550 freelance English-speaking jobs in Poland

We are looking for a Senior Backend Developer to join our Optimization Team at Programmers Force. In this role, you will focus on optimizing backend systems for performance, scalability, and efficiency while working on large-scale, high-traffic workloads. Your responsibilities will include refactoring backend code, improving database queries and indexing, troubleshooting bottlenecks, and collaborating with cross-functional teams to scale backend architecture. You will ensure systems remain secure, reliable, and efficient while mentoring junior team members and enhancing test coverage. The ideal candidate has 4+ years of backend development experience with strong expertise in PHP (Laravel), Node.js, Python, MongoDB, and relational databases (MySQL, PostgreSQL). You should also be proficient in API development (REST/GraphQL), performance optimization, Docker, Git, and CI/CD practices. Experience with Redis, RabbitMQ, AWS/Azure, and backend security best practices will be considered a plus.

: Remote Job Type: Freelance Job Description: Hot Iron Health is in search of Freelance Director Level ... Freelance Director Level Strategic Consultant Remote Job: Director Level Strategic Consultant Location

trends and best practices in freelance talent acquisition.Assist in the development of freelance talent ... engagements.Manage the full recruitment lifecycle for freelance roles, from initial contact to offer ... candidates through various channels (e.g., job boards, social media, professional networks, freelance ... The ideal candidate will have a deep understanding of the freelance market, excellent communication skills ... extension and onboarding.Build and maintain a robust pipeline of qualified freelance talent for future

an experiencedSAP ABAP Developer(5+ years) to join on aB2B contract/freelance basis. ... Freelance SAP ABAP Developer With OO Programming Experience - Contract, B2B - Start ASAPWe are seeking ... communication skills (written and spoken).Must be based in Poland and available to work on a B2B/freelance ... Independence: Must be able to work autonomously and deliver without supervision.If you are a seasoned freelance

This is a B2B/Freelance position. Location: Poland. ... Job Type: B2B/Freelance (6 months with possible extension). Working Model: Remote. ... This is a B2B/Freelance position. Below is the job description for your reference.

Dila Recruitment is looking for an amazing Freelance recruiter to join our team. ... This freelance role offers a commission-based structure, meaning your earnings will be directly tied ... Position: Freelance Recruiter Location: Remote from anywhere Employment type: 100% self employed / ... Freelance - able to invoice Remuneration: Commission per placed candidates RESPONSIBILITIES: Dive

Freelance Creative & HubSpot Specialist (10–20h/month) Freelance Creative & HubSpot Specialist (10–20h ... /month) What We’re Looking For We’re seeking a freelance specialist to support our marketing team with

Build your freelance career. Grow with Zima Media. ... This role is ideal for someone who enjoys remote freelance work, wants flexibility, and is eager to grow ... their skills while working with international clients.This is apart-time freelance contractwith potential ... the agency's overall growth.What You Bring0–3 years of experience in PPC or digital marketing (freelance

Overview Freelance Mechanical Engineer - AI Trainer at Mindrift. ... Part-time, remote freelance arrangement that fits around other commitments. ... Fully remote freelance role; you will need a laptop, internet connection, time, and enthusiasm.

You'll review incoming project submissions, help suggest additional freelance talent for projects ... A strong understanding of the gaming industry, art pipelines, and freelance workflows will help you succeed ... Ability to manage multiple conversations and tasks at once with speed and accuracy Familiarity with freelance ... Review incoming project needs, work with studios on completing art briefs, and help suggest additional freelance

At Toloka, we connect smart, curious people from around the world with freelance online tasks that train ... Take part in a part-time, remote, freelance project that fits around your primary professional or academic ... clarifying questions when needed Genuine interest in technology and artificial intelligence Why this freelance

- Warsaw (freelance) Italian Localization Games Tester - Warsaw (Freelance) French Localization Games ... ) Simplified Chinese Localization Games Tester - Warsaw (Freelance) Polish Localization Games Tester ... Tester - Warsaw (Freelance) Localization Game Tester with Danish, Finnish or Swedish We’re unlocking ... English Content Writer - AI Trainer Traditional Chinese Localization Games Tester - Warsaw (Freelance ... languages) Localization Games Tester with Brazilian Portuguese, European Portuguese or Mexican Spanish Freelance

Join to apply for the AI Engineer (freelance) role at PwC Polska 2 days ago Be among the first 25 applicants ... Join to apply for the AI Engineer (freelance) role at PwC Polska Get AI-powered advice on this job and ... We are looking for: AI Engineer (freelance) We are developing an advanced tourism platform that utilizes

We’re currently looking for a freelance Linux Embedded Engineer to join a specific IoT project to work ... The work is fully remote, with flexible hours, and we are open only to B2B/freelance cooperation. ... protocols knowledge of RTOS (e.g., FreeRTOS) scripting in Bash or Python Practical info Type of contract: freelance

Software Developer (Python) - AI Trainer Freelance Software Developer (Python) - AI Trainer Freelance ... Software Developer (C++) - AI Trainer Freelance Software Developer (C++) - AI Trainer Freelance Software ... Developer (Python-Rust) - AI Trainer (fluent Ukrainian) DevOps Engineer (Poland) Freelance Generative ... Graduate/Junior Software Engineer (Full-time) Deep Learning Engineer/Machine Learning Engineer Freelance ... GenAI Developer - Prompt Engineering & Data Workflows Full-stack Software Engineer (Nest.js + React) Freelance

Overview We’re currently looking for a freelance Linux Embedded Engineer to join a specific ongoing IoT ... The work is fully remote, with flexible hours, and we are open only to B2B/freelance cooperation. ... Practical info Type of contract: freelance / B2B only Location: 100% remote Rate: 150-250 PLN net / hour

Competitive freelance rate. Opportunity to collaborate with a dynamic and creative team. ... We are looking for two talented and creative Graphic Designer to join our team on a freelance basis.

Summary Freelance Python/React Developer (Remote – Poland)Salary: 28000€-34000€/brutto yearType of contract ... energy efficiency and accessibility.We're now expanding our international IT team and looking for freelance ... team.Payed enterprise trips to Spain.Cutting-edge stack: AI, big data, custom-built ERP/CRM.Flexibility: freelance

About LoxalaLoxala is a global freelance marketplace, academy, and community built to empower top talent ... consistent, reliable delivery.Why Work With UsBe part of a fast-growing SaaS platform reshaping the global freelance ... industry.Collaborate with an ambitious, international team with a clear mission and strong values.Remote, flexible freelance

This is a full-time freelance role, and you must be located within the CET time zone ±2 hours. ... Mid/ Senior Presentation Designer Freelance Graphic Designer / Web Designer (E-commerce) Mid/ Senior ... Presentation Designer Freelance Graphic Designer - Adobe Ilustrator / InDesign - UN Agency #J-18808-