:

• Core hours with freedom to manage your day.