Job Search

ResponsibilitiesDevelop and maintain responsive frontend applications using React.js.Build intuitive, user-friendly interfaces with a focus on performance and usability.Collaborate with Product Managers, UX Designers, and Backend Engineers to deliver new features.Integrate frontend applications with backend APIs and services.Work with AWS, CI/CD pipelines, and cloud-based platforms.Participate in code reviews, testing, debugging, and performance optimization.Collaborate with UX designers to ensure designs and requirements are implemented as intended.Document technical designs, workflows, and APIs.Mentor junior developers and contribute to frontend best practices.Requirements5+ years of frontend development experience.Strong expertise in React.js, JavaScript/TypeScript, HTML, and CSS.Experience with REST APIs, Git, responsive design, and frontend architecture.Familiarity with AWS, CI/CD, and backend technologies such as Node.js, Go, or Python.Strong problem-solving, communication, and teamwork skills.

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

Read less

Senior Full-Stack Developer

About the role

This is a hands-on senior position where you'll play a key role in shaping the technical direction of a growing product. You'll combine architecture and technical leadership responsibilities with active software development, working closely with the product and stakeholders.

What you'll do

Take end-to-end technical ownership of a core product, from architecture through to delivery and ongoing evolution.Help drive technical decision-making and contribute to scalable, maintainable system design.Build and maintain applications across the full technology stack, including backend services, frontend experiences, APIs, and third-party integrations.Support the transition of platform knowledge from external partners to the internal team, ensuring long-term ownership and sustainability.Establish and promote engineering best practices while mentoring and supporting other developers.Collaborate with stakeholders and end users to understand product usage, identify challenges, and translate business needs into technical solutions.Work closely with product and design teams to help shape the product roadmap and user experience.

Must have

6+ years of professional software development experience.Strong experience building and maintaining modern web applications across both frontend and backend environments.Proficiency in modern programming languages and frameworks used for full-stack development.Experience designing scalable, maintainable software systems and contributing to application architecture.Proven ability to lead technical discussions and make architectural decisions.Comfortable balancing hands-on development with technical leadership responsibilities.Experience working with APIs, integrations, and distributed systems.Familiarity with containerization technologies and cloud-based development practices.Experience working with relational databases and data modeling.

Should have

Experience with cloud platforms and modern software delivery practices, including automation, CI/CD, infrastructure management, and monitoring.Knowledge of Dutch or French, in addition to English.

Nice to have

Exposure to multiple programming languages, frameworks, or technology ecosystems.Experience working in regulated industries such as financial services, compliance, healthcare, insurance, or similar domains.Experience scaling products in a high-growth or startup environment.

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

Read less

Full Stack Developer (Contract)

Location: Remote (UK)
Contract Length: 6 Months
Day Rate: £400 per day OUTSIDE IR35
Tech Stack: C#, SQL, Vue.js

Overview

We are seeking an experienced Full Stack Developer to support the re-engineering and modernisation of a core business platform. The successful candidate will play a key role in migrating an existing application from .NET Framework 4.1 to .NET 10, helping to improve performance, scalability, maintainability and cloud readiness.

Working within an agile development team, you will contribute across the full software development lifecycle, from architecture and design through to development, testing and deployment.

Key Responsibilities

Redevelopment and modernisation of an existing platform from .NET Framework 4.1 to .NET 10.Design, develop and maintain scalable web applications using C#, SQL Server and Vue.js.Collaborate with business stakeholders, architects and developers to define technical solutions.Refactor legacy code and implement modern development practices.Develop and consume RESTful APIs and backend services.Optimise database performance and maintain SQL Server environments.Participate in code reviews, testing and release activities.

Essential Skills & Experience

Strong commercial experience developing applications using C#.Experience with SQL Server, including:Proven experience developing front-end applications with Vue.js.Experience working on full software development lifecycle projects.Demonstrable experience modernising or upgrading legacy applications.

Desirable Skills

Experience with Microsoft Azure services.Knowledge of Azure DevOps and CI/CD pipelines.Experience containerising applications using Docker and Kubernetes.Experience with microservices architecture.Exposure to Entity Framework Core.

Ideal Candidate

Comfortable working in a fast-paced project environment.Proven track record of delivering platform modernisation projects.Able to work independently whilst collaborating effectively within a wider team.Strong attention to detail with a focus on quality and maintainability.

Technical Environment

.NET Framework 4.1 → .NET 10 MigrationC#SQL ServerVue.jsAzure (desirable)

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

Read less

We are excited to announce a fully remote opportunity with a leading financial client based in Poland. We're looking for talented Full stack engineer who are passionate about building modern web applications and have strong expertise in Java, Springboot, Microservices, React, CSS and NX Monorepo.

Key requirements:

Strong experience in Java and Spring BootHands-on expertise with microservices architectureFrontend development experience with React and TypeScriptExperience working with Nx monorepo setups and CSSMandatory experience with authentication systems such as Keycloak and OAuth2Good experience in Microfrontends.Background in building and shipping scalable applications with reusable componentsSolid understanding of SDLC processes, CI/CD automation, and deployment pipelines

This is a fantastic chance to work with a financial industry leader, contribute to cutting-edge projects, and collaborate with a global team-all from the comfort of your home.

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

Read less

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

Read less

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

Read less

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

Read less

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

Read less

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

Read less

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

Read less