Software Full Stack SupportDeveloper

Unisys; Milton Keynes; Hybrid; GBP 55,000 - 75,000; Full time

Job summary

A leading technology firm in Milton Keynes is looking for a Senior Software Applications Engineer. In this full-time, hybrid role, you'll develop and support web applications, collaborating with cross-functional teams. You must have strong skills in C#, JavaScript, HTML, and CSS, and be eligible for UK Security Clearance. The position offers competitive compensation and a chance to work on impactful projects while mentoring others in a collaborative culture.

Benefits

Competitive compensation and benefits

Healthcare

Paid time off

Training and development opportunities

Qualifications

• Strong experience in C#, JavaScript, HTML, and CSS development.
• Proven background in web development using relevant technologies.
• Eligible for UK Security Clearance.

Responsibilities

• Provide support for larger and complex applications and project areas.
• Design and implement effective application requirements.
• Collaborate with Business Analysts to understand requirements.

Skills

C#

JavaScript

HTML

CSS

Web development

SQL Server

Azure DevOps

Agile

Job description

What success looks like in this role :

This is a full-time permanent position for a Senior Software Applications Engineer in a hybrid working model requiring on‑site attendance at least three days per week in Milton Keynes. You will play a key role in designing, developing and supporting web‑based applications for a large‑scale managed service program. This position offers the opportunity to work on complex high‑impact projects collaborating with cross‑functional teams to deliver robust, scalable solutions using modern development practices.

Candidates must be eligible to obtain UK Security Clearance (standard clearance process takes approximately 69 months).

Key Responsibilities :

• Provide Software Applications Engineering support for larger and more complex applications and project areas.
• Perform build and deployment activities for application development efforts.
• Design and implement requirements that are effective, timely and compliant with project standards.
• Configure program and test application components and technical architecture.
• Troubleshoot and resolve defects and performance‑related issues.
• Ensure compliance with coding standards through design reviews, coding and unit testing.
• Collaborate with Business Analysts to understand requirements and use cases.
• Estimate and size assigned use cases with input from the BA team.
• Independently deploy QAT or UAT environments.
• Work closely with testing teams to resolve regression and newly identified issues.
• Explore alternative solutions using structured decision‑making techniques.
• Participate in code reviews and collaborate with developers, designers and architects.
• Maintain integrity of pre‑production environments (development, test, QA, staging).
• Lead efforts in process improvement and technical automation.
• Provide regular status updates and mentor less experienced team members.

You will be successful in this role if you have :

Must‑Have :

• Strong experience in C#, JavaScript, HTML, CSS development.
• Proven background in web development using the above or similar technologies.
• Experience working with and supporting operational systems.
• Knowledge of web development patterns.
• Proficiency in Microsoft SQL Server development and scripting or similar.
• Familiarity with Azure DevOps or equivalent tools.
• Working knowledge of modern development patterns including Agile.
• Eligible for UK Security Clearance.

Preferred :

• A working knowledge of MVC framework or similar.
• Experience with other scripting or database technologies.

Additional Information

This is a full‑time permanent role.

We are unable to support sponsorship for this position.

You will be required to attend our site at least three days per week and therefore must live within commutable distance from Milton Keynes.

WE ARE PROUD OF :

Unisys was named a Leader in the 2020 Gartner Magic Quadrant for Managed Workplace Services North America.

Unisys won the 2020 Microsoft Global Partner of the Year Award in the Modern Workplace Modern Endpoint Management category.

Unisys won the 2020 Asia‑Pacific Stevie Awards in the categories of Innovation in Technology Management Planning & Implementation and Innovation in Business‑to‑Business Products & Services.

Unisys was recognized as a Top 100 Global Outsourcing Company by IAOP for the 15th consecutive year.

Unisys was named to the Forbes Americas Best Employers for Diversity 2021 list.

Unisys won the 2021 Artificial Intelligence Breakthrough Award for Best Chatbot Solution.

Unisys was named a Leader in the NelsonHall 2020 Next Generation End‑User Computing Services report.

Unisys was named one of Americas Best Employers for Women by Forbes in 2023.

WHY UNISYS :

Competitive compensation and benefits : Unisys offers competitive compensation packages and benefits to their employees including healthcare, retirement plans, paid time off and compensation.

Innovative and challenging work : Unisys is a company that is constantly pushing the boundaries of technology which means that you will have the opportunity to work on innovative and challenging projects.

Collaborative culture : Unisys has a collaborative and inclusive work culture which means that you will have the chance to work with people from diverse backgrounds and learn from their expertise.

Employee development : Unisys is committed to investing in their employees’ professional growth and development offering training and development opportunities, mentorship programs and leadership development programs.

Industry expertise : Unisys has deep expertise in various industries including financial services, healthcare, government and transportation. This means that you will have the opportunity to work on projects in your industry of interest and learn from experienced colleagues who understand the unique challenges and opportunities of your industry.

Social responsibility : Unisys is committed to social responsibility and sustainability which means that you will have the opportunity to work for a company that is making a positive impact on the world.

Unisys is proud to be an equal opportunity employer that considers all qualified applicants without regard to age, caste, citizenship, color, disability, family medical history, family status, ethnicity, gender, gender expression, gender identity, genetic information, marital status, national origin, parental status, pregnancy, race, religion, sex, sexual orientation, transgender status, veteran status or any other category protected by law.

This commitment includes our efforts to provide for all those who seek to express interest in employment the opportunity to participate without barriers. If you are a US job seeker unable to review the job opportunities herein or cannot otherwise complete your expression of interest without additional assistance and would like to discuss a request for reasonable accommodation please contact our Global Recruiting organization at or alternatively Toll Free : (Prompt 4). US job seekers can find more information about Unisys EEO commitment here.

Employment Type :

Full‑Time

Experience :

years

Vacancy :

1