26 to 40 of 40 Distributed Systems Jobs in Belfast

Principle Software Engineer

Location
Belfast City District, Northern Ireland, United Kingdom
solutions. Serve as the organization's technical authority for authentication, authorization, federation, and identity lifecycle management. Design and implement secure, scalable, and resilient software systems that support multiple products and engineering teams. Provide technical leadership and architectural guidance across cross-functional initiatives. Drive engineering excellence through software design reviews … based security, and modern authentication patterns. Experience building and operating identity solutions at scale for customer-facing SaaS applications. Strong experience designing and building distributed systems, APIs, and cloud-native applications. Deep understanding of software architecture, security principles, and modern engineering practices. Experience leading technical initiatives that span ...

Senior Consultant - Full-stack Developer - DE - Technology Consulting - UKI - Belfast

Location
Belfast City District, Northern Ireland, United Kingdom
levels of responsibility. Strong backend development experience using Node.js, Java, Python, .NET or similar technologies. Proven ability to design and build scalable APIs and distributed systems. Solid experience with relational databases such as PostgreSQL or MySQL. Experience with testing frameworks, unit testing, integration testing and automated testing strategies. Strong … attention to detail. What we look for We’re interested in candidates who can take end‐to‐end ownership of complex features and systems, balancing hands‐on engineering with technical leadership. You should bring a strong voice in shaping how the team builds, delivers and scales software, with ...

Senior Consultant - Full-stack Developer - DE - TC - UKI - Belfast

Location
Belfast City District, Northern Ireland, United Kingdom
levels of responsibility. Strong backend development experience using Node.js, Java, Python, .NET or similar technologies. Proven ability to design and build scalable APIs and distributed systems. Solid experience with relational databases such as PostgreSQL or MySQL. Experience with testing frameworks, unit testing, integration testing and automated testing strategies. Strong … attention to detail. What we look for We're interested in candidates who can take end-to-end ownership of complex features and systems, balancing hands-on engineering with technical leadership. You should bring a strong voice in shaping how the team builds, delivers and scales software, with ...

Senior Mobile Software Engineer (Android) - Olo App

Location
Belfast City District, Northern Ireland, United Kingdom
resilience mechanisms. Monitor and maintain services in production, diagnosing and resolving critical issues efficiently with minimal support. Participate in the architecture and design of distributed systems, ensuring best practices are followed for reliability and scalability. Take the initiative to improve the team's development processes and tooling, advocating ...

Manager - Full-stack Developer - DE - Technology Consulting - UKI - Belfast

Location
Belfast City District, Northern Ireland, United Kingdom
levels of responsibility. Strong backend development experience using Node.js, Java, Python, .NET or similar technologies. Proven ability to design and build scalable APIs and distributed systems. Solid experience with relational databases such as PostgreSQL or MySQL. Experience with testing frameworks, unit testing, integration testing and automated testing strategies. Strong … attention to detail. What we look for We're interested in candidates who can take end‐to‐end ownership of complex features and systems, balancing hands‐on engineering with technical leadership. You should bring a strong voice in shaping our engineering culture in Belfast and the wider Digital Engineering ...

Hybrid .NET/C# Software Engineer – Build Scalable APIs

Location
Belfast City District, Northern Ireland, United Kingdom
Software Engineer to design, build and deliver high-quality .NET/C# applications in a hybrid environment. You will contribute to APIs, services and distributed systems while shaping technical direction alongside Product and QA teams. You'll work on cloud-native systems with a focus on reliability ...

Senior Java Engineer — High-Performance Microservices (Hybrid UK)

Location
Belfast City District, Northern Ireland, United Kingdom
Citigroup Inc. in Belfast, United Kingdom is seeking a Senior Software Engineer (Java) to design and develop large, complex distributed systems for the FiTP team. You will contribute to high volume trade capture and processing, with a focus on performance, scalability and reliability. The role requires strong Java ...

Senior Python Engineer — Cloud Integrations & Security

Location
Belfast City District, Northern Ireland, United Kingdom
services that connect to Microsoft and Google email platforms, delivering secure, high-performance integrations for both inbound and outbound traffic. You will design reliable distributed systems, improve scalability and reliability, and ship code daily using CI/CD pipelines while focusing on security and data protection. #J ...

Mobile Software Engineer (Android) - Olo App

Location
Belfast City District, Northern Ireland, United Kingdom
Assist in the deployment and monitoring of services, learning how to manage and troubleshoot issues in production environments. Contribute to building and maintaining reliable distributed systems, implementing resilience mechanisms as appropriate. Participate actively in team ceremonies and demonstrate initiative by taking ownership of tasks and helping to unblock ...

Managing Engineer - Observability, Pipeline & Analytics (Hybrid)

Location
Belfast City District, Northern Ireland, United Kingdom
operating large‐scale observability pipelines in complex enterprise environments and strong knowledge of observability principles including logs, metrics, traces, events, monitoring, alerting, and distributed systems. Strong knowledge of observability principles including logs, metrics, traces, events, monitoring, alerting, and distributed systems. Experience with cloud‐native architectures across Azure ...

Senior Custody Apps Support AVP — Global Hybrid

Location
Belfast City District, Northern Ireland, United Kingdom
custody and settlement platforms. You will apply SRE principles, automation, and observability to reduce toil and drive continuous service improvements. The role focuses on distributed systems, cloud-native tech, and cross-functional teamwork in a fast-paced, global environment. Hybrid working model available, with opportunities across EMEA, APAC ...

Senior Java Engineer: High-Performance, Hybrid, Fixed Income

Location
Belfast City District, Northern Ireland, United Kingdom
Citigroup Inc. in Belfast, United Kingdom, is seeking a Senior Software Engineer (Java) to design and evolve large, distributed systems for the FiTP team. The role focuses on high-volume trade capture and processing with a strong emphasis on low latency and multi-threaded Java applications. You will ...

Lead Engineer, Portal Reports & Insights

Location
Belfast, Northern Ireland, United Kingdom
global technology company based in Belfast is seeking a Lead Engineer for their Portal Reports and Insights team. You will be responsible for designing distributed systems and delivering high-performance applications, while mentoring junior engineers. The ideal candidate has over 7 years of experience in scalable systems ...

Junior Site Reliability Engineer — Scale & Automation

Location
Belfast City District, Northern Ireland, United Kingdom
Yelp is seeking a Site Reliability Engineer in the United Kingdom to help build and manage globally distributed systems. You’ll automate tooling, monitor performance, and own critical datastores while supporting feature development across teams. We value collaboration, self‐service, and continuous learning as we serve over 100 million ...

Senior Software Engineer (Java) - Fixed Income (AVP)

Location
Belfast City District, Northern Ireland, United Kingdom
Income Trade Processing (FiTP) Team is seeking a Senior Software Engineer (Java) with a proven track record of design and developing large, complex and distributed systems. This role is within the FiTP team in Belfast, United Kingdom. The successful individual will ideally have a good knowledge of Fixed Income … products and experience in building software systems to handle the capture and processing of high volume of such trades. In this fast paced environment you must be able to prioritize tasks, work within deadlines, taking a pragmatic and thoughtful approach, paying close attention to details. You will need ...