Senior Full Stack .NET Developer

Help Our Clients Succeed - and Succeed with Them Are you passionate about turning complex challenges into elegant, scalable solutions? Ready to thrive in a fast-growing, international company that’s reshaping how global enterprises purchase IT? At Markit, we empower the world’s leading organisations by making IT procurement simpler, smarter, and more transparent.

We’re looking for a Senior Full Stack .NET Developer to join our team in Tallinn and play a key role in bridging our software development teams with business stakeholders. If you're looking to grow your career in a supportive, dynamic environment - and help Fortune 500 and Forbes Global 2000 companies succeed - we’d love to hear from you. As a Senior Full Stack Developer, you’ll design, build, and maintain modern web applications using .NET Core and React, working across the full stack - from database to architecture to frontend.

We’re in the middle of an exciting technical transformation: evolving a large, business-critical monolith into a modern, service-based ecosystem. If you enjoy improving architecture, introducing best practices, and shaping technical direction, this role offers real impact and ownership. What We’re Looking For 5+ years of experience building data-heavy web applications Strong skills in C#, ASP.NET Core, and modern JavaScript (React preferred; Blazor a plus) Solid understanding of database design (SQL or NoSQL) and ORM frameworks Experience with cloud platforms (Azure, AWS, or GCP) Familiarity with distributed systems, event-driven architecture, and infrastructure-as-code What You’ll Do Design and develop backend and frontend components using .NET Core and React Lead and contribute to architecture and system design discussions Ensure code quality through thoughtful reviews, testing, and clean design Work hands-on across the stack, including infrastructure, backend, and frontend Mentor junior developers and share best practices with the team What We Offer Real impact - your work directly improves our core business systems A focused environment with minimal meetings and high ownership A company that values openness, clarity, and technical curiosity True engineering challenges: helping transform a mature monolith into modern, distributed services If you're excited about meaningful engineering challenges, global impact, and a culture built on trust and kindness - we’d love to meet you.

Who We Are Markit is a global B2B e-procurement software company transforming how businesses purchase standard IT products. Our cloud-based platform integrates 350+ of the world’s leading IT distributors into one streamlined, real-time purchasing environment used by companies across 49 countries. Unlike traditional procurement processes that rely on manual tenders and slow RFQs, Markit delivers a fully automated, end-to-end solution. We connect directly to distributor systems to provide:

Live product data Real-time availability Direct-from-distributor pricing Seamless integrations into clients’ back-end systems The result? The lowest total cost of IT purchasing and unmatched operational efficiency for enterprise clients. Our culture is built on kindness, transparency, loyalty, and professionalism. We listen with empathy, communicate with integrity, and innovate with purpose. We build long-term relationships - internally and externally - by helping our clients succeed.