Senior Elixir Developer

**Who We Are Seeking:** We’re looking for a talented and experienced Elixir Backend Developer to join our international team and help design, build, and harden our **agentic contracts execution layer** —the platform where autonomous/agent\-driven workflows orchestrate and execute contractual logic reliably, at scale. This role presents an excellent opportunity for those looking to work in a dynamic environment and be part of a high\-performing international team, offering ample opportunities for growth and development in technical and interpersonal skills. You’ll work on resilient OTP services, job orchestration, stateful workflows, and observability to ensure correctness, auditability, and performance. We seek an energetic, driven, and articulate team player who is truly passionate about their work **Your Role and Responsibilities:** * Design and implement Elixir/OTP services (GenServer, Supervision trees, Registries) that power contract execution and agentic workflows. * Own the lifecycle of long\-running, event\-driven workflows (timers, scheduling, compensations/Saga patterns, exactly\-once/at\-least\-once semantics). * Develop secure APIs and integrations, rate limiting, and request budgets for agent calls. * Optimize performance (ETS, streams, batching, backpressure) and observability (tracing, metrics, structured logs). * Collaborate with Product and AI/Agent teams to translate requirements into deterministic, testable contract execution flows. * Write high\-quality tests, migrations, and production\-grade documentation. **Tech You’ll Use:** * **Elixir** /OTP (GenServer, Supervisors, Applications), **Phoenix** (APIs), **Ecto** (PostgreSQL), **Oban, OpenTelemetry/PromEx** * Message brokers \& streams: **Kafka** or **RabbitMQ** * Container \& cloud: **Docker** , **Kubernetes** , AWS/GCP/Azure * CI/CD: GitHub Actions (or similar), feature flags, migrations \& rollout strategies **Essential Qualifications:** * 3\+ years building production Elixir/OTP services (or 5\+ years BE \+ 1–2 years Elixir with strong OTP fundamentals). * Deep understanding of concurrency, supervision strategies, and fault tolerance on the BEAM. * Solid experience with **Ecto/MySQL** , schema design, transactions, and migrations. * Practical knowledge of **job orchestration** (Oban or equivalent), idempotency, retries, and backpressure. * Proven track record in building and maintaining **event\-driven** or **workflow** systems with strong correctness guarantees. * Comfortable with containerized deployments and CI/CD; you ship and you own. * Strong written and spoken **English** (daily collaboration in English). **Who We Are:** DevGrid is a top\-tier software consulting company based in the UK, with a development hub in Brazil and operations spanning Europe and the US. We believe that world\-class software can only be created by a motivated and enthusiastic team in an environment that fosters creativity and free thinking. Established in 2015, we aim to drive innovation and digital transformation by combining our robust business culture and exceptional engineers with forward\-thinking business insights. **What We Offer:** * Contract\-based hiring; * Full\-time opportunity (40 hours per week); * 100% remote work / home office; * Performance\-based bonuses tied to achievements and deliverables; * Open and flexible time\-off policy; * Supportive and collaborative work environment; * Equipment program; * Paid days off per year \+ holidays (variable) \+ recess days; * Sponsorship program for relevant courses and training. For more information, visit: Website: https://devgrid.co.uk/ Glassdoor: https://www.glassdoor.com.br/Vis%C3%A3o\-geral/Trabalhar\-na\-DevGrid\-EI\_IE2920141\.13,20\.htm *\*\*All DevGrid positions are open to individuals from all backgrounds (including all races, colors, nationalities, religions, genders, sexual orientations, disabilities, ages, or other applicable characteristics), promoting equal opportunities and affirmative action.* **If you're interested in the job opening and our mission, come join us on this journey!** **Live long and prosper! 🖖🚀**