Software Development Engineer (SDE 3) at Tessell

<p><strong>Software Development Engineer (SDE 3)</strong><br><br><strong>About Tessell</strong><br>Tessell is a Data and AI Platform company. We provide managed data services (PaaS) across&nbsp;clouds - a multi-engine Database-as-a-Service running real production workloads at enterprise&nbsp;scale, chosen for the efficiency and control it gives enterprises over their data estate.&nbsp;<br><br><strong>The role&nbsp;</strong><br>We’re building the next generation of services and infrastructure building blocks for the AI era. Think instant provisioning, copy-on-write branching, serverless economics - designed for a world where AI agents provision and consume data infrastructure as fluidly as developers do.<br>You will own end-to-end feature delivery across our distributed storage and distributed computesystems - the parts that hold customer bytes durably across availability zones and turn&nbsp;customer intent into running infrastructure in seconds. You’ll partner with architects and senior&nbsp;engineers across the team, and own the production quality of what you ship.<br><br><strong>Responsibilities</strong><br>● Build and ship - design, implement, test, and operate features end-to-end across the&nbsp;platform.<br>● Engineer for resilience - make sure what you ship survives crashes, timeouts, retries,&nbsp;and partial failures.<br>● Own feature design - drive the technical approach; partner with architects and senior&nbsp;engineers on cross-cutting decisions.<br>● Shape the customer-facing API surface - design contracts customers depend on; own&nbsp;versioning and backward compatibility.<br>● Partner across teams - write design notes when work crosses service boundaries;&nbsp;review peers’ work.<br>● Operate what you ship - observability and post-mortems for the systems you own.</p> <p><strong>Minimum qualifications</strong><br>● 5+ years building production backend systems in Go or an equivalent language.<br>● Hands-on experience with distributed systems - sagas, state machines, work queues,<br>idempotency, retries, exponential backoff.<br>● Production Postgres experience - RLS, transactions, isolation levels, schema migrations,&nbsp;connection pooling.<br>● Experience designing gRPC and protobuf service contracts - schemas, deadlines,&nbsp;retries.<br>● Hands-on production experience on a major public cloud - AWS, GCP, or Azure.<br>● Demonstrated production ownership - you’ve designed, shipped, and operated features&nbsp;that customers depend on.</p> <p><strong>Preferred qualifications</strong><br>● Experience working with a systems language - Rust, C, or C++.<br>● Experience building managed databases or working on database internals.<br>● Experience with Kubernetes operators - using existing ones or building custom operators<br>for stateful workloads (e.g., KubeVirt).<br><br><strong>Why you should apply</strong><br>● If you enjoy hard, foundational problems - distributed-systems durability, replication, and&nbsp;performance under failure that don’t have textbook answers - there’s no shortage of&nbsp;them here.<br>● Real impact from day one - enterprise customers depend on what you ship today, and&nbsp;the next generation of AI-era data infrastructure runs on what you build tomorrow.<br>● Work alongside experienced architects and senior engineers across the platform - in a&nbsp;friendly, collaborative team.<br>● Competitive compensation, equity, and clear technical-leadership pathing in a focused&nbsp;team on its way to becoming a unicorn.<br><br><strong>Equal opportunity at Tessell</strong><br>Tessell is an Affirmative Action and Equal Opportunity Employer. We offer equal employmentn&nbsp;opportunities to everyone regardless of race, color, ancestry, religion, sex, national origin,&nbsp;sexual orientation, age, citizenship, marital status, disability, gender identity, veteran status, or&nbsp;any other characteristic protected by law.</p>