Java Full-Stack Lead Developer

About Synechron:

Synechron is a leading digital transformation consulting firm dedicated to delivering innovative technology solutions within banking, financial services, and insurance. We thrive on engineering excellence, collaboration, and a passion for cutting-edge technologies.

Job Location: Sheffield (Hybrid - 3 days in the office)

About the role:

We are seeking a highly experienced (10 years ) Java Full-Stack Lead Developer with strong system architecture expertise to lead the design and delivery of scalable, distributed systems. This is a hands-on leadership role where you will define architecture, guide a globally distributed engineering team, and ensure high standards in both backend and frontend development.

Key Responsibilities

• Lead the architecture design of complex, scalable and high-availability systems

• Make critical decisions on system design, tech stack, and trade-offs

• Drive end-to-end development across backend and frontend (hands-on coding required)

• Lead and coordinate a globally distributed team across different time zones

• Establish and enforce engineering best practices, coding standards, and design principles

• Conduct design reviews, code reviews, and architecture governance

• Optimize system performance, scalability, and reliability

• Troubleshoot and resolve complex production and distributed system issues

• Collaborate with product, design, and business stakeholders globally

Architecture & System Design (Must-Have)

• Proven experience designing large-scale distributed systems

• Microservices architecture
• Event-driven architecture
• High concurrency and scalability patterns
• Strong knowledge of:
• System trade-offs (consistency vs availability, latency vs throughput)
• API design and service boundaries
• Fault tolerance and resilience design
• Experience with system decomposition and domain modelling

Backend

• Expert-level proficiency in Java (8/11/17 )

• Strong experience with Spring Boot / Spring Cloud
• Deep understanding of RESTful APIs and microservices
• Experience with ORM frameworks (Hibernate, JPA)

Frontend

• Strong hands-on experience with at least one:

• React / Vue / Angular
• Solid understanding of frontend architecture and state management
• Ability to contribute to frontend system design (not just coding)

Data & Infrastructure

• Strong experience with relational databases (Oracle / SQL Server / PostgreSQL)
• Experience with:
• Redis or distributed caching
• Message queues (Kafka / RabbitMQ)
• Familiar with:
• Docker, Kubernetes
• CI/CD and automated deployment pipelines

Excellent project management skills with a track record of successfully leading large-scale initiatives preferred

Nice to Have (Strong Differentiators)

• Experience with cloud-native architecture (AWS / Azure / GCP)
• Experience designing multi-region or global systems
• Exposure to AI systems (LLM, RAG, vector databases)
• Experience with observability (metrics, tracing, logging systems)

Diversity Statement

Synechron are proud to be an equal opportunity employer. Our Diversity, Equity, and Inclusion (DEI) initiative ‘Same Difference’ is committed to fostering an inclusive culture – promoting equality, diversity and an environment that is respectful to all. We encourage applicants from across diverse backgrounds, race, ethnicities, religion, age, marital status, gender, sexual orientations, or disabilities to apply. We offer flexible workplace arrangements, mentoring, internal mobility, learning and development programmes to support our global workforce. Empowerment and collaboration are at the core of how we operate.

All employment decisions at Synechron are based on business needs, job requirements and individual qualifications, without regard to the applicant’s gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law.