Job Specifications
Haystack is working with Barclays on this opportunity!
Junior Full-Stack Engineer
Glasgow (Hybrid)
Level: Junior / Early Career
Join a team building and supporting technology that verifies client identity, suitability, and risk for corporate and investment banking onboarding. You'll contribute to a streamlined, high-performance onboarding ecosystem powered by AI-assisted, data-driven decisioning.
What you'll do
Design, develop, and improve software across web and service layers (Java + modern frontend).
Deliver high-quality, scalable, maintainable code, with strong unit testing and secure coding practices.
Collaborate with product, design, and engineering teams to define requirements and ship features.
Participate in code reviews, knowledge sharing, and continuous improvement initiatives.
Stay up to date with industry trends and help evolve engineering practices and tooling.
Core Stack & Skills
Programming: Core Java, OOP, Collections, multithreading/concurrency, exception handling, JVM concepts, Spring (Boot/Batch/Integration), SQL.
Integration: Microservices, RESTful APIs, design patterns.
UI/UX: Angular or React, HTML, CSS, JavaScript.
Nice to have
DevOps: ELK / AppDynamics (or similar), CI/CD, Docker, Kubernetes, load balancing, scalable app design.
Data & Messaging: SQL (joins, indexing, transactions), NoSQL (MongoDB / Cassandra), query optimisation, Kafka / Solace.
Caching: Concepts such as priming, eviction, cache misses, consistency/staleness, MRU.
How you'll be assessed
You'll be evaluated on technical depth as well as strengths in:
Risk and controls
Change and transformation
Business acumen and strategic thinking
Modern digital and technology practices
Impact & Expectations
Deliver to high standards and timelines while driving continuous improvement.
Apply analytical judgment and technical experience to resolve complex problems.
Communicate clearly, influence decisions, and collaborate across teams.
Take ownership of risk and controls, embedding new processes and policies where needed.
Demonstrate integrity, service, excellence, and strong stewardship - with a growth mindset.
About the Company
Discover Haystack - the UK's fastest growing tech hiring marketplace.
Driven by our award-winning mobile app and web platform, Haystack connects active and passive tech talent directly with hiring managers and talent acquisition teams.
We're trusted by over 150,000+ UK-based techies, working in Software Engineering, Data, Design, DevOps, Cloud, Tech Management, Testing, Product & Delivery, Architecture and more.
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