Senior Software Engineer

Conexiom; Polska; Hybrid; PLN 320,000 - 520,000; Full time

Job summary

Conexiom is evolving into an AI-first platform and is hiring a Senior Software Engineer to design, build, and operate customer-facing applications, intelligent services, and AI-powered workflows driving that shift. You’ll own production services across Node.js, TypeScript, Python, React, and Azure stack, collaborating with product managers, architects, data engineers, designers, and peers.

In year one, you’ll ship AI-enabled features that measurably improve customer workflows, establish patterns

Qualifications

• 7+ years of professional software engineering experience.
• Hands-on production work with Node.js, TypeScript, and Python.

Responsibilities

• Designs and builds customer-facing features and platform services in Node.js, TypeScript, and Python that apply modern AI models and RAG patterns to real business problems.
• Evaluates emerging AI technologies and establishes patterns and best practices for reliable, secure AI-powered applications.
• Owns the full lifecycle of production software — design, build, test, deploy, and operate — in a 24x7 SaaS environment, including REST APIs and cloud-native integrations.
• Diagnoses and resolves complex production issues and drives improvements to scalability, reliability, and performance.
• Builds AI-assisted development into daily workflow and drives engineering productivity gains through automation and testing acceleration.
• Shapes engineering standards for AI safety, governance, and responsible use, and raises the AI fluency of the organization.
• Mentors engineers and shapes technical direction through code review, architecture discussions, and sound judgment.
• Partners with Product Management, Architects, Data Engineers, and Security teams on shared initiatives, communicating tradeoffs clearly.

Skills

Node.js

TypeScript

Python

REST APIs

Cloud platforms

Agile

AI tooling

Tools

Azure

AWS

GCP

Docker

Kubernetes

Job description

Conexiom is evolving into an AI-first platform, eliminating the manual, error‑prone commerce processes that slow manufacturers and distributors down. We’re hiring a Senior Software Engineer to help design, build, and operate the customer‑facing applications, intelligent services, and AI‑powered workflows driving that shift. This isn’t a traditional engineering role: you’ll treat AI as a multiplier for both product capability and engineering productivity, applying modern AI models, agent frameworks, and retrieval‑augmented generation (RAG) patterns to solve real business problems.

You’ll own production services across our Node.js, TypeScript, Python, React, and Azure stack, working closely with Product Managers, Architects, Data Engineers, Designers, and fellow Software Engineers to ship scalable solutions for mission‑critical processes at some of the world’s leading manufacturers and distributors.

In year one, success looks like: shipping AI‑enabled features that measurably improve customer workflows, establishing patterns and best practices for reliable, secure AI‑powered applications that other engineers adopt, and becoming a go‑to technical mentor who raises the AI fluency of the broader engineering team.

What You’ll Do

• Designs and builds customer‑facing features and platform services in Node.js, TypeScript, and Python that apply modern AI models, agent frameworks, vector search, and RAG patterns to real business problems.
• Evaluates emerging AI technologies and establishes patterns and best practices for reliable, secure, observable AI‑powered applications.
• Owns the full lifecycle of production software — design, build, test, deploy, and operate — in a 24x7 SaaS environment, including REST APIs, event‑driven services, and cloud‑native integrations.
• Diagnoses and resolves complex production issues and drives improvements to the scalability, reliability, and performance of existing systems.
• Builds AI‑assisted development into daily workflow and drives engineering productivity gains through automation, code generation, and testing acceleration.
• Shapes engineering standards for AI safety, governance, and responsible use, and raises the AI fluency of the broader engineering organization.
• Mentors intermediate and junior engineers and shapes technical direction through code review, architecture discussions, and sound judgment.
• Partners with Product Management, Architects, Data Engineers, and Security teams on shared initiatives, and communicates technical tradeoffs clearly to both technical and non‑technical audiences.

What You Bring

• 7+ years of professional software engineering experience, including hands‑on production work with Node.js, TypeScript, and Python.
• Proven ability to design, build, and operate SaaS applications in production — including RESTful API design, cloud platforms (Azure, AWS, or GCP), and independently leading technical initiatives from design through deployment.
• Working knowledge of software architecture, distributed systems, security, observability, and reliability sufficient to make sound tradeoffs under production constraints.
• Hands‑on, daily use of modern AI development tools (GitHub Copilot, Cursor, Claude Code, or similar) and experience integrating LLMs via APIs (OpenAI, Anthropic, Azure OpenAI, Google).
• Familiarity with agent frameworks, prompt engineering, retrieval patterns, and evaluation techniques.
• Experience working in Agile software development environments.

Nice to Have

• Experience with Microsoft .NET and C#.
• Experience with React and modern frontend development.
• Experience with Azure AI services and the Microsoft AI ecosystem.
• Experience with event‑driven architectures, Kafka, messaging systems, or workflow orchestration.
• Experience with vector databases, embeddings, RAG implementations, or AI agent platforms.
• Experience building enterprise automation, integration, ERP, or document‑processing solutions.
• Experience with containerization technologies such as Docker and Kubernetes.

Real Growth, Not Just a Title

We’re on a rapid growth trajectory, which means the opportunities you create here are yours to own. High performers don’t wait for a seat at the table — they build one. If you’re someone who runs toward complexity and wants your contributions to shape the direction of a scaling company, you’ll find room to grow.

A Culture That Actually Includes You

Inclusive culture isn’t a talking point for us — it’s something we actively build. That means hiring for diverse perspectives, creating space for candid conversations, and holding ourselves accountable to an environment where different backgrounds and ways of thinking make the work better. We’re not perfect, but we’re committed.

Conexiom is an equal opportunity employer. We believe the best teams are built from diverse perspectives, backgrounds, and experiences — and we’re committed to creating an environment where everyone can do their best work.

If you don’t meet every qualification listed, apply anyway. We hire for skills, experiences, and accomplishments — not where you’ve been, but what you’ve done.

If you require accommodations at any point during the recruitment process, please reach out to our People team at [e-mail]. We’re happy to help.