Posted 4 hours ago
High-trust enterprise workflows require a level of intelligence and judgement; otherwise, they would already be automated by traditional software. But they also need high accuracy, repeatability and transparency - areas where “reasoning” LLMs and chatbot-style AI agents really struggle.
We have built a platform for long-lived, complex and high-communication enterprise workflows that delivers superior accuracy, repeatability and durability. It’s the inverse of “pick the biggest model you can find, load up the context window, give it 100 tools and hope it follows the prompt”. We apply LLMs and other non-deterministic models within a durable, deterministic execution framework. We understand aggregate performance and accuracy and use the best model for each subtask.
Aguru is led by founders who've scaled and exited SaaS businesses before, and we're supported by industry leaders who've built category-defining products.
It's a senior, experienced crew, and you'll be working side by side with them, not under layers of management.
Initial roles are fully remote and Contractor positions.
Location: Remote, EU/UK preferred
Team: Engineering
Type: Full-time contractor
We are looking for a Senior Full Stack Engineer to join a small, high-impact engineering team. You will work across the product surface: React front end, NestJS backend, durable execution system, Postgres data layer and proprietary systems for evaluating and managing systems of LLMs. Some of this you may not have done before, but you will apply your transferable skills and experience!
This role suits someone who enjoys a variety of challenges, extending the forefront of what it takes to deliver reliable and trustworthy AI systems, and making those things simple and a joy to use. You will understand product needs, design clean domain models, build reliable components, ship easy-to-use interfaces, and debug distributed execution behaviour when things get interesting.
Build product features across our React/Vite frontend, NestJS backend, PostgreSQL data layer, and Temporal-powered worker stack.
Develop new ways to benchmark and optimise LLM use, including error detection and correction and blocking AI-focused security attacks
Identify where AI can meaningfully improve structured tasks (and not make things worse): extraction, classification, decision support, agentic tool use, document understanding, communication handling, and automation of tedious operational steps.
Design and extend systems to proactively benchmark, monitor, manage and optimise LLM selection, quantify drift in production, and measure cost vs. performance
Build APIs, data models, and tenant-aware authorization boundaries for workflows, executions, agents, connectors, inbox, dashboards, and configuration.
Create polished interfaces for workflow authoring, execution monitoring, review queues, dashboards, and configuration-heavy SaaS workflows.
Improve reliability through strong testing, runtime visibility, replay-safe changes, and careful debugging across UI, API, database, workers, and external services.
8+ years of professional software engineering experience, with strong ownership of production enterprise systems.
React experience, especially building complex data-heavy product interfaces
Experience with multi-tenant, distributed back-ends with mandatory authentication/authorization
Solid PostgreSQL experience, including schema design, migrations, query performance, transactional thinking, and gated data access.
Experience with durable or asynchronous systems: workflow engines, queues, jobs, event-driven systems, state machines, distributed orchestration.
Comfort debugging complex production behaviour across UI, backend, database, workers, and third-party integration layers.
Strong testing discipline and the ability to choose the right level of test for the risk involved.
Temporal.io experience, or comparable experience with durable workflows and replay-safe execution models.
Experience designing or maintaining workflow builders, automation platforms, rules engines, low-code tools, or developer-facing DSLs.
Experience identifying practical AI use cases inside business processes, especially where LLMs complement deterministic workflow logic.
Experience with AI/LLM integrations in production, including OpenAI, Anthropic, Gemini, structured outputs, tool use, agent patterns, or provider abstraction.
Experience with security-sensitive backend work: RLS, secure credential storage and tenant isolation
Experience with Kubernetes, Terraform, or other distributed orchestration systems
Systems thinking: You can reason about frontend state, API contracts, database state, background execution, and external systems as one product.
Product-minded engineering: You care whether a feature meets the product requirements and is also understandable, simple to use, and operationally reliable
Autonomy and ownership: You can take a loosely defined problem, collaborate to discover the constraints, make good tradeoffs, and ship.
Clear communication: You can explain tradeoffs, document decisions, and collaborate well with product, design, AI, and engineering teammates.
Accountability and integrity: You take responsibility for outcomes, communicate transparently, and uphold high standards in both technical and team-impacting decisions.
You’ll be joining a small, global team building a technically ambitious product at a stage where senior engineers can have a real impact. You will see work move quickly from idea to shipped product, and you will help define the architecture, quality bar, and engineering culture as we grow.
We value curiosity, clear thinking, accountability, and people who enjoy making complex systems feel simple for users.
To apply, please send your CV for the attention of Oleg at [email protected] with the subject line “Application for Senior Full Stack Engineer”. The application deadline is 30th June 2026.
Aguru is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all.
24d
Boosted listing Nomad
Denver CO
Boosted
Featured
Full-Time
$100,000 or more USD
🇺🇲 United States Minor Outlying Islands
🇺🇸 United States of America
5d
Boosted listing WALTER
Remote
Boosted
Featured
Full-Time
Anywhere in the World
5d
Boosted listing WALTER
Remote
Boosted
Featured
Full-Time
Anywhere in the World