4 of 4 Permanent Legacy Systems Jobs in County Antrim

Oracle APEX Developer

Hiring Organisation
Frontier Resourcing
Location
Belfast, UK
Employment Type
Full-time
integration layers (OIC) to curate clean, well-modelled datasets. Contribute to data migration activities, ensuring accuracy, integrity and auditability throughout transitions from legacy systems. Apply security-by-design, access controls and logging appropriate for regulated MOD environments. Operate in Agile delivery squads with APEX devs, data engineers, integration ...

Power Platform Developer

Hiring Organisation
DTG Global
Location
Belfast, UK
Employment Type
Full-time
integrations Supporting a DevOps-led ALM process: pipelines, version control, solution packaging Collaborating across IT, data, and legal teams to deliver high-impact systems What They're Looking For Proven experience delivering with Power Platform (Power Apps & Automate) Confident with Dataverse, SharePoint, and Microsoft 365 integrations Strong working knowledge … support or BAU config role. You'll be helping to transform how legal services are delivered internally - building new apps, modernising legacy systems, and shaping best practice across the Microsoft stack. A great fit if you enjoy variety, autonomy, and building for long-term impact. Salary & Benefits ...

Senior Software Engineer (PHP)

Hiring Organisation
True9
Location
Belfast, UK
Employment Type
Full-time
talented team on our mission to help people and businesses thrive through technology. If you love untangling hard problems, improving legacy systems, and shipping clean, tested code, you'll fit right in. Your role as a Senior PHP Software Engineer at True9: Lead the back-end - write ...

Lead AI Engineer

Hiring Organisation
OutSystems
Location
Belfast, UK
Employment Type
Full-time
fields is highly valued. 7+ years of work experience in Machine Learning and AI Engineering roles, preferably building with LLMs and/or Agentic Systems, from development to production. Hands-on experience with LLM frameworks (e.g. langchain, langgraph, llamaindex, langsmith), AI platforms (e.g. Databricks, mlflow) and containerization solutions (e.g. … sprawling without governance, data isn't ready, and talent isn't there yet. Enterprises are still drowning in application backlogs and struggling with legacy systems. But with the right platform, AI doesn't have to add to the chaos. It can become the breakthrough that brings clarity ...