Full-Stack Developer
5Blue Software
Join a fast-growing product company building an AI-powered B2B SaaS platform that helps organizations worldwide automate security, risk, and compliance workflows. The platform combines intelligent automation, real-time monitoring, and AI-driven insights to replace slow, manual processes with a continuously up-to-date, audit-ready experience. It serves startups, scale-ups, and enterprises, and is recognized by its customers and partners for both technology and a partnership-driven approach.
Requirements:
5+ years of backend development in Node.js ( C# , Java , or C++ experience also relevant), plus solid working experience with React .
Proven production experience with microservices architecture .
Strong skills with both relational and non-relational databases , including data modeling and query optimization.
Solid experience designing, building, and integrating REST APIs .
Familiarity with AWS or a similar cloud provider.
Ability to own a module or technical project end to end and drive it independently.
Strong software design fundamentals (principles, patterns) and a self-driven approach to problem-solving.
English — Upper-Intermediate level and above, with strong verbal and written communication.
Knowledge of containerization tools ( Docker , Kubernetes ) is a strong advantage.
Nice to have:
Experience developing high-scale SaaS solutions .
Deep understanding of CI/CD and QA automation processes.
Maturity with AI-assisted development — able to review and understand generated code rather than relying on it blindly.
Academic background in Computer Science , Software Engineering , or a related field.
Responsibilities:
Design and build scalable backend services using microservices and containerized solutions on AWS .
Participate in architectural decisions, research, and design to deliver robust, maintainable software.
Model data and build/integrate REST APIs with third-party systems; contribute to frontend where needed.
Work directly with Product and stakeholders to shape requirements and translate them into well-scoped tasks.
Mentor teammates, promote knowledge sharing, and uphold coding standards.
Continuously improve platform performance, scalability, and maintainability while keeping up with industry trends.
What we offer:
Flexible Work Environment: Opportunity to work remotely.
1:1 English Classes: Individual English language training to enhance your communication skills.
Premium Medical Insurance: Comprehensive health insurance to ensure your well-being.
Great Team: Work with a supportive, collaborative, and dynamic international team.
Equipment Provided: All necessary equipment supplied for efficient job performance.
Accounting Support: Full accounting assistance in Ukraine and Poland.
Paid Time Off: 18 days of Annual Vacation and 7 days of Sick Leave without a doctor's note.
Flexible payment system , which allows you to withdraw funds in one click and has about twenty withdrawal options.
- ...professional teams, software product quality assessment, and “all-things-digital” solutions, is seeking a highly skilled and experienced Full-Stack Engineer to join our dynamic team on a full-time basis. About the project: Building a neutral, AI-powered logistics...SuggestedFull time
- About Spate At Spate, we use data science to predict the next big consumer trend in beauty, personal care, wellness & functional food. Spate was founded in 2018 by Yarden Horwitz & Olivier Zimmer, two ex-Googlers who led the trendspotting division at Google and uncovered...SuggestedTemporary workShift work
- ...professional teams, software product quality assessment, and “all-things-digital” solutions, is seeking a highly skilled and experienced Full-Stack Engineer to join our dynamic team on a full-time basis. About the project: Building a neutral, AI-powered logistics...SuggestedFull time
- ...abstract concepts on this team, they're daily considerations What we're looking for Experience shipping production backend or full-stack features, with growing autonomy and less need for hand-holding on the basics Previous experience coding in Python in a...SuggestedFull timeRemote work
- About the role Senior Frontend Engineers work across our product domains. Your team match will reflect your strengths, interests and where you can contribute most. Across every team, the model is the same: small, autonomous groups, a weekly release cycle and ownership...SuggestedFull time
- ...offerings into e-commerce and financial platforms across multiple markets. Responsibilities: Design and build high-performance services: Develop and maintain scalable APIs ( gRPC and REST ) powering core insurance services. Own end-to-end delivery: Drive microservices from...Full time
- ...Design and evolve services for performance , scale , resilience and data integrity . Make clear technical decisions with a full understanding of the constraints, alternatives and trade-offs. Keep code and systems maintainable as products and requirements...Full time
- ...direction across product teams while remaining close to the code. Your scope will include shared libraries, platform capabilities, developer tooling and difficult product-system problems. This is not a people-management role. Its leverage comes from technical...Full time
- ...concurrency and high-performance design . A track record of improving reliability , scalability , observability or developer effectiveness through durable mechanisms. The ability to influence technical direction through evidence, clarity and trusted execution...Full time
- ...Responsibilities • Design, develop and maintain backend services, APIs and integration components using .NET technologies. • Analyze business and technical requirements and deliver scalable, maintainable solutions. • Collaborate closely with Business Analysts, QA...Full time
- ...Technical architecture & hands-on implementation Own the full pipeline: streaming speech-to-text , LLM field extraction ,... ...SES ; token economics and per-call cost engineering. Full-stack pragmatism: strong Python ; enough TypeScript / Chrome-extension...Temporary work
- We are hiring on behalf of our client, a growing, dynamic organization is seeking a skilled and detail-oriented Software Engineer - Backend & Data to join its team. This role will play a critical part in driving operational success, executing key initiatives, and contributing...Full timeFlexible hours
- ...builder spirit and with our centre of gravity in Berlin. Along the way, we’ve: Cultivated a community of more than 650,000 active developers and builders Earned 190K+ GitHub stars , making us one of the world’s Top 40 most popular projects Backed by top investors...Full timeRemote workFlexible hours
- ...Key Responsibilities: Develop a Data and Cloud migration framework that accelerates the migration of the on-premise software assets to Snowflake Data and Azure Cloud platforms. Assist with the migration of the on-premise software assets to the Cloud platforms...Full time
- ...ownership. Every bug you catch and every process you improve has massive impact—reaching millions of players globally. Plus, you’ll enjoy full remote flexibility, generous leave, and the chance to build something extraordinary alongside brilliant, like-minded people who are...Full timeRemote workWorldwide
- ...order to increase system stability, performance and security; Develop, maintain and improve automation for all our systems;... ...~ Experienced in using monitoring tools (Grafana, Statsd, ELK stack, Prometheus, NewRelic, etc.); ~ Good knowledge of networking services...Permanent employmentFull timeFlexible hours
- About the project: This project offers a unified platform that consolidates vulnerability, threat, and asset data, enabling organizations to effectively prioritize and remediate critical exposures. By integrating information from over 150 security tools, it provides a...Full timeWork from home
- ...technical expertise, strong client-facing skills, and a passion for developing people. This role sits at the intersection of engineering... ...decision-making Strong expertise in the Microsoft technology stack (including Azure, .NET, etc.) combined with hands-on experience...Full time
- ...quality has real consequences and where you've had to build the infrastructure, not just use it. The opportunity Operate as a full-stack data analyst within the Pro team, owning your domain completely while collaborating closely with colleagues across the pod....Full timeRemote work
- ...engineering standards, performance, and security practices across the stack. Skills you should HODL ~5+ years of software engineering... ...production systems at scale. ~ Proficiency in building full-stack applications using one of the following: TypeScript , Rust...Full timeRemote workWorldwide
- About the role We are building a high-scale payment orchestration platform that processes millions of financial transactions every month across multiple providers, regions, and products. We are looking for an experienced OpenSearch Engineer to own and scale our AWS OpenSearch...Full time
- NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization, apply now! At NTT DATA we know that with the right people on board, anything is possible...
- Zyte is seeking a Senior IT Systems Engineer with strong Business Systems and Automation experience to architect and operate the internal technology ecosystem that powers our global company. This role goes beyond endpoint management and traditional IT support — it treats...Full time
- ...building internal CLI tools for common IT and business workflows developing small internal services that integrate the SaaS platform... ...we want you to automate it. Cutting Edge: Work with a tech stack that mirrors our production environment—modern, fast, and open-...Full timeRemote work
- Overview The Identity and Access Management Systems Engineer is responsible for supporting and optimizing IAM systems to ensure the integrity and availability of authentication, authorization, LDAP-related services and PKI. This position will work with peer service...Remote work
- ...accurate planning and estimation efforts, utilizing project methods and tools. Proficiently gather requirements and organize/present developed features for clients. Execute complex activities within the current methodology and quality standards, showcasing success...Full time
- ...Project Management, EDC vendors, clients and third-party vendors) to provide status updates and gather requirements, ensure database is developed, maintained, managed, and that it complies with regulatory guidelines. Responsible for leading the operational study team and...Full timeContract workWork at office
- ...and structure scientific datasets with clear technical context. Interpret material properties, behaviour, and testing results. Develop realistic case studies and engineering scenarios. Explain complex materials concepts in clear written form. Review scientific...FreelanceRemote work
- Role Overview: As a Customer Reliability Engineer, you will own the reliability, availability, and operational excellence of iPiD's production platforms. From monitoring and automation to deployments and incident management, you will build and maintain the practices that...Full time
- About Us Tecknoworks is a global technology consulting company. At our core, we embody values that define who we are and how we operate. We are curious, continuously seeking to expand our understanding and question conventional wisdom. Fearlessness drives us, propelling...Full time
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Full-Stack Developer. Be the first to apply!
















