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

Exerizon; Warszawa; On-site; PLN 120,000 - 180,000; Full time

Job summary

Exerizon is seeking a Software Developer with 2+ years of commercial experience to build, customize, and integrate enterprise CRM, workflow, and AI solutions. You will work with the Creatio team to develop applications and integrations.

Responsibilities include building AI workflows, API integrations, and optimized database queries using C#, JavaScript, and SQL. English proficiency at B2+ is required; remote work is not specified. Direct mentorship from senior engineers is offered.

Qualifications

• 2+ years of commercial full-stack development experience.
• Experience with AI workflows and enterprise applications.
• Proficiency in C#, .NET Framework, and modern .NET 6/8.

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

English B2+

Full-stack development

Tools

C#

JavaScript

Angular

REST API

SOAP/WCF

SQL (T-SQL/PL-SQL)

.NET Framework

.NET 6/8

CRM software

Workflow engines

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: 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.