Ask HN: Who is hiring? (April 2026)

We are looking for experienced Software and Site Reliability Engineers to help secure the foundation of MongoDB Atlas, our globally distributed, multi-cloud database platform running across AWS, GCP and Azure.

This is a builder role, focusing on security tooling and observability, runtime detection, hardening policies, and infrastructure-as-code guardrails that protect our massive infrastructure.

Some of the things we're working on:

- Building secure-by-default infrastructure leveraging Linux, eBPF and Kubernetes security mechanisms, and implementing runtime detection and monitoring.

- Developing our in-house CSPM (Cloud Security Posture Management) and Vulnerability Management platforms.

- Integrating security directly into our CI/CD workflows and Terraform pipelines.

We're looking for engineers with a strong systems mindset who have some of:

- 5+ years of experience in SWE, SRE, or similar roles with some relevant security experience.

- Proficiency in one programming language: Golang, Rust, Python, C/C++ etc.

- Deep understanding of Linux internals, networking, and Kubernetes security.

- Familiarity with one major cloud provider (AWS, GCP or Azure.)

- A builder's mentality: you think about failure modes, observability, and operability alongside security and correctness.

For any questions, or to apply (mention HN): Email: hani.benhabiles+hn@mongodb.com JD: https://www.mongodb.com/careers/jobs/7727896

Other SRE / Infrastructure teams as are also hiring. Happy to help.

We offer a strong engineering culture and are looking for engineers to design and optimize high-performance trading systems that power our periodic auction matching infrastructure.

We build production systems in Rust and are seeking engineers with meaningful Rust, C++, Java, or Python experience, particularly from backend or systems-oriented environments.

Systems Engineer Systems programming role focused on low-latency, high-throughput distributed computing. Work across order and data workflows, auction execution, reliability, and performance optimization to ensure the platform is efficient, fault-tolerant, and capable of complex trade matching at scale.

We’re especially interested in engineers who: Have built backend or systems-level software Care deeply about performance, concurrency, and correctness Are motivated by real-time, performance-sensitive systems Have experience with compilers, static analysis, or language tooling (a strong plus)

Software Engineer, Data Platform Build and evolve the infrastructure behind our analytics platform. The role sits between data engineering and backend development and focuses on high-volume, time-sensitive data pipelines and workflow systems that process terabytes of trading data and billions of rows daily.

We’re especially interested in engineers who:

Have built internal data platforms or large-scale pipelines (Python/SQL; Rust a plus) Have experience with workflow orchestration (Temporal, Airflow, Dagster, etc.) Have worked with large datasets, columnar formats (Parquet/Arrow), and production data systems

CONTACT: careers@onechronos.com – please include “HN” in the subject line. ADDITIONAL OPENINGS: https://www.onechronos.com/careers/

Coast is re-imagining the trillion-dollar U.S. B2B card payments infrastructure, with a focus on the country’s 500,000 commercial fleets, 40 million commercial vehicles, and many million commercial drivers. Coast's mission is to deliver modern digital experiences, affordable and transparent financial services products at a transformational scale, and to improve working lives in one of the country’s biggest industry sectors.

Coast is competing and winning with software, and we are building a world-class engineering team. We are looking for a Platform Engineer (Security)/DevSecOps Engineer - first of it's kind at Coast, with high ownership, impact, visibility. We are also looking for full-stack product engineers across mid to senior levels.

If interested, please apply:

Product Engineer: https://job-boards.greenhouse.io/coast/jobs/4000170004 Base: $160,000 - 215,000 + equity + benefits + equity and fun perks!

DevSecOps/Platform Engineer/Security Engineer: https://job-boards.greenhouse.io/coast/jobs/5816914004 Base: $160,000 - $180,000 + equity + benefits + equity and fun perks!