Lead Software Engineer in Basildon

As a leading financial services and healthcare technology company based on revenue, SS&C is headquartered in Windsor, Connecticut, and has 27,000+ employees in 35 countries. Some 20,000 financial services and healthcare organizations, from the world's largest companies to small and mid-market firms, rely on SS&C for expertise, scale, and technology.

SS&C is leading the way. We continue to look for today's and tomorrow’s brightest talent, those who embody a spirit to improve not only their lives, but those around them. From college students to seasoned and experienced professionals, we encourage you to apply. SS&C prides itself on hiring diverse, honest, dynamic individuals who value collaboration, accountability, and innovation.

This role offers the opportunity to be part of the core engineering team, driving the technical rewrite of a large monolithic system into a modern microservices architecture. You will influence development frameworks, coding standards, and engineering best practices across the project teams. The position offers exposure to complex technical challenges and close collaboration with experienced cross‑functional teams. You’ll also contribute to continuous improvement initiatives while participating in a fair, structured on‑call rotation once fully skilled, supporting system stability and operational excellence.

What You Will Get To Do:

• Lead the design, development, and deployment of applications using .NET
• Collaborate with product managers, UX/UI designers, and developers to deliver solutions
• Conduct code reviews, enforce coding standards, and ensure best practices
• Drive continuous improvement in development processes, tools, and methodologies
• Manage technical risks and ensure the timely delivery of projects
• Troubleshoot and resolve technical issues across environments

On-Call Support: The development team provides out‑of‑hours on‑call assistance in 4‑hour slots, including weekends to the operations team on a rota basis. You will be part of this rota once suitably skilled and can expect up to 3 on‑call slots per week.

What You Will Bring:

• 8+ years of experience as a senior .NET software engineer
• Technical skills

• Must Have: C#, .Net 6 or later, REST, GraphQL, Docker, RabbitMQ, Postgres, OpenTelemetry
• Good to have: MassTransit, MartenDB, CQRS, Event Sourcing, Frontend development

Why You Will Love It Here!

• Flexibility: Hybrid Work Model
• Your Future: Professional Development Reimbursement, including access to SS&C University
• Work/Life Balance: Competitive holiday scheme
• Your Wellbeing: Competitive benefits designed to support the well‑being of our staff
• Diversity & Inclusion: Committed to Welcoming, Celebrating and Thriving on Diversity
• Training: Hands‑On, Team‑Customised throughout your career

We encourage applications from people of all backgrounds to enable us to bring diverse perspectives to our thinking and conversation. It’s important to us that we strive to have a workforce that is diverse in the widest sense.

Thank you for your interest in SS&C! If applicable, to further explore this opportunity, please apply directly with us through our Careers page on our corporate website.

SS&C Technologies is an Equal Employment Opportunity employer and does not discriminate against any applicant for employment or employee on the basis of race, color, religious creed, gender, age, marital status, sexual orientation, national origin, disability, veteran status or any other classification protected by applicable discrimination laws.