612 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.

Overview Remote • Freelance Location: Remote Job Type: Freelance Job Description Hot Iron Health is seeking ... a Freelance Financial Modeling Consultant with expertise in developing robust financial models for the

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 / Part-TimeAre you passionate about digital growth, performance marketing ? ... Freelance Online Growth Strategist (English-Speaking, Based in Poland) Location: Poland (Remote) Type ... Role OverviewAs a Freelance Online Growth Strategist, you'll design and execute growth campaigns ... What We OfferFlexible freelance arrangement with full remote freedom.Opportunities for long-term collaboration

We're Hiring Unreal Engine 5 Developer (Freelance | Remote)About Pleasart StudiosPleasart Studios ... role may evolve into a long-term position as part of our core team.Role DescriptionWe are seeking a Freelance ... Contract Type: Freelance (Demo Phase) Work Model: Remote Industry: Video Games / Game Development / Unreal ... Developer to help us build the core gameplay mechanics and systems that will bring our vision to life.This freelance ... experience.Your work will directly define the core gameplay of our upcoming title.Opportunity to transition from freelance

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

Contract Type: Freelance (Project-Based / Hourly) Location: Fully Remote (with optional international ... ) Industry: Think Tank / Policy Advisory / Research / AdvocacyOverviewMF PRO is seeking experienced freelance

Contract Type: Freelance (Project-Based / Hourly) Location: Fully Remote (with optional international ... ) Industry: Think Tank / Policy Advisory / Research / AdvocacyOverviewMF PRO is seeking experienced freelance

Freelance Guidewire Developer (PolicyCenter) – Poland (Remote/Hybrid)Engagement:B2B / Freelance ContractStart

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

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 ... What You Bring Over 2 years of experience in PPC or digital marketing (freelance or agency).

Why This Role Freelance contract with a strategic impact project from day one. ... They are looking for a senior SAP CoE Lead / Manager (freelance) to guide the early setup and strategy ... ) Location: Poland (Hybrid / Remote flexibility) Languages: English & Polish (fluent) Engagement: Freelance ... Consultant - Central & Eastern Europe @ RED Global Job Title: SAP Center of Excellence (CoE) Lead / Manager (Freelance

Benefits Why this freelance opportunity might be a great fit for you? ... AI Pilot Vibe Coding Assistant (Freelance) 2 days ago Be among the first 25 applicants This opportunity ... Mindrift is looking for passionate freelance contributors to join the Tendem project (\"https://tendem.ai ... About The Role This is a freelance role for a project, and your typical tasks may include: Your mission ... Our freelance role is fully remote so, you just need a laptop, internet connection, time available and

Digital Marketing Specialist - Freelance This role offers an excellent opportunity for a marketing specialist ... environment Reliable, organized, and detail‐oriented approach to tasks About Twine Twine is a leading freelance ... Our Mission Twine's mission is to empower creators and businesses to thrive in an AI‐driven, freelance‐first

*This is a freelance position with an estimated allocation of 30 hours per week. ... *This is a freelance position with an estimated allocation of 30 hours per week. ... We’re looking for a creative, AI-savvy Freelance Social Media Manager (SMM) who loves crafting content ... Understanding of B2B SaaS marketing and content creation We’re looking for a creative, AI-savvy Freelance

AI Engineer (freelance) Join to apply for the AI Engineer (freelance) role at PwC Polska.

Overview We're currently looking for a freelance Linux Embedded Engineer to join a specific ongoing ... 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

xfive is on the lookout for a talented WordPress Developer to join our crew (on a freelance basis). ... In this freelance role, you’ll collaborate directly with clients, share ideas, run audits, and help make ... Here’s what makes working with us enjoyable: Freelance freedom: Work with us on a contract basis and

Benefits Contract B2B or freelance agreement. 3-month duration with extension possibility. ... Location: Lublin Employment type: Contract B2B or freelance agreement (3 months, possible extension)

(Senior) Illustrator - Freelance #J-18808-Ljbffr ... (Senior) Illustrator - Freelance# (Senior) Illustrator - FreelanceDesign### Opis stanowiskaNetguru is ... dodana: 05.12.2025(Senior) Illustrator - Freelance140 PLNNetto za godzinę - B2B(Senior) Illustrator - Freelance