Mid-Senior Fullstack Remote

About the Position

Mid-Senior Fullstack Remote

Optiveum is looking for a Mid-Senior Fullstack Engineer for a long-term, engaging project. The cooperation is based on a B2B contract directly with Optiveum, starting as soon as possible.

Responsibilities

• Deliver and own features across React Native, Next.js, NestJS, TypeScript, Go, and Python microservices on GCP.
• Diagnose and improve real product workflows spanning UI, APIs, data, media, background processing, and third-party services.
• Strengthen the media lifecycle-including capture, upload, processing, playback, analysis, retrieval, and failure recovery-across mobile and web.
• Use AI tools (e.g., Gemini, ChatGPT) as an active engineering partner for coding, testing, debugging, and documentation-verifying outputs rather than relying on it as a simple answer machine.
• Write maintainable code, focused tests, useful instrumentation, and concise documentation.

Requirements

• Solid TypeScript/JavaScript fundamentals with substantial experience delivering and operating customer-facing mobile or web applications.
• Production depth in Node.js and at least one major product surface (such as React Native or Next.js).
• Working knowledge of APIs, data modeling, asynchronous workflows, testing, and cloud deployment (GCP preferred).
• Ability to read, extend, and troubleshoot Go and Python microservices.
• Clear written and spoken English, dependability in a remote team, and a direct, low-ego approach to problem-solving.

Nice to Have

• Experience with media-heavy consumer products, social/community systems, creator platforms, or in-app purchases.

We Offer

• Salary: 125 - 130 PLN net/h (Please note: The final B2B contract will be signed in USD at the current exchange rate).
• Contract: B2B directly with Optiveum.
• Start: ASAP, long-term project.
• Type of work: 100% Remote from Poland.
• Working hours: Full-time, flexible hours (occasional late afternoon/evening meetings required for US time zone alignment).

About the Company

Optiveum is a recruitment and consulting company created based on our 20-plus years of experience in HR & IT services. We work for clients located in Poland and abroad, providing our local and international candidates with project-based or permanent job opportunities in a remote or office-based model.

COMPANY DATA

Optiveum Sp. z o.o.

ul. Tomasza Zana 43 lok. 2.1 20-601 Lublin, Poland

nr KRS: 0000834436, NIP 7010975729

Contact us at: [email protected]

Founded in 2020