Principal Full-Stack Developer – Poland & Brazil

Luxoft; Polska; On-site; PLN 180,000 - 300,000; Full time

Job summary

Luxoft in Poland is seeking passionate developers to craft innovative risk management solutions for Portfolio Managers. You will join a small, agile team of technologists building the next generation of risk and analytics tools.

The role covers end-to-end software lifecycle from requirements through testing, release, and support. You will design, develop, test, deploy, and maintain scalable applications using C#/.NET and Angular, with emphasis on high availability and performance.

Qualifications

• 8+ years of software engineering experience (finance preferred).
• Deep expertise in C#/.NET.
• At least 4 years of frontend development experience.
• Strong knowledge of Angular and TypeScript (last 3 years).
• Strong CS fundamentals: algorithms and data structures.
• OOD/OOP understanding.
• Solid knowledge of SOLID principles and design patterns.
• Experience with multi-threaded/concurrent programming.
• Proven ability to design, build and support scalable, high-availability production apps.
• Strong backend focus with commitment to learning and improvement.
• Excellent English communication; strong collaboration and stakeholder management.
• Independent, proactive mindset with high ownership.

Responsibilities

• Collaborate with business stakeholders to understand requirements and translate them into technical solutions.
• Design, develop, test, deploy, and maintain scalable applications using C#/.NET and Angular.
• Enhance and extend existing functionality based on user feedback and evolving business needs.
• Develop complex business logic and analytical calculations to support capital usage and scenario modeling workflows.
• Build and maintain interactive data visualizations, reports, and charts.
• Develop and integrate REST/HTTP-based services and messaging solutions where required.
• Troubleshoot, debug, and resolve production issues while ensuring high availability and performance.
• Participate in code reviews, technical design discussions, and continuous improvement initiatives.
• Work closely with a small, cross-functional team to deliver high-quality software.
• Ensure software quality through unit testing, integration testing, and adherence to engineering best practices.

Skills

C#/.NET

Angular

TypeScript

Algorithms and data structures

OOD/OOP

SOLID principles and design patterns

Multi-threaded/concurrent programming

Production-grade software

English communication

Stakeholder management

Ownership and accountability

Job description

Luxoft in Poland is seeking passionate developers to craft innovative risk management solutions for Portfolio Managers. You will join a small, agile team of technologists building the next generation of risk and analytics tools.

The role covers end-to-end software lifecycle from requirements through testing, release, and support. You will design, develop, test, deploy, and maintain scalable applications using C#/.NET and Angular, with emphasis on high availability and performance.