Junior Software Engineer in London

About our team

Our Product Team works collaboratively to design and deliver impactful digital solutions for our clients. Based across our London and Cardiff offices, the team combines strong product thinking with technical expertise to solve complex challenges, creating scalable, user-focused digital experiences that deliver real value to our clients.

We are better together. Each one of us has a role in making iCrossing an energizing and inspiring place to work.

About this job

As a Junior Software Engineer at iCrossing, you’ll support the development of innovative, immersive digital solutions for our clients. Working closely with senior engineers and our product team, you’ll contribute to core digital projects across a variety of stakeholders and business cases, gaining exposure to the full development lifecycle—from initial build through to delivery.

You’ll help write clean, reusable, and well‑documented code, with guidance and code reviews to help you grow your skills in performance, scalability, and maintainability. The team leverages a modern technology stack—TypeScript, AWS, and React—to deliver impactful, scalable digital experiences.

Alongside hands‑on development, you’ll have opportunities to learn best practices, follow established workflows, and develop your technical skills through mentoring and collaboration. You’ll be encouraged to explore new technologies, ask questions, and grow into a confident engineer while contributing to high‑quality digital solutions for our clients.

This is a full‑time role and requires 2 days per week in the Cardiff or London office. You must have the Right to Work in the UK as unfortunately we are currently unable to sponsor those who require a visa.

Our Mission & Values

The iCrossing mission is to Transform Experiences. The “we” is implied but never taken for granted. This mission impacts the way we work, the way we think, the way we treat one another, and the way we evolve into what we want to be. We operate as a community of humans, and we can adapt and evolve because we are guided by values not rules. Our core values map back to our vision.

• Be Kind: lead with compassion. What you truly know about someone’s life is very little.
• Lead with Candor: know the line. Is what you say true, good, and useful?
• We Before Me: lead for others. The sum is always going to be greater than the parts.

We evolve clients for a human‑centric future - creating a better world for everyone.

Benefits

iCrossing offers a range of employee benefits including flexible working, life assurance, a monthly wellbeing allowance, charity and study days, enhanced parental pay, and much more.

Where we work

iCrossing has a global presence, but this role is UK‑based. You must have the Right to Work in the UK as unfortunately we are currently unable to sponsor those who require a visa.

Diversity & Belonging

We believe that diversity strengthens and enriches who we are, and it is important to us that our workplace is somewhere our people feel they belong and reflects every aspect of our diverse nation. Our ambition is for everyone to have an equal opportunity to succeed. Currently those from ethnic minority backgrounds are under‑represented at iCrossing and we are keen to broaden our socio‑economic diversity. We therefore encourage and welcome applications from Black, Asian, ethnic minority and lower socio‑economic backgrounds.

All disabled applicants who meet the minimum requirements of the job as set out in the job description and person specification will be guaranteed an interview if requesting to be considered under this scheme. If there’s anything we can do to make our interview process or working environment more inclusive and to meet your particular needs, please let us know.

We want to ensure our recruitment process is fair to all and attracts diverse and talented candidates. To help track our progress, we monitor the diversity of our candidates.

Contribute to digital projects by supporting development tasks from initial build through to delivery, with guidance from senior engineers to ensure code is performant, well‑documented, and reliable.

Work closely with Product Owners and the wider engineering team to understand requirements, estimate tasks, and deliver work on time and to a high standard. Share progress and flag any issues or questions early.

Collaborate with senior engineers on designing and building scalable, user‑focused digital solutions, gaining exposure to best practices in modern software development.

Write clean, testable, and maintainable code, following established coding standards and contributing to shared documentation and knowledge‑sharing within the team.

Follow and learn robust development workflows, including version control, code reviews, automated testing, and continuous integration, to help ensure features meet quality standards.

Support the use of appropriate technologies, platforms, and frameworks in client solutions, learning how technical decisions are made with guidance from experienced team members.

Assist in implementing technical designs and architectures that align with project requirements and business goals.

Stay curious and continue learning about emerging tools, technologies, and best practices, including cloud services (AWS, Azure, Google Cloud) and modern development frameworks.

We want to see your drive and enthusiasm for Engineering. In addition to this, we’re looking for someone who has the following skills and experience:

• A solid foundation in software development principles and a genuine interest in learning and improving as an engineer. You’re comfortable working with at least one modern programming language (TypeScript preferred) and are keen to develop your skills further in technologies such as AWS, Google Cloud, and React.
• A collaborative mindset and strong communication skills, with the ability to work effectively as part of a team. You’re open to feedback, enjoy learning from more experienced engineers, and are confident asking questions to deepen your understanding.
• An appreciation for clean, well‑structured code and good engineering practices. You take pride in writing readable, maintainable code and understanding the value of testing, documentation, and version control in delivering high‑quality software.
• A proactive and curious approach to problem‑solving, with an interest in modern development tools, platforms, and workflows. You’re eager to explore new technologies, stay up to date with industry trends, and apply what you learn to real‑world digital solutions.