Software engineers

Software Engineers
CGI —London
- Full-time
- Java
- AWS
- C++
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Software Test Engineers
Leonardo UK Ltd —Luton
- £55,000 - £65,000 a year
- Full-time
- Hybrid work
- Windows
- Analysis skills
- Communication skills
- Flexible schedule
- Referral programme
Python Software Developer
Consilience Group —London
- £55,000 - £95,000 a year
- Full-time
- Computer Science
- English
- AWS
IT & Software Systems Engineer
Leidos —Remote
- £47,600 - £61,000 a year
- Full-time
- Remote
- Engineering
- Bachelor's degree
- Organisational skills
- Annual leave
- Work from home
Software Engineer
Secret Intelligence Service —London
- £64,005 - £70,791 a year
- Full-time
- Remote
- Azure
- Oracle
- Java
- Annual leave
Junior Application Software Developer
Leidos —Leominster
- £47,600 - £61,000 a year
- Full-time
- Computer Science
- Engineering
- C++
- Annual leave
DevOps Engineers
CGI —London
- Full-time
- DevOps
- Java
- Linux
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Software Engineer (All Levels), United Kingdom
KoBold Metals —London
- £120,000 - £210,000 a year
- Full-time
- Remote
- System design
- AWS
- Travel
Junior Full Stack Software Engineer
Informed Solutions —London
- Hybrid work
- Azure
- Java
- AWS
- Gym membership
- Referral programme
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Research Engineer, Machine Learning (RL Velocity)
Anthropic —London
- £370,000 - £630,000 a year
- Hybrid work
- Bachelor's degree
- Machine learning
- Communication skills
- Flexible schedule
Cloud Engineers
CGI —London
- Full-time
- Azure
- Windows
- Java
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Software Engineer
Baker Hughes —Cramlington
- Full-time
- Remote
- Azure
- Engineering
- Bachelor's degree
- Flexible schedule
- Life insurance
Software Engineer
Longshot Systems Ltd —London
- Full-time
- Hybrid work
- English
- Java
- Master's degree
- Gym membership
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IT Support Engineer
SMG Business Solutions Ltd —East London
- £31,000 - £35,000 a year
- Full-time
- Windows
- Microsoft Office
- Analysis skills
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2d
Staff+ Software Engineer, Developer Productivity
Anthropic —London
- £325,000 - £390,000 a year
- Hybrid work
- Bachelor's degree
- Software development
- APIs
- Flexible schedule
QA Engineer / Software Tester – Manual & Automation Testing(EQUITY ONLY)
HolistiQ Holdings —Remote
- £24,420.00 - £45,611.95 a year
- Full-time
- Remote
- Azure
- Java
- SQL
- Profit sharing
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3d
1st Line IT Support Engineer
Cascade Ltd —Norwich
- £27,040 a year
- Full-time
- Customer service
- Travel
- Organisational skills
- Free parking
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12d
Anthropic Fellows Program
Anthropic —London
- £2,310 - £4,300 a week
- Part-time
- Remote
- Master's degree
- Maths
- Bachelor's degree
- Flexible schedule
Crypto Software Developer (C++, Python)
J.K. Barnes —London
- £200,000 - £350,000 a year
- Computer Science
- Engineering
- C++
Java Software Engineer
Leidos —Ham
- £47,600 - £61,000 a year
- Full-time
- Java
- C++
- Scripting
- Annual leave
- Work from home

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CGI -
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Job details

Permanent | Full-time

Benefits

Company pension

Qualifications

Elasticsearch
Cloud infrastructure
Ansible
Cucumber (software testing tool)
Java
Bash (Unix shell)
AWS
C++
JavaScript
Terraform
Apache
Vue.js
Jenkins
GitLab
Python

Full job description

CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named one of the ‘World’s Best Employers’ by Forbes magazine. 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.

CGI’s Space, Defence and Intelligence business unit, focuses primarily on the delivery of contemporary and innovative technical solutions for the government agencies most challenging problems. We work, build, and operate bespoke, technically complex, mission-critical systems which help our clients keep us all safe and secure. We are currently looking for an experienced software engineers to join our cross-functional team who, in partnership with our clients, will help define, guide and assure the delivery of integrated solutions. The role offers fantastic opportunities to work within an interesting and highly rewarding environment. We are heavily committed to developing our members and provide excellent learning and development opportunities to ensure that your knowledge and skills keep pace with the evolving technology landscape. We engender a culture of innovation, collaboration and ownership; highly motivated self-starters thrive within our organisation. Although we would like candidates to have all the skills we need, we would consider high quality individuals who meet most of the criteria.

Due to the secure nature of this project, this role requires candidates to either already hold, or be eligible to obtain, a high level of UK Security Clearance. To meet the eligibility criteria for this clearance, applicants must be sole British nationals, have been resident in the UK for the past 10 years, and must not have spent more than 28 consecutive days outside the UK within the last five years. Individuals who do not currently hold clearance are still encouraged to apply and will be considered both for this position and for other suitable opportunities within CGI where appropriate.

This role is primarily based on a secure client site and requires attendance on site five days per week due to the sensitive nature of the work and the systems involved. While the position is predominantly site-based, there may be occasional flexibility where business needs and security constraints allow. Any such arrangements would be agreed in advance with the project team.

Your future duties and responsibilities

We are seeking a Software Engineer to join our team and contribute to the development of a cutting-edge projects supporting high-value, mission-critical operations. This is an opportunity to work on innovative software projects where your technical decisions will directly influence the performance, resilience, and security of systems used in real-world operational environments.

In this role, you will be involved end-to-end in the design, development, and delivery of advanced software capabilities. You will help shape and implement new features, optimise existing functionality, and drive improvements that enhance system stability, scalability, and usability.

Your work will include the configuration and integration of software components, maintenance of complex deployment environments, and supporting changes to live systems to ensure continuous and secure service delivery.

You will collaborate closely with technical experts, architects, and stakeholders to solve challenging problems using innovative and analytical approaches. We are looking for candidates who are not only strong technically but who bring a proactive, positive problem-solving attitude, and who can adapt to evolving client needs with professionalism and creativity. You will thrive in this role if you enjoy working on high-impact solutions that require both precision and imagination.

Required qualifications to be successful in this role

We are looking for Software Engineers with experience in one or more of the following technologies. We welcome applicants who bring depth in a particular language or specialism (e.g., Java-focused, C++-focused, Python-focused), as well as those with broader full-stack expertise.

Programming Languages:

Java
Python
RUST

Frontend Frameworks:

Vue.js (or similar modern JavaScript frameworks)

Scripting & Automation:

Bash
Ansible

DevOps & CI/CD:

Jenkins
GitLab CI/CD
Terraform

Cloud & Infrastructure:

AWS (or equivalent cloud platforms)

Testing & Quality:

Cucumber
SonarQube

Monitoring & Logging:

ELK Stack (Elasticsearch, Logstash, Kibana)
Grafana

Dataflow & Integration:

Apache NiFi

We don’t expect candidates to know everything on the list. Experience across multiple areas is desirable, but most important is a strong foundation in software engineering, the ability to learn quickly, and a willingness to contribute across the technology stack as required.

#LI-JS2

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

software engineers – all levels jobs

Software Engineers

Software Test Engineers

Python Software Developer

IT & Software Systems Engineer

Software Engineer

Junior Application Software Developer

DevOps Engineers

Software Engineer (All Levels), United Kingdom

Junior Full Stack Software Engineer

Research Engineer, Machine Learning (RL Velocity)

Cloud Engineers

Software Engineer

Software Engineer

IT Support Engineer

Staff+ Software Engineer, Developer Productivity

QA Engineer / Software Tester – Manual & Automation Testing(EQUITY ONLY)

1st Line IT Support Engineer

Anthropic Fellows Program

Crypto Software Developer (C++, Python)

Java Software Engineer

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