Senior .NET/React Engineer — Build Scalable APIs

Vention; Łódź; Hybrid; PLN 102,000 - 122,000; Full time

Benefits offered by this job

EDU corporate community

Licenses for AI tools

Private medical care

Kafeteria MyBenefit credits

Multisport membership

Glasses reimbursement

Referral bonuses

Job summary

Vention is a global engineering partner to tech leaders and fast-growing startups, combining 20+ years of product development expertise with an AI-first approach and a reputation for reliable delivery. We’ve been building robust .NET solutions since 2002 — from microservice-based systems to high-load, enterprise-grade platforms.

This role focuses on architecting production-grade .NET solutions, leading full-cycle development, engaging stakeholders in Agile ceremonies, and driving code quality

Qualifications

• 4+ years of professional .NET development experience.
• Experience building REST APIs with versioning.
• Experience with React and TypeScript.
• Strong SQL/relational database skills.
• Hands-on AWS experience.
• English at B2 level or higher with experience communicating with English-speaking customers.
• Willingness to learn and adapt to new technologies.

Responsibilities

• Architect and deliver production-grade .NET solutions with a focus on performance and scalability.
• Lead full-cycle development from requirements analysis through deployment and optimization.
• Engage stakeholders through demo sessions, Agile ceremonies, and technical workshops.
• Champion code quality through rigorous reviews and robust test automation strategies.
• Contribute to business growth by participating in technical estimations, planning, and pre-sales activities.
• Optional leadership: Conduct technical interviews, mentor team members, and share expertise at industry events.

Skills

.NET development

REST APIs

React

TypeScript

Relational databases

AWS

ERP systems knowledge

English (B2+)

Continuous learning

Job description

Vention is a global engineering partner to tech leaders and fast-growing startups, combining 20+ years of product development expertise with an AI-first approach and a reputation for reliable delivery. We’ve been building robust .NET solutions since 2002 — from microservice-based systems to high-load, enterprise-grade platforms.

This role focuses on architecting production-grade .NET solutions, leading full-cycle development, engaging stakeholders in Agile ceremonies, and driving code quality