CrawlJobs Logo

Lead Fullstack Engineer

· Job Posted April 12, 2026
Apply Position
Job Link Share

Job Description

Superside is looking for a Senior Fullstack Engineer to join our Staffing team. Our goal is to ensure the right creative talent is matched to the right projects in an automated way. This drives delivery and service quality for our customers by having the right creative talent matched to the right project in a predictable manner. Throughout 2026 we are moving from manual allocation to automated, AI-assisted staffing at scale. You’ll be building interfaces and business logic in our internal tools that make it easy to manage availability and to match people and skills to projects in the best way. We are looking for a builder who is proficient working across the entire stack, with a focus on the Frontend. You are a modern engineer that knows how to choose the right tool for any given job and feels comfortable across multiple programming languages and domains. You know when and where to leverage AI tools to move faster, but have the expertise to stay in control and implement things manually when that’s the best option.

Job Responsibility

  • Lead the development of secure, scalable features focused on staffing automation, resource management, and complex scheduling interfaces
  • Architect and build performant UIs (e.g., interactive timelines, real-time grids) using React, while ensuring the backend logic (Kotlin/Spring) supports them efficiently
  • Use agentic coding tools to accelerate boilerplate and refactoring, allowing you to focus on high-leverage architectural decisions
  • Collaborate cross-functionally with Product and Design to identify manual staffing workflows and turn them into seamless software experiences
  • Enhance system performance through UI optimizations (rendering large datasets) and database improvements
  • Drive technical strategy and best practices, specifically regarding how we visualize complex data for our operations team
  • Identify repeatable patterns across engagements and help codify them into reusable solutions and platforms

Requirements

  • 6+ years of full stack development experience, with strong expertise in FE framework
  • Strong understanding of software architecture, design patterns, and scalable system development
  • Deep knowledge of testing strategies, including unit, functional, and end-to-end testing
  • Ability to solve complex technical challenges creatively and efficiently
  • Excellent communication skills with fluency in English (verbal and written)
  • Self-motivated and autonomous, with a proactive, problem-solving mindset
  • Excitement for AI-powered product development, with a desire to integrate AI-driven automation into creative workflows
  • Proactive use of agentic coding tools as part of your workflow

Nice to have

Superside uses React on the FE and Kotlin with Spring Boot on the BE, so these are beneficial

What we offer

  • Remote-first work
  • Global community spanning 60+ countries
  • Fast-paced, high-energy environment with truth-seeking teammates
  • Trust, collaboration, and continuous learning
  • Influence our product like a startup while enjoying the stability of a thriving scale-up
  • Career advancement through growing responsibility and mentorship
  • Continuous learning opportunities
  • Constant mentoring
  • Leadership development efforts

Looking for more opportunities?

Search for other job offers that match your skills and interests.

Similar Jobs for

Lead Fullstack Engineer

8 matching positions

Lead Fullstack Engineer

We are looking for a highly motivated and skilled Lead Engineer with strong UI a...
Location
Location
India , Pune; Chennai
Salary
Salary:
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 12+ years of professional software development experience, with significant hands-on experience in full-stack development
  • Strong expertise in front-end development with demonstrable experience in React
  • Proficiency in core web technologies including HTML5 and CSS3
  • Extensive experience with Java and the Spring Boot framework for building robust back-end applications
  • Proven experience in designing, developing, and deploying microservices
  • Hands-on experience with real-time messaging systems (e.g., Kafka, RabbitMQ)
  • Solid understanding of relational databases, particularly Oracle and SQL, including schema design, query optimization, and stored procedures
  • Proficiency in containerization using Docker and orchestration with Kubernetes
  • Practical experience with CI/CD platforms, such as Jenkins, for automated build, test, and deployment
  • Experience with cloud deployments on major platforms (e.g., AWS, Azure, GCP)
Job Responsibility
Job Responsibility
  • Design, develop, and implement complex software solutions across the full stack, with a strong focus on both front-end user interfaces and back-end services
  • Develop responsive and highly interactive user interfaces using modern JavaScript frameworks such as ReactJS
  • Build and maintain scalable and high-performance back-end services using Java and the Spring Boot framework
  • Implement and contribute to microservices architecture, ensuring effective communication and integration between services
  • Integrate real-time messaging systems to handle high-throughput data processing and ensure low-latency communication within applications
  • Collaborate with product owners, UI/UX designers, and other engineers to translate business requirements into technical designs and functional features
  • Design, develop, and optimize database schemas and queries for relational databases, with strong knowledge of Oracle and SQL databases
  • Utilize containerization technologies (Docker) and orchestration platforms (Kubernetes) for efficient application deployment and management
  • Participate in the implementation and maintenance of continuous integration and continuous delivery (CI/CD) pipelines using tools like Jenkins
  • Contribute to cloud deployment strategies and operations, ensuring applications are resilient, scalable, and secure in cloud environments
  • Fulltime
Read More
Arrow Right

Lead AI + Fullstack Engineer

Work on subjects surfaced by the guild, with the mission of introducing as much ...
Location
Location
Salary
Salary:
Not provided
noveogroup.com Logo
Noveo
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years of experience as a fullstack developer — React/Next.js, Node.js/NestJS, TypeScript
  • AI specialist: strong command of Claude via the Anthropic API and AWS Bedrock
  • Able to build autonomous agents, workflows, and POCs
  • Data knowledge is a strong plus (Linear extraction, ticket optimization, etc.) — not a hard requirement
  • Monorepo architecture experience — already identified as a roadmap subject
  • Genuinely passionate about AI and agentic tooling, independence, proactivity, and a high sense of responsibility
  • English close to C1 or higher
  • France time-zone, with the ability to come to the office 2 days every 2 months
Job Responsibility
Job Responsibility
  • Work on subjects surfaced by the guild, with the mission of introducing as much AI as possible into development processes, alone or with senior Engineer from the Guild
  • Co-build the AI roadmap with the CTO, then own its execution
  • Make technical recommendations and prioritize subjects — final validation stays with the CTO
  • Produce POCs and internal tooling, not product features
  • Collaborate continuously with guild developers via a weekly call and ongoing integration
What we offer
What we offer
  • A competitive salary
  • Paid vacation and sick leave
  • Working on exciting projects with a team of professionals
  • Opportunities for learning and practicing new technologies
  • internal training
  • Participating in inner meetups and permanent experience exchange with colleagues
  • Well-defined development processes and methodologies
  • English and/or French language learning for free with internal teachers within working hours
  • Reimbursement of medical fees, massage, or sports
Read More
Arrow Right

Lead Software Engineer - Fullstack

As a Lead Software Engineer in OutSystems R&D, you’ll help shape the experience ...
Location
Location
Portugal; United Kingdom
Salary
Salary:
Not provided
outsystems.com Logo
OutSystems
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Proven experience (7+ years) as a software engineer solving complex problems, and building high-impact products or platforms
  • Strong skills in TypeScript/JavaScript and modern web development frameworks (e.g., React, Angular, or similar)
  • Strong skills in C# (.NET Core)
  • Solid understanding of software architecture, design patterns, and scalability principles
  • Experience with cloud-native development (e.g., microservices, containers, CI/CD pipelines, monitoring, distributed systems)
  • Knowledge of performance optimization, debugging complex issues, and ensuring product reliability at scale
  • Excellent collaboration skills, with the ability to work across product, design, and engineering teams
  • Passion for delivering outstanding developer experiences and helping others build great software
  • Good communication skills and fluency in English
Job Responsibility
Job Responsibility
  • Drive the solution design, implementation, and maintenance of robust, delightful, scalable, and secure core features for our developers building apps on OutSystems
  • Collaborate with product managers, UX designers, and other engineers to deliver solutions that balance functionality, usability, scalability, and high degree of automation
  • Own features end-to-end: from architecture and technical design to alignments, coding, testing, deployment, and monitoring in production
  • Drive engineering excellence by promoting clean code practices, automated testing, performance optimization, and continuous delivery
  • Mentor and support other engineers, fostering knowledge sharing and a culture of innovation
  • Stay up to date with emerging technologies and bring forward ideas to continuously improve our engineering
  • Fulltime
Read More
Arrow Right

Sr Lead Java Fullstack Software Engineer

The Applications Development Technology Senior Lead Analyst is a senior level po...
Location
Location
Canada , Mississauga
Salary
Salary:
145100.00 - 217700.00 USD / Year
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 10+ years of relevant experience
  • Experience in implementing projects
  • Experience in systems analysis and programming of software applications
  • Demonstrated Subject Matter Expert (SME) in area(s) of Applications Development
  • Demonstrated knowledge of client core business functions
  • Demonstrated leadership, project management, and development skills
  • Relationship and consensus building skills
  • Bachelor's degree/University degree or equivalent experience
  • 10+ years of experience in full-stack web application development
  • Strong backend development experience with Java and Spring Boot (REST APIs, security concepts, performance, and scalability)
Job Responsibility
Job Responsibility
  • Lead integration of functions to meet goals, deploy new products, and enhance processes
  • Analyze complex business processes, system processes, and industry standards to define and develop solutions to high level problems
  • Provide expertise in area of advanced knowledge of applications programming and plan assignments involving large budgets, cross functional project, or multiple projects
  • Develop application methodologies and standards for program analysis, design, coding, testing, debugging, and implementation
  • Utilize advanced knowledge of supported main system flows and comprehensive knowledge of multiple areas to achieve technology goals
  • Consult with end users to identify system function specifications and incorporate into overall system design
  • Allocate work, and act as an advisor/coach developers, analysts, and new team members
  • Influence and negotiate with senior leaders and communicate with external parties
  • Appropriately assess risk when business decisions are made
  • Fulltime
Read More
Arrow Right

Fullstack Engineer (C# + Reactjs)

Location
Location
Malaysia , Kuala Lumpur
Salary
Salary:
Not provided
nintex.com Logo
Nintex
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 7+ years in software engineering, with a strong track record of delivering clean, high-quality code
  • Proficient in full stack development with experience in front-end frameworks like React, back-end development using C#, .NET 6/above, and Cloud technologies like Azure, CosmosDB, Kafka etc.
  • Excellent communication skills to collaborate across teams and lead impactful engineering conversations
  • Ability to guide technical discussions, drive decisions, and mentor peers when needed
Job Responsibility
Job Responsibility
  • Design and implement robust full stack solutions using modern web technologies, with a strong emphasis on scalable, maintainable code
  • Contribute to the continuous improvement of our platforms by driving best practices in code quality, testing, automation, and performance optimization
  • Code with Purpose: design and implement complex features with clean, efficient, and scalable code, acting as a primary resource for maintaining and enhancing critical systems
  • Technical Problem-Solver: resolve challenges head-on and deliver practical, hands-on solutions
  • Team Knowledge Sharer: embrace new tools quickly and share insights to uplift the team’s technical capabilities and productivity
  • Collaborative Coder: actively participate in code reviews, offering actionable feedback and collaborating on technical approaches
  • Proactive Contributor: be involved in daily team ceremonies like stand-ups, sprint planning, and retrospectives, and provide updates and seek input
  • Focused on Delivery: balance writing quality code with shipping it efficiently, ensuring the team’s goals are met
  • Lead & Share Knowledge: stay ahead with emerging technologies and mentor teammates, boosting overall team efficiency and expertise
What we offer
What we offer
  • Global Gratitude and Recharge Days
  • Hybrid working model
  • Flexible, paid time off policy
  • Employee wellness programs and counseling resources
  • Meaningful peer recognition and awards
  • Paid parental leave
  • Invention/patenting assistance
  • Community impact, paid volunteer time, and opportunities
  • Intercultural learning and celebration
  • Multiple tools through which to learn and grow, and an incredible global community
  • Fulltime
Read More
Arrow Right

Senior Fullstack Engineer

We are looking for a passionate Senior Engineer who wants to join our growing te...
Location
Location
Serbia , Belgrade
Salary
Salary:
Not provided
sokin.com Logo
Sokin
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Minimum of 5 years of professional software engineering experience, with a proven track record of end-to-end feature ownership and delivery in production environments
  • Familiarity with modern frameworks, cloud platforms, and CI/CD pipelines that support full lifecycle engineering
  • Strong ability to translate business requirements into technical solutions that are scalable and maintainable
  • Experience managing both the development and operational aspects of software, with a focus on performance, reliability, and scalability
  • Excellent communication skills with the ability to effectively collaborate across technical and non-technical stakeholders
  • A proactive mindset for identifying potential improvements, optimizations, and innovations
  • Prior experience in a senior role with responsibilities for mentoring or guiding other team members
  • Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience)
  • Candidates will need to have the right to work in the jurisdiction that they are looking to work in
Job Responsibility
Job Responsibility
  • Own the full lifecycle of software engineering, from initial design and development through deployment, monitoring, and maintenance in production
  • Collaborate with PMs, designers, and cross-functional teams to shape and refine feature requirements, ensuring alignment with business and user needs
  • Lead architectural decisions, ensuring that solutions are scalable, maintainable, and aligned with industry best practices
  • Drive the operational success of features by establishing monitoring, alerting, and support processes to ensure reliability and responsiveness
  • Mentor and guide junior developers, fostering a culture of ownership, accountability, and continuous improvement within the team
  • Participate in code reviews, ensuring that team members adhere to high standards for quality, security, and performance
  • Actively engage in troubleshooting and incident response to address production issues, continually learning from these experiences to improve future resilience
  • Design, develop, and maintain full-stack applications using Python, Flask, FastAPI, AWS, Angular and SQL databases
  • Optimize application performance, troubleshoot and resolve complex technical issues
  • Stay current with industry trends and emerging technologies, advocating for their application when they benefit the organization
  • Fulltime
Read More
Arrow Right

Senior Fullstack Engineer

We are looking for a passionate Senior Engineer who wants to join our growing te...
Location
Location
Canada , Toronto
Salary
Salary:
125000.00 - 165000.00 USD / Year
sokin.com Logo
Sokin
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Minimum of 5 years of professional software engineering experience, with a proven track record of end-to-end feature ownership and delivery in production environments
  • Familiarity with modern frameworks, cloud platforms, and CI/CD pipelines that support full lifecycle engineering
  • Strong ability to translate business requirements into technical solutions that are scalable and maintainable
  • Experience managing both the development and operational aspects of software, with a focus on performance, reliability, and scalability
  • Excellent communication skills with the ability to effectively collaborate across technical and non-technical stakeholders
  • A proactive mindset for identifying potential improvements, optimizations, and innovations
  • Prior experience in a senior role with responsibilities for mentoring or guiding other team members
  • Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent experience)
  • Candidates will need to have the right to work in the jurisdiction that they are looking to work in
Job Responsibility
Job Responsibility
  • Own the full lifecycle of software engineering, from initial design and development through deployment, monitoring, and maintenance in production
  • Collaborate with PMs, designers, and cross-functional teams to shape and refine feature requirements, ensuring alignment with business and user needs
  • Lead architectural decisions, ensuring that solutions are scalable, maintainable, and aligned with industry best practices
  • Drive the operational success of features by establishing monitoring, alerting, and support processes to ensure reliability and responsiveness
  • Mentor and guide junior developers, fostering a culture of ownership, accountability, and continuous improvement within the team
  • Participate in code reviews, ensuring that team members adhere to high standards for quality, security, and performance
  • Actively engage in troubleshooting and incident response to address production issues, continually learning from these experiences to improve future resilience
  • Design, develop, and maintain full-stack applications using Python, Flask, FastAPI, AWS, Angular and SQL databases
  • Optimize application performance, troubleshoot and resolve complex technical issues
  • Stay current with industry trends and emerging technologies, advocating for their application when they benefit the organization
  • Fulltime
Read More
Arrow Right

Senior Fullstack Engineer- Booking team

Joining our 'Booking & Aggregators' team means playing a crucial role in shaping...
Location
Location
France , Paris
Salary
Salary:
Not provided
pro.bsport.io Logo
Bsport
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • You have substantial experience in any current Object-Oriented backend language (familiarity with Python and Django is a plus)
  • You have some experience with ReactJS (or any modern front-end framework)
  • You are professionally proficient in English
  • You take ownership and pride in building exceptional products
  • You're goal-driven, detail-oriented, and an effective communicator
  • You thrive in dynamic, fast-paced environments and enjoy being challenged
Job Responsibility
Job Responsibility
  • Managing class booking and 1-1 appointments
  • Integrating and customizing waiting lists
  • Integrating and maintaining communication with third-party aggregators
  • Lead the design of microservices and event-driven architectures that handle high-volume data and ensure a balance between immediate product requirements, technical feasibility, and long-term scalability
  • Develop tight interfaces using industry standards (micro-frontends, monorepository) to allow studio managers and teachers to organize their day-to-day work
  • Write robust, efficient, and maintainable code and implement best practices for code reviews, testing, and continuous integration & delivery
  • Provide technical leadership and share knowledge with less experienced engineers and foster a culture of continuous learning, collaboration, and innovation
  • Continuously monitoring and improving the performance of backend services using Grafana, Prometheus, ELK, and Sentry
  • Participate in our cross-team 'squads', providing innovative solutions and improvements to our frontend (React, Zustand, Module federation, monorepository orchestrated with NX) or backend (Grafana, Kibana, PostgreSQL, AWS, RabbitMQ, Kafka, Django, Django Rest Framework) stacks, advocating for best practices
What we offer
What we offer
  • Hybrid model with 3 days per week in the office
  • Up to 15 days of remote work from abroad each year
  • Specially discounted HelloCSE membership
  • Multicultural colleagues, after-work events, team-building & more
  • Fulltime
Read More
Arrow Right