Senior Java Full Stack Developer

Q1 Technologies, Inc.; Glasgow; On-site; GBP 65,000 - 90,000; Full time

Job summary

Q1 Technologies, Inc. is seeking a software engineer to build and maintain scalable Java Spring Boot back-end services and front-end components using Angular/ReactJS. You will design architectures, ensure data-driven quality, and optimize systems for performance.

The role emphasizes API integration, SQL-based data handling, multithreading, and cloud exposure (AWS/GCP/Azure) with a strong focus on SDLC and modern tooling. On-site work in Glasgow is required for the role.

Qualifications

• Experience with APIs and integration between systems.
• Strong SQL skills and database tuning capabilities.
• Multithreading and concurrency in Java; ORM like Hibernate/JPA.
• Experience with SDLC and developer tooling.
• Public cloud familiarity (AWS, GCP or Azure).
• Experience with unit testing tools like JUnit and CI/CD pipelines.

Responsibilities

• Executes software solutions with Java Spring Boot and Angular/ReactJS.
• Creates production-grade code and maintains data-driven algorithms.
• Produces architecture and design artifacts for complex apps.
• Analyzes large data sets to improve software applications and systems.
• Identifies data patterns to drive improvements in code and architecture.
• Contributes to communities of practice and fosters inclusive team culture.

Skills

APIs

RDBMS

SQL

Multithreading

SDLC

Cloud platforms

JUnit/CI-CD

NoSQL (preferred)

Job description

Location: Glasgow, UK - 5 days onsite in a week

Job responsibilities

• Executes software solutions, design, development, and maintain high-quality, scalable, and efficient back-end and front-end software solutions using Java Spring Boot, Spring Batch and Angular/ReactJS.
• Creates secure and high-quality production code and maintains algorithms that run synchronously with appropriate systems
• Produces architecture and design artifacts for complex applications while being accountable for ensuring design constraints are met by software code development
• Gathers, analyzes, synthesizes, and develops visualizations and reporting from large, diverse data sets in service of continuous improvement of software applications and systems
• Proactively identifies hidden problems and patterns in data and uses these insights to drive improvements to coding hygiene and system architecture
• Contributes to software engineering communities of practice and events that explore new and emerging technologies
• Adds to team culture of diversity, equity, inclusion, and respect

Required qualifications, capabilities, and skills

• Strong background in working with APIs (especially Open API), ensuring efficient communication and integration between different systems.
• Experience working extensively with the most common RDBMS (MySQL, Oracle, or SQL Server). Experience with unit testing tools like JUnit and integrations/continuous deployment pipelines.
• Solid knowledge of SQL queries, optimization techniques, and database configuration.
• Proficient knowledge of Multithreading and Concurrency in Java. Knowledge of ORM frameworks such as Hibernate or JPA. Proven record of providing end-user support with excellent problem-solving abilities.
• Strong infrastructure knowledge required including Unix, Windows, networking and scripting.
• Proficiency in Software Development Life Cycle (SDLC) and developer tools utilization.
• Enthusiasm for learning new technologies, with a focus on public cloud platforms like AWS, GCP, or Azure
• Experience with unit testing tools like JUnit and integrations/continuous deployment pipelines.

Preferred qualifications, capabilities, and skills

• Knowledge of NoSQL databases (MongoDB, Cassandra, etc.) would be a plus.