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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # foundational Software Engineer (Infrastructure) - **Company:** Numeral Two Inc. - **Location:** San Francisco, CA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Cloud Computing, Continuous Integration, Information Engineering, Disaster Recovery, Distributed Systems, Fault Tolerance, PostgreSQL, Node.Js, Performance Tuning, Redis, Prometheus, Service-Oriented Architecture, Datadog, Reliability of Systems, Backend, Event Driven Architecture, Build Management, Containerization, Kubernetes, Infrastructure Automation Frameworks, Apache Kafka, Graphql, Terraform, Data Pipelines - **Published:** September 4, 2026 - **Apply:** https://startup.jobs/software-engineer-infra-numeral-6236677 ## About the Role * 7+ years of experience building and scaling backend or infrastructure systems in high-growth environments. * Proficiency in Node.js, PostgreSQL, Redis, and AWS (or equivalent cloud platforms). * Experience managing containerized workloads using tools like Kubernetes, ECS, or similar. * Expertise in observability tooling (e.g., Datadog, Prometheus, OpenTelemetry) and monitoring pipelines. * Proven ability to design fault-tolerant, distributed systems at scale. * Strong debugging and performance optimization skills across the stack. * Exceptional collaboration and communication skills, with experience partnering cross-functionally. * Startup mindset: Not scared of ambiguity and hungry for rapid growth * Intensity & Ownership: This is not a 9-5 - we're scaling rapidly and have a massive opportunity ahead of us. * Customer Obsession: You deeply care about the user experience and solving their problems Even better: * Experience in payments, tax, accounting, or regulatory tech. * Infrastructure or platform engineering background (e.g., CI/CD, observability). * Experience scaling monolith-to-service architectures or event-driven systems. * Familiarity with GraphQL, Kafka, Terraform, or container orchestration tools. ## Description We're looking for a foundational Software Engineer (Infrastructure) who thrives on solving complex distributed systems problems at scale. You'll design and build core infrastructure, improve service reliability and observability, and ensure the platform's scalability as we handle increasing transaction volumes and integrations. This is a high-leverage, foundational role: your work will define the architecture and technical direction of our infrastructure platform while directly impacting our customers' experience and the company's trajectory. What you'll do: * Design and build highly scalable, secure, and reliable infrastructure to support critical APIs, services, and data pipelines. * Lead infrastructure architecture decisions for performance, observability, and fault tolerance. * Drive improvements in system reliability, monitoring, and incident response. * Collaborate closely with product, platform, and data engineering teams to enable rapid feature development without compromising stability. * Automate infrastructure management through infrastructure-as-code, CI/CD pipelines, and container orchestration. * Champion best practices in operational excellence, disaster recovery, and distributed systems design. ## Related Videos - [Inside Bitpanda's Tech Stack: Scaling a European Fintech Leader - Markus Dorner](https://www.wearedevelopers.com/videos/1979-inside-bitpanda-s-tech-stack-scaling-a-european-fintech-leader-markus-dorner) - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) - [Putting the Graph In GraphQL With The Neo4j GraphQL Library](https://www.wearedevelopers.com/videos/257-putting-the-graph-in-graphql-with-the-neo4j-graphql-library) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [Event based cache invalidation in GraphQL](https://www.wearedevelopers.com/videos/433-event-based-cache-invalidation-in-graphql) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [The Best X (Twitter) Accounts for Developers](https://www.wearedevelopers.com/magazine/294-the-best-x-twitter-accounts-for-developers) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe)