Full Stack Developer

Who we are

At Mercury, we're redefining how recruitment and staffing firms use technology. Our cloud-based SaaS platform, built on Microsoft Dynamics 365 and the Power Platform, helps businesses automate, scale, and perform at their best.

Founded in 2014, we've grown rapidly into a global organisation with teams across the UK, US, and Australia, trusted by more than 100 customers and 8,000 users. Our growth is powered by innovation and driven by people who care about doing great work. We believe in building technology that changes how the industry works and in creating an environment where talented people can do their best work every day.

What you'll do

As a Full Stack Developer at Mercury, you'll play a key role in developing and enhancing the software that underpins our market-leading SaaS platform.

You'll be joining a collaborative team made up of 4 Full Stack Developers and 2 QA Engineers, all working together to design and deliver high-quality, scalable solutions.

Working in an Agile, cross-functional environment, you'll help shape the next generation of our AI-driven products with a strong focus on backend development and Azure cloud technologies, while contributing across the full stack.

Here's what you'll be doing:

• Contribute to the design and delivery of new AI-driven features, including work with agentic AI and prompt engineering.
• Build cloud-native solutions leveraging Microsoft Azure, including Service Bus, Queues, and messaging patterns.
• Collaborate with Product Owners to translate user stories into functional, performant applications.
• Develop responsive front-end interfaces using TypeScript, JavaScript, Angular, HTML5, and CSS/SASS.
• Participate in all Agile ceremonies; sprint planning, refinement, retrospectives and contribute ideas to improve how the team works.
• Conduct code reviews and apply clean coding principles to ensure quality and maintainability.
• Design, develop, and maintain scalable web applications and RESTful APIs using C# and .NET (Core and Framework).
• Work closely with QA Engineers to ensure all deliverables meet performance, security, and quality standards.

What we're looking for

You'll be someone who thrives in a collaborative, fast-moving environment and takes pride in writing clean, efficient, and scalable code. You'll bring strong technical capability alongside the curiosity and mindset to help drive innovation.

We're looking for:

• Proven experience as a Full Stack Developer, with strong backend expertise in C# / .NET (Core and Framework).
• Solid understanding of Azure Cloud Services (Service Bus, Queues, Message Broadcasting).
• Experience building RESTful APIs using ASP.NET Web API.
• Proficiency with front-end technologies: JavaScript/TypeScript, Angular or AngularJS, HTML5, CSS3/SASS.
• Familiarity with source control systems (Git / TFVC) and Azure DevOps.
• Understanding of unit testing frameworks (MSTest, NUnit) and mocking techniques.
• Experience working within an Agile/Scrum environment - ideally as someone who champions continuous improvement and advocates for Agile principles.
• Solution-focused with strong critical thinking and analytical skills, able to assess challenges logically and recommend practical approaches.
• A natural collaborator who communicates clearly and contributes positively to team culture.

Bonus points for:

• Experience with AI agents, prompt engineering, or conversational AI.
• Knowledge of microservices and distributed systems.
• Experience with CI/CD pipelines, OAuth 2, and SOLID principles.
• Familiarity with Microsoft Dataverse, Dynamics 365, or the Power Platform.

Why Mercury

At Mercury, we pride ourselves on fostering a vibrant company culture that strikes the perfect balance between professionalism and a modern, enjoyable work atmosphere. Our commitment to employee well-being and growth sets us apart. Here's what you can expect when you join our team:

Healthy Work-Life Balance: Hard work is essential, but we understand that it doesn't mean endless hours. Unsociable work schedules are not the norm here. We believe in productivity and not burnout.

Agile and Empowered: Our commitment to Agile and Scrum methodologies empowers our developers. From top management down, everyone understands the importance of efficient processes and collaboration.

Flexible Environment: We embrace flexible working arrangements. Whether it's remote work or flexible hours, we trust our employees to find the balance that suits them best.

Open Communication: Transparency is key. We encourage open dialogue, active listening, and constructive feedback. Your voice matters.

Gratitude and Autonomy: We appreciate hard work and celebrate achievements. You'll have the autonomy to make an impact and contribute meaningfully to our success.

Accessible Leadership: Our leadership team is approachable and supportive. You'll find guidance and mentorship readily available.

Equality and Inclusion: We champion diversity and equality. Everyone deserves respect, fairness, and equal opportunities.

Investment in Growth: We provide training and career growth opportunities. Don't just take our word for it, our team members' testimonials speak volumes.

What we offer

• Competitive salary
• Great learning and development plan
• Microsoft certifications paid for and supported by Mercury
• Permanent Health Insurance (PHI)
• Health Cash Plan
• Critical Illness Cover
• Electric Car Vehicle Scheme
• 4% Employer Pension Contribution
• 25 days holiday per year
• 1 full extra day "free holiday" on your Birthday
• Free parking
• Buy/sell holiday scheme
• Increased holiday entitlement based on length of service

Location

At Mercury, we believe in the power of face-to-face collaboration. That's why we encourage our team members to join us at our Coleshill office 2 days per week (ideally Monday and Tuesday). However, we're all about flexibility, so we support remote work the remaining days if that's your preference.