Find Backend engineer (based in dublin or madrid) Jobs in Dublin 24, D

Senior Backend Software Engineer
Sleep.ai —Dublin, County Dublin
- €85,000–€100,000 a year
- Full-time
- Azure
- DevOps
- Master's degree
Quick apply
Backend Engineer (based in Dublin OR Madrid)
Fresco —DUBLIN 8, County Dublin
- Full-time
- Hybrid work
- English
- AWS
- Bachelor's degree
Quick apply
Senior Software Engineer, Windows/Desktop Applications - Dublin, Ireland
Speechify —Dublin, County Dublin
- €30,000–€120,000 a year
- Remote
- Doctoral degree
- Windows
- C++
14d
Full Stack Software Engineer
Enel —Dublin, County Dublin
- €80,000–€100,000 a year
- Full-time
- Computer Science
- English
- AWS
- Annual leave
- Employee assistance program
Founding Full-Stack (Flutter and Java) Engineer
Grand Intelligence —Dublin, County Dublin
- Full-time
- Hybrid work
- Java
- AWS
- AI
Quick apply
Founding Backend Engineer (Java)
Grand Intelligence —Dublin, County Dublin
- Full-time
- Hybrid work
- Java
- AWS
- AI
Quick apply
Frontend Software Engineer
Smartbox Group —Dublin, County Dublin
- Full-time
- Hybrid work
- JavaScript
- HTML
Quick apply
Full Stack Engineer – Dublin | Hybrid | Full-Time
Hadfield Green —DUBLIN 2, County Dublin
- Full-time
- Hybrid work
- Oracle
- Java
- AWS
Software Engineer - Frontend/Full Stack
PlayStation Global —Dublin, County Dublin
- €69,500–€104,300 a year
- Hybrid work
- Computer Science
- Java
- AWS
- Wellness program
- Annual leave
Software Engineer (December 2025 and May 2026 Grads)
DraftKings —Dublin, County Dublin
- Computer Science
- Bachelor's degree
Software Development Engineer II
CarGurus —Dublin, County Dublin
- €56,000–€67,000 a year
- Java
- AWS
- JavaScript
Staff Backend Engineer - Accounting - 100% Remote - EMEA
Hostaway —Dublin, County Dublin
- Full-time
- Remote
- System design
- AWS
- Bachelor's degree
- Annual leave
- Work from home
Quick apply
Mid-Level Backend Software Engineer
Teckro Limited —Dublin, County Dublin
- Full-time
- Hybrid work
- Computer Science
- System design
- Hotel
- Gym membership
- Life insurance
Quick apply
Full Stack Developer
RWS Group —Dublin, County Dublin
- Full-time
- Microsoft Excel
- DevOps
- SQL
Mid-Level Full Stack Java Engineer
Solance —Dublin, County Dublin
- Full-time
- Hybrid work
- Java
- AWS
- Agile
Quick apply
- Android Developer
ErnieApp —DUBLIN 2, County Dublin
- Full-time
- Remote
- JavaScript
2026 Fall Co-Ops - Software Development - Demonware (Dublin)
Activision —Dublin, County Dublin
- Java
- SQL
- C++
.Net Senior Software Engineer
U.S. Bank National Association —Dublin, County Dublin
- €74,460–€87,600 a year
- Full-time
- Computer Science
- System design
- Analysis skills
Information Security Technical Support
Tate Europe —Dublin, County Dublin
- Full-time
- Azure
- Customer service
- Windows
Quick apply
Staff Software Engineer
Sirius XM —Dublin, County Dublin
- Full-time
- Remote
- System design
- AWS
- Bachelor's degree

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Senior Backend Software Engineer

Sleep.ai -
Dublin, County Dublin

Quick apply

Job details

Full-time
€85,000–€100,000 a year

Qualifications

Azure
Law
React
Relational databases
DevOps
C#
NoSQL
Git
.NET
Master's degree
OOP
Redis
Organisational skills
Entity Framework

Full job description

Senior Backend Software Engineer

Position: Senior Backend Software Engineer

Reports to: Backend Lead

Location: Dublin, Ireland (no relocation), hybrid 2 days in office

Annual Salary Range: €85,000 – €100,000

Make Your Mark:

At Sleepscore Labs/Sleep.ai, we don’t just study sleep - we transform it. With access to the world's most comprehensive sleep dataset, we’re unlocking groundbreaking insights that drive innovation in health and wellness. Our mission? To harness the power of data and machine learning to improve how the world sleeps.

SleepScore Labs/Sleep.ai is looking for a Senior Backend Software Engineer (C#) with strong technical and engineering skills with proficiency in Azure. As a technical contributor, you will be part of SleepScore Labs’ backend team and work closely with the rest of the team, mobile developers, and the QA team. If you are passionate about your work, thrive in a fast-paced, collaborative environment, and have proven experience building platforms, then you are the kind of engineer we are looking for.

This role offers a wide variety of technical challenges to solve and explore related to innovative concepts for the sleep industry.

You’ll Get to:

You will design, develop, and maintain scalable C# / .NET backend applications, services, automated tests, and tools as a member of the engineering team and coordinate as needed with all members of SleepScore Labs’ departments.
Develop the backend platform, services, and platform components.
Collaborate closely with mobile, front-end, QA, and data science teams to ship high-quality, high-performance features end-to-end.
Design, build, and maintain efficient, reusable, and reliable C# code, ensuring high-performing and high-quality services.
Leverage AI tools and LLM-based workflows thoughtfully (e.g., Cursor, Claude, OpenAI) to accelerate development and improve code quality while validating outputs and ensuring correctness, privacy, and security.

What You’ll Bring:

5+ years of .NET development experience, including shipping and operating production services.

Proficiency with Azure cloud-based development.
Strong knowledge of SOA, object-oriented programming, design patterns, SOLID principles, multi-threaded application development and C#’s ecosystems.
Very strong object-oriented design skills with proven track record of well-engineered design.
Proven skill writing clean, readable, reusable C# libraries and familiarity with a wide variety of design and architectural patterns.
Fluent in a broad swath of C#, including memory storage, Generics with Type Constraints, Custom Events, Custom Attributes, Generic Delegates, Multi-threading, Reflection, Extension Methods, lambda expressions, fluent with the primary file system operation classes, understands the garbage collection architecture and techniques for monitoring.
Demonstrated experience building and supporting hosted client server applications, including strong skills with relational databases (Entity Framework, LINQ) and source control (Git preferred).
Proven engineering discipline with unit testing, effective collaboration with QA, and strong estimation and organizational skills to deliver reliably.
Commitment to collaborative problem solving, thoughtful design, and delivering quality products, with the ability to partner effectively across business and technology teams, ramp quickly on complex architectures, contribute at both the architectural and coding levels, and mentor peers and junior team members.

We’re Even More Excited If You Have:

Experience building web applications or internal tools with React
Experience with Functions-as-a-Service (FaaS) – especially Azure Functions
Experience with automated deployment tools like Azure DevOps Pipelines
Experience using NoSQL databases
Knowledge of caching solutions (e.g. Redis)

Thrive at SleepScore Labs/Sleep.ai Because You Are Joining:

A technology-based company with a strong mission and vision for the future.
We understand that bringing new ideas and innovative technology is mission critical. At SleepScore, we encourage our team to learn something new and expand their creativity that will accelerate their careers.
A culture that is kind, open and accepting. It’s a place where people can embrace what makes them unique and the mix of cultural backgrounds and varying interests cultivates diverse thought and perspectives.
We offer competitive rewards and compensation and health and wellness benefits programs that are comprehensive and meet the needs of our team.
SleepScore recognizes that the ways we work and the workplace itself has shifted. We innovate in a workplace that optimizes a combination of virtual and in-person interactions to maximize collaboration and nurture our culture. Candidates who live in a reasonable commute to our office will work in the office at least 2 days a week.

About Sleepscore Labs/Sleep.ai:

Sleep.ai is a world-renowned leader in sleep science, research, and solutions, dedicated to helping people sleep better so they can live better. Through strategic partnerships with companies committed to providing the best for their customers, we deliver superior sleep solutions that are backed by unrivaled science and data.

Sleep.ai developed the most advanced sleep technology platform and leverages actionable and personalized sleep insights derived from 850M+ hours of sleep data to empower billions of people to achieve their best sleep, benefiting their physical, mental, and emotional well-being. Learn more at www.sleep.ai.

Quick apply

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backend engineer (based in dublin or madrid) jobs in dublin 24, d

Senior Backend Software Engineer

Backend Engineer (based in Dublin OR Madrid)

Senior Software Engineer, Windows/Desktop Applications - Dublin, Ireland

Full Stack Software Engineer

Founding Full-Stack (Flutter and Java) Engineer

Founding Backend Engineer (Java)

Frontend Software Engineer

Full Stack Engineer – Dublin | Hybrid | Full-Time

Software Engineer - Frontend/Full Stack

Software Engineer (December 2025 and May 2026 Grads)

Software Development Engineer II

Staff Backend Engineer - Accounting - 100% Remote - EMEA

Mid-Level Backend Software Engineer

Full Stack Developer

Mid-Level Full Stack Java Engineer

- Android Developer

2026 Fall Co-Ops - Software Development - Demonware (Dublin)

.Net Senior Software Engineer

Information Security Technical Support

Staff Software Engineer

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