FOURTHWALL

Senior Backend Engineer (Kotlin / Java)

22.5k - 38k PLN22 500 - 38 000 PLN/ mies./ mies.B2BB2B (netto)

SeniorZdalnie·PoznańFull-time·B2B

#459488·Dodano 20 dni temu·11

Źródło: justjoin.it

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Tech Stack / Keywords

Kotlin Spring Boot PostgreSQL JavaJOOQGoogle CloudPayment systemsAPI DesignIdempotency and reconciliationOn-call Support

Podsumowanie oferty

You will work on a comprehensive ecommerce platform handling product design, manufacturing, shipping, payments, taxes and customer support. The role is a senior individual contributor focused on backend development using Kotlin and Java. You will participate in on-call backend rotations and help maintain a live production service with several daily deployments.

Wymagania

Production experience in Kotlin or Java on a Spring backend.
Strong SQL skills and understanding of what SQL queries run and ORM abstractions.
Knowledge of proper error handling, including use of return types like Either or Kotlin Result.
Experience integrating at least one third-party API end to end with attention to contract, retries, idempotency, and error handling.
Understand performance and failure modes of queries, HTTP calls, or background jobs.
Experience shipping features and measuring their impact on users or revenue.
Experience making deliberate design tradeoffs when requirements change.
Ability to quickly get up to speed on work outside your normal domain, such as data pulls or Terraform modules.
Clear written English.

Obowiązki

Join the backend on-call rotation.
Maintain and develop the Kotlin backend service handling payments, refunds, payouts, and tax.
Collaborate in feature planning, building, and rollout cycles.
Work with coding agents and own the code you merge.
Troubleshoot production issues and communicate with support and growth teams.

Benefity

Monthly net salary range from 22,500 to 38,000 PLN on B2B contract.
26 days off per year at full monthly fee.
MacBook provided.
Private healthcare including dental coverage.
Sports card membership.
English lessons.
Educational budget.
Accounting support.
Equity in the US-based company.

Opieka zdrowotna

Karta sportowa

Kursy językowe

Dofinansowanie szkoleń

Premie

Inne informacje

The controller of personal data is Fourthwall, Inc. They process personal data for recruitment purposes based on legal grounds including Labour Code and GDPR. Data provision required by law is mandatory; other data provision is voluntary. Personal data may be stored up to 24 months with consent. Candidates have rights to access, rectify, erase, restrict, port data, object and lodge complaints.

FOURTHWALL

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