Python Technical Architect

Ernst & Young Advisory Services Sdn Bhd; Katowice; On-site; PLN 240,000 - 360,000; Full time

Benefits offered by this job

Continuous learning

Diverse and inclusive culture

Transformative leadership

9 locations collaboration

Job summary

EY GDS Poland is seeking a Python Technical Architect to lead backend and cloud architecture within the EY Digital team. You will shape technical direction, guide development teams and ensure secure, scalable solutions across platforms.

You will own solution design, set engineering standards and mentor engineers while collaborating with DevOps, analysts and architects to deliver robust systems.

Qualifications

• 8+ years of commercial software engineering experience, with strong backend Python.
• Experience designing backend services, REST APIs, event-driven components or data pipelines.
• Practical cloud experience with AWS and/or Azure, designing secure, scalable services.
• Experience defining non-functional requirements: performance, security, reliability.
• Experience leading developers technically: code reviews, mentoring, delivery ownership.
• Strong knowledge of architecture, Clean Code, testing and docs.
• Experience with CI/CD, Git and automated deployments.

Responsibilities

• Own solution design for Python-based backend services and cloud-native solutions.
• Define technical architecture, implementation approach and engineering standards.
• Ensure security, scalability, observability and resilience of solutions.
• Lead development team, remove blockers and ensure delivery quality.
• Review code and promote clean, testable Python across teams.
• Document trade-offs and guide implementation decisions.
• Collaborate with stakeholders to translate requirements into robust tech.
• Share Python knowledge through sessions, code reviews and guidelines.
• Mentor and grow the Python competency within the team.

Skills

Python

Backend development

Cloud architecture

Technical leadership

REST APIs

CI/CD

Docker

Kubernetes

AWS

Azure

Education

BTech/MTech OR Master’s in Computer Applications

Tools

FastAPI

Django

Flask

SQLAlchemy

Pydantic

Celery

Job description

Let us introduce you the job offer by EY GDS Poland – a member of the global integrated service delivery center network by EY.

EY Global Delivery Services means 40.000 specialists providing globally IT, project management and strategic business services to EY member firms. In addition we deliver support and solutions to clients from all over the world.

The opportunity

We are looking for a Python Technical Architect with strong expertise in Python, backend/cloud architecture and technical leadership, as well as experience in shaping technical direction and leading development teams. The person in this role will join the EY Digital team and help strengthen our cloud competency by designing modern, secure and scalable solutions.

Your key responsibilities

• Own solution design for Python-based backend services, APIs, integrations, data processing components and cloud-native solutions.
• Define technical architecture, implementation approach, non-functional requirements and engineering standards for complex solutions.
• Ensure solutions are secure, scalable, observable, resilient and aligned with architectural standards.
• Lead a small or medium development team: split work, remove blockers, support delivery and keep technical quality under control.
• Review code, challenge design decisions and promote clean, testable and maintainable Python.
• Drive architectural decisions, document trade-offs and provide guidance during implementation.
• Work with stakeholders, analysts, architects, DevOps and engineering teams to translate business requirements into robust technical solutions.
• Share Python knowledge through practical sessions, examples, code reviews and reusable engineering guidelines.
• Support and guide people in the Python competency: help them grow, promote good engineering practices and encourage active participation.
• Hands-on approach to collaborating with R&D teams to identify and implement best practices and newsolutions that may enhance the efficiency of business processes.
• Willingness to report the progress of R&D projects and documenting the results of implementations, as well as post-implementation review.
• Practical, hands-on expertise in designing, testing, and implementing solutions — from workshops and pilots to proof‑of‑concepts and deployment of new or improved system features.

Skills and attributes for success

• Strong hands-on Python engineering background with the ability to solve complex technical problems directly.
• Ability to explain architecture in simple terms and document technical decisions clearly.
• Ability to balance business goals, delivery constraints, security, maintainability and long-term platform evolution.
• Pragmatic approach to architecture: avoiding over-engineering while choosing solutions the team can build, operate and maintain.
• Ability to raise the technical level of the team through reviews, pairing, mentoring and clear standards.
• Active knowledge sharing and community-oriented mindset focused on making other Python engineers more effective.

To qualify for the role, you must have

• BTech/MTech OR Master’s in Computer Applications
• 8+ years of commercial software engineering experience, including strong backend development in Python
• Very good knowledge of Python: clean code, typing, testing, packaging, performance basics and debugging production issues
• Experience designing backend services, REST APIs, event-driven components, integrations or data pipelines, including ownership of technical design decisions
• Practical cloud experience with AWS and/or Azure, including designing secure, scalable, observable and cost-aware services
• Experience defining or validating non-functional requirements such as performance, security, reliability, observability and maintainability
• Experience leading developers technically: code reviews, technical decisions, mentoring and delivery ownership
• Strong knowledge of architectural and design patterns, Clean Code, testing best practices and architectural documentation
• Experience with CI/CD, Git and automated deployments
• Experience supporting technical communities or competencies through mentoring, knowledge sharing, standards definition or reusable engineering guidance

Ideally, you’ll also have

• Experience with Python backend frameworks and ecosystem tools such as FastAPI, Django, Flask, SQLAlchemy, Pydantic, Celery or similar.
• Infrastructure as Code experience with Terraform, Bicep, ARM templates or AWS CDK.
• Experience with Docker, Kubernetes, Azure DevOps, GitHub Actions or similar delivery tooling.
• Experience with PostgreSQL, SQL Server, DynamoDB, Cosmos DB, S3, Blob Storage or similar database and storage technologies.
• Experience with distributed systems, messaging, queues, idempotency, retries and failure handling.
• Frontend awareness is useful, but this is not a frontend role.

What we look for

As we are a dynamic team of passionate specialists, and we work in international teams all over the world, we will look for the same business acumen. Facing with customers, we are "out of box thinking" professionals. Our top performers have a team players attitude and they cope with challenges on the daily basis. If it all sounds familiar to you - we are looking forward to seeing you on board.

What we offer

EY Global Delivery Services (GDS) is a dynamic and truly global delivery network. We work across nine locations – Argentina, Hungary, India, the Philippines, Poland, Sri Lanka, Mexico, Spain and the United Kingdom – and with teams from all EY service lines, geographies and sectors, playing a vital role in the delivery of the EY growth strategy. From accountants to coders to advisory consultants, we offer a wide variety of fulfilling career opportunities that span all business disciplines. In GDS, you will collaborate with EY teams on exciting projects and work with well-known brands from across the globe. We’ll introduce you to an ever-expanding ecosystem of people, learning, skills and insights that will stay with you throughout your career.

• Continuous learning: You’ll develop the mindset and skills to navigate whatever comes next.
• Success as defined by you: We’ll provide the tools and flexibility, so you can make a meaningful impact, your way.
• Transformative leadership: We’ll give you the insights, coaching and confidence to be the leader the world needs.
• Diverse and inclusive culture:You’ll be embraced for who you are and empowered to use your voice to help others find theirs.

About EY

EY | Building a better working world

EY exists to build a better working world, helping to create long-term value for clients, people and society and build trust in the capital markets.

Enabled by data and technology, diverse EY teams in over 150 countries provide trust through assurance and help clients grow, transform and operate.

Working across assurance, consulting, law, strategy, tax and transactions, EY teams ask better questions to find new answers for the complex issues facing our world today.

The exceptional EY experience. It’s yours to build.

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