Backend Software Developer jobs in Belfast

Outlier

Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw? We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents.

Outlier

Outlier helps the world’s most innovative companies improve their AI agents by providing human feedback. Do you want to shape the future of autonomous agents like OpenClaw? We collaborate with leading AI organizations to train Large Language Models (LLMs) to function as proactive, multi-step agents.

Initialize

Backend Python Developer (AI) - Remote - UK - excellent opportunity to join this innovative and fast-growing AI tech. organisation! Skills/experience 2+ years solid commercial Python coding experience (backend, API development). Good understanding of Docker and containerisation. An Agile mindset and

Citigroup Inc.

A global financial services firm in Belfast is seeking a server side engineer to join its Chief Technology Office. This role emphasizes driving solutions within projects like SDLC Automation and Release on Demand, enhancing productivity for 30k engineers. The ideal candidate will write quality code

Enso Recruitment is proud to be working with an ambitious, fast-growing technology start-up who are building innovative software solutions within a highly regulated industry. As the company continues to expand, they are now seeking a Senior Software Developer to play a key role in shaping and scalin

CIS Oncology

Description Help us connect and transform health and care. As a Software Developer at System C, you'll build secure, reliable and high-quality software that clinicians and operational teams depend on every day. Working in an Agile squad, you'll translate user needs into well-designed, well-tested se

ENEA

Role OverviewEnea 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

Empiric

Java developer: Please ensure you read the below overview and requirements for this employment opportunity completely. We are looking for expert developers to join one of our most exciting and important projects. You will be joining a large team to help shape the landscape of the United Kingdom, wor

Citigroup Inc.

We're looking for an enthusiastic & talented server side engineer, to join one our high-impact teams inside Citi's CTO organisation. You'll sit within Developer Enablement, a group focused on innovation, developer platforms and internal tools used across the bank, where we experiment and ship fa

AuditComply is a leading enterprise technology platform designed to mitigate risk, ensure compliance, and enhance quality assurance and vendor management for highly regulated industries—all within a single, integrated solution. By streamlining operations, delivering deep insights, and driving digita

Mineo

About the job Software Engineer, Java BackendJob Description: Location: On-site, Hybrid. Start date: As soon as possible. Languages: Fluent in English. Join the Mineo Team Were Hiring! At Mineo, we are creating the future of recruitment with an innovative platform powered by artificial intelligence.

Areti Group | B CorpTM

Senior Software Developer (Contract) Read on to find out what you will need to succeed in this position, including skills, qualifications, and experience. Rate: £450- 470pd inside IR35 Contract Length: Initial 3 months (starting ASAP) Location: Remote (UK-based) Essential Experience: Applicants must

Hays

Our client is a globally recognised organisation with a dedicated innovation function responsible for building cutting-edge applications that transform the working lives of finance and tax professionals. They are now seeking a Senior xehkeey Manager / Technical Lead to driv

Hays

Our client is a globally recognised organisation with a dedicated innovation function responsible for building cutting-edge applications that transform the working lives of finance and tax professionals. Their mission is to rapidly prototype ideas, gather meaningful user feedback and scale the solut

VANRATH

Our client, a global leader in financial technology and capital markets infrastructure, is hiring a C++ / Python Engineer to join an existing team based in Belfast. Competitive salary (DOE) Hybrid working (Belfast-based) Flexible working Bonus / share scheme Clear career progression You will be part

Citigroup Inc.

We're looking for multiple talented engineers, Server Side, to join one of our high-impact teams inside Citi's CTO organization. You'll sit within Developer Enablement, a group focused on innovation, developer platforms and internal tools used across the bank, where we experiment and ship fast like

Graduate Software Developer - Fully Remote Work, train into C#, PHP, SQL, Azure Please Note: Candidates must have laready graduated! Please do not apply if you require visa sponsorship, including Student/PSW Visas not eligible. Join Us: A reputable financial services provider and innovator seek a 1s

Citi

Senior Software Engineer – Java/Kotlin (Developer Enablement) – Vice PresidentCiti – Belfast, Northern Ireland, United Kingdom We're looking for multiple talented engineers to join one of our high‐impact teams inside Citi's CTO organisation. You'll sit within Developer Enablement, a group focused on

Ocho

Backend Software Engineer | Go, Java, AWS | Belfast (Hybrid) Location: Belfast (3 Days Hybrid) Type: Permanent About the Opportunity: This role sits within a high-performing backend engineering team building cloud-native systems that process large volumes of data in real time. The environment is fas

Empiric

Java developer: We are looking for expert developers to join one of our most exciting and important projects. You will be joining a large team to help shape the landscape of the United Kingdom, working alongside some of the brightest minds within the country. You will need to be a strong Software En