Find Junior software engineer Jobs in Dublin 12, D

Kernel / Hypervisor Engineer, Firecracker
Amazon Development Centre Ireland Limited —Dublin, County Dublin
- Full-time
- Computer Science
- SQL
- AWS
Field Service Engineer 3
Lam Research —Dublin, County Dublin
- Overtime
- Maintenance
- English
- Microsoft Office
Product Designer (Confirmed/Senior) - Remote Europe
Pennylane SAS —Dublin, County Dublin
- Full-time
- Remote
- English
- Mentoring
- Communication skills
Quick apply
Senior Data Engineer
Elwood Roberts —Dublin, County Dublin
- €350–€410 a day
- Full-time
- English
- SQL
- AWS
Quick apply
SoC Validation/FPGA Engineer (Senior Engineer II)
Microchip Technology —Dublin, County Dublin
- Full-time
- C++
- Bachelor's degree
- AI
Senior Mechanical Design Engineer
Manna —Dublin, County Dublin
- €70,000–€90,000 a year
- Full-time
- Hybrid work
- CAD
- Assembly
- Bachelor's degree
Quick apply
Sr. Global MES Engineer
AbbVie —Dublin, County Dublin
- €51,000–€88,500 a year
- Full-time
- Hybrid work
- Analysis skills
- Bachelor's degree
- Manufacturing
10d
Senior Identity & Access Management (IAM) Engineer
Workday —Dublin, County Dublin
- €84,000–€126,000 a year
- Full-time
- Azure
- Computer Science
- Engineering
Sr Machine Learning Engineer
paypal —Dublin, County Dublin
- Full-time
- Azure
- Engineering
- Java
- Annual leave
Senior Control & Protection Design Engineer
TLI Group Ltd —Dublin, County Dublin
- AutoCAD
- System design
- Microsoft Office
- Annual leave
- Employee assistance program
Mechanical Engineer
Mercury Engineering —Dublin, County Dublin
- Engineering
- Bachelor's degree
- Continuous improvement
Civil Engineer
Mott MacDonald —Dublin, County Dublin
- Full-time
- Hybrid work
- Engineering
- Project management
- Communication skills
- Annual leave
- Life insurance
Civil Engineer
DBFL Consulting Engineers —Dublin, County Dublin
- Full-time
- Hybrid work
- Organisational skills
- Civil Engineering
- Communication skills
- Annual leave
Quick apply
Technical Lead - Commerce Hub
Fiserv —Dublin, County Dublin
- Full-time
- DevOps
- Java
- AWS
Secondary Project Engineer
Hitachi Rail —Dublin, County Dublin
- Full-time
- Project management
- IT
- Electrical Engineering
MEICA Project Engineer (Leixlip)
Glanua —Leixlip, County Kildare
- Full-time
- Microsoft Powerpoint
- Microsoft Word
- Microsoft Excel
- Annual leave
- Employee assistance program
Quick apply
Speculative Energy Candidates
Sisk —Dublin, County Dublin
- Full-time
- In-person
- Annual leave
Senior Estimator
IPS-Integrated Project Services —DUBLIN 12, County Dublin
- Full-time
- Microsoft Excel
- Engineering
- Analysis skills
Geotechnical Engineer
SLR Consulting —Dublin, County Dublin
- Full-time
- Hybrid work
- CAD
- Project management
- Bachelor's degree
- Annual leave
- Employee assistance program
Associate Director - Landscape Architecture
AECOM —Dublin, County Dublin
- Full-time
- Hybrid work
- AutoCAD
- English
- Microsoft Office

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Kernel / Hypervisor Engineer, Firecracker

Amazon Development Centre Ireland Limited -
Dublin, County Dublin

Apply Now

Job details

Full-time

Qualifications

Rust (programming language)
Computer Science
SQL
AWS
C++
Bachelor's degree
Software development
GitHub
Linux
ARM

Full job description

DESCRIPTION

Join us at AWS Lambda in Dublin, Ireland, building Firecracker - the open-source virtual machine monitor (VMM) purpose-built for serverless and container workloads. Firecracker runs at global scale as the foundation of AWS Lambda, Aurora D-SQL, and other AWS services, and is integrated by 10+ external teams as part of their platforms.

We are looking for a Kernel / Hypervisor Engineer who is passionate about low-level systems programming and wants to push the boundaries of virtualization technology. In this role, you will work at the intersection of hardware and software - designing and implementing hypervisor components, device emulation, memory management, and guest-host interfaces in Rust on Linux/KVM. Your work will directly impact the security, performance, and efficiency of compute infrastructure serving millions of customers.

Key job responsibilities

Design, develop, and maintain hypervisor and VMM components in Rust, including virtual device emulation, memory management, and vCPU scheduling.
Optimize boot latency, memory footprint, and I/O throughput for ephemeral microVM workloads at global scale.
Harden the security boundary between guest and host, contributing to threat modeling and implementing isolation mechanisms.
Contribute to the upstream Linux kernel where needed to support Firecracker's roadmap.
Mentor and coach junior engineers, drive code quality through reviews, and champion best practices.
Participate in on-call rotation to ensure operational excellence of Firecracker-based services.

A day in the life
Your day might start by reviewing pull requests on the Firecracker open-source repository, providing feedback to community contributors or teammates. You then dive into implementing a new virtio device or optimizing a hot path in the VMM, writing Rust and reasoning about memory safety and performance trade-offs. After lunch, you collaborate with an internal AWS service team that consumes Firecracker to debug a subtle guest-host interaction - perhaps a vCPU scheduling anomaly or an unexpected memory mapping behavior. You wrap up by writing a design doc for an upcoming kernel interface change, getting input from colleagues across the team. Throughout the day, you balance deep technical work with collaboration, working in the open on GitHub alongside a global community.

About the team
We are the Compute Capsule team within AWS Lambda, based in Dublin, Ireland. We own Firecracker end-to-end - from its open-source development on GitHub to its deployment at scale inside AWS. We focus on serverless and container virtualization, trusted compute, and server fleet tooling. We value work-life balance, respect each other's time, and invest in growing every team member through mentorship, challenging assignments, and training. We believe diverse perspectives make us stronger and actively seek team players who thrive in collaborative, inclusive environments.

BASIC QUALIFICATIONS

Experience (non-internship) in professional software development
Hands-on experience with low-level systems programming (e.g., kernel, hypervisor, firmware, or embedded systems)
Proficiency in at least one systems language: C, C++, or Rust
Solid understanding of Linux internals (syscalls, memory management, process Experience with virtualization technologies (KVM, Xen, QEMU, or similar)

PREFERRED QUALIFICATIONS

Experience with Rust in production systems
Contributions to open-source projects (kernel, hypervisor, or systems tooling)
Experience with device emulation or virtio
Familiarity with hardware-assisted virtualization (Intel VT-x, AMD-V, or Arm virtualization extensions)
Knowledge of performance profiling and optimization at the systems level (perf, ftrace, eBPF)
Bachelor's degree or higher in Computer Science, Engineering, or a related field.

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

Refine Your Search

junior software engineer jobs in dublin 12, d

Kernel / Hypervisor Engineer, Firecracker

Field Service Engineer 3

Product Designer (Confirmed/Senior) - Remote Europe

Senior Data Engineer

SoC Validation/FPGA Engineer (Senior Engineer II)

Senior Mechanical Design Engineer

Sr. Global MES Engineer

Senior Identity & Access Management (IAM) Engineer

Sr Machine Learning Engineer

Senior Control & Protection Design Engineer

Mechanical Engineer

Civil Engineer

Civil Engineer

Technical Lead - Commerce Hub

Secondary Project Engineer

MEICA Project Engineer (Leixlip)

Speculative Energy Candidates

Senior Estimator

Geotechnical Engineer

Associate Director - Landscape Architecture

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