Senior AI-Native Software Developer

Optional, AWS, LangGraph, Strands Agents, Temporal, AWS Step Functions, Amazon Bedrock, OpenAI, Anthropic APIs, MLflow, SageMaker About the project, Cyrantos is partnering with a healthcare and financial intelligence platform to find a highly experienced Senior AI-Native Software Developer to join their team. This is a remote position with a start date as soon as the candidate successfully completes the interview process., , About the Role, , As a Senior AI-Native Software Developer, you will help design and build production-grade agentic workflow platforms for healthcare data analytics and financial portfolio intelligence. You will work at the intersection of software engineering, AI agents, data platforms, deterministic analytical engines, and cloud-native architecture. The focus is on building reliable systems in which LLM-powered agents collaborate with business rules, statistical models, APIs, and human approval workflows. Our client is looking for a senior engineer who treats AI as part of a broader software system and not as a standalone chatbot as well as can turn experimental agent concepts into secure, testable, explainable, and production-ready platforms. This is how we work, at the client's site Your responsibilities, Design and implement multi-agent workflows using frameworks such as LangGraph, Strands Agents, or OpenAI Agents SDK, Integrate agent workflows with AWS Step Functions, EventBridge, SQS, Lambda, and container-based services, Build secure tools and APIs used by AI agents to access data, calculations, optimization engines, and compliance rules, Integrate LLMs through Amazon Bedrock, OpenAI, Anthropic, or similar platforms, implementing structured outputs, model routing, fallbacks, prompt versioning, and cost controls, Develop RAG pipelines using approved internal, regulatory, clinical, or financial knowledge sources, Connect AI components with deterministic Python services, statistical models, rules engines, and optimization algorithms, implementing human-in-the-loop review, audit trails, observability, and model evaluation, Contribute to architecture decisions, code reviews, testing, deployment, and engineering standards Strong commercial experience with Python and modern backend development, Experience building cloud-native systems, preferably on AWS, Practical experience integrating LLMs and developing agentic or AI-enabled applications, Knowledge of APIs, event-driven architecture, asynchronous processing, and distributed systems, Experience with relational databases, data pipelines, and structured data processing, Strong understanding of software quality, security, testing, and production observability, Ability to distinguish between tasks suitable for LLMs and those requiring deterministic implementation Optional, Experience with LangGraph, Strands Agents, Temporal, or AWS Step Functions is a plus, Hands-on experience with Amazon Bedrock, OpenAI, or Anthropic APIs is beneficial, Knowledge of RAG, vector databases, embeddings, and reranking is a plus, Familiarity with ML pipelines (MLflow, SageMaker), compliance, data lineage, model governance, or human-approval workflows is beneficial Recruitment stages, Phone screening, Technical interview, Culture fit interview If you are a passionate Senior AI-Native Software Developer eager to turn agentic AI concepts into production-ready platforms and grow within a dynamic team, we would love to hear from you. Cyrantos - DevAbundance Sp. z o.o. , Cyrantos is a boutique partner for growing revenue by scaling tech teams, IT contracting, and specialized recruitment, trusted by enterprise organizations and fast-growing scale-ups across Europe. We help companies accelerate product development, strengthen engineering capabilities, and access vetted senior tech talent - quickly and transparently., , Born from a decade of experience building high-performance teams, Cyrantos was founded with a simple mission: deliver premium technical talent with honesty, speed, and deep business understanding. We’ve worked with 70+ clients, built 23 complete engineering teams, and placed 40+ specialists across software engineering, cloud, data, product, and leadership roles. Our approach blends a curated consultant network with rigorous vetting, allowing clients to onboard top performers without friction or lengthy recruitment cycles., , We believe in a partnership-first mindset: clear communication, transparent time reporting, and solutions tailored to every company’s stage of growth. Whether you’re augmenting your existing engineering team, building a product squad from scratch, or bridging hiring gaps with experienced contractors, Cyrantos ensures you scale efficiently and without compromise on quality., , Headquartered in Poland and operating internationally, we support clients across technology, finance, manufacturing, energy, gaming, and high-growth SaaS. Our commitment is to deliver exceptional people who not only bring technical expertise, but also strengthen culture, ownership, and delivery performance.