Keystone Solutions

4 Jobs

45 Employees

About the Company

At Keystone Solutions, we specialize in bridging technology and talent to deliver a seamless IT experience.

With a focus on efficiency and innovation, we streamline your IT services, ensuring that you can focus on what you do best while we handle the complexities of your IT ecosystem. From strategic planning through to execution, we are your partners in creating a harmonious technological environment that propels your business forward.

Our Services:

- Hyperautomation: Embrace efficiency with Keystone Solutions' hyperautomation. Integrating Al, ML, and RPA, we automate and optimize your business processes, elevating operational excellence and decision-making.

- IT Consulting: Our IT consultancy at Keystone Solutions navigates you through the complexities of technology. We provide strategic insights, from system architecture to digital transformation, fueling your business growth.

- Software Development: Keystone Solutions excels in crafting custom software tailored to your needs. From innovative apps to system integrations, we transform your ideas into dynamic digital solutions.

- IT Security: Secure your digital landscape with Keystone Solutions. We offer comprehensive cybersecurity measures, from risk assessments to incident response, safeguarding your data and operations.

Listed Jobs

Company Name: Keystone Solutions
Job Title: .NET Developer
Job Description: **Job Title:** Senior .NET Developer **Role Summary:** Consultant responsible for delivering high‑quality software components within a senior development team for a leading Belgian energy company. The role supports the digital transformation of the energy sector, working on a nomination project that leverages modern .NET technologies and micro‑service principles. **Expectations:** - Available to start by mid‑October. - Follow client coding standards and ensure robust, maintainable deliverables. - Communicate effectively with client staff and other consultants; take ownership of assigned tasks. - Language proficiency: fluent English; French or Flemish with passive understanding of the other language. - Ability to work on‑site in Brussels with up to three remote days per week; travel to Germany as required (expenses covered). **Key Responsibilities:** - Design, develop, test, and maintain applications using .NET Framework 4.x, .NET 8, Entity Framework Core. - Build UI components with WPF and/or Blazor. - Implement data access and persistence with SQL Server and MongoDB. - Integrate messaging via RabbitMQ. - Contribute to micro‑services architecture where applicable. - Conduct code reviews and ensure compliance with client quality standards. - Collaborate with cross‑functional teams to resolve technical issues and deliver project milestones. **Required Skills:** - Strong hands‑on experience with .NET Framework (4.x) and .NET 8. - Proficient in Entity Framework Core, WPF, Blazor. - Solid SQL Server and MongoDB knowledge. - Experience with RabbitMQ and messaging patterns. - Understanding of micro‑services concepts (preferred). - Good communication and teamwork abilities; accountable work ethic. - Language: English (fluent); French or Flemish (passive comprehension of the other). **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Software Engineering, or a related field (or equivalent practical experience). - Optional: Microsoft Certified: .NET Developer or equivalent professional certification.

Brussels, Belgium

On site

04-10-2025

Company Name: Keystone Solutions
Job Title: Technical Lead .NET
Job Description: Job title: Technical Lead .NET Role Summary: Lead the technical direction and delivery of a specialized .NET application team within a client‑facing consultancy engagement. Manage architecture, quality, performance, and security while actively contributing to development. Mentor developers, drive process improvements, and align solutions with business goals. Expactations: * Deliver high‑quality, scalable .NET solutions on schedule. * Provide clear technical guidance, code reviews, and mentorship to a diverse team. * Maintain documentation, configuration, and release processes. * Champion best practices for performance, security, and maintainability. Key Responsibilities: * Drive technical strategy, architecture, and coding standards for .NET applications. * Mentor and coach development staff, fostering technical excellence. * Write and review code, participate in feature development, bug fixes, and refactoring. * Produce detailed design documents, release notes, and infrastructure change requests. * Manage change control to ensure system stability and performance. * Design scalable, reliable, and secure systems respecting architectural guidelines. * Analyze requirements with business analysts and translate them into robust solutions. * Perform code reviews, enforce quality assurance procedures, and maintain code quality. * Optimize application performance, memory usage, and database queries. * Implement contemporary security practices (authentication, authorization, data protection). * Evaluate, pilot, and integrate emerging technologies to enhance application capabilities. * Lead troubleshooting efforts for complex technical issues and provide timely resolution. * Collaborate with architects and enterprise teams to align designs with broader strategy. Required Skills: * Strong proficiency in .NET Core / .NET 5+ (C#, ASP.NET Core, Entity Framework). * Experience with SQL Server and NoSQL databases, including query optimization. * Solid understanding of web services (REST, gRPC), messaging, and micro‑service patterns. * Familiarity with cloud platforms (Azure/AWS) and DevOps pipelines. * Expertise in performance tuning, profiling, and scalability techniques. * Knowledge of secure coding standards and threat mitigation. * Proven mentoring and leadership capabilities in distributed teams. * Excellent problem‑solving, decision‑making, and communication skills. Required Education & Certifications: * Bachelor’s degree in Computer Science, Software Engineering, or a related field (or equivalent experience). * Minimum 5 years of professional .NET development experience, including architectural responsibilities. * Preferred certifications: Microsoft Certified: Azure Developer Associate, Microsoft Certified: Azure Solutions Architect Expert, or Microsoft Certified Application Developer (MCSD).

Company Name: Keystone Solutions
Job Title: Medior Developer .Net
Job Description: **Job Title:** Medior Developer .Net **Role Summary:** As a Medior .Net Developer, you will deliver technical solutions using Microsoft technologies, collaborating with architecture teams to integrate system components and implement customizations. **Expectations:** Demonstrate intermediate expertise in .Net development and component integration while following consultancy frameworks to meet project goals. **Key Responsibilities:** - Develop, document, and deploy software solutions using .Net technologies. - Integrate system components and customize solutions in collaboration with architecture teams. - Analyze technical requirements and propose logical, structured solutions. - Apply problem-solving skills to evaluate data, design alternatives, and implement effective outcomes. - Support solution testing and ensure alignment with client and consultancy standards. **Required Skills:** - Proficient in .Net development (C#, ASP.NET, etc.). - Strong understanding of component integration and system architecture. - Analytical thinking and structured problem-solving capabilities. - Effective communication for cross-team collaboration. - Experience with software customization and documentation. **Required Education & Certifications:** - Bachelor’s degree in Computer Science, IT, or equivalent technical field. - Microsoft Certified: Azure Developer Associate or comparable .Net certification preferred.

Brussels, Belgium

On site

10-10-2025

Company Name: Keystone Solutions
Job Title: Lead Engineer Full Stack
Job Description: **Job Title:** Lead Engineer Full Stack **Role Summary:** Senior full‑stack engineer responsible for designing, developing, and maintaining advanced Automatic Number Plate Recognition (ANPR) software solutions. Leads a cross‑functional team, mentors developers, and ensures high‑quality, secure, and scalable code in a consultancy environment. **Expectations:** - Deliver end‑to‑end software components with minimal supervision. - Maintain code quality through refactoring, TDD, and rigorous QA. - Communicate effectively with product managers, designers, QA, and external vendors. - Champion architectural best practices and secure coding standards. - Operate primarily on-site with flexible telework options. **Key Responsibilities:** - Design and implement front‑end and back‑end functionalities using JavaScript (Vue.js, Node.js) and PHP (Laravel, Slim). - Translate functional specifications into robust code. - Build RESTful APIs and contribute to API‑first architecture. - Conduct code reviews, pair programming, and provide constructive feedback. - Integrate with external components, AI/ML services, and hardware modules. - Employ micro‑frameworks, message brokers (Kafka, RabbitMQ), and search stacks (OpenSearch, ELK). - Automate testing, CI/CD pipelines, and documentation generation. - Ensure security compliance using JWT, OAuth2, and other authentication mechanisms. **Required Skills:** - 10+ years in full‑stack development (JavaScript, PHP, Python, Ruby, Java, Scala). - Strong experience with Laravel, Slim, Symfony, Lumen, or Silex. - Vue.js expertise and modern front‑end tooling (Vue CLI, Vite, Webpack). - PostgreSQL/PGSQL; familiarity with MySQL, MongoDB, OpenSearch. - Version control (Git, GitLab, GitHub). - Linux administration and shell scripting. - Test‑driven development, SonarQube, JIRA, Confluence. - API design (REST, GraphQL), OAuth2, JWT. - Messaging/queueing (Kafka, RabbitMQ). - Agile and traditional methodologies. - Fluent in Dutch or French; strong passive English; Visual Basic 6.0 knowledge is a plus. **Required Education & Certifications:** - Bachelor’s degree in Engineering, IT, Computer Science, or related field. - Relevant certifications in PHP, JavaScript frameworks, or cloud platforms are advantageous but not mandatory.