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Software Development Engineer, AWS DMS

Amazon Development Centre Ireland Limited -
Dublin, County Dublin

Apply Now

Job details

Full-time

Qualifications

Oracle
Computer Science
DB2
Relational databases
Microsoft SQL Server
SQL
AWS
C++
Bachelor's degree
PostgreSQL
Redshift
Debugging
MySQL

Full job description

DESCRIPTION

AWS Database Migration Service (DMS) has migrated more than 1.5 million database workloads to AWS, helping enterprises move from commercial databases (Oracle, SQL Server, DB2) to open-source Amazon Aurora and RDS (PostgreSQL, MySQL). The service is used by customers across the world to migrate their most important data from their on-premises datacenters to Amazon services. Our customers depend on our services' reliability and security to handle their business data. More information on AWS DMS is available at http://aws.amazon.com/dms.

As an SDE2 on the DMS team, you will work directly on the core C/C++ replication engine that powers heterogeneous database migrations for tens of thousands of customers running large-scale production fleets. You'll focus on the PostgreSQL, Oracle, and SQL Server endpoints - the highest-volume migration paths driving Aurora and RDS growth. Your work will directly impact migration reliability, security compliance, and the experience of customers migrating their most critical production databases to AWS.

Key job responsibilities
Key job responsibilities

Design, implement, and ship fixes and features in the C/C++ replication engine for PostgreSQL, Oracle, and SQL Server source/target endpoints.
Diagnose and resolve complex production issues - task crashes, memory corruption, CDC failures, data validation errors - using core dump analysis, memory profilers (AddressSanitizer, Valgrind), and systematic debugging.
Develop and expand automated test coverage using the Scalable Test Platform (STP), including combinatorial testing scenarios that exercise millions of parameter combinations across migration paths.
Deliver security fixes within SLA and contribute to security compliance initiatives including vulnerability remediation, credential exposure prevention, and secure supply chain builds.
Participate in code reviews, design discussions, and release management for our deployment cadence serving hundreds of thousands of production instances.
Collaborate with Database Engineers to reproduce and fix customer-reported issues, translating ambiguous production failures into root causes and verified fixes.
Leverage and contribute to AI-powered engineering tools (Meshclaw autonomous bug-fixing, Kiro-based on-call agent) to accelerate defect detection and resolution.
Participate in on-call rotation, triaging production incidents and driving them to resolution.

A day in the life
You might start the day investigating a crash signature affecting thousands of customer tasks - analyzing the core dump, identifying a use-after-free in a CDC thread shutdown path, and writing a fix with a coordinated shutdown mechanism. After code review, you write an automated test that reproduces the race condition under concurrent load. In the afternoon, you're working on a security fix, ensuring the remediation doesn't regress existing customer behavior. You end the day reviewing a CR from a teammate fixing a PostgreSQL logical decoding edge case, and updating the crash classifier with a new signature your fix will eliminate.

About the team
Our team is dedicated to supporting new members. We have a broad mix of experience levels and tenures, and we're building an environment that celebrates knowledge-sharing and mentorship. Our senior members enjoy one-on-one mentoring and thorough, but kind, code reviews. We care about your career growth and strive to assign projects that help our team members develop your engineering expertise so you feel empowered to take on more complex tasks in the future.

The DMS engine team operates across Dublin, Poland, and the US. We're a team that takes ownership of a complex system and makes it better every release -reducing crashes, closing security gaps, and making migrations reliable enough that customers don't need our help to succeed. We leverage AI extensively: from autonomous bug-fixing to an on-call agent that cuts troubleshooting time dramatically.

BASIC QUALIFICATIONS

Experience programming with at least one software programming language, or experience in embedded development in C/C++
Experience leading the architecture and design (architecture, design patterns, reliability and scaling) of new and current systems
Experience in debugging, profiling, and implementing software engineering best practices in large-scale systems, or experience in embedded development in C/C++
Experience in relational database technology (such as Redshift, Oracle, MySQL or MS SQL)

PREFERRED QUALIFICATIONS

Bachelor's degree in Computer Science, Engineering, a related field, or equivalent experience
Experience with database replication technologies: CDC (Change Data Capture), logical replication, log-based capture (LogMiner, fn_dblog, pgoutput)
Experience with security vulnerability remediation in production systems
Experience building automated test frameworks or improving test coverage for complex systems
Experience with memory safety tooling (AddressSanitizer, ThreadSanitizer, Helgrind)
Experience operating services at scale (multi-region deployments, large customer fleets)
Experience with release management and deployment pipelines for large fleets

Amazon is an equal opportunities employer. We believe passionately that employing a diverse workforce is central to our success. We make recruiting decisions based on your experience and skills. We value your passion to discover, invent, simplify and build. Protecting your privacy and the security of your data is a longstanding top priority for Amazon. Please consult our Privacy Notice (https://www.amazon.jobs/en/privacy_page) to know more about how we collect, use and transfer the personal data of our candidates.

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner.

Apply Now

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