Senior SDE, AWS DMS: Flexible Hours & Architecture

Amazon Web Services (AWS); Dublin; On-site; EUR 120,000 - 180,000; Full time

Job summary

Amazon Development Centre Ireland Limited is seeking a Senior SDE for the DMS team to drive architecture, quality, and delivery of large-scale database migration services. You will stabilize the current engine in C/C++ and contribute to a next-generation service in Java, while guiding design reviews and security remediations.

You will mentor engineers, own end-to-end outcomes from design through production, and influence release quality within a global production fleet.

Qualifications

• Experience programming with at least one modern language such as Java, C++, or C# including object-oriented design.
• Experience leading the architecture and design (architecture, design patterns, reliability and scaling) of new and current systems, or experience in development in the last 3 years.
• Experience as a mentor, tech lead or leading an engineering team, or experience leading engineering teams as a mentor or tech lead.
• Experience building production software applications or understanding software development, distributed systems, and systems architecture.
• Experience debugging, profiling, and implementing best software engineering practices in large-scale systems, or experience with general troubleshooting/debugging of hardware.

Responsibilities

• Lead the design and implementation of complex features and improvements in the DMS replication engine, spanning C/C++ (current engine) and Java (next-generation service).
• Drive technical strategy for one or more database endpoint areas (PostgreSQL, Oracle, SQL Server, MySQL), making architecture decisions that improve reliability, performance, and security for the entire customer fleet.
• Own and reduce systemic quality issues - task crashes, memory corruption, data validation failures - through root cause analysis, systematic fixes, and improved testing infrastructure.
• Design and deliver security remediations within SLA, including vulnerability fixes, credential exposure prevention, and secure dependency management.
• Lead the design and expansion of automated test coverage, including combinatorial testing that exercises millions of parameter combinations across heterogeneous migration paths.
• Mentor SDE1s and SDE2s through code reviews, design guidance, and pairing on complex debugging. Raise the technical bar across the team.
• Drive adoption of AI-powered engineering practices - autonomous bug detection, AI-assisted debugging, automated test generation - to multiply team effectiveness with constrained headcount.
• Collaborate with Principal Engineers on long-term architecture decisions, deprecation strategy, and migration service evolution.
• Participate in on-call rotation and lead incident response for complex production issues affecting customer migrations.
• Influence release quality and cadence - contributing to a predictable deployment cycle serving a large production fleet.

Skills

Java

C++

C#

AddressSanitizer

ThreadSanitizer

Helgrind

Education

Master's degree in computer science or equivalent

Tools

CDC

pgoutput

Job description

Amazon Development Centre Ireland Limited is seeking a Senior SDE for the DMS team to drive architecture, quality, and delivery of large-scale database migration services. You will stabilize the current engine in C/C++ and contribute to a next-generation service in Java, while guiding design reviews and security remediations.

You will mentor engineers, own end-to-end outcomes from design through production, and influence release quality within a global production fleet.