About the role

Senior Sustaining Engineer maintaining stability and reliability of fintech platform. Collaborating globally to resolve incidents and enhance system performance.

Responsibilities

Act as a primary responder in a 24x7 on-call rotation for high-priority incidents, ensuring fast acknowledgment (MTTA targets) and resolution to minimize customer impact in our event-driven fintech platform
Conduct root-cause analysis (RCA) for complex issues, collaborating closely with development teams to implement robust solutions and deliver RCAs within 5 business days for Sev1/Sev2 incidents.
Lead the development and deployment of small, customer-facing features and improvements, ensuring alignment with business needs and system requirements while adhering to change success rates ≥99%.
Work with mid- and junior-level engineers, providing guidance in incident response, troubleshooting best practices, and coding standards within a global rota, including handovers and knowledge sharing via tools like Rootly.
Take ownership of software maintainability initiatives, identifying and implementing optimizations, and enhancing system performance to achieve availability ≥99.99% (four nines).
Participate in regular post-incident reviews (blameless retros), documenting lessons learned and suggesting improvements to incident response processes and runbooks for our technology stack.
Collaborate with the infrastructure team to monitor system health and proactively identify areas for improvement in stability and efficiency using tools like Datadog, Rootly, and CloudWatch/AppDynamics.

Bachelor's degree in computer science, Engineering, or a related field.
Minimum of 5+ years of experience in sustaining engineering, DevOps, or software engineering with a focus on incident response and system reliability in fintech or regulated environments.
Advanced troubleshooting skills and experience with Golang (preferred), Java, or similar languages, plus familiarity with event-driven architectures (e.g., NATS/JetStream, Redis clustering).
Strong familiarity with monitoring and incident response tools (e.g., Datadog, Rootly) and experience implementing improvements in similar systems to meet SLAs like MTTA/MTTR.
Proven ability to conduct in-depth root-cause analysis and implement long-term fixes in compliance-aware settings (e.g., GDPR/FCA-aligned).
Experience mentoring or guiding mid-level engineers, with a focus on knowledge sharing and process improvements in geo-distributed teams.
Awareness of ITILv4 principles (e.g., incident/change management) and tools like Rootly for unified workflows.
Strong communication skills and the ability to work collaboratively with both technical and non-technical teams across time zones.