• Build and run autonomous agent systems that execute go-to-market workflows, including research, outreach, data enrichment, and reporting. • Oversee the AI operations toolchain end to end — identifying opportunities for automation, designing and deploying agents, and continuously optimizing performance. • Collaborate directly with leadership to address high-impact operational challenges and drive measurable results. • Maintain and enhance agentic systems integrated with platforms such as HubSpot, Clay, Slack, Notion, and Attention.

About the teamThe Foundations team builds and evolves the application-level infrastructure that powers Hex. We own the shared backend systems, frameworks, and primitives that other teams depend on—helping the company move faster while maintaining reliability, performance, and security. Our work spans APIs, realtime transport, storage frameworks, background processing, and internal tooling. Rather than shipping isolated features, we focus on creating durable systems that scale with the company and make product development easier for everyone. About the roleWe’re looking for a Senior Backend Software Engineer to help design, maintain, and evolve the core systems used across Hex. This role is centered on backend architecture and shared infrastructure, with responsibility for APIs, realtime communication, data access frameworks, job orchestration, and internal admin tooling. You’ll work closely with product engineering teams to understand their needs, then turn common patterns into robust, reusable systems. You’ll help define standards, influence architecture, and raise the quality bar across the backend. Frontend experience is helpful for understanding end-to-end workflows, but this role is primarily backend-focused. Core ContributionsYou will help contribute to and evolve several foundational areas, including: APIs - GraphQL(schema design, performance, developer ergonomics) - Authentication & authorization(security, scalability, correctness) - Multiplayer & collaboration APIs(realtime state, concurrency) Transport - WebSockets and realtime communication infrastructure Storage Frameworks - Postgres (schema design, query optimization, migrations) - S3, DynamoDB, Redis Job & Workflow Systems - BullMQ and background job processing - Temporal or similar workflow orchestration systems Internal Tooling - Internal admin tools for debugging, operations, and customer support What You'll Do - Design and build backend frameworks and services used across the company - Own and evolve critical shared systems, including APIs, realtime transport, and job orchestration - Improve reliability, performance, observability, and security of foundational backend infrastructure - Partner with product teams to turn recurring needs into shared abstractions - Lead technical design discussions and help set architectural direction - Drive refactors, migrations, and system upgrades that reduce long-term complexity - Improve internal tooling to support debugging, operations, and customer-facing workflows - Mentor other engineers and contribute to strong engineering standards and practices What we're looking for - 5+ years of professional software engineering experience with a strong backend focus - Experience working with Typescript/Node.js and SQL - Experience building and maintaining shared backend systems or frameworks used by multiple teams - Strong understanding of API design, distributed systems, and asynchronous workflows - Experience working with relational databases and data modeling at scale - Familiarity with background job systems, queues, or workflow orchestration tools - Comfort operating and evolving production systems over time - Experience with cloud infrastructure (AWS preferred) - Strong communication skills and a collaborative, leverage-oriented mindset Bonus Points - Experience with Python - Hands-on experience with GraphQL, WebSockets, BullMQ, or Temporal - Familiarity with observability tooling (metrics, tracing, logging) - Background in data platforms, developer tools, or collaborative systems - Experience with frontend technologies (e.g. React, TypeScript) for end-to-end context - Open-source contributions, especially in backend or infrastructure projects Our stackOur product is a web-based notebook and app authoring platform. Our frontend is built with Typescript and React, using a combination of Apollo GraphQL and Redux for managing application state and data. On the backend, we also use Typescript to power an Express/Apollo GraphQL server that interacts with Postgres, Redis, and Kubernetes to manage our database and Python kernels. Our backend is tightly integrated with our infrastructure and CI/CD, where we use a combination of Terraform, Helm, and AWS to deploy and maintain our stack. In addition to our unique culture, Hex proudly offers a competitive total rewards package, including but not limited to, market-benched salary & equity, comprehensive health benefits, and flexible paid time off. The salary range for this role is: $215,000 - $270,000 The salary range shown may be a reflection of additional factors such as geographical location and skill ranges/levels we’re open to. Placement in the salary range will be decided upon completion of the interview process, taking into account factors like leaving room for growth, internal fairness & parity, your demonstrated skills, and the depth of your experience. Our Recruiting team will be able to provide more details during the interview process. By submitting an application the candidate consents to the use of their personal information in accordance with the Hex Privacy policy: https://learn.hex.tech/docs/trust/privacy-policy.

Desenvolvedor(a) Pleno Fullstack - Node.js/React Você busca uma oportunidade 100% remota, com times distribuídos e uma cultura de colaboração, valorizando a confiança, autonomia e responsabilidade? A Confi é uma empresa de tecnologia que atua em soluções digitais de inteligência de mercado, logística reversa e B2C gerando confiança entre empresas e consumidores. Nosso time de tecnologia está em transformação e busca por pessoas que tenham curiosidade e vontade de aprender, busquem entregas de alta qualidade técnica e desejam crescimento em sua carreira. Responsabilidades - Implementar funcionalidades completas em aplicações do banco de dados ao front-end - Modelar e otimizar dados em bancos de dados noSQL e relacional - Integrar aplicações com APIs externas (REST/GraphSQL) - Escrever e manter testes automatizados Requisitos Técnicos - Experiência prática em Node.js e React - Conhecimentos sólidos em MongoDB e outro banco relacional (PostgreSQL, MySQL, etc) - Vivência com esteiras/pipelines de CI/CD - Experiência com Cloud Computing (OCI será um diferencial) Diferenciais - Experiência prática com Meteor.js - Noções de segurança sobre aplicações web - Vivência com conteinerização Modelo de trabalho: Remoto Contrato: PJ

On behalf of PTBOX, SD Solutions is looking for a talented Full Stack Developer SD Solutions is a staffing company operating globally. Contact us to get more details about the benefits we offer. Responsibilities: - Develop robust backend services using Kotlin (Spring Boot / Ktor) and build modern frontends with React + TypeScript. - Design and implement REST APIs and real-time communication layers (WebSocket / SSE). - Containerize and orchestrate applications using Docker and docker-compose, including advanced patterns like Docker-in-Docker and sidecar containers. - Design and optimize PostgreSQL databases with focus on performance and scalability. - Ensure high security standards (input validation, rate limiting, secure resource management). - Take full ownership of features — from requirements gathering to production deployment. - Write clear technical documentation and justify architectural decisions. - Work independently in a fast-paced environment while maintaining high code quality. Requirements: - 3–5+ years of professional experience - Strong Kotlin/JVM backend skills; ability to architect services independently - Solid React/TypeScript frontend skills - Hands-on Docker experience in production (orchestration and programmatic management) - Experience with REST API design and real-time communication (WebSocket/SSE) - Database design and query optimization - Security awareness (input validation, rate limiting, resource management) - Ability to write technical documentation and explain architecture decisions - Independent worker capable of taking tasks from requirement to production About the company: PTBOX offers security leaders a comprehensive platform to continuously assess, validate, and enhance their security defences. By simulating tailor-made attack scenarios based on real-world threats, PTBOX enables teams to evaluate their readiness and response capabilities. With automated features, PTBOX streamlines the testing process, allowing for repeated assessments until threats are addressed. By proactively testing under various conditions, businesses can identify and mitigate vulnerabilities, ensuring effective and swift responses to potential attacks. By applying for this position, you agree to the terms outlined in our Privacy Policy. Please take a moment to review our Privacy Policy https://sd-solutions.breezy.hr/privacy-notice, and make sure you understand its contents. If you have any questions or concerns regarding our Privacy Policy, please feel free to contact us.