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Solution&Fullstack Engineer (Python+ JS) - AI First

Codest Ltd. Company No. 12590542, VAT number: GB363431020
Contract type
Ongoing
Work mode
Remote
Experience
Senior · 5+ years

Job description

Solution & Fullstack Engineer (Python + JavaScript) on an AI-first engineering team building a cross-asset post-trade execution platform for a leading financial group in Japan. The role spans backend and frontend development with ownership of end-to-end solutions and architectural input.

At a glance

Work mode
Remote
Languages
English – advanced

What you'll do

  • Designing, developing, and maintaining end-to-end fullstack solutions using Python or Python & Java on the backend and JavaScript on the frontend
  • Building and enhancing modern, responsive user interfaces and integrating them with backend services and APIs
  • Developing scalable backend services, APIs, and application components
  • Taking ownership of technical solutions, from requirements analysis and architecture design through implementation and deployment
  • Working with PostgreSQL, including designing and optimizing database structures, queries, functions, triggers, and views
  • Leveraging AI-powered development tools and AI-assisted coding practices to improve development efficiency, code quality, and delivery speed
  • Exploring opportunities to incorporate AI-driven automation and innovative solutions into engineering processes
  • Building rapid prototypes, validating technical concepts, and delivering solutions in a fast-paced environment
  • Participating in technical planning, solution design, testing, code reviews, and architectural discussions
  • Collaborating closely with cross-functional, international teams to translate business needs into effective technical solutions
  • Identifying opportunities for continuous improvement, automation, and technical optimization
  • Promoting engineering best practices, clean code, maintainability, and modern software development standards

What we're looking for

  • Advanced English communication skills, both written and spoken, for collaboration with international clients and teams
  • 5+ years of commercial experience in software engineering, preferably in fullstack or backend-oriented roles
  • Strong commercial experience with Python
  • Practical experience with JavaScript and frontend development using modern frameworks such as React or Angular
  • Solid understanding of fullstack application architecture, including frontend-backend integration, REST APIs, and distributed systems
  • Strong experience with PostgreSQL, including database design, query optimization, indexes, views, functions, and triggers
  • Good knowledge of object-oriented programming, software design principles, and clean code practices
  • Hands-on experience with AI-assisted development tools such as GitHub Copilot, Cursor, Claude Code, or similar solutions
  • An AI-first mindset, with openness to leveraging AI tools, automation, and emerging technologies throughout the software development lifecycle
  • Ability to approach technical challenges from a solution-oriented perspective, considering business requirements, scalability, performance, and maintainability
  • Experience with CI/CD processes, version control systems, and modern software development practices
  • Strong problem-solving skills, independence, and willingness to take ownership of technical solutions

Nice to have

  • Experience developing applications in banking, fintech, or financial services
  • Familiarity with AWS or other cloud platforms
  • Experience with Docker and containerized applications
  • Knowledge of Linux operating systems
  • Experience with TypeScript and modern frontend architectures
  • Familiarity with microservices architecture and event-driven systems
  • Experience with AI agents, agentic coding workflows, or AI-powered development automation
  • Experience designing technical solutions from scratch or contributing to architectural decisions

How to get hired

  1. 130 minute screening call online with our recruiter
  2. 245min-1h technical call with one of our engineers
  3. 31h call with the manager
  4. 4Offer

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About Codest Ltd.

International Tech Software Company

International Tech Software Company with tech hubs in Poland delivering global IT solutions and projects. Expertise centers on web development, cloud engineering, DevOps and quality. Developed own product Yieldbird, honored as a laureate of the Top25 Deloitte awards.

Mission

To help tech companies build impactful product and scale their IT teams through boosting IT delivery performance

Key facts

  • Company No. 12590542
  • VAT number: GB363431020
  • Tech hubs in Poland
  • Own product Yieldbird, laureate of the Top25 Deloitte awards

What they value

  • Customers and People First