Senior software integration engineers Work, Jobs (with Salaries)

Software Engineer (React)
CGI —Glasgow
- Full-time
- Hybrid work
- Continuous improvement
- JavaScript
- Travel
Quick apply
Senior Software Engineer
GitHub, Inc. —Remote
- £76,900 - £142,900 a year
- Full-time
- Remote
- Doctoral degree
- Computer Science
- Engineering
Senior Engineering Manager
GitHub, Inc. —Remote
- £76,900 - £142,900 a year
- Full-time
- Remote
- Management
- Doctoral degree
- Computer Science
Senior Software Engineer, Consensus
Anza —London
- Full-time
- Remote
- Computer Science
- Engineering
- C++
Quick apply
Principal Software Engineering Manager
GitHub, Inc. —Remote
- £111,500 - £207,100 a year
- Full-time
- Remote
- Management
- Doctoral degree
- Computer Science
Senior Systems Integration & Test Engineer
Leidos —Ham
- £61,500 - £78,800 a year
- Full-time
- Agile
- Communication skills
- Annual leave
- Work from home
Senior Software Developer
ONYX Insight —Nottingham
- AWS
- APIs
Quick apply
Senior Software Engineer
MillTechFX —London
- £85,000 - £100,000 a year
- Full-time
- Azure
- SQL
- AWS
- Annual leave
Senior System Engineer
Leidos —Remote
- £61,500 - £78,800 a year
- Full-time
- Remote
- Engineering
- Bachelor's degree
- Organisational skills
- Annual leave
- Work from home
Senior integration Test Engineer
Leidos —Ham
- £47,600 - £61,000 a year
- Full-time
- Hybrid work
- Organisational skills
- Communication skills
- Time management
- Annual leave
- Work from home
Senior Software Developer
Leidos —Leominster
- £61,500 - £78,800 a year
- Full-time
- System design
- C++
- No degree
- Annual leave
- Work from home
Senior Software Engineer
Vladimer Avdalov Technologies Ltd —Remote
- £65,000 - £110,000 a year
- Full-time
- Remote
- English
- AWS
- Bachelor's degree
- Work from home
Quick apply
Senior Software Engineer - Engineering Workflow and CI
Mozilla —Remote
- £65,000 - £87,000 a year
- Remote
- Data analysis skills
- SQL
- AWS
- Employee assistance programme
- Referral programme
Senior Software Engineer, Localization (Calibration)
AeroVect —London
- Full-time
- Remote
- Doctoral degree
- Computer Science
- Master's degree
Technical Architect
Anthropic —London
- £180,000 - £225,000 a year
- Hybrid work
- Master's degree
- Bachelor's degree
- Travel
- Flexible schedule
14d
Senior Embedded Software Engineer
Leidos —Leominster
- £61,500 - £78,800 a year
- Full-time
- System design
- C++
- No degree
- Annual leave
- Work from home
Senior Software Engineer (Product)
Stora —Belfast
- From £75,000 a year
- Full-time
- Remote
- Master's degree
- JavaScript
- Mentoring
- Annual leave
- Work from home
Senior Software Engineer
A&S Group —East London
- £45,384.23 - £104,234.22 a year
- Full-time
- Azure
- Java
- AWS
Quick apply
3d
Software Engineer
Fanvue —London
- £80,000 - £115,000 a year
- Full-time
- Remote
- System design
- Master's degree
- JavaScript
- Annual leave
- Gym membership
System Integration & Test Engineer/ Senior System Integration & Test Engineers (Multiple Roles)
General Dynamics Mission Systems - United Kingdom —Blackwood
- £36,000 - £60,000 a year
- Full-time
- Military
- Laboratory experience
- Travel
Quick apply

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Software Engineer (React)

CGI -
Glasgow

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Job details

Permanent | Full-time

Benefits

Company pension

Qualifications

CSS
React
Git
Responsive web design
Application development
Continuous improvement
JavaScript
REST
APIs
Debugging
HTML

Full job description

At CGI, you will play a key role in shaping intuitive, high-performing digital experiences that deliver real value to clients and end users. As a React Developer, you will contribute to building scalable front-end solutions that support business transformation and innovation across industries. Working within a collaborative and forward-thinking environment, you will have the opportunity to take ownership of your work, contribute creative ideas, and help deliver impactful outcomes. CGI empowers you to grow your expertise, work with modern technologies, and make a meaningful difference while being supported by a strong, inclusive team culture.

CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK ‘Best Employer’ by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you’ll be part of an open, friendly community of experts. We’ll train and support you in taking your career wherever you want it to go.

Due to the secure nature of the programme, you will need to hold UK Security Clearance or be eligible to go through this clearance. Our teams operate within a flexible hybrid working model, however on-site requirements vary by project, so the ability to travel as required to meet client needs is essential. Initially the majority of this work will need 1/2 days a week on site in Glasgow.

Your future duties and responsibilities

In this role, you will design, build, and enhance modern web applications using React, contributing directly to solutions that drive client success. You will take ownership of key features and components, working closely with designers, backend engineers, and product teams to translate requirements into scalable, high-quality code. You will be encouraged to deepen your technical expertise, share knowledge, and continuously improve development standards while contributing ideas that shape how solutions are delivered.

You will play an important role in balancing delivery and technical development, taking responsibility for your work while being supported in progressing toward more senior responsibilities.

Develop responsive, scalable applications using React.js
Build reusable components and front-end libraries
Collaborate within cross-functional agile teams
Integrate front-end solutions with APIs and backend services
Improve application performance, accessibility, and usability
Review code quality through peer reviews and best practices
Troubleshoot technical issues effectively
Learn modern tools, frameworks, and approaches

Required qualifications to be successful in this role

You will bring hands-on experience in React development and modern JavaScript, with the ability to deliver high-quality front-end solutions. You should be comfortable taking ownership of your work while continuing to grow your technical depth within a collaborative team environment.

You should have commercial experience developing applications using React.js
Strong proficiency in JavaScript (ES6+) and core front-end principles
Experience with HTML5, CSS3, and responsive design techniques
Familiarity with RESTful APIs and integration patterns
Proven ability to write clean, maintainable, and testable code
Experience using Git and modern development workflows
Understanding of debugging, performance optimisation, and best practices
Ability to collaborate effectively and contribute to continuous improvement

#LI-JW1

Together, as owners, let’s turn meaningful insights into action.

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because…

You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.

Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.

You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

Come join our team—one of the largest IT and business consulting services firms in the world.

Quick apply

Refine Your Search

senior software integration engineers jobs

Software Engineer (React)

Senior Software Engineer

Senior Engineering Manager

Senior Software Engineer, Consensus

Principal Software Engineering Manager

Senior Systems Integration & Test Engineer

Senior Software Developer

Senior Software Engineer

Senior System Engineer

Senior integration Test Engineer

Senior Software Developer

Senior Software Engineer

Senior Software Engineer - Engineering Workflow and CI

Senior Software Engineer, Localization (Calibration)

Technical Architect

Senior Embedded Software Engineer

Senior Software Engineer (Product)

Senior Software Engineer

Software Engineer

System Integration & Test Engineer/ Senior System Integration & Test Engineers (Multiple Roles)

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