Staff Engineer MFMx

Trustpair stops vendor fraud before it happens. Were the automated vendor validation platform protecting 400 enterprise companies worldwide. Since 2017 finance and procurement teams have used Trustpair to eliminate vendor fraud while reclaiming 90% of the time they once spent on manual checks.

As vendor fraud grows more sophisticated we stay ahead by combining deep expertise in financial crime with cutting-edge technology. AI isnt a buzzword here its embedded in everything we do. From your first week youll use AI tools to accelerate your impact with dedicated training and peer support to help you master them. Our teams have embedded AI into daily work from automating routine tasks to unlocking strategic insights. The result Work that used to take hours now takes minutes and youll spend more time on what matters.

With offices in New York Paris London and Milan were a diverse team united by a bias for action. We ship fast learn from experiments and tackle problems that matter: protecting billions in payments for companies worldwide. If you want to see your work make an immediate impact in financial security Trustpair is built for you.

Learn more about how we use AI in our everyday work.

About the role

As a Staff Engineer on our Core Evaluation team you will be a technical authority driving the evolution of our most critical asset: the fraud detection engine. This is a pivotal role where youll not only architect for scale and resilience but also spearhead the integration of LLM-based insights to rethink our evaluation process.

You will be entrusted with our most complex and ambitious projects shaping advanced solutions from ambiguous requirements. Working within a dedicated squad you will collaborate closely with your Engineering Manager Product Manager and fellow engineers to turn a strategic vision into a technical reality that further strengthens Trustpairs position as a market leader.

What youll do:

• Architect and Own: Design architect and own the technical vision for large-scale distributed systems at the heart of our platform with a focus on our complex evaluation workflows.
  
• Lead Technical Strategy: Lead complex cross-functional technical projects from conception to completion ensuring alignment with product strategy and client needs.
  
• Shape the Future: Partner with Product and Engineering leadership to build and refine the technical roadmap. You will identify key technical challenges and propose innovative solutions that drive our business forward.
  
• Drive Innovation: Champion a culture of innovation and continuous improvement. You will be directly involved in transforming the Trustpair engine by exploring and implementing new technologies with a strong focus on applying LLM-based solutions to solve complex business problems.
  
• Mentor and Elevate: Act as a technical mentor and force multiplier for engineers within your squad and across the organization promoting best practices in software architecture design and strategic thinking. Help the engineering manager drive the cultural shift to strengthen the customer focus.
  
• Ensure Operational Excellence: Promote and implement best practices for observability scalability and performance ensuring our core systems are reliable and efficient.

Whats in it for you

• High-Impact in a High-Growth Environment: Join a company with 50% business growth where tech is one of the core accelerators. Youll be building solutions for a platform with rapidly increasing usage directly influencing our success.
• Shape Our Future (Scaleup Phase): We want your voice in making the critical architectural product and organizational decisions that will define our future.
• Modern Stack & AI-Powered Engineering: Work with a clean Ruby on Rails stack state-of-the-art DevOps and managed tech debt. We are aggressively adopting AI both in our product (LLMs) and to boost your own efficiency with tools like Cursor.
• Culture of Full-Fledged Engineering Ownership: You are an engineer with a strong voice and full accountability. We empower you to drive initiatives from technical design to final impact.
• Accelerated Career Growth: Our rapid expansion creates constant and significant opportunities for career advancement skill development and taking on new leadership responsibilities.
• Collaborative & International Team: Thrive in a diverse cross-functional and international environment.

Why join Trustpair A list of our perks here!

Must Haves:

• Mission-Driven & Customer-Focused: You are passionate about solving real-world problems and are driven to connect technical solutions with customer value and business impact.
• Deep Technical Expertise: You have 8 years experience with technologies in high-throughput environments with at least 2-3 years in Ruby on Rails.
• Proven Architect: You have a proven track record of architecting building and operating complex large-scale systems particularly those with asynchronous workflows and demanding workloads.
• Observability Expert: You have hands-on experience implementing and leveraging observability tools (e.g. Datadog Prometheus Grafana) to ensure system health and performance.
• DevOps & Infrastructure Acumen: You possess a strong DevOps mindset and practical experience in scaling and tuning applications on container orchestration platforms like Kubernetes.
• Performance Master: You have deep expertise in performance analysis and optimization capable of debugging bottlenecks in application code databases (e.g. PostgreSQL) and infrastructure.
• Collaborative Leader: You have excellent communication and collaboration skills with a history of working effectively in agile teams partnering with product management and influencing technical direction without direct authority.
• Continuous Learner: You maintain a strong technical watch on the evolving ecosystem knowing how to identify and apply best practices from different communities to solve problems creatively.

Bonus Points

• Direct experience in designing building and deploying applications powered by Large Language Models (LLMs).
• Experience working in a high-growth B2B SaaS environment.
• A data-driven approach to decision-making from product analytics to application monitoring.

Recruitment Process

• First call with Aicha Talent Acquisition Manager (30 mins)
• Experience interview with Benoit CTO (1h)
• Case study on site with our Engineering team
• Coffee fit with two members of our Engineering & Product teams (30 mins)
• Cofounders interview with Alex Cofounder & MD (45 mins)

Equal Opportunity Statement

Trustpairs policy is to provide equal employment opportunity in all of our employment practices without regard to race color religion sex national origin ancestry marital status protected veteran status age individuals with disabilities sexual orientation or gender identity or expression or any other legally protected category.

Applicants for all positions in Trustpair must be legally authorized to work in the country which they are applying for or be a citizen from Schengen / EU zone. The verification of employment eligibility will be required as a condition of hire.