Senior Solution Architect (.Net)
Hybrid•Full-time•Sofia, Bulgaria (51 "Cherni vrah" Blvd., 1407, Office X Business Garden - Building 4)
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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. Our teams follow best engineering practices like clean architecture, DDD, automated testing, and CI/CD, delivering cloud-native solutions on Azure and AWS.
What you'll do
- Design and evolve scalable, secure, and highly available cloud-native solutions for business-critical applications
- Define end-to-end solution architecture, including system decomposition, service boundaries, data ownership, integration contracts, and communication patterns
- Lead architectural decision-making across multiple engineering teams, balancing business needs, technical requirements, cost, and long-term maintainability
- Drive architecture reviews, establish technical standards, and ensure alignment with engineering best practices
- Design and optimize large-scale distributed systems leveraging modern architectural patterns such as microservices, event-driven architecture, serverless, and modular monoliths where appropriate
- Partner with engineering, product, and business stakeholders to translate complex requirements into practical technical solutions
- Guide cloud architecture initiatives on AWS or Azure, focusing on scalability, resilience, security, disaster recovery, and cost optimization
- Lead architecture modernization, cloud migration, and platform transformation programs
- Define and promote Infrastructure as Code practices using technologies such as AWS CDK, Terraform, CloudFormation, or equivalent tools
- Mentor engineers and technical leads, fostering architectural excellence and helping teams make sound technical decisions
- Evaluate technology choices, frameworks, and architectural patterns, including understanding when a particular approach is not the right fit
- Contribute to long-term technology strategy and support the successful delivery of complex technical initiatives
What you bring
- 7+ years of software engineering experience, including 5+ years working with .NET/C# in production environments
- Proven track record of designing and delivering complex, large-scale distributed systems
- Experience leading technical and architectural decisions across multiple teams and stakeholders
- Strong expertise with at least one major cloud platform, preferably AWS or Azure
- Solid understanding of cloud architecture principles, including high availability, multi-AZ deployments, disaster recovery, scalability, security, identity and access management, serverless architecture, and cost optimization
- Deep knowledge of software architecture concepts and patterns, including monoliths, modular monoliths, microservices, event-driven systems, serverless architectures, and distributed systems
- Strong expertise in architectural principles and practices such as SOLID, Domain-Driven Design (DDD), Clean Architecture, Hexagonal Architecture, CQRS, Event Sourcing, Saga, Outbox/Inbox patterns, and idempotency
- Experience defining domain boundaries, service boundaries, integration strategies, and architectural dependencies
- Hands-on experience with Infrastructure as Code using AWS CDK, Terraform, CloudFormation, or similar technologies
- Excellent communication and stakeholder management skills, with the ability to influence technical direction across diverse teams
What you'll get
- EDU corporate community (300+ members): tech communities, interest clubs, events, a small R&D lab, a knowledge base, and a dedicated AI track
- Licenses for AI tools: GitHub Copilot, Cursor, and others
- Private health insurance (medical and dental care services included)
- 25 paid working days/year for work-life balance
- Support for the significant events in your life
- Access to the Multisport program for a healthy lifestyle
- Referral bonuses for bringing in new talent
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