Senior Full-Stack Developer(Python)

Ukraine

Senior Full-Stack Engineer (Python-first) with strong back-end depth and solid front-endfluency. You’ll take ownership of core services and distributed evaluation pipelines, harden them for scale and reliability, and help guide architecture as we grow from “works at scale” to “enterprise-grade.” This is an IC role with a clear path to team lead as we expand.

Key Responsibilities:

Design, build, and own Python microservices powering evaluation, gating, and optimization workflows
Extend distributed computing for large-scale evaluations using Ray/Optuna (or similar)
Architect cloud-native data/optimization pipelines with strong SLAs and fault tolerance
Define and maintain clean APIs and event/async communication across services
Drive performance, observability, tracing, and reliability (metrics, logs, alerts)
Automate build/test/deploy with Docker, Kubernetes, and CI/CD pipelines
Contribute to and integrate with the CLI/SDK and support light React/TypeScript UI needs
Collaborate closely with the founder/CTO and product/design/devrel on roadmap and milestones
Use LLM-assisted tooling to accelerate coding, reviews, documentation, and tests

Required Skills & Experience:

6+ years in software engineering with strong Python back-end experience
Proven track record with distributed systems and microservices (async/event-driven)
Hands-on with Ray, Optuna, or comparable distributed/optimization frameworks
Strong API design, data pipeline design, and service-to-service integration skills
Production experience on AWS/GCP/Azure; solid Kubernetes + Docker + CI/CD
Working knowledge of React/TypeScript/Next.js for light full-stack tasks
Obsessed with quality: testing, automation, code health, and continuous improvement
Excellent communication in English; self-driven and comfortable in a fast-moving startup

Nice to Have:

Experience with evaluation-driven or LLM-assisted development workflows
Background in distributed optimization, experiment design, or scheduling at scale
Deep observability chops (tracing, profiling, cost/latency budgeting)
DevOps/SRE familiarity (infra-as-code, security hardening, multi-tenant SaaS)
Data/ML plumbing (feature stores, vector DBs, retrieval)
Contributions to developer tooling (CLI/SDKs) or platform enablement

Mariia Kryvonis

Recruiter

Contacts

mariia.kryvonis@forbytes.com

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We offer

People: The new team is just being built. You will work directly with our client’s side representative and have your influence on the crucial designs and architecture of the applications.

Self-development: We guarantee regular challenges and the ability to make your own decisions, you will be able to visit leading international tech conferences and organize meetings on the client’s side.