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Ernst & Young

Global professional services: consulting, tax, assurance.

Lead .NET Developer

Full-TimeUpdated on 10/15/2026
No salary listed
Expert
Wrocław, Poland
HybridTwo days in the office and three days remote; the description also names Katowice as a work location.
Software EngineeringFull-Stack Engineering

About the job

Requirements
  • Proactively anticipate project issues, risks, and threats; define problems, identify possible causes, work with the team to identify solutions, and select and implement the most appropriate solution.
  • Make key decisions based on input from Team, Group, and/or Global Leads; understand IT Services principles, firm and business objectives, and needs analysis.
  • Apply judgment in implementing Application Engineering methodologies, processes, and practices to project and program requirements, including product design engineering, information security, code maintainability, and reliability.
  • Use strong analytical and problem-solving skills to manage multiple technical challenges simultaneously across assigned projects.
  • Have .NET skills, including C#.NET, ASP.NET, MVC, and Windows Services.
  • Have database skills, including MS SQL Server, stored procedures, views, functions, and T-SQL.
  • Have client web technology skills, including JavaScript, CSS, Bootstrap, JQuery, NodeJS, Angular, and HTTP REST calls.
  • Demonstrate effective communication, including presenting ideas clearly and concisely, and experience managing and motivating virtual teams.
  • Have good analytical and problem-solving skills to manage multiple project factors simultaneously.
  • Be able to multitask using Agile Methodology.
  • Have 10+ years of experience in Application Design/Development, with demonstrated experience working with vendor applications, external resource providers, and managing business relationships to deliver value for money.
Responsibilities
  • Serve as the subject matter expert for the end-to-end business process supported by the tools, understand the business problem and requirements, and partner with application architecture, business sponsors, and business experts to develop cost-effective, fit-for-purpose solutions.
  • Manage technical project deliverables within agreed budgets and timelines, and ensure the team uses appropriate methodologies and meets high coding-quality standards.
  • Manage technical tasks within the project plan, coordinate with the project manager, resource projects appropriately, and ensure the project team follows processes for quality delivery.
  • Work hands-on as a developer and provide authoritative input on architecture and solutioning based on practical scenarios and code-development skills.
  • Participate in all aspects of the delivery cycle, from sprint planning through release.
  • Deliver quality, robust code that performs well and can scale as needed.
  • Lead global Application Engineering teams on assigned projects using local and remote resources, internal employees, and contingent staff; mentor project staff, work with Solution Delivery Managers on project issues, work with the Team Lead on engineering-staff issues, and support and monitor progress toward delivery goals.
  • Provide supervision and support to ensure quality and adherence to Application Engineering methodologies, standards, leading practices, budgets, and timelines.
  • Lend expertise to internal IT teams, task forces, and other IT projects and programs.
  • Promote and demonstrate commitment to Application Engineering methodologies, processes, best practices, and quality delivery standards, and recommend process improvements when necessary.
Desired Qualifications
  • Have experience leading global Application Engineering teams using local and remote resources, internal employees, and contingent staff, including mentoring project staff and supporting delivery progress.
  • Exercise influence at many levels of the organization, up to the Global Lead level.
  • Have Azure skills, including an Azure DevOps environment.
  • Have reporting skills, including Power BI, Power Query, and SSRS.
  • Have SharePoint skills, including Server Object Model, JSOM/CSOM, SharePoint REST API, PHA, and SHA.

About the company

EY is a global professional services firm that offers consulting, assurance (audits), tax, and transaction advisory services to a wide range of clients including corporations, SMEs, and government entities. It earns fees for these services and uses its industry expertise and a worldwide network to help clients optimize operations, manage risk, and achieve sustainable growth. EY differentiates itself through its scale and reach, industry specialization, focus on end-to-end services, strategic alliances, and emphasis on innovation and sustainability, including improving audit quality and addressing digital economy needs and supply chain visibility. The company’s goal is to help clients navigate complex regulatory and business environments, transform finance and tax functions, and drive efficiency and resilience across their operations.

Company Size

1,001-5,000

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

Business Insider
Oct 8th, 2026
EY adds nearly 10,000 staff globally as AI revenue surges 50%

EY added nearly 10,000 staff globally in its 2026 financial year as AI-related revenue surged almost 50%. The Big Four firm's workforce reached 415,000, with most growth concentrated in global delivery services and offshoring centres. The Americas division saw headcount decrease by roughly 4,500, or 5%. Overall global revenue rose 4.7% to $57 billion. EY-Parthenon was the fastest-growing service line, with revenue increasing 7.4% to $6.8 billion, marking a turnaround after two years of minimal growth. Tax revenue rose 6% to $13.8 billion, whilst consulting grew 4.4% to $17.4 billion. The results reflect EY's "All-In" strategy under global chair Janet Truncale, with billions invested in transforming operations and AI services.

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.