Work model: Hybrid
Work location: Sofia, Bulgaria
Duties and Accountabilities
The Senior .NET Developer will:
- Design, develop, and maintain enterprise applications using Microsoft .NET technologies.
- Lead the delivery of complex software features and system enhancements from concept through production deployment.
- Perform detailed code reviews and establish development quality benchmarks.
- Collaborate in technical design sessions and collaborate with architects, product owners, and business stakeholders.
- Guide development teams in implementing scalable, secure, and maintainable solutions.
- Design and implement integrations with enterprise systems, APIs, messaging platforms, and cloud services.
- Drive adoption of engineering best practices, including automated testing, CI/CD, DevSecOps
- Diagnose and resolve complex application, performance, and production issues.
- Contribute to system modernization initiatives and technical roadmap planning.
Selection Criteria
Required Qualifications
- Bachelor's or Master's degree in Computer Science, Software Engineering, or a related discipline.
- Significant professional software development experience.
- Demonstrated experience leading development teams and major technical initiatives.
Technical Competencies
- Expert knowledge of C#, .NET 8+, ASP.NET Core, Web APIs, Entity Framework, and modern software architecture patterns.
- Experience with Azure cloud services and cloud-native application development.
- Experience with messaging technologies, distributed systems, and event-driven architectures.
- Strong knowledge of relational databases, data modeling, and performance tuning.
- Experience with Azure DevOps, Git, CI/CD pipelines, and automated testing frameworks.
Non-Functional Expertise
- Deep understanding of scalability, reliability, resiliency, and fault-tolerant system design.
- Strong knowledge of application security, identity management, and secure development practices.
- Experience implementing monitoring, telemetry, observability, and operational support frameworks.
- Experience designing highly available and maintainable systems capable of supporting large-scale business operations.
Leadership Competencies
- Proven ability to work in distributed development teams and technical workstreams.
- Strong mentoring and coaching skills.
- Experience conducting solution and code reviews
- Ability to communicate complex technical concepts to technical and non-technical stakeholders.
- Demonstrated ownership and accountability for solution quality and successful delivery outcomes.
Preferred Qualifications
- Experience delivering solutions in large international organizations.
- Experience working within SAFe teams.
- Microsoft Azure certifications.
- Experience with enterprise integration platforms, APIs, and cloud-based architecture.
- Strong analytical, problem-solving, and stakeholder engagement skills.
- Experience supporting mission-critical production systems and driving continuous improvement initiatives.
What we offer:
• Extensive benefits package,
• Open-minded and multinational environment,
• Opportunity to be part of a global organization focused on development,
• Professional development and clear career path,
• Training & development opportunities including language courses.
If you are looking for another opportunity and are interested in the company, do not hesitate to apply online!
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We are an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, or disability status.
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Sobre a Cognizant
Cognizant (NASDAQ: CTSH) é uma construtora de IA e fornecedora de serviços de tecnologia, criando a ponte entre o investimento em IA e o valor para as empresas por meio do desenvolvimento de soluções de IA completas para nossos clientes. Nossa profunda experiência em setores, processos e engenharia nos permite incorporar o contexto único de cada organização em sistemas tecnológicos que potencializam a capacidade humana, geram resultados tangíveis e mantêm empresas globais à frente em um mundo em rápida transformação. Saiba mais em cognizant.ai ou @cognizant.
A Cognizant é uma empregadora que investe em equidade. Sua candidatura não será pautada em raça, cor, gênero, sexualidade, credo, origem, deficiência, gravidez ou qualquer outra característica protegida pelas leis brasileiras.
Informações adicionais de emprego
Os candidatos podem ser obrigados a comparecer a entrevistas presenciais ou por videoconferência. Além disso, os candidatos podem ser obrigados a apresentar seu documento de identificação emitido pelo estado ou governo atual durante cada entrevista.
Embora nosso sistema permita a candidatura em todos os idiomas, o(s) idioma(s) e o(s) nível(is) de proficiência exigidos para o trabalho variam. No entanto, é necessário um nível básico de inglês para fins de comunicação em toda a empresa.
A Cognizant é uma empregadora que investe em equidade. Sua candidatura não será pautada em raça, cor, gênero, sexualidade, credo, origem, deficiência, gravidez ou qualquer outra característica protegida pelas leis brasileiras.
Se você tem uma deficiência que requer adaptações razoáveis para procurar uma vaga de emprego ou enviar uma candidatura, envie um e-mail para [email protected] com sua solicitação e informações de contato.











