Senior API Engineer - AI Integration Team in Belfast
Senior API Engineer - AI Integration Team

Senior API Engineer - AI Integration Team in Belfast

Belfast Full-Time 36000 - 60000 ÂŁ / year (est.) No home office possible
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At a Glance

  • Tasks: Design and implement cutting-edge APIs for AI services and third-party integrations.
  • Company: Join Bright, a leading software company in Belfast with a collaborative culture.
  • Benefits: Enjoy competitive salary, performance bonuses, 25 days leave, health insurance, and free onsite food.
  • Why this job: Make a real impact by building innovative API infrastructure that powers essential services.
  • Qualifications: Experience in API design, C# .NET, SQL, and cloud technologies like Azure.
  • Other info: Dynamic environment with excellent career growth and mentorship opportunities.

The predicted salary is between 36000 - 60000 ÂŁ per year.

Join Bright to build cutting‑edge API infrastructure that powers accounting, payroll, tax, and AI services.

About Bright: At Bright we engineer cutting‑edge software for accounting, payroll, tax, and practice management. We build industry‑leading solutions with superior customer support.

Key Responsibilities:

  • Design and implement RESTful APIs that expose product capabilities to AI services and third‑party integrations.
  • Architect scalable, secure API infrastructure serving multiple products and consumers.
  • Establish API design standards, patterns, and best practices across the engineering organization.
  • Build production‑grade APIs using C# .NET, SQL, and Azure services.
  • Develop event‑driven architectures and asynchronous communication patterns where appropriate.
  • Ensure APIs are well‑documented using OpenAPI/Swagger standards.
  • Build and maintain a developer portal for internal and external API consumers.
  • Implement comprehensive observability including logging, monitoring, and alerting.
  • Design for reliability, fault tolerance, and graceful degradation.
  • Optimize API performance, scalability, and cost efficiency.
  • Write clean, maintainable code with thorough testing and documentation.
  • Configure CI/CD pipelines for safe, automated deployments.
  • Ensure compliance with data protection and security requirements.
  • Provide technical guidance and mentorship to other API engineers.
  • Collaborate with AI platform teams to understand consumption patterns and requirements.
  • Work with product engineering teams to expose functionality through consistent APIs.
  • Contribute to architectural decisions and technical strategy.
  • Champion API‑first thinking across the organization.
  • Lead incident response.

Qualifications:

  • Software engineering experience with a focus on API design and development.
  • Deep expertise in C# .NET for building production APIs and services.
  • Strong SQL skills including database design, optimization, and query performance.
  • Proven experience building RESTful APIs for web and mobile applications.
  • Third‑party integration experience – APIs consumed by external partners or open APIs.
  • API platform experience – infrastructure serving multiple products or customers.
  • Security and compliance awareness for sensitive data domains.
  • Azure cloud experience – Functions, API Management, Service Bus, etc.
  • Authentication & authorization expertise with OAuth 2.0, JWT, API keys.
  • Testing mindset – unit and integration testing.
  • API documentation experience using OpenAPI/Swagger and maintaining developer portals.
  • Production systems mindset covering observability, reliability, and operational excellence.
  • Architectural thinking – design for scale, security, and evolution.

Desirable Skills & Experience:

  • Experience with Supabase or similar backend‑as‑a‑service platforms.
  • Knowledge of API gateways and Enterprise Service Bus (ESB) patterns.
  • Event‑driven architecture experience – message queues, pub/sub, event streaming.
  • Understanding of GraphQL as an alternative or complement to REST.
  • DevOps/infrastructure as code experience with Terraform, ARM templates, or Bicep.
  • Knowledge of rate limiting, throttling, and quota management for API platforms.
  • API versioning strategies and managing breaking changes.
  • Understanding of how AI systems consume APIs.
  • Developer advocacy experience – excellent documentation and community.
  • Track record of mentoring engineers and establishing technical standards.

What Makes You a Great Fit:

  • API‑First Mindset: intuitively design contracts and interfaces.
  • Systems Thinking: distributed systems, failure modes, eventual consistency.
  • Security Conscious: prioritize data protection for sensitive financial data.
  • Pragmatic Approach: balance perfect solutions with shipping value quickly.
  • Commercial Awareness: understand cost implications and business outcomes.
  • Collaboration: communicate clearly with product, AI, and partner teams.
  • Ownership: manage API lifecycle – design, production, versioning, deprecation.
  • Proactive Attitude: identify opportunities, bring energy and optimism.
  • Quality Focused: deep care for design, documentation, testing, reliability.

Benefits:

  • Competitive salary
  • Performance‑based bonus
  • 25 days annual leave
  • Health Insurance
  • Company pension
  • Company events
  • Free food onsite
  • On‑site parking
  • Referral programme
  • Sick pay
  • Wellness programmes

Seniority level: Mid‑Senior level

Employment type: Full‑time

Job function: Engineering and Information Technology

Industries: Software Development

Senior API Engineer - AI Integration Team in Belfast employer: Bright

At Bright, we pride ourselves on being an exceptional employer, offering a vibrant work culture in the heart of Belfast. Our commitment to employee growth is evident through comprehensive wellness programmes, competitive salaries, and performance-based bonuses, all while fostering a collaborative environment that encourages innovation and creativity. Join us to be part of a forward-thinking team that values your contributions and supports your professional development in the exciting field of AI integration.
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Contact Detail:

Bright Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior API Engineer - AI Integration Team in Belfast

✨Tip Number 1

Network like a pro! Reach out to current employees at Bright on LinkedIn or through mutual connections. A friendly chat can give you insider info and might just get your foot in the door.

✨Tip Number 2

Show off your skills! Prepare a portfolio of your best API projects, especially those using C# .NET and Azure. When you get the chance to chat with the team, having tangible examples will make you stand out.

✨Tip Number 3

Be ready for technical challenges! Brush up on your API design and development knowledge, especially around RESTful APIs and security practices. Expect some hands-on tests during interviews, so practice coding under pressure.

✨Tip Number 4

Apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining the Bright team.

We think you need these skills to ace Senior API Engineer - AI Integration Team in Belfast

API Design and Development
C# .NET
SQL
RESTful APIs
Azure Services
OpenAPI/Swagger
Event-Driven Architecture
Authentication & Authorization (OAuth 2.0, JWT)
CI/CD Pipelines
Observability
Security and Compliance Awareness
Architectural Thinking
Developer Portal Management
Mentorship
Collaboration

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your experience with API design and development, especially in C# .NET. We want to see how your skills align with our needs, so don’t be shy about showcasing relevant projects!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you’re excited about the role and how your background makes you a perfect fit for our AI Integration Team. Let us know what makes you tick!

Showcase Your Technical Skills: When filling out your application, be sure to mention your experience with RESTful APIs, SQL, and Azure services. We love seeing specific examples of your work, so feel free to include links to any projects or documentation you've created.

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates from our team!

How to prepare for a job interview at Bright

✨Know Your APIs Inside Out

Make sure you’re well-versed in RESTful API design and development, especially using C# .NET. Brush up on your SQL skills too, as they’ll be crucial for discussing database design and optimisation during the interview.

✨Showcase Your Architectural Thinking

Be prepared to discuss your experience with scalable and secure API infrastructure. Think about examples where you've implemented best practices or contributed to architectural decisions, and be ready to share those stories.

✨Demonstrate Your Testing Mindset

Highlight your approach to unit and integration testing. Bring examples of how you’ve ensured reliability and operational excellence in production systems, as this will resonate well with the interviewers.

✨Communicate Your Collaboration Skills

Since collaboration is key in this role, think of instances where you’ve worked closely with product teams or AI platform teams. Be ready to explain how you’ve effectively communicated technical concepts to non-technical stakeholders.

Senior API Engineer - AI Integration Team in Belfast
Bright
Location: Belfast
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  • Senior API Engineer - AI Integration Team in Belfast

    Belfast
    Full-Time
    36000 - 60000 ÂŁ / year (est.)
  • B

    Bright

    50-100
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