Principal, Full Stack Developer - European Bank for Reconstruction and Development (Sofia)

About this position

The summary below is published by European Bank for Reconstruction and Development on the official vacancy notice. Our own analysis — salary realism, comparable openings, career trajectory, language profile — follows further down the page.

Key responsibilities

According to the vacancy notice, the role centres on the following duties:

• Lead development, enhancement, and maintenance of enterprise-grade full-stack applications using Java (Spring Boot) and Angular within microservices and micro-frontend architecture
• Provide technical leadership in designing and implementing scalable, maintainable, and high-performing backend and frontend solutions
• Ensure best practices in API development, leveraging RESTful services, Open API, and Swagger for documentation
• Provide technical leadership in implementation of DevOps practices, including CI/CD and infrastructure automation using Jenkins, GitLab, and Terraform
• Lead oversight of development, testing, and maintenance of high-quality software solutions for vendor-based applications such as eFront, Daappa, Accurate, PowerBuilder, and Power Apps
• Drive performance optimisation, code refactoring, and adoption of modern development practices such as asynchronous processing and event-driven architectures
• Stay up to date with emerging technologies, including AI-assisted development tools and cloud-based AI services
• Define and govern quality metrics, test automation strategies, and continuous improvement processes across multiple teams

Are you eligible?

Check these requirements from the notice before investing time in an application:

• Education: Degree level in Computer Science, Engineering, or a related field (or equivalent practical experience)
• Key skills: Expert-level proficiency in JavaScript, TypeScript, and Angular, Deep architectural knowledge of Angular, Enterprise-scale frontend development, Mastery of SDLC, software architecture, and design principles, Performance optimisation and security best practices, Micro frontend architecture and best practices, Designing modular, reusable, and scalable UI components, CI/CD pipelines and DevOps practices, Automation, Containerisation (Docker)

Contract and working arrangements

Contract duration: 3 years.

Working arrangements: Hybrid and flexible working arrangements with minimum 3 days per week in person.

Hiring unit: Information Technology.

Position overview

This is the official EU Careers listing for Principal, Full Stack Developer at EBRD based in Sofia.

Requisition ID 36608 Office Country Bulgaria Office City Sofia Division Information Technology Contract Type Fixed Term Contract Length 3 years Posting End Date 24/08/2026

This is your chance to lead the charge in building high-impact, enterprise-grade applications that scale - fast. We're looking for a hands-on technical leader who thrives in the full-stack world of Java (Spring Boot) and Angular, and can drive a modern, cloud-native architecture using microservices, containerization, and DevOps automation. From designing robust APIs to embedding AI-assisted development, this role is built for someone who can think strategically and code tactically.

You won’t just be building apps , you'll be shaping how custom software is delivered across the organisation. This means championing full continuous delivery in the cloud, driving performance, security, and observability standards, and leading by example in test-driven development and CI/CD best practices. You'll mentor developers, influence architectural direction, and help define a culture of technical excellence that accelerates innovation and scales with the business.

Accountabilities & Responsibilities

Software Design and Development

* Leads the development, enhancement, and maintenance of enterprise-grade full-stack applications using Java (Spring Boot) and Angular within a microservices and micro-frontend architecture. * Provides technical leadership in designing and implementing scalable, maintainable, and high-performing backend and frontend solutions. * Ensures best practices in API development, leveraging RESTful services, Open API, and Swagger for documentation. * Provides technical leadership in implementation of DevOps practices, including continuous integration, continuous deployment (CI/CD), and infrastructure automation using tools like Jenkins, GitLab, and Terraform. * Leads the oversight of the development, testing, and maintenance of high-quality software solutions for vendor-based applications such as eFront, Daappa platforms, Accurate, PowerBuilder, and Power Apps. * Drives performance optimisation, code refactoring, and the adoption of modern development practices such as asynchronous processing and event-driven architectures. * Stays up to date with emerging technologies, including AI-assisted development tools and cloud-based AI services, evaluating their relevance for business use cases.

Quality Assurance

* Defines and governs quality metrics, test automation strategies, and continuous improvement processes across multiple teams. * Establishes a shift-left testing approach, ensuring security, performance, and compliance requirements are addressed early in the development lifecycle. * Implements automated testing frameworks and continuous integration processes to improve software quality and maintainability. * Fosters a culture of test-driven development (TDD), behaviour-driven development (BDD), and exploratory testing within Agile teams. * Collaborates with DevSecOps teams to embed security testing and vulnerability assessments into CI/CD pipelines.

Operations, Maintenance, Support, and Documentation

* Defines and optimises incident management and observability strategies, ensuring system uptime, scalability, and performance in production. * Establishes SLAs, SLOs, and error budgets, aligning operational goals with business requirements. * Leads post-mortem reviews and continuous improvement initiatives, driving long-term solutions for recurring issues. * Ensures documentation is comprehensive and up to date, covering architecture, deployment strategies, APIs, and troubleshooting procedures. * Promotes a self-service approach by improving developer tooling, automation, and platform engineering practices.

Data and Architecture

* Defines and evolve the enterprise-wide architecture strategy, ensuring alignment with cloud-native, microservices, and security best practices.• Leads scalability and reliability improvements, working with cloud platforms such as Azure (AKS, Cosmos DB, Service Bus, Azure SQL). * Evaluates and implements cutting-edge technologies, ensuring that they align with business needs and system performance goals. * Guides teams in performance tuning, scalability optimisation, and cost-efficiency initiatives for cloud-based infrastructure. * Engages in proof-of-concept initiatives to evaluate new tools, frameworks, and services, ensuring technical innovation is balanced with business value.

Knowledge, Skills, Experience & Qualifications

* Educated to degree level in Computer Science, Engineering, or a related field (or equivalent practical experience). * Expert-level proficiency in JavaScript, TypeScript, and Angular, including deep architectural knowledge. * Extensive experience with enterprise-scale frontend development.• Mastery of SDLC, software architecture, and design principles. * Deep understanding of performance optimisation and security best practices. * Strong knowledge of micro frontend architecture and best practices. * Experience designing modular, reusable, and scalable UI components. * Expertise in CI/CD pipelines, DevOps practices, and automation. * Strong experience with containerisation (Docker) and cloud deployments (Azure). * Ability to define API contracts, working closely with backend teams on REST and GraphQL APIs. * Extensive experience with unit testing, E2E testing, and automation strategies. * Strong knowledge of web accessibility (a11y) and internationalisation (i18n). * Thought leadership in emerging technologies and driving innovation within the team. * Exceptional leadership and team management skills. * Ability to mentor and develop junior and mid-level engineers. * Strong stakeholder management, collaborating with business and product teams. * Ability to define technical strategies and roadmap for frontend development. * Strong problem-solving abilities with a focus on scalability and maintainability. * Excellent written and verbal communication skills for both technical and non-technical audiences. * Ability to drive continuous improvement initiatives across the development team.

What is it like to work at the EBRD? / About EBRD

Our agile and innovative approach is what makes life at the EBRD a unique experience! You will be part of a pioneering and diverse international organisation, and use your talents to make a real difference to people's lives and help shape the future of the regions we invest in.

At EBRD, our Values – Inclusiveness, Innovation, Trust, and Responsibility – are at the heart of how we work. We bring these to life through our Workplace Behaviours: listening well and speaking up, collaborating smartly, acting decisively with full commitment, and simplifying to amplify our impact. These principles shape our culture and define our success. We seek individuals who not only share these values but are also committed to embedding them in their daily work, fostering a positive and high-performing environment.

The EBRD environment provides you with:

* Varied, stimulating and engaging work that gives you an opportunity to interact with a wide range of experts in the financial, political, public and private sectors across the regions we invest in. * A working culture that embraces inclusion and celebrates diversity. Our workforce reflects a broad range of backgrounds, perspectives, and experiences, bringing fresh ideas, energy, and innovation and enhancing our ability to serve our clients, shareholders, and counterparties effectively. * We offer hybrid and flexible working arrangements and believe we operate at our best when collaborating 3 days a week in person (minimum) * An environment that places sustainability, equality and digital transformation at the heart of what we do. * A workplace that prioritises employee wellbeing and provides a comprehensive suite of competitive benefits.

Diversity is one of the Bank’s core values which are at the heart of everything it does. As such, the EBRD seeks to ensure that everyone is treated with respect and given equal opportunities and works in an inclusive environment. The EBRD encourages all qualified candidates who are nationals of the EBRD member countries to apply regardless of their racial, ethnic, religious and cultural background, gender, gender identity, sexual orientation, age, socio-economic background or disability.

Please note, that due to the high volume of applications received, we regret to inform you that we are unable to provide detailed feedback to candidates who have not been shortlisted (for further consideration).

Job Segment:Testing, Developer, Cloud, Engineer, Information Technology, Technology, Engineering

Application timeline

This vacancy was first listed on 3 August 2026, 2 days ago.

No closing date is published in the source feed for this position. EU vacancies typically remain open for four to eight weeks; check the official vacancy notice for the cut-off date and time.

Last verified against the EU Careers feed on 6 August 2026.

Where to learn more

For headcount, mission, and other open vacancies at EBRD see the EBRD institution page; for the cost of living, correction coefficient, and other postings in Sofia see our Sofia location page.

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