We are seeking a Senior Application Developer with extensive experience in Go (Golang), Java, virtualized environments, and containerization technologies. The ideal candidate will bring a strong security-first mindset, proven experience working with certificates and encryption mechanisms, and the ability to design and deliver scalable, secure, and high-performance applications in modern cloud-native environments.
As a senior member of the team, you will play a key role in system architecture, technical decision-making, mentoring junior developers, and ensuring best practices in application security and reliability.
Responsibilities
Design, develop, and maintain secure, scalable backend applications using Go (Golang) and Java
Lead the development of containerized microservices using Docker and Kubernetes
Build and optimize applications running on virtualized platforms
Implement and manage application-level security, including authentication, authorization, and secure communication
Work extensively with TLS, SSL certificates, keystores, truststores, and certificate lifecycle management
Ensure secure handling of secrets, keys, and credentials
Collaborate with DevOps, Cloud, and Security teams to integrate solutions into CI/CD pipelines
Conduct code reviews, mentor junior developers, and promote coding best practices
Troubleshoot complex production issues in distributed systems
Contribute to architectural designs, technical roadmaps, and security reviews
Ensure compliance with security and regulatory standards where applicable
Mandatory Skills Description
Required Skills & Experience
Core Technical Skills
Strong hands-on experience with Go (Golang) and Java (5+ years total development experience preferred)
Deep experience with containerization and orchestration:
Docker / Podman
Kubernetes / OpenShift
Solid understanding of virtualization technologies (VMware, KVM, Hyper-V)
Proven experience developing RESTful APIs and microservices architectures
Strong knowledge of Linux/Unix-based systems
Experience with Git and modern CI/CD pipelines
Security & Certificate Management
Strong experience with application security principles
Hands-on experience with:
TLS/SSL certificates
PKI, X.509 certificates
Keystores and truststores (e.g., JKS, PKCS12)
Understanding of secure communication protocols and encryption
Experience implementing authentication and authorization mechanisms (OAuth2, JWT, mTLS)
Familiarity with secure secret management tools (e.g., vault-based systems)
Key Skills
Ranked by relevance
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- Posted
- Jun 16, 2026
- Type
- Full-time
- Level
- Mid-Senior
- Location
- Bucharest
- Company
- Luxoft
Industries
Categories
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3 roles aligned with this opportunity
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