{"id":2855847,"url":"https://alion.io/job/s-pro-senior-full-stack-developer-node-jsreact-with-banking-background","title":"Senior Full-Stack Developer (Node.js/React) with banking background","company":{"id":692134,"name":"S-PRO","domain":"s-pro.io","url":"https://alion.io/company/s-pro-3","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Recruitee","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Warsaw, Poland"],"countries":["PL"],"hiring_countries":["PL"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":59000,"max_usd":95000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":230},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"Material UI","optional":false},{"name":"Nest.JS","optional":false},{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"React Query","optional":false},{"name":"React.js","optional":false},{"name":"TypeORM","optional":false},{"name":"TypeScript","optional":false},{"name":"Valtio","optional":false},{"name":"Amazon S3","optional":true},{"name":"AWS","optional":true},{"name":"Datadog","optional":true},{"name":"Docker","optional":true},{"name":"Helm","optional":true},{"name":"JavaScript","optional":true},{"name":"Kubernetes","optional":true},{"name":"Smart Contracts","optional":true},{"name":"Terraform","optional":true},{"name":"Tokenization","optional":true}],"status":"live","first_seen_at":"2026-10-19T13:17:54Z","employer_posted_date":"2026-10-19","last_verified_at":"2026-10-20T15:03:12Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"S-PRO, a top-tier Digital Innovation and Software Engineering company. We specialize in providing cutting-edge services for fast-growing businesses and enterprises, with a strong focus on Finance, Renewable Energy and Healthcare domains and expertise in AI, Blockchain and Data Science. Our team of over 200 dedicated professionals works tirelessly across our global offices to develop innovative digital solutions that drive sustainable business value and increase our client’s competitiveness in a dynamic digital landscape.\nProject description: The product is one of the first licensed digital asset banks powered by Blockchain. Our team is covering the delivery part of one of the core company’s services. It allows in a very simplified manner, process of capital raising for companies and investors providing the creation of new assets, manage offerings, buy, trade and earn crypto to future-proof your investment strategy.\nRequirements\nRequirements:\n5+ years of experience as a FullStack Developer;\n\nExperience with fin-tech projects or integrating with payment systems;\n\nStrong knowledge of Node.js, TypeScript, and NestJS;\n\nStrong knowledge of React, React Query, Valtio, MUI;\n\nExperience with PostgreSQL (TypeORM or other ORM solutions);\n\nStrong experience with message brokers (Kafka);\n\nNice to have Docker, Kubernetes experience;\n\nExperience in the infrastructure (terraform, helm charts);\n\nExperience with observability/monitoring (datadog or similar);\n\nHands-on experience with AWS services (S3, SES, RDS);\n\nKnowledge of software development processes such as testing, code review, debugging, estimation, and production support;\n\nAbility to independently analyze requirements and implement solution;\n\nGeneral understanding about blockchain (tokenization, smart contracts, how to handle blockchain transactions);\n\nDesign patterns and algorithms knowledge.\n\nResponsibilities:\nDevelop and maintain end-to-end features across the backend (Node.js, NestJS) and frontend (React, MUI);\n\nBuild event-driven services with Kafka and design PostgreSQL data models for financial operations;\n\nIntegrate with payment providers and blockchain infrastructure (tokenization, smart contracts, transactions);\n\nContribute to infrastructure (AWS, Terraform, Helm, Kubernetes) and monitoring (Datadog);\n\nAnalyze requirements, propose solutions, and provide estimates;\n\nWrite tests, take part in code reviews, and support production;\n\nCollaborate with product, QA, and DevOps teams.\n\nWhat we offer:\nLong team focus: we create an environment of transparent communication, and minimal bureaucracy, which leads to long-term relationships.\n\nDevelopment of niche expertise: we are working in several niches, such as FinTech, healthcare, and logistics. Therefore, our employees can develop their own expertise in these domains.\n\nContinuous learning: we create employee development plans / personal roadmaps /quick promotion processes.\n\nInternal career development: 80% of our current executives were promoted to those positions within S-PRO. We encourage initiative. If a person wants to set new challenges and grow, we will definitely support them.\n\nBenefits and perks:\nFlexible schedule.\n\nRemote work model.\n\nMedical insurance\n\nPaid vacations\n\nPaid Sick-leaves.\n\nPaid State holidays.\n\nBy submitting your application for this position, you consent to the processing of your personal data for recruitment purposes in accordance with applicable data protection laws. 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