Senior Biztalk Developer

We are seeking a highly experiencedSenior BizTalk Developer to join our team and play a key role in delivering robust, secure, and scalable integration solutions for enterprise-level applications within the public sector. This is an exciting opportunity to contribute to impactful projects that support critical services and infrastructure.

• Lead the full software development lifecycle: design, development, testing, deployment, and maintenance.
• Collaborate with business analysts and cross-functional teams to translate requirements into maintainable solutions.
• Design and implement BizTalk-based integrations in line with departmental and ISO:27001 standards.
• Participate in architectural discussions and contribute to strategic system improvements.
• Maintain and optimize applications to meet performance and functional specifications.
• Provide user support, documentation, and assistance tools.
• Execute unit and integration testing, and support continuous integration and automated testing practices.
• Perform root cause analysis and resolve incidents effectively.
• Foster a culture of collaboration and continuous improvement across teams.

• Bachelor's Degree in Computer Science, Information Systems, or other related field, or equivalent work experience

• Excellent client-facing skills
• People management skills - introducing and building ways in which people can learn from each other, encouraging mentoring and the transfer of knowledge by designing and delivering learning interventions
• Team work and emotional intelligence
• Good self-management – continuous performance is both an objective and a mind-set
• Has an innovative approach – a bold thinker and doer, matching creativity with vigilance
• Experience of introducing new concepts or strategies that significantly improve or revise the way business is done through to implementation.
• Excellent communication and presentations skills

• 7+ years of professional experience in software development.
• Proven experience working within the public sector.
• Strong expertise in BizTalk Development, including:
  • Designing, developing, testing, and documenting BizTalk integration solutions.
  • Building and maintaining BizTalk Maps, orchestrations, and Business Rules Engine (BRE).
  • Administering BizTalk System and Security configurations.
  • Monitoring and troubleshooting BizTalk environments across Development, UAT, and Production.
  • Deploying and migrating BizTalk applications across versions.
• Proficiency in .NET, HTML, CSS, XML, XSLT, and JavaScript.
• Strong SQL skills including writing complex queries and stored procedures for MSSQL Server.
• Experience with Windows Communication Foundation (WCF) and REST APIs.
• Familiarity with various transport protocols: SOAP, S/MIME, HTTP/s, File, FTP/s, SFTP, POP3, SMTP.

At Expleo, we are committed to providing a competitive salary and substantial benefits offering with unique wellbeing, financial and employee recognition programmes.

We pride ourselves on our diverse and inclusive culture and offer a variety of family friendly policies and enhanced leave to help you achieve a healthy work life balance.

By providing significant learning and development opportunities, we encourage individual growth and success throughout your career with us.

• Collaborative working environment – we stand shoulder to shoulder with our clients and our peers through good times and challenges
• We empower all passionate technology loving professionals by allowing them to expand their skills and take part in inspiring projects
• Expleo Academy - enables you to acquire and develop the right skills by delivering a suite of accredited training courses
• Competitive company benefits such as medical and dental insurance, pension, life assurance, employee wellbeing programme, sports and social events, birthday hampers and much more
• Always working as one team, our people are not afraid to think big and question the status quo.

"We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation or age".

At Expleo, we understand that many people experience impostor syndrome throughout their lifetime, please do not let this discourage you from applying for this role. Our Talent Acquisition Team welcomes all CV's and will consider your application in line with the values, requirements and role competencies.