Senior Software Engineer, Full-Stack Applications (Python)

JobCubby; Manchester; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Impactful work

Modern technology stack

Continuous learning

Hybrid Manchester office

Innovation culture

Job summary

Fitch Ratings is seeking a Senior Software Engineer to join our global Ratings Technology team in Manchester. You will build and maintain full‑stack applications powering insights for analysts and decision‑makers, with backend in Java/Python and frontend in React.

You’ll work across data technologies (PostgreSQL, MongoDB), deploy on AWS, and leverage Kubernetes, CI/CD, and modern cloud tooling in a collaborative environment.

Qualifications

• 7+ years of enterprise app experience with modern web tech.
• Strong fundamentals in OOP, design patterns, and SOLID principles.
• Frontend/Backend fluency: ReactJS, Python, REST APIs, and data handling.

Responsibilities

• Develop and maintain full‑stack applications using Python (FastAPI/Flask) and React.
• Implement CI/CD pipelines with GitHub Actions and deploy to Kubernetes.
• Work with PostgreSQL and MongoDB, optimize queries and ensure data integrity.
• Collaborate with product managers, analysts, and engineers to meet business needs.
• Apply engineering best practices, code reviews, and performance improvements.
• Troubleshoot production issues and ensure reliability at scale.
• Stay updated with emerging technologies and contribute to improvements.

Skills

7+ years experience

OOP fundamentals

Communication

Full‑stack

Tools

Python

ReactJS

AWS

Kubernetes

GitHub Actions

FastAPI/Flask

PostgreSQL

MongoDB

Job description

Senior Software Engineer, Full-Stack Applications (Python) – Ratings Technology

Location: Manchester

Fitch Ratings is seeking a Senior Software Engineer to join our global Ratings Technology team in Manchester. You'll build and maintain mission-critical full-stack applications that power how a world-leading credit ratings agency delivers insights to analysts, executives, and decision-makers who shape global financial markets.

You’ll work on Ratings workflow and analytical applications using modern technologies across the full stack—from backend services in Java and Python to frontend applications in React. This role offers the opportunity to work with cutting‑edge cloud technologies, contribute to technical solutions, and grow your skills in a collaborative environment.

What We Offer:

• Impactful work – Build applications used by analysts worldwide with direct visibility to your contributions
• Modern technology stack – Work with Python, React, AWS, Kubernetes, and emerging AI technologies
• Continuous learning – Training, certifications, conferences, and clear paths to senior/principal/architect tracks
• Flexible environment – Work from our Manchester office with hybrid flexibility, competitive compensation, comprehensive benefits, and work‑life balance
• Innovation culture – Experiment with new technologies, contribute ideas, and help shape technical decisions

We'll Count on You To:

• Develop and maintain full-stack applications – Build robust, scalable applications using Python (FastAPI/Flask), and ReactJS following best practices and design patterns
• Contribute to the development lifecycle – Write clean, maintainable code, implement CI/CD pipelines with GitHub Actions, deploy to Kubernetes, and ensure quality through testing and code reviews
• Work with diverse data technologies – Develop solutions using RDBMS (PostgreSQL, Oracle) and NoSQL (MongoDB) databases, optimize queries, and ensure data integrity
• Collaborate across teams – Partner with product managers, analysts, and other engineers to understand requirements and deliver solutions that meet business needs
• Apply engineering best practices – Follow SOLID principles and design patterns, participate in code reviews, solve technical challenges, and contribute to code quality
• Support and improve systems – Troubleshoot production issues, optimize performance, and help ensure reliability of applications at scale
• Stay current with technology – Learn and experiment with emerging technologies, share knowledge with the team, and contribute to continuous improvement

What You Need to Have:

• Full-Stack Engineering Experience – 7+ years of hands‑on experience building enterprise applications and modern web technologies in production environments
• Software Engineering Fundamentals – Strong understanding of OOP concepts, design patterns, SOLID principles, algorithms, data structures, and ability to write clean, maintainable code
• Backend Development – Proficiency in Python (Pandas, FastAPI, Flask) for building enterprise applications, data processing, and API development
• Frontend Development – Experience with ReactJS, Node.js, TypeScript/JavaScript, and modern web development practices
• Database Technologies – Hands‑on experience with RDBMS databases (e.g., Oracle, PostgreSQL) and NoSQL databases (e.g., MongoDB)
• DevOps & Cloud – Experience with CI/CD pipelines, GitHub Actions, Kubernetes (K8s), shell scripting (Bash) for automation, and AWS cloud platform
• Effective communication and teamwork – Ability to collaborate with cross‑functional teams and communicate technical concepts clearly

What Would Make You Stand Out:

• AI and Machine Learning – Understanding of AI/ML concepts, experience with LLMs, prompt engineering, or integrating AI capabilities into applications
• Data Technologies – Experience with Kafka, PySpark, Parquet and Avro data formats, Apache Airflow for workflow management, or Streamlit for building interactive data applications
• Advanced Data Management – Strong SQL design, query optimization, and database architecture expertise
• Observability – Experience with observability patterns and tools like Datadog, distributed tracing, monitoring, and logging best practices
• DevOps and Infrastructure – Familiarity with ArgoCD for GitOps and Security/Access Management (IAM federation access via Entra ID)
• Financial Services Background – Experience with analytical workflows, financial products, or regulatory processes

Why Fitch?

At Fitch Group, the combined power of our global perspectives is what differentiates us. Our global network of colleagues comes together to accomplish things greater than they ever could alone.

Every team member is essential to our business, and each perspective is critical to our success. We embrace a diverse culture that encourages a free exchange of ideas, guaranteeing your voice will be heard and your work will have an impact, regardless of seniority.

We are building incredible things at Fitch, and we invite you to join us on our journey.

About Fitch Group

Fitch Group is a global leader in financial information services with operations in more than 30 countries. Wholly owned by the Hearst Corporation, we are comprised of three main businesses: Fitch Ratings | Fitch Solutions | Fitch Learning.

For more information please visit our websites: www.fitchratings.com | www.fitchsolutions.com | www.fitchlearning.com

Fitch is committed to providing global securities markets with objective, timely, independent and forward-looking credit opinions. To protect Fitch's credibility and reputation, our employees must take every precaution to avoid conflicts of interests or any appearance of a conflict of interest. Should you be successful in the recruitment process at Fitch Ratings you will be asked to declare any securities holdings and other potential conflicts prior to commencing employment. If you, or your immediate family, have any holdings that may conflict with your work responsibilities, you may be asked to divest yourself of them before beginning work.

Fitch Group is proud to be an Equal Opportunity and Aff