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Top Backend Jobs in Belfast

10 Days Ago
Belfast, Northern Ireland
Remote
10,000 Employees
Senior level
10,000 Employees
Senior level
Cloud • Information Technology • Sales • Security • Cybersecurity
As a Senior Backend Software Engineer at CrowdStrike, you will design and build scalable, resilient distributed services using event-driven architecture. Engage with product managers and teams, troubleshoot production issues, and work with advanced technologies for a low-code security application platform. You are expected to leverage your extensive experience in backend development and distributed systems to contribute to the team.
10 Days Ago
Belfast, Northern Ireland
Remote
10,000 Employees
Senior level
10,000 Employees
Senior level
Cloud • Information Technology • Sales • Security • Cybersecurity
As a Senior Software Engineer on the Detections Platform team, you'll develop scalable cloud-based systems to enhance cybersecurity. Responsibilities include designing solutions in Go, mentoring peers, and ensuring code quality while collaborating across teams to tackle technical challenges efficiently.
11 Days Ago
Belfast, Northern Ireland
Remote
242 Employees
Senior level
242 Employees
Senior level
Artificial Intelligence • Machine Learning • Natural Language Processing • Conversational AI
As a Senior Backend Engineer at Smartcat, you will design and implement scalable backend services and APIs, optimize application performance, collaborate with teams, troubleshoot production issues, and participate in code reviews.
20 Days Ago
Belfast, Northern Ireland
Remote
242 Employees
Senior level
242 Employees
Senior level
Artificial Intelligence • Machine Learning • Natural Language Processing • Conversational AI
As a Senior Backend Engineer, you will enhance Smartcat's platform, designing and implementing scalable backend services and APIs, optimizing performance and security, and collaborating with cross-functional teams to resolve production issues and improve systems.
22 Days Ago
Belfast, Northern Ireland
Remote
242 Employees
Senior level
242 Employees
Senior level
Artificial Intelligence • Machine Learning • Natural Language Processing • Conversational AI
As a Senior Backend Engineer, you will design and implement scalable backend services and APIs, optimize performance and security, collaborate with cross-functional teams, troubleshoot production issues, and participate in code reviews and knowledge sharing.
2 Days Ago
Belfast, Northern Ireland
Remote
320 Employees
Mid level
320 Employees
Mid level
Fintech • Payments • Financial Services
As a Backend Software Engineer, you will develop cross-border payment solutions involving crypto and fiat currencies. You'll collaborate with the product team, build APIs and maintain services while ensuring high coding standards and effective communication with stakeholders.
15 Hours Ago
Belfast, Northern Ireland
Remote
190 Employees
Senior level
190 Employees
Senior level
Artificial Intelligence • Enterprise Web • Software
As a Senior Software Engineer on the Content Lake DX team, you'll design and develop scalable distributed systems, mentor peers, drive innovations, and enhance engineering standards while addressing complex technical challenges.
2 Days Ago
Belfast, Northern Ireland
Remote
40 Employees
Senior level
40 Employees
Senior level
Fintech • Mobile • Payments • Software
As a Senior Backend Engineer at RevenueCat, you will design, build, and maintain features for mobile subscription infrastructure. You'll work in a remote environment, focusing on reliability and performance while collaborating with your team. Your responsibilities include debugging, writing high-quality code, and mentoring others.
2 Days Ago
Belfast, Northern Ireland
Remote
326 Employees
Mid level
326 Employees
Mid level
Sports
As a Weekend Backend Engineer, you will develop scalable microservices and backend systems for millions of users, participate in code reviews, respond to production issues, and mentor junior team members. You’ll work in a distributed environment with a focus on cloud technologies like Docker and Kubernetes, ensuring system stability and performance.
2 Days Ago
Belfast, Northern Ireland
Remote
326 Employees
Mid level
326 Employees
Mid level
Sports
As a Backend Engineer, you will develop microservices in a containerized environment focusing on scalability for millions of users. You will collaborate with team members to build features, mentor junior developers, conduct code reviews, and maintain applications in production. The role emphasizes object-oriented programming, advanced system design, and proficiency with cloud technologies like AWS and container solutions.
3 Days Ago
Belfast, Northern Ireland
85,636 Employees
Senior level
85,636 Employees
Senior level
Aerospace • Logistics • Security • Software • Cybersecurity
As a Lead Backend Developer, you will design, develop, and maintain backend infrastructure, lead a software development team, contribute to coding, manage project roadmaps, and identify technical risks in complex projects.
2 Days Ago
Belfast, Northern Ireland
Remote
179 Employees
Senior level
179 Employees
Senior level
Information Technology
As a Senior Backend Engineer at Airalo, you will design and maintain high-performance systems, develop scalable services, create RESTful APIs, and collaborate on migrating to service-oriented architecture, while writing clean and testable code.
3 Days Ago
Belfast, Northern Ireland
Remote
326 Employees
Senior level
326 Employees
Senior level
Sports
As a Senior Backend Engineer, you'll develop microservices in a containerized environment for a leading Sports Betting website. You'll work on core logic for complex systems, enhance scalability, participate in code reviews, mentor team members, and respond to production support calls.
3 Days Ago
Belfast, Northern Ireland
Remote
320 Employees
Senior level
320 Employees
Senior level
Fintech • Payments • Financial Services
The Software Engineer will collaborate with the product team to develop and maintain solutions for cross-border payments involving crypto and fiat currencies. Responsibilities include designing and documenting code, engaging with stakeholders, and contributing to the engineering culture.
6 Days Ago
Belfast, Northern Ireland
Remote
15 Employees
Mid level
15 Employees
Mid level
Artificial Intelligence • Insurance
As a Backend Engineer at Kalepa, you will work on a greenfield opportunity solving complex problems involving data pipelines, distributed systems, and machine learning models. You'll collaborate with a global team to develop scalable microservices and work with various technologies, primarily focusing on Python and AWS for building robust infrastructure.
5 Days Ago
Belfast, Northern Ireland
Remote
900 Employees
Senior level
900 Employees
Senior level
Blockchain • Software • Web3
As a Senior Backend Engineer, you will build and maintain Wallet API infrastructure and tooling, manage proposed APIs, and work with partners to shape wallet API standards. You will ensure the API meets the needs of MetaMask developers while evolving with the web3 ecosystem.
5 Days Ago
Belfast, Northern Ireland
Remote
320 Employees
Mid level
320 Employees
Mid level
Fintech • Payments • Financial Services
The Software Engineer role at BVNK involves building seamless cross-border payment solutions integrating crypto and fiat currencies, focusing on quality code and innovative engineering practices while collaborating with product teams to enhance customer experience.
6 Days Ago
Belfast, Northern Ireland
Remote
15 Employees
Senior level
15 Employees
Senior level
Artificial Intelligence • Insurance
As a Senior Backend Engineer, you will tackle complex problems involving large data pipelines, distributed systems, and machine learning models. You'll be part of a global team, focusing on building scalable microservices and robust infrastructure using a variety of technologies.
6 Days Ago
Belfast, Northern Ireland
1,141 Employees
Senior level
1,141 Employees
Senior level
Hardware • Machine Learning • Software
As a Senior Backend Engineer at DemandScience, you will develop and maintain scalable services to improve data quality. Responsibilities include building APIs, conducting code reviews, mentoring junior developers, ensuring code quality through testing, and participating in agile ceremonies. You will work with multiple technologies, focusing on high-performance and reliable implementations.
6 Days Ago
Belfast, Northern Ireland
Remote
431 Employees
Senior level
431 Employees
Senior level
News + Entertainment
The Senior Backend Engineer will develop and enhance software products for delivering music royalties, collaborating with product managers and engineers to design scalable systems, mentor team members, and improve engineering practices. They will work with technologies like Scala, AWS, and CI/CD within a highly collaborative team environment.
6 Days Ago
Belfast, Northern Ireland
Remote
1,300 Employees
Mid level
1,300 Employees
Mid level
Software
As a Senior Backend Engineer at Grafana, you'll develop and enhance features for IRM solutions, collaborate with cross-functional teams, contribute to design documents, and ensure a positive customer experience through on-call support. The role emphasizes coding, teamwork, and a commitment to user experience and product quality.
6 Days Ago
Belfast, Northern Ireland
1,354 Employees
Mid level
1,354 Employees
Mid level
Gaming • eSports
The Software Engineer will design and build distributed APIs and microservices, participating in the full software development lifecycle, solving technical challenges, and contributing to team activities. Collaboration and innovation are key as they work on improving various gaming services.
6 Days Ago
Belfast, Northern Ireland
Remote
578,950 Employees
Mid level
578,950 Employees
Mid level
Big Data • Cloud • Logistics • Machine Learning • Retail
The Senior Software Engineer - Backend will develop applications using Java, contribute to component design, manage defects, and ensure high-quality code through testing and monitoring. The role involves collaborating with team members to innovate and enhance customer experiences across Walmart's platforms.
8 Days Ago
Belfast, Northern Ireland
Remote
1,300 Employees
Senior level
1,300 Employees
Senior level
Software
As a Principal Backend Engineer at Grafana, you'll design, build, and maintain critical systems, driving innovations and contributions to open-source projects. You will also mentor team members and take ownership of the services, ensuring reliability and performance in a remote-first, collaborative environment.
6 Days Ago
Belfast, Northern Ireland
Remote
164 Employees
Senior level
164 Employees
Senior level
Software
As a Senior Kotlin Backend Developer, you will enhance existing backend systems and introduce new functionalities, ensuring code quality through testing and collaboration. Your role includes mentoring junior team members and adopting agile practices to drive the development process. Engage with cutting-edge technologies within a supportive team environment.
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