freelance English-speaking jobs in Suwałki

The Valuation Control Group Manager supervises valuation control of a business, including validation of market data, reporting, and analysis. Responsibilities include developing valuation methodologies, ensuring regulatory compliance, and managing escalation of pricing issues. The role requires a Bachelor's or Master's degree in finance, economics, or a quantitative field, and 10+ years of experience in valuation, risk, or product control.

Fullstack Engineer to design, develop, and maintain web applications using React, Java, and HTML. Experience in Agile and DevOps environments required. Knowledge of FX trading or banking products is beneficial. Excellent communication and problem-solving skills are essential. Fluent English required.

Senior Backend Engineer to architect and scale a high-performance Loyalty Points Engine in Go and Kafka. Experience with distributed systems, microservices, gRPC, PostgreSQL, Kubernetes, and AWS required.

Senior Product Owner with 5+ years of experience in software delivery. Must have hands-on experience with AI tools and demonstrable workflows beyond single-prompt usage. Responsibilities include requirements elicitation, backlog management, and stakeholder alignment. Strong structured writing and client-facing delivery experience required.

Build and maintain systems used by millions, integrating AI into your development workflow. Work across diverse stacks, simplifying architectures and codebases.

Designs, implements, and productionizes agentic components for the HERE Agentic AI Framework. Translates problem statements into technical solutions and drives framework adoption through SDKs, APIs, documentation, and support. Leads technical reviews, identifies risks, and mentors engineers. Requires extensive experience delivering production-grade AI/ML systems and proficiency in architecting extensible software frameworks.

The Expedition Planner plans transportation orders, optimizes truckfill and weightfill, and monitors stock levels. Responsibilities include creating transport orders, updating orders, and collaborating with production planning, logistics, and warehouse teams.

Python Engineer to design and develop a large-scale credit risk modeling toolkit. Collaborate with risk modellers to ensure effective use of the toolkit and gather feedback for improvements. Build and maintain robust testing frameworks and support the development of prototypes.

Develops and implements automated test processes for power electronic hardware components and systems. Writes test scripts, uses test equipment, and debugs hardware and test setups. Collaborates with software developers and engineers to ensure product quality. Requires a BSc/MSc in Electronics/Electrical Engineering and experience with power electronic converters/power supplies development. Fluency in English is required.

Design and implement Salesforce Marketing Cloud solutions. Build and optimize customer journeys and automations.

Scrum Master & Project Manager needed to support technology teams in the gaming industry. Will develop agile processes, act as a JIRA expert, and foster a collaborative team environment. Requires strong understanding of agile methodologies, excellent communication skills, and experience with Jira. Agile certification required.

Junior PtP Analyst will ensure accurate and timely delivery of regional finance processes. Responsibilities include financial reporting, resolving queries, process improvement, and user training. Requires a finance degree, strong analytical skills, and fluency in English.

System Engineer to design, run, and evolve web hosting infrastructure. Responsibilities include developing features, deploying infrastructure using IaC, and troubleshooting performance issues. Requires strong Linux experience, Ansible proficiency, and scripting skills in Python or Go.

Senior Software Engineer to ensure data validation and assessment by ML models. Optimize ML operations, expand event pipeline capabilities, and reduce cloud resource costs.

Senior Automation Tester for a payments platform leader. Design, build, and maintain automated test solutions using Java, JUnit/TestNG, Selenium/Playwright, REST Assured, and CI/CD tools. 5+ years of automation experience and payment processing knowledge required.

Senior Backend Developer to join Supplier onboarding and Quote Management teams. Develop Python and/or dotnet services, solve business problems, and implement a constraint optimization engine. API design, code quality, and collaboration with commercial teams are key. Must have advanced Python, API design, and software engineering discipline. C# and cloud experience are a plus.

Frontend Engineer with 3+ years of experience in JavaScript, TypeScript, CSS, and React. Must be fluent in English and able to work independently.

Senior Fire Protection Engineer will design and develop fire protection systems, perform fire hazard analyses, and prepare technical reports and documentation. Must have a Master's degree in Fire Protection Engineering and 8+ years of experience. Strong knowledge of NFPA codes and building/fire protection regulations is required. Must be authorized to work in Poland.

Lead the development and delivery of innovative digital platforms across web, learning, and event environments. Translate business vision into product strategy, ensuring high-quality solutions meet user needs and business objectives. Manage product backlog, collaborate with stakeholders, and oversee the full product lifecycle.

Staff Full Stack Software Engineer will design, develop, and lead technical solutions for churn prevention and international growth initiatives. Requires 12+ years of experience as a backend or full stack engineer with expertise in Golang, Python, and React.