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Ernst & Young

Provides consulting, assurance, and tax services

Software Engineer Senior Consultant - Modern Engineering

Full-TimePosted on 10/2/2026
No salary listed
Senior
Dublin, Ireland
HybridHybrid working is offered; client-facing work may require regular travel or time at client sites.

About the job

Requirements
  • Strong, current software-engineering capability.
  • Recent production coding and code-review experience.
  • Proficiency in Java and Spring Boot or an equivalent enterprise back-end stack.
  • Experience with React and/or Angular and TypeScript.
  • Understanding of APIs, distributed systems, integration, and data persistence.
  • Experience with automated testing, source control, and modern delivery toolchains.
  • Working knowledge of AWS and/or Azure, containers, and Infrastructure as Code.
  • Understanding of secure coding, identity, observability, and production support.
  • Strong debugging and problem-solving skills.
  • Five or more years of progressive software-engineering experience.
  • Recent hands-on contribution to production applications or services.
  • Experience delivering enterprise applications through design, build, test, and deployment.
  • Experience with modern back-end and front-end technologies.
  • Experience with APIs, persistence, automated testing, and CI/CD.
  • Exposure to cloud platforms, containers, and production observability.
  • Experience resolving performance, reliability, security, or production issues.
Responsibilities
  • Design, develop, test, and maintain production-quality applications and services.
  • Translate requirements into implementable technical designs.
  • Write clean, secure, and maintainable code.
  • Participate in code and pull-request reviews.
  • Profile applications and diagnose complex defects.
  • Take responsibility for assigned services throughout development and operation.
  • Escalate material architectural decisions to the Engineering Lead.
  • Develop enterprise services using current Java and Spring Boot technologies.
  • Design relational and NoSQL data models and persistence layers.
  • Apply transaction, indexing, query-optimization, and schema-evolution practices.
  • Build automated tests and debug production issues.
  • Deliver secure, high-performing, and resilient services.
  • Develop modern applications using React and/or Angular with TypeScript.
  • Apply component architecture, state-management, and API-integration patterns.
  • Create accessible, responsive, and secure user experiences.
  • Implement unit, integration, and end-to-end testing.
  • Address browser performance, accessibility, and web-security considerations.
  • Design and implement RESTful APIs using OpenAPI standards.
  • Develop messaging and event-driven integrations.
  • Apply distributed-system principles including consistency, caching, idempotency, and recovery.
  • Use domain-driven design, clean architecture, and contract testing.
  • Contribute to scalable, resilient integration solutions.
  • Use AI coding assistants responsibly across development and testing.
  • Contribute to evaluated retrieval-augmented generation and agent-enabled solutions.
  • Support prompt engineering, evaluation, and monitoring.
  • Apply privacy, security, guardrails, and human oversight.
  • Measure the impact of AI-assisted engineering on quality, productivity, and delivery outcomes.
  • Build and operate solutions across AWS and/or Azure and hybrid environments.
  • Use Infrastructure as Code and automated configuration management.
  • Deploy containerized workloads using Kubernetes and/or OpenShift.
  • Contribute to CI/CD and GitOps pipelines.
  • Apply secure configuration, resilience, and cost-conscious engineering practices.
  • Build automated functional, integration, security, and resilience tests.
  • Apply OWASP, identity and access-management, and dependency controls.
  • Implement logs, metrics, traces, and service-level objectives.
  • Support incidents, root-cause analysis, and remediation.
  • Maintain operational documentation and runbooks.
  • Drive measurable improvements in quality, reliability, and delivery performance.
  • Communicate technical issues and recommendations clearly.
  • Support estimation, planning, and technical discovery.
  • Mentor less-experienced engineers.
  • Demonstrate solutions to client and EY stakeholders.
  • Contribute technical input to proposals when required.
  • Support an inclusive, collaborative engineering culture.
Desired Qualifications
  • Regulated-industry experience is advantageous.
  • Experience with Kubernetes or OpenShift, Terraform, and GitOps.
  • Experience with event-streaming or messaging technologies.
  • Experience with internal developer platforms and reusable engineering services.
  • Experience with retrieval-augmented generation or agent-enabled solutions.
  • Experience with OAuth 2.0, OpenID Connect, SAML, and enterprise identity.
  • Experience with financial-services security, resilience, and regulatory requirements.
  • Experience mentoring engineers or leading a small technical workstream.

About the company

EY (Ernst & Young) is a global professional services firm that provides consulting, assurance, tax, and transaction advisory services across industries such as energy, healthcare, financial services, and real estate. Its work centers on helping clients solve critical business challenges by offering high-value advisory support in areas like supply chain, cybersecurity, sustainability, and digital transformation; revenue comes from fees for consulting, audit, and advisory services. What sets EY apart is its breadth of services across multiple disciplines, deep industry knowledge, and emphasis on thought leadership and research to inform clients’ strategic decisions. The firm aims to help organizations improve operational efficiency, navigate regulatory environments, and stay ahead of market trends by delivering practical, evidence-based guidance and execution support.

Company Size

10,001+

Company Stage

N/A

Total Funding

N/A

Headquarters

London, United Kingdom

Founded

1991

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What believers are saying

  • EY.ai Agentic for Sales launched March 2, 2026 with Snowflake and Canva.
  • EY uses client-zero deployments, scaling Copilot across 400,000 people by May 2026.
  • EY’s 2026 AI assurance push monetizes client demand for governance, controls, and risk reviews.

What critics are saying

  • Sabah filed RM2.4 billion audit-negligence claims against EY on July 30, 2026.
  • EY set aside £188 million in March 2026 after NMC, Shell, and Made.com scrutiny.
  • Repeated audit failures can destroy trust, trigger client defections, and shrink the franchise permanently.

What makes Ernst & Young unique

  • EY Canvas processes 1.4 trillion journal-entry lines across 160,000 global audits.
  • EY-Microsoft invested US$1b+ in May 2026 to industrialize enterprise AI delivery.
  • EY launched agentic audit AI on April 7, 2026, spanning Assurance and AI assurance.

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Benefits

Professional Development Budget

Flexible Work Hours

Remote Work Options

Company News

PR Newswire
Sep 9th, 2026
US oil producers hit record output as capital spending drops 49% and reserve replacement falls

An Ernst & Young study found US oil and gas producers reached record production in 2025 while becoming more selective with investments. The analysis of 30 major exploration and production companies, representing 43% of US oil and gas output, showed oil production hit a study-period high, yet reserve additions from extensions and discoveries declined 11% year over year and failed to fully replace production volumes for the first time since 2021. Total capital expenditures fell 49% year over year, whilst M&A spending declined 70%. Exploration spending dropped 11% to $4.8 billion, representing only 3% of total capital expenditures. Natural gas showed stronger fundamentals, with production rising 18%, reserves increasing 14%, and discoveries up 21%.

Yahoo Finance
Aug 31st, 2026
EY commits $100M to bonuses rewarding human skills alongside AI adoption

Ernst & Young's US division is allocating $100 million this fiscal year to bonus payments rewarding employees who demonstrate adaptability, innovation, and judgement. Individual spot awards reach $500, whilst employees or teams making significant contributions can receive between $10,000 and $25,000, five times the previous programme's ceiling. The initiative also covers AI experimentation. "What we recognise signals what we value," said Ginnie Carlier, chief talent and culture officer for EY Americas. The bonuses form part of a broader strategy to reshape employee development across all career levels. Other professional services firms are pursuing similar approaches. KPMG restructured its audit internship this summer to emphasise critical thinking, whilst PwC US introduced training combining AI proficiency with human qualities like empathy. EY reported AI-related revenue grew 30% year-over-year in 2025.

Consultancy.eu
Aug 28th, 2026
EY-Parthenon acquires Dutch digital strategy consultancy SparkOptimus

EY-Parthenon has acquired SparkOptimus, a Dutch digital strategy consultancy founded in 2010. The Amsterdam-based firm employs around 50 consultants and specialises in AI transformation, digital business model redesign and technology-driven transformation. SparkOptimus founders Alexandra Jankovich and Tom Voskes, both former McKinsey consultants, said joining EY-Parthenon will create significant value for clients and staff whilst providing access to broader capabilities. The acquisition marks EY-Parthenon's first European deal since 2021. EY-Parthenon, established in 2014, is EY's strategy consulting and transactions advisory business with around 25,000 professionals globally. Mark Reich, Partner at EY-Parthenon Netherlands, said SparkOptimus' expertise will complement existing capabilities in the Dutch market. The deal closes on 1 September 2026. Financial terms were not disclosed.

Yahoo Finance
Aug 18th, 2026
KPMG and EY win $579M UK civil servants training contract despite consultancy spending pledge

The UK Government has awarded a contract worth up to £456 million to KPMG and EY to train civil servants, the Financial Times reported, citing government procurement tracker Tussell. Under the arrangement, the firms will train officials across various skills areas, including AI, between 2026 and 2028. KPMG's share is capped at £319 million, representing almost a quarter of its total UK advisory net sales from last year. EY's portion is worth £137 million, equivalent to around 13% of its UK consulting revenue. The deal is the largest single contract awarded to Big Four companies since Tussell started tracking records in 2012. The previous record was a £322 million deal between the Foreign Office and PricewaterhouseCoopers in 2012.

Business Insider
Jul 30th, 2026
EY's 'invisible' AI router cuts token costs by 60% by directing queries to cheaper models

EY has introduced an "invisible" AI router to manage internal AI spending, helping cut token consumption by up to 60% since its April rollout. The router sits behind specialised AI tools and directs employee queries to the most appropriate model for each task, rather than defaulting to the most powerful option. Token costs have become a growing concern as AI providers increasingly charge based on usage. EY's AI Pulse survey found that 82% of senior leaders at companies investing in AI were worried about token usage. The router has been deployed on department-specific platforms, including tax and risk functions, though not on the general Microsoft Copilot chatbot available to all staff. EY has also implemented token budgets based on employees' roles and departments. The firm's global consulting AI leader Dan Diasio said companies should focus AI investment on areas with the deepest impact rather than spreading resources thinly.