We are looking for a Senior Application Architect to support a technical discovery engagement, mapping dependencies across a large, heterogeneous, and partly undocumented application estate for a UK enterprise client.
Project: A ten-week discovery and technical assessment engagement focused on application and infrastructure dependency mapping — spanning protocols, service accounts, certificates, and a multi-version .NET estate — ahead of a remediation roadmap.
Responsibilities: * Assess dependencies across protocols, runtimes, service accounts, and certificates * Evaluate deprecated configuration dependencies (TLS 1.0/1.1, SMB, NTLMv1, 3DES) currently gating thousands of findings * Build a service account map to enable safe password policy enforcement without causing outages * Support certificate consumer mapping to identify pinned and mutual-TLS integrations ahead of certificate re-issuance * Assess a multi-version .NET estate with no clear documented requirements * Distinguish genuinely active systems from dormant ones, including decommissioning as a valid remediation route * Support shadow IT discovery across the estate
Requirements: * 7+ years of experience in application architecture assessment across heterogeneous enterprise estates * Proven ability to establish dependency positions in the absence of documentation * Experience distinguishing active from dormant systems and recommending decommissioning where appropriate * Experience with shadow IT discovery * Working knowledge of Windows Server and Red Hat Enterprise Linux, sufficient to reason about application-to-platform coupling * Strong analytical mindset, able to work confidently with incomplete or conflicting source data * Upper-Intermediate English or higher
What We Offer: * Transparent strategy and thoughtful management that keep everyone aligned * Space for personal growth and career development without limits * A culture of continuous learning: internal courses, workshops, and English classes twice a week * Skill up events where we share experience and stay on top of trends * Competitive perks: flexible schedule, a strong compensation package, support for professional certifications, and generous vacation policy * Team spirit that thrives through regular events, gatherings, and celebrations
