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We are hiring a Senior UI Developer to join a leading banking client working on a greenfield electronic trading platform within their Fixed Income technology team.

This is a hands-on development role building a next-generation eTrading application used by front office traders and sales teams to price, quote, and execute trades in real time.

London (Liverpool Street) | Hybrid (50% office)
💰 Up to £900-1000 per day (Inside IR35)
📅 12-month contract

They're looking for someone with:

Strong React + AG Grid experience building trading UIsSolid Java backend Front office eTrading / Fixed Income or FX backgroundExperience with low-latency systems & RFQ workflows

It's a hands-on build role (not managerial) on a brand-new platform, working closely with a lead developer.

If this sounds of interest, please apply and I'll come back to you with full details.

GCS is acting as an Employment Business in relation to this vacancy.

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Job Description: Description:

Responsibilities:
* Creation, management and operation of a diverse set of Dev-Ops-related tools, processes, paradigms and technologies that enable the creation and ongoing operation of the Signify IoT Platform.
* Focus on the creation of horizontal tools, technologies and best-practices that enable and support all the IoT Platform engineering teams to build, debug, test, release, manage and secure the IoT Platform's modern, microservices-based cloud infrastructure.
* Collaborate in defining the methodologies and ways-of-working that will enable our fast-paced engineering teams to flourish as we collectively build-out the IoT Platform. You will help promote and implement best practices and supporting tools/technologies for source control management, CI and CD architectures, performance, SLAs, security, audit and monitoring that will be used by every engineer within the IoT Platform organization.
* Define common frameworks and software libraries, in various programming languages, that support the creation of efficient, scalable and highly available microservice-based architectures.
* Support with the management of the running IoT Platform system architecture. You will troubleshoot issues and identify areas for continuous improvement with a particular emphasis on quality, performance and security.
* Work closely with architects and technical product managers and other members of your team to translate overall system architecture and product requirements into well-designed, implemented and tested software solutions.
* Work in an Agile environment to deliver high-quality software in an incremental manner.
* Help promote the adoption of best-in-class software engineering practices, frameworks, and tools. You are providing guidance and feedback to other software developers.

Experience:
* B.Sc. in Computer Science or related Engineering is required, a Master's degree is desirable
* 8+ years of proven, hands-on track-record as a software engineer, focused on cloud-based systems
* Mastery of a variety of programming languages - at least Java, Python, but knowledge of Golang or JavaScript (NodeJS) are desirable. You must have strong Java Development skills, preferably with Ver. 1.8
* Proven track record developing cloud-based services (SaaS) and platforms (PaaS)
* Proven hands-on in-depth experience of AWS is required, both in terms of traditional technologies (e.g. EC2, S3, DynamoDB, RDS, …) as well as more recent cutting-edge paradigms (e.g. Lambda, API Gateway, Fargate, …).
* Proven experience of developing microservices and complex microservice-based platform architectures
* Excellent understanding of distributed systems, designing for scalability, performance and availability
* Experience of establishing non-functional best-practices and deploying supporting technologies for improving platform security (including audit) and reliability (latency, availability, scalability)
* Knowledge of distributed network architectures and network security is required
* Good knowledge of data persistence technologies including relational databases and no-SQL solutions
* Excellent interpersonal and technical communication with peers, and non-peers alike, with a can-do attitude
* 3+ years in teams applying modern agile software development practices #LI-FM

GCS is acting as an Employment Business in relation to this vacancy.

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GCS is acting as an Employment Business in relation to this vacancy.

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Job Title: Technical Support Engineer

Location: Dublin, Ireland (Hybrid)
Contract Duration: 11-Month Contract

Role Overview

We are seeking a Technical Support Engineer to deliver exceptional customer support while resolving technical issues related to a cloud-based enterprise platform. This role is customer-facing and requires strong troubleshooting skills, technical aptitude, and the ability to communicate clearly with users at all levels.

The successful candidate will develop in-depth knowledge of the platform and associated cloud technologies, follow best practices in case management, and work collaboratively with internal experts to resolve complex technical issues while maintaining high customer satisfaction.

Key Responsibilities

Provide high-quality technical support to customers via phone, video conferencing, and written communication.Troubleshoot and resolve technical issues related to platform functionality and unexpected system behaviour.Analyse logs, system data, and configuration details to identify root causes and propose solutions.Manage multiple support cases simultaneously while maintaining excellent case hygiene and documentation.Communicate effectively with customers to manage expectations and ensure a positive support experience.Collaborate with internal engineering and specialist teams to resolve complex issues.Create and maintain knowledge base articles to improve operational efficiency and enable customer self-service.Continuously upskill and stay current with platform enhancements and evolving technologies.

Technical Skills & Experience

Required

Strong troubleshooting and problem-solving skills.Ability to read and understand basic Java and/or JavaScript code.Experience with HTML, CSS, and/or XML.Working knowledge of web application architecture and components.Good understanding of relational databases (e.g., MySQL, MariaDB, Oracle).Hands-on experience using browser developer tools (Chrome DevTools, Firebug, etc.).Fundamental understanding of ITSM, ITIL, and CMDB concepts.Experience administering or supporting Linux/UNIX or Microsoft Server environments.

Qualifications

Degree in Computer Science or a related technical discipline.2+ years of customer-facing technical support experience.

GCS is acting as an Employment Business in relation to this vacancy.

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