Senior Developer

HCL Technologies Sweden AB; Sweden; On-site; BRL 280,000 - 420,000; Full time

Job summary

Sapsf is seeking a Senior Developer to design, develop and support .NET components as a senior individual contributor in Curitiba. You will deliver high-quality, well-tested solutions, resolve complex technical problems and mentor junior engineers within an agile team.

Role emphasizes modern .NET features, clean architecture, test coverage and secure coding practices while collaborating with leads, architects and QA across multi-country teams. On-site Curitiba location with global collaboration.

Qualifications

• 8+ years of hands-on .NET development experience in enterprise environments.
• Strong track record delivering production-grade components across full delivery cycles.
• Bachelor’s degree in Computer Science, Engineering or IT, or equivalent experience.

Responsibilities

• Design and build .NET components, services and enhancements within the agreed architecture and standards.
• Translate user stories and specifications into clean, efficient and testable implementations.
• Handle complex technical problems, performance issues and non-trivial defects independently.
• Contribute to technical design discussions, estimation and solution options.
• Write and maintain unit, integration and regression tests to agreed coverage expectations.
• Participate actively in code reviews, providing and acting on constructive feedback.
• Apply secure coding practices, effective error handling and appropriate logging.
• Deliver committed scope within agreed sprint or release timelines with predictable quality.
• Support build, deployment, environment issues and release verification activities.
• Investigate production incidents, perform root-cause analysis and implement durable fixes.
• Work closely with leads, architects, QA, business analysts and support teams.
• Participate in agile ceremonies, backlog refinement and dependency discussions.
• Mentor junior developers through pairing, reviews and knowledge sharing.

Skills

C#

modern .NET

ASP.NET Core

Web API

dependency injection

async/concurrency

performance tuning

Education

Bachelor's degree in Computer Science/Engineering/IT

Tools

Azure

Containers

Orchestration

CI/CD

IaC

Job description

Career Opportunities: Senior Developer (178591)

Requisition ID178591-Posted10/13/2026

ROLE BAND TECH STACK EXPERIENCE TYPE .Net Senior Developer E1.2 .NET 5+ Years Full-time

Role Purpose

Design, develop and support .NET components as a senior individual contributor: delivering high-quality, well-tested and maintainable solutions, resolving complex technical problems, and supporting less experienced engineers within the team.

Key Responsibilities

• Design and build .NET components, services and enhancements within the agreed architecture and standards.
• Translate user stories and specifications into clean, efficient and testable implementations.
• Handle complex technical problems, performance issues and non-trivial defects independently.
• Contribute to technical design discussions, estimation and solution options.
• Write and maintain unit, integration and regression tests to agreed coverage expectations.
• Participate actively in code reviews, providing and acting on constructive feedback.
• Apply secure coding practices, effective error handling and appropriate logging.
• Deliver committed scope within agreed sprint or release timelines with predictable quality.
• Support build, deployment, environment issues and release verification activities.
• Investigate production incidents, perform root-cause analysis and implement durable fixes.
• Work closely with leads, architects, QA, business analysts and support teams.
• Participate in agile ceremonies, backlog refinement and dependency discussions.
• Mentor junior developers through pairing, reviews and knowledge sharing.

Technology Focus — .NET

• Build and evolve .NET services, Web APIs and background workers with clean separation of concerns.
• Apply modern .NET features, configuration, logging and dependency injection consistently across the codebase.
• Modernize legacy .NET Framework components towards modern .NET, containers and cloud-ready hosting.

Required Technical Competencies

Core Skills C#, modern .NET, ASP.NET Core, Web API, dependency injection, async/concurrency, performance tuning.
Design & Architecture Enterprise application architecture, SOLID, design patterns, DDD, microservices, event-driven design, API management.
Data & Integration Relational data design, Entity Framework, transactions, consistency, caching; REST APIs, messaging, event streaming.
Platform & DevOps Azure or equivalent cloud, containers and orchestration, CI/CD, IaC, automated quality gates, secure supply chain.
Quality & Operations Unit, integration, performance and resiliency testing; production readiness, monitoring, RCA.

Experience & Qualifications

• 8+ years of hands‑on .NET development experience in enterprise environments.
• Strong track record delivering production‑grade components across full delivery cycles.
• Bachelor’s degree in Computer Science, Engineering or IT, or equivalent experience.
• Relevant platform or cloud certifications advantageous, not mandatory.

Leadership & Behavioural

• Strong ownership of assigned deliverables end to end.
• Analytical, detail-oriented approach to problem solving.
• Clear written and verbal communication within a delivery team.
• Collaborative, dependable and open to feedback.

Location-Specific Expectations

• Work from the Curitiba delivery location with local customer stakeholders and global teams.
• Participate in on-site and virtual workshops, design reviews and governance forums.
• Effective communication in a multi-country model, with overlap into European and Indian working hours.

Key Deliverables & Success Measures

• Working, tested and reviewed code delivered to agreed scope and timelines.
• Low defect leakage into system, UAT and production environments.
• Timely resolution of assigned defects and production incidents.
• Accurate technical documentation and effective knowledge transfer.
• Consistent adherence to coding, security and testing standards.