76 to 100 of 142 Software Engineering Jobs in Belfast

Program Director

Hiring Organisation
Hackajob Ltd
Location
Belfast, County Antrim, Northern Ireland, United Kingdom
Employment Type
Permanent
client is a UK digital technology and software consultancy. Join our client and Shape the Future Were problem solvers, innovators, and collaborators - driven by a shared mission to create real impact. Whether were transforming digital services for millions, delivering cutting-edge Workday solutions, or pushing the boundaries of technology … Sector , preferably Healthcare . Proven experience planning, coordinating and managing complex programmes across multiple teams and suppliers , circa 50+ staff. Experience in leading bespoke software delivery, including data and cloud platforms Experience in using agile methodologies withing structured governance frameworks Proven track record of delivering complex £10m+ per anum ...

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 expertise ...

Senior Go Microservices Engineer — Remote-First Backend

Location
Belfast City District, Northern Ireland, United Kingdom
DailyPay, a leader in on‐demand pay, is seeking a Senior Software Engineer to join a high‐impact team. You will help improve how services are deployed and accessed, move data efficiently across our platform, and drive automation to support future scale. The role focuses on building robust ...

Senior Software Engineer (Java Or Python) - VP

Location
Belfast City District, Northern Ireland, United Kingdom
## Senior Software Engineer (Java Or Python) - VPApplylocations: Belfast United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: 26969354**Senior Software Engineer (Java Or Python)**Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. … designing and delivering **scalable, cloud‐native applications*** Exposure to Gen‐AI concepts including: + Large Language Models (LLMs) and transformer‐based systems + Prompt engineering and basic agent workflows + Vector search and retrieval concepts* Familiarity with Gen‐AI frameworks/tools such as **LangChain, LangGraph, MLflow, or workflow ...

Senior Software Engineer (Java Or Python) - VP

Location
Belfast City District, Northern Ireland, United Kingdom
Senior Software Engineer (Java Or Python) Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. … Experience designing and delivering scalable, cloud‐native applications Exposure to Gen‐AI concepts including: Large Language Models (LLMs) and transformer‐based systems Prompt engineering and basic agent workflows Vector search and retrieval concepts Familiarity with Gen‐AI frameworks/tools such as LangChain, LangGraph, MLflow, or workflow orchestration tools ...

Senior Software Engineer

Location
Belfast, Northern Ireland, United Kingdom
Senior Software Engineer, you will play a key role in designing, developing and maintaining high performance cloud-based applications. You’ll work with cutting-edge Azure technologies to support our mission in precision medicine research. You will be a vital link between the software team and Internal & external … Responsibilities Develop & maintain applications using .NET (C#), .NET Core, and Azure technologies. Collaborate with product managers, designers, and developers to create high-quality software solutions. Mentor junior members of the development team, providing expert support when required. Contribute to design decisions for up-and-coming projects Become a vital ...

Senior Front-End Engineer (React) – Hybrid

Location
Belfast City District, Northern Ireland, United Kingdom
will build, test, and maintain web applications using React on the frontend and Java on the backend, collaborating with experienced developers to grow your software engineering skills in a team-centric environment. You will contribute to code reviews, testing, and delivery of features, with mentorship and opportunities ...

Senior Python Engineer — Cloud Integrations & Security

Location
Belfast City District, Northern Ireland, United Kingdom
Proofpoint is hiring a Senior Software Engineer for the XFI team within the Cloud Integration Group in Belfast. You will help scale the Cross Functional Integrations services that connect to Microsoft and Google email platforms, delivering secure, high-performance integrations for both inbound and outbound traffic. You will design ...

Senior Staff Software Engineer

Location
Belfast, Northern Ireland, United Kingdom
products, while Insights provides analytical dashboards and data visualizations to help clients understand trends and patterns in their data. Staff Engineers at Bazaarvoice lead software initiatives from conception to delivery, while driving engineering best practices and helping mentor talent. Who you are: BSc in Computer Science or equivalent ...

Senior Software Engineer

Location
Belfast City District, Northern Ireland, United Kingdom
Contact us Senior Software Engineer Contract: Full-time Location: Belfast, UK OR London, UK Salary: DOE Team: Engineering About Ctrl Alt Ctrl Alt is designing and operating the on-chain infrastructure powering digital capital markets globally. We bring together a unique blend of expertise in financial markets … partners to access and place orders our platform Take a loosely defined problem through to a valid, technically sound, thoroughly documented, tested, and implemented software solution Collaborate with team members and other engineers across the company Advocate best coding practices to raise the bar for you, your team ...

Remote Frontend Engineer - React & TypeScript

Location
Belfast, Northern Ireland, United Kingdom
leading technology provider is seeking a Front End Software Engineer to join their team in Belfast. The role involves working on dynamic web ordering platforms and requires 3+ years of experience. Skills in React, TypeScript, and NextJS are essential. This position is fully remote, providing flexibility to work from ...

Pega Low‐Code Engineer — Agile, Full‐Stack & Automation

Location
Belfast City District, Northern Ireland, United Kingdom
Aflac Northern Ireland is seeking experienced Software Engineers who enjoy learning new technologies and working in Agile teams to accelerate adoption of Pega, our enterprise workflow automation platform, in Belfast. You will deliver high-quality customer-centric solutions, integrate web/API/database components for full-stack Pega ...

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 work ...

KDB+ VP: Real-Time Analytics Architect (Hybrid)

Location
Belfast City District, Northern Ireland, United Kingdom
Citi Belfast is seeking a KDB+ Software Engineer (Vice President) to design and implement real-time market data and analytics in KDB+/q. You will own delivery from design to production, collaborating with Traders, Quants, and Global Technology to optimize latency in a hybrid Belfast setting. The role ...

KDB+ VP Engineer — Real-Time Market Analytics (Hybrid)

Location
Belfast City District, Northern Ireland, United Kingdom
Citi Belfast is hiring a KDB+ Software Engineer to design and deploy timeseries-based analytics for Equities Trading Clients. You will join a Global team delivering real-time market data systems, with a focus on low-latency performance and scalable analytics. Strong KDB+/Q, Java and Python skills ...

Senior Software Developer

Location
Belfast, Northern Ireland, United Kingdom
Role Overview Enea are looking for experienced software engineers to immediately join our experienced team. Successful candidates will be enthusiastic about software development and technology and keen to learn about leading edge technologies. If you love technology and gadgets then you’ll love this job! You will … results orientated workplace where initiative is valued, accomplishments are rewarded, and the goal is clear; to become a worldwide leader in Internet based communications software and services for wireless and wireline communications companies. With the size and variety of what we do – from video optimisation to mobile broadband price ...

Staff Full-Stack Software Engineer - Mission Control (Satori)

Location
Belfast City District, Northern Ireland, United Kingdom
enterprise scale: transparent, controllable, and dependable 24/7/365. The environment is fast-paced, rapidly scaling, and highly collaborative across multiple engineering and product teams. The opportunity for transformational impact is significant. If this excites you, we want you on our team. What You Bring … Team Able to work on-site four days per week at our Belfast office Extensive meaningful hands-on engineering experience developing large scale systems using JavaScript, TypeScript, or similar. Direct hands-on experience with and deep knowledge of React and TypeScript, plus one or more UI back-ends (Rails ...

Sr. Software Engineer (Python)

Location
Belfast City District, Northern Ireland, United Kingdom
best in class outcomes Visionary in future focused problem-solving Exceptional in execution and impact The Role We are looking for a Senior Software Engineer to join the XFI (Cross Functional Integrations) team within the Cloud Integration Group. The XFI team oversees the integration of Post Delivery Protection & Response … threat defence software, via API, to the Microsoft or Google e‐mail platforms, for both inbound and outbound. You will be joining the team at an exciting time, as the team prepares to furtherly scale the XFI services and products and the next steps of integration with Microsoft ...

HR Business Partner - Global Technology role

Location
Belfast City District, Northern Ireland, United Kingdom
sound judgement and experience supporting organisational change. Experience partnering with technology teams would be particularly useful, as would an understanding of roles such as software engineering and product ownership. Above all, you will be proactive, commercially aware and able to turn broad people priorities into action. The opportunity ...

Sales Development Representative

Location
Belfast, Northern Ireland, United Kingdom
Environment, and effectively and safely manage data. Our bioinformatic cloud product is sold on a licence fee basis, along with accompanying data science and software engineering professional services. Our clients and partners already include some of the biggest names around, and we’re now looking to appoint ...

GenAI-Driven Senior Software Engineer (Java/Python)

Location
Belfast City District, Northern Ireland, United Kingdom
Citigroup Inc. is seeking a Senior Software Engineer (Java or Python) to help shape next‐gen financial software. You will engage in full‐stack development, leverage Spring Boot/Core and Flask/FastAPI, and build cloud‐native solutions with modern JS frameworks. You will also explore ...

Senior Software Engineer: AI-Driven Finance, Hybrid

Location
Belfast City District, Northern Ireland, United Kingdom
Citi is recruiting a Senior Software Engineer (Java or Python) to help shape tech for global finance. You will work on full‐stack development, leveraging Spring Boot, Flask/FastAPI, and modern JS frameworks. Expect cloud-native design, Gen‐AI concepts, and involvement across architecture, infrastructure, and AI integration. ...

Tech Customer Success Engineer — Build Apps & Automations

Location
Belfast City District, Northern Ireland, United Kingdom
Budibase is seeking a Customer Support Engineer to assist customers via email, chat, and video calls. This technical role requires hands-on experience in software engineering, IT, or technical support. You will help users adopt Budibase, write clear docs, and collaborate with product teams to address issues. ...

Software Engineer

Location
Belfast City, Northern Ireland, United Kingdom
Opportunity We’re looking for a Software Engineer to join our team and help us build the future of tokenization at Ctrl Alt. As a full‐stack engineer you’ll be working within small feature teams to deliver solutions to real problems that make it into the hands … partners to access and place orders our platform Take a loosely defined problem through to a valid, technically sound, thoroughly documented, tested, and implemented software solution Collaborate with team members and other engineers across the company Advocate best coding practices to raise the bar for you, your team ...

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

Location
Belfast City District, Northern Ireland, United Kingdom
Global Fixed 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 … 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 ...