BIG PLAY IS ON
Senior Full-stack Engineer
Location
Europe
Posted
73 days ago
Salary
0
Seniority
Senior
Job Description
Senior Full-stack Engineer
Playson
• Design, develop, and maintain backend services for promotional features in Node.js/TypeScript. • Build and enhance frontend UI with Pixi.js and Phaser.js, ensuring usability and performance. • Optimize existing systems for high throughput, low latency, and scalability. • Lead technical decisions, contribute to our SaaS solutions and platform evolution. • Collaborate with a distributed, cross-functional team; proactively propose improvements. • Ensure code and architectural excellence via reviews, SDLC best practices, and automation. • Own quality: write unit, integration, and e2e tests; drive observability and performance. • Participate in on-call rotations to help maintain reliability and availability.
Job Requirements
- 5+ years of professional development with Node.js & TypeScript.
- Strong understanding of asynchronous patterns (Promises, streams, RxJS preferred).
- Experience with messaging systems (Kafka, RabbitMQ) and distributed systems.
- Solid work with RDBMS (MySQL/PostgreSQL), NoSQL (DynamoDB/MongoDB/Redis), and columnar/analytics DBs (ClickHouse/Redshift).
- Proven delivery of production-ready solutions, including testing (unit/e2e), observability, and performance tuning.
- Hands-on with Kubernetes and containerization (Docker).
- Good grasp of system design, API design, and network protocols.
- Commercial experience with React (and Redux or modern alternatives), ideally experience with Pixi.js and Phaser.js.
- Comfortable with HTML/CSS/SCSS (BEM/SMACSS or similar methodologies).
- Ability to translate product requirements into usable, accessible UIs.
- Degree in Computer Science or related field (or equivalent experience).
- Excellent knowledge of CS fundamentals, database theory, and code-testing practices.
- Experience building and reviewing clean, testable, performant code across the stack.
Benefits
- Competitive Salary: We offer a competitive salary in EUR, subject to annual performance reviews
- Quarterly Bonuses: Benefit from a transparent and systematic quarterly bonus system
- Flexible Schedule: We offer a flexible work schedule to accommodate your needs
- Remote Work Option: Choose to work remotely, providing greater flexibility and comfort
- Medical Insurance: Receive comprehensive medical insurance for both you and a significant other
- Financial Support for Life Events: We provide financial support during special life events
- Unlimited Paid Vacation: Enjoy unlimited paid vacation leave
- Unlimited Paid Sick Leave: Take unlimited paid sick leave whenever necessary
- Professional Development: Get reimbursement for professional development courses and training
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ABOUT 4MATIV TECHNOLOGIES, INC. 4MATIV Technologies manages multi-modal mobility for school systems nationwide with technology to expand options and enhance service. We envision a future where all children have access to the learning opportunities that maximize their potential, and we are reimagining transportation to accelerate student outcomes. We partner with schools to improve service, safety, and holistic sustainability, ensuring all students have access to the right ride. Currently, we manage transportation for over 50 school districts across cities including Houston, Indianapolis, Minneapolis-St. Paul, and Phoenix, simplifying operations and expanding services for families. Every school day, 4MATIV manages outsourced vendors and operates a contact center supporting more than 22,000 student trips across over 1,000 routes for schools across the country. Our team is committed to: - Working shoulder-to-shoulder with our clients as a mission-aligned and trusted partner - Building user-centered products to create lasting impact for districts and students - Valuing diversity of perspectives and experiences - Care for every detail and outcome - Highest standards of service and safety - Constant learning and improvement POSITION OVERVIEW The Lead Routing Analyst is responsible for owning and executing day-to-day routing operations for 4MATIV’s school partners, including both summer route design and ongoing in-year route maintenance. This role is deeply hands-on—this individual will spend a significant portion of their time actively building, adjusting, and maintaining routes to ensure accurate, efficient, and high-quality transportation service. In parallel, this role expands beyond execution to include analyzing routing performance, identifying optimization opportunities, and shaping routing strategy. The Lead Routing Analyst will translate complex routing data into clear recommendations, model tradeoffs, and support both internal teams and clients in making informed transportation decisions. This individual serves as both a highly reliable routing executor and an analytical problem-solver, with ownership over routing quality, system performance, and continuous improvement. The ideal candidate is analytical, systems-oriented, and highly detail-driven, with a strong interest in solving complex operational problems and improving outcomes at scale. LOCATION - Remote RESPONSIBILITIES Route Execution & System Ownership - Create, modify, and maintain transportation routes in routing software, ensuring accuracy and compliance with district policies, transportation regulations, and service-level agreements - Execute routing updates and change requests with a high degree of precision and ownership - Manage data flows between systems, including imports/exports and validation of routing-related datasets - Ensure all route assignments are properly documented and communicated to relevant stakeholders. Routing Strategy & Optimization - Analyze routing configuration to identify opportunities to improve efficiency, reduce cost, and enhance service quality - Develop and model routing scenarios (e.g., bell time changes, stop consolidation, capacity adjustments) and recommend optimal approaches - Partner with Account Managers and internal stakeholders to design routing strategies aligned to school priorities and constraints - Support and, over time, lead client-facing conversations on routing strategy, including explaining tradeoffs and cost drivers Performance Management & KPIs - Define, monitor, and analyze key routing performance indicators (e.g., route efficiency, utilization, on-time performance, cost per rider) - Identify trends, inefficiencies, and areas for improvement, and drive action against them - Build and maintain reporting to track routing performance and inform decision-making - Escalate risks and proactively recommend solutions to improve system performance - Contribute to improving internal routing processes, standards, and documentation over time Data Quality & Analytical Rigor - Identify and resolve data quality issues related to student assignments, stop locations, and transportation parameters - Use Excel (or similar tools) to perform detailed analysis, modeling, and validation of routing decisions - Support the development of more scalable analytical approaches, including automation where appropriate Collaboration & Operational Support - Partner closely with other Routing Coordinators to support both day-to-day execution and ongoing optimization of transportation routes - Coordinate with Account Managers and provide real-time routing support to troubleshoot and resolve operational issues impacting service, efficiency, or student experience - Serve as a key connector across teams, ensuring routing decisions are clearly communicated and effectively executed
Role Description We are currently seeking a Full Stack Engineer to join our team and support a highly complex, data-intensive system for one of our clients in the United States. This role requires a strong technical foundation, excellent problem-solving skills, and the ability to work with large datasets in a secure and high-performance environment. Qualifications - 5+ years of experience with JavaScript. - 2+ years of experience with Node.js in production environments. - Strong experience with TypeScript (strong typing, interfaces, generics, clean architecture). - Experience with Vue.js (Vue 2 or 3). - Solid experience with SQL databases (query optimization, data modeling, debugging large datasets). - Experience with automated testing: unit, integration, API tests. - Strong understanding of backend architecture, data flows, and performance optimization. Benefits - Salary in USD. - 100% Remote. - 25 days of Paid Time Off per year. - 8-hour workday, with flexible hours. - Welcome kit from the brand. - High-end hardware provided: laptop, mouse, & headphones. - English classes, virtual library and online courses. - Contribution bonuses.
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