Senior Software Engineer – System Modernization

🕒 July 10

🇬🇧 United Kingdom – Remote

⏰ Full Time

🟠 Senior

⚙️ Systems Engineer

👻 Ghost score 13%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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One Identity

WebsiteLinkedInAll Job Openings

501 - 1000 employees

🔒 Cybersecurity

☁️ SaaS

🏢 Enterprise

💰 $3M Venture Round on 2004-07

Cybersecurity • SaaS • Enterprise

One Identity is a company that specializes in identity and access management solutions, focusing on protecting digital identities and simplifying user access across organizations. They offer a comprehensive suite of products designed to secure privileged access, govern user identities, and streamline compliance with regulations through automation. Their platform integrates AI-driven insights to enhance security and operational efficiency, supporting both on-premises and cloud environments.

📋 Description

• Execute and evolve an incremental modernization strategy, safely transitioning legacy systems into well-bounded services while maintaining reliability and continuity • Decompose monolithic systems incrementally using patterns such as strangler fig • Manage coexistence between legacy and modern systems during transition • Design clear service boundaries, contracts, and data ownership models • Ensure backward compatibility and safe evolution of APIs and data during migration • Improve performance, scalability, and maintainability as part of modernization efforts • Identify and prioritize high-impact areas for migration based on risk and value

🎯 Requirements

• 4+ years of professional software engineering experience with ownership of production systems and operational improvements • Strong backend development experience (Ruby, Node.js, or similar) • Solid understanding of REST APIs, service contracts, distributed systems, and common software design patterns • Experience working across backend systems, APIs, and production environments • Hands-on experience with automated testing across unit, integration, and API layers • Experience building and operating cloud-native services in AWS • Familiarity with CI/CD practices and modern deployment workflows • Willingness to participate in a 24/7 on-call rotation and support production issue resolution • Experience with or strong interest in AI-assisted development tools (e.g. GitHub Copilot, ChatGPT, Cursor)

🏖️ Benefits

• Strong commitment to modern engineering practices • AI-augmented development opportunities • Career development and opportunities for advancement • Collaborative work culture