Fullstack Software Engineer Jobs in UK with Visa Sponsorship MLabs is looking for a seasoned Fullstack Software Engineer to work for a cutting-edge London-based AI technology startup. For talented software developers with expertise creating scalable online applications using cutting-edge technologies like TypeScript, React, Next.js, AWS, and AI-powered development tools, this full-time position is perfect.
The chosen applicant will join a rapidly expanding engineering team that creates intelligent automation platforms for startups and multinational corporations. For eligible foreign candidates, this role offers a competitive salary, equity options, private healthcare, a corporate pension, and UK visa sponsorship.
This could be a great chance to further your software engineering career in the UK if you appreciate working with cutting-edge AI technology, creating cloud-native applications, and tackling challenging engineering problems.
Details of Fullstack Software Engineer Job:
- Job Title: Fullstack Software Engineer Jobs in London with Visa Sponsorship 2026
- Hiring Company: MLabs
- Location: London, England, United Kingdom
- Job Type: Full-Time
- Work Schedule: On-Site (Monday to Friday)
- Visa Sponsorship: Available for Eligible International Candidates
- Salary: Competitive Salary + Equity + Excellent Benefits
About MLabs:
MLabs is a technology recruitment and engineering company that partners with innovative startups and high-growth organizations across Europe. The organization specializes in connecting excellent engineering talent with businesses creating next-generation software, artificial intelligence, blockchain, and cloud solutions.
The client hiring for this role is an early-stage AI firm experiencing tremendous growth by delivering intelligent business automation tools that improve operational efficiency and provide meaningful business benefits for enterprises worldwide.
Overview of the Job:
The design, development, and upkeep of cutting-edge web apps that support AI-driven business automation platforms will fall within your purview as a Full Stack Software Engineer. In order to create safe, scalable, and high-performing apps, you will work with software engineers, AI experts, and product teams across both frontend and backend systems.
You will have the chance to contribute to technical architecture, develop software from the ground up, and influence products that serve thousands of business users.
Responsibilities for Fullstack Software Engineer Jobs in UK with Visa Sponsorship:
Your day-to-day responsibilities may include:
- Create scalable full-stack web applications.
- Use Next.js with React to create responsive user interfaces.
- Create backend services with contemporary APIs and TypeScript.
- Develop automation workflows driven by AI.
- Use AWS to create scalable cloud apps.
- Create a software architecture that is both safe and effective.
- Create systems for processing data with great performance.
- Combine AI services with Large Language Models (LLMs).
- Create platforms for intelligent customer involvement.
- Enhance the security, dependability, and speed of the application.
- Write code that is clear, manageable, and thoroughly documented.
- Work together with technical teams, designers, and product managers.
- Take part in technical planning and code reviews.
- Investigate production problems and put long-term fixes in place.
- Continue to enhance the user experience and program quality.
Required Qualifications:
To be considered for this position, applicants should have:
- Bachelor’s degree in Computer Science, Software Engineering, or a related field (or equivalent practical experience).
- Minimum 3 years of professional software development experience.
- 6+ years preferred for senior-level candidates.
- Strong knowledge of TypeScript and JavaScript.
- Professional experience with React.js.
- Experience using Next.js is highly desirable.
- Solid understanding of software architecture and system design.
- Strong knowledge of algorithms and data structures.
- Experience building scalable production applications.
- Familiarity with cloud platforms such as AWS.
- Excellent analytical and problem-solving skills.
- Strong communication and teamwork abilities.
Preferred Skills:
Candidates with experience in the following technologies are encouraged to apply:
- Next.js
- AWS Cloud
- OpenSearch
- ClickHouse
- Trigger.dev
- Datadog
- Docker
- Kubernetes
- REST APIs
- GraphQL
- AI Agents
- OpenAI APIs
- RAG Applications
- LLM Integrations
- CI/CD Pipelines
- Distributed Systems
Experience working in startup environments or rapidly growing technology companies will be considered an advantage.
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Benefits of Fullstack Software Engineer Jobs in UK:
- Competitive Salary and Performance Rewards: Fullstack Software Engineer jobs in the UK offer competitive annual salaries ranging from £70,000 to £110,000, with many employers also providing annual performance bonuses, stock options, and salary reviews based on technical expertise and business contributions.
- UK Visa Sponsorship for International Professionals: Many leading UK technology companies sponsor Skilled Worker Visas for qualified software engineers, making it easier for international candidates to relocate, work legally, and build long-term careers in the United Kingdom.
- Comprehensive Healthcare and Financial Benefits: Employees often receive private medical insurance, dental coverage, company pension contributions, paid annual leave, sick pay, and additional wellness programs that support both personal health and financial security.
- Career Growth with Modern Technologies: Engineers gain hands-on experience with cutting-edge technologies such as TypeScript, React, Next.js, AWS, Artificial Intelligence, Large Language Models (LLMs), cloud computing, and scalable software architecture, helping accelerate long-term career development.
- Work on High-Impact Global Software Projects: Fullstack Software Engineers collaborate with talented teams to build innovative applications, AI-powered platforms, and enterprise software solutions used by startups, global businesses, and Fortune 500 companies across multiple industries.
- Excellent Professional Development Opportunities: Employers frequently invest in employee growth through technical training, certification programs, mentorship, conference attendance, and opportunities to advance into senior engineering, technical leadership, or software architecture roles.
Work Environment:
This is a full-time on-site role located in Piccadilly, London.
The engineering team values collaboration, innovation, rapid product development, and continuous learning. Engineers work closely together to solve complex technical challenges while delivering production-ready software that supports business growth.
Recruitment Process:
The recruitment process generally includes:
Initial HR Interview
A discussion about your professional background, technical experience, and career objectives.
Technical Assessment
Qualified candidates may complete:
- Software engineering interview
- System design interview
- Practical coding exercise
- AI-focused development assessment
Final Interview
The final stage focuses on technical discussions, team collaboration, project ownership, and compensation.
Visa Sponsorship:
MLabs welcomes applications from qualified international candidates. UK visa sponsorship is available for applicants who meet the company’s hiring requirements and UK immigration eligibility criteria.
Salary:
The estimated salary for a Fullstack Software Engineer in London typically ranges from £70,000 to £110,000 per year, depending on experience, technical expertise, and overall qualifications. Senior engineers or candidates with strong AI, cloud, and system design experience may earn £120,000+ annually, with additional benefits such as equity options, UK visa sponsorship, private healthcare, dental insurance, and a company pension.
Why Join MLabs?
Working at MLabs provides the opportunity to build modern AI-powered software used by businesses worldwide. Engineers are encouraged to innovate, own technical decisions, and work with the latest technologies in cloud computing, artificial intelligence, and scalable web development.
This role is ideal for professionals seeking long-term career growth within a rapidly expanding technology environment.
Equal Employment Opportunity:
MLabs is committed to providing an inclusive workplace where all competent applicants receive equal consideration for employment regardless of age, handicap, gender, ethnicity, religion, sexual orientation, or background. Reasonable workplace accommodations are accessible during the recruitment process.
Apply for Fullstack Software Engineer Jobs in UK with Visa Sponsorship:
If you have experience in full-stack software development, cloud technologies, and modern JavaScript frameworks, this is an excellent opportunity to build your career with an innovative AI company in London. Apply today to join a talented engineering team developing next-generation software solutions while benefiting from competitive compensation, excellent employee benefits, and UK visa sponsorship opportunities.
Which programming languages are commonly required for this role?
Most employers seek experience with TypeScript, JavaScript, React, Next.js, Node.js, HTML, CSS, SQL, and cloud technologies like AWS. Knowledge of AI tools, APIs, and scalable application development is also increasingly valuable for candidates.
What qualifications improve chances of getting hired successfully today?
A Computer Science degree or equivalent practical experience, several years of software engineering experience, strong problem-solving abilities, system design knowledge, and experience with modern development frameworks significantly improve your chances of securing employment.
Are remote or hybrid working options available with employers?
Some UK employers offer remote or hybrid working arrangements, while others require full-time office attendance depending on project needs and company policies. Always review the individual job description for specific workplace expectations before applying.
