Jobs at Djinni

About the Role 

We are looking for a Node.js Software Engineer with an interest to AI technologies. 

Key Responsibilities 

• Write clean, maintainable, and scalable code using Node.js as the primary technology. 
• Review and provide constructive feedback on Pull Requests from other team members. 
• Design and implement various levels of automated tests (unit, integration, end-to-end). 
• Collaborate with team members to identify and solve complex technical challenges in building an AI agents system. 
• Actively participate in architectural discussions and propose scalable solutions. 
• Contribute to continuous improvement in development processes, tools, and best practices. 

Required Qualifications 

• 5+ years of hands-on experience with Node.js in production environments. 
• Strong understanding of software design principles, clean code, and scalable architecture. 
• Excellent problem-solving skills and the ability to break down complex problems into actionable solutions. 
• Strong communication and collaboration skills. 
• Interest in Artificial Intelligence technologies and their practical applications. 
• Strong knowledge SQL (Postgres or similar). 

Nice-to-Have 

• Experience with NestJS framework. 
• Familiarity with AWS services (Lambda, S3, DynamoDB, etc.). 
• Understanding of Multi-Agent System (MAS) architectures or principles. 
• Experience working with tools/frameworks like: 
• LangChain, LangGraph 
• n8n 

Soft Skills 

• Strong communication and collaboration abilities. 
• Willingness to experiment, iterate, and learn from results. 
• Comfortable working in cross-functional teams. 
• Creative mindset with a focus on delivering practical solutions. 

At Mindojo, we’re developing advanced ed-tech platforms, used by market-leading test-prep courses such as Bloom Prep as well as language learning apps for children. 

On our platform, students engage in a rich, personalized dialogue with our AI private tutor, far surpassing the efficacy of existing resources like textbooks, video or classroom lectures, and various e-learning products. 

As a Senior AI-First Full-Stack Engineer, you’ll design lean development pipelines where AI agents assist in building, testing, and releasing product features. You’ll act as both architect and quality gatekeeper—owning solutions from idea to deployment, ensuring every learner-facing feature meets Mindojo’s high bar for reliability and impact.

Note: This role is not about developing new AI models—it’s about leveraging existing AI tools (LLM frameworks, agent orchestration, AI-augmented coding workflows) to engineer better products, faster.

Our culture

We move fast, prioritising the highest-impact work and discarding anything that does not advance learner outcomes. We operate with wide autonomy and a can-do attitude: if you spot a problem, you fix it. Transparency in plans and results, coupled with personal responsibility for quality and security, underpins every decision.

Requirements:

• Demonstrable track record of applying LLM-based tools (e.g., Cursor, Copilot, Windsurf, LangGraph, AutoGen, CrewAI or equivalent) in real-world development workflows.
• Deep software architecture and development experience across the full stack, with expert knowledge in Python, JavaScript.
• Ability to audit AI-produced code for hidden dependencies, insecure patterns and concurrency edge cases.
• Cloud infrastructure management experience along with server administration skills.
• Comfortable leading features through discovery, implementation, testing, deployment and monitoring.
• Proven ability to multitask and manage multiple priorities effectively.
• Exceptional autodidacticism.
• Excellent organizational skills and a proactive attitude are essential.
• Excellent communication skills in both written and spoken English.

Bonus points for:

• Start-up experience.
• Portfolio demonstration – a brief README, blog post or video walkthrough showing an AI-agent workflow you built and the impact it delivered.

Operations expectations:

• Availability – be responsive in Slack during core hours (UTC+3 overlap)—we value fast unblockers, not constant pings, and respect deep-focus time.
• Planning transparency – publish a daily plan in the calendar and an end-of-day progress update.
• Delivery rhythm – break work into tasks that close or deploy at least weekly.
• Incident participation – collaborate in real-time when production issues affect learners.

What you will be doing:

• Architect and maintain agent pipelines (planning → coding → test/validation).
• Review AI-generated pull requests for security, performance and edge-case correctness; no tolerance for bad code or slow, error-prone deployments.
• Automate repetitive engineering and operational tasks as soon as they are recognised.
• Own solutions end-to-end—from design through deployment to monitoring—without hand-holding or bottlenecks.
• Run focused experiments to validate product ideas and workflow improvements.
• Thrive in a fast-paced environment, adapting quickly to new challenges across various tasks.

What you won’t deal with:

• Endless ticket grooming, rigid specs, or waterfall hand-offs.
• Bureaucratic status meetings or drawn-out manual deployments.

What we offer:

• Competitive compensation package.
• Stock option plan.
• Challenging and interesting projects.
• Flexible work schedule and the ability to work from anywhere.
• A real chance to play a key part in revolutionizing education worldwide.

We are currently looking for an active, innovative, experienced Facebook Media Buyer to join our team.

Our ideal candidate must be comfortable in a fast-paced environment and be excited about the opportunity to work strategically at a high-level and the opportunity to actively participate in the daily operations.

Requirements:

• At least 1 year of commercial experience with Facebook Ads (gambling);
• Expertise in Tier 1,2 markets;
• Working effectively with a high daily budget;
• Understanding of specifics of the Meta system algorithms;
• Ability to find and correctly scale working connections;
• Generate and test new hypotheses;
• Ability to provide technical specifications to creatives and technicians;
• Understanding and ability to work with basic metrics;
• English — pre-intermediate;
• Result-oriented person with high stress management skills;

• Creative and adaptive mindset.

   

Responsibilities:

• Creation and launch of Facebook advertising campaigns;
• Searching and testing new approaches and connection;
• Testing new hypotheses and displaying statistics on them;
• Creation of technical specifications for the creation of creative materials and texts;
• Analysis of the effectiveness of advertising campaigns and their optimization;

• Reporting on advertising campaigns.

   

What we offer:

• Competitive salary: rate + high % of personal profit;
• Unlimited budgets for profitable campaigns;
• Work with TOP global brands from the world of Gambling;
• Personal prospects of quickly moving to a TL position with proper results;
• A dynamic and flexible startup environment that encourages innovation;
• Rockstar professional team (mediabuyers, affiliate, tech, creative, finance);
• 100% Remote work.

About the Role

We are looking for a highly skilled Senior Fullstack Engineer with strong expertise in React and Node.js to join our growing engineering team. You will be responsible for designing, developing, and maintaining scalable web applications, collaborating with cross-functional teams, and mentoring junior engineers.

Responsibilities:

• Develop and maintain high-quality web applications using React and Node.js.
• Design and implement APIs and integrate with third-party services.
• Ensure application scalability, performance, and security.
• Collaborate closely with product managers, designers, and other developers to deliver business value.
• Write clean, maintainable, and testable code following best practices.
• Participate in code reviews and contribute to architectural decisions.
• Mentor and support team members, sharing knowledge and promoting engineering excellence.

Requirements:

• 5+ years of professional experience in software development.
• Strong proficiency in JavaScript/TypeScript, React, and Node.js.
• Solid understanding of RESTful APIs, GraphQL, and microservices architecture.
• Experience with databases (SQL and NoSQL).
• Familiarity with cloud platforms (AWS, GCP, or Azure).
• Knowledge of CI/CD pipelines, testing frameworks, and DevOps practices.
• Strong problem-solving skills and ability to work in a fast-paced environment.
• Excellent communication skills and team collaboration.

Nice to Have:

• Experience with containerization (Docker, Kubernetes).
• Knowledge of Next.js or other SSR frameworks.
• Familiarity with event-driven systems.

What We Offer

• Competitive salary and performance-based bonuses.
• Flexible working hours and remote-friendly environment.
• Professional development budget (courses, conferences, certifications).

Cloudfresh ⛅️ is an international IT company that delivers modern solutions and tools for the digital transformation of B2B businesses across EMEA. We hold top-tier partner statuses:

Google Cloud Premier Partner

Zendesk Premier Partner

Asana Solution Partner

GitLab Select Partner

Our mission is to equip companies with the best-in-class tools for digital transformation and guide them along their journey into the digital world.

We are currently looking for a Solutions Architect / Competence Lead (Google Cloud Practice) to strengthen our technical team and lead the expansion of our Google cloud services.

Role overview

As a Solutions Architect / Competence Lead for the Google Cloud Practice, you will play a central role in both our external technical engagements and internal capability building.

Externally, you will serve as a trusted advisor and technical lead during the entire pre-sales lifecycle — from discovery sessions and architecture scoping to solution demos, RFPs, and proof-of-concept delivery. You will work closely with our business development team to position Cloudfresh as a strategic technology partner.

Internally, this is a strategic technical leadership position. You will help define the direction of our Google Cloud Practice, shape our portfolio of professional services, and build out the technical standards, methodologies, and competencies that will enable scalable and repeatable delivery.

You will collaborate with the CTO, CRO, and vendor partners (Google, Zendesk, GitHub, etc.) to create a robust technical foundation — not only across Google Cloud Platform, but also in adjacent services like Apigee, Looker, Workspace, and, in the future, AWS and Azure.

This is a high-impact, high-autonomy role for a seasoned architect who is ready to build, lead, and scale — both with clients and within the company.

Requirements:

• • 8+ years in the IT industry, including at least 2 years in architecture or solution consulting roles
• • 2+ years of hands-on experience in technical pre-sales engagements with enterprise clients
• • English – Upper-Intermediate (B2) or higher
• • Hands-on experience in technical pre-sales, consulting, or architecture roles
• • Deep understanding of core Google Cloud Platform services (e.g., Compute, Storage, Networking, IAM, BigQuery)
• • Experience with additional services in the Google ecosystem — such as Vertex AI, Looker, or Apigee — is a strong advantage
• • Knowledge of CI/CD, DevOps practices, and modern infrastructure design
• • Exposure to GitHub, Zendesk, or Google Workspace is desirable
• • Strategic thinking and ability to translate business goals into technical solutions
• • Experience with AWS or Azure is a nice-to-have

Responsibilities:

• • Act as a technical advisor to clients throughout the entire pre-sales cycle
• • Lead discovery sessions, workshops, solution demos, and technical consultations
• • Collaborate with sales to shape proposals and solution architecture
• • Validate solution designs, create documentation, lead POCs/POVs
• • Support the creation and refinement of Google Cloud-based service offerings
• • Build internal technical knowledge and drive the company’s cloud expertise.
• • Participate in online and offline events as a speaker, contributor, practitioner.

Work conditions:

• Work alongside innovators: Collaborate with top-tier brands like Google Cloud, Zendesk, Asana, GitLab, HubSpot, Miro, Okta, Cloudflare, JumpCloud and Microsoft, elevating your branding and social media expertise.
• Pioneer social media strategy: Be the first to shape our social media presence from the ground up, building meaningful connections with global audiences.
• Lead branding initiatives: Take charge of impactful campaigns, from storytelling projects to visual identity refreshes, that resonate with our audience and align with our mission.
• Embrace creative freedom: Experiment with fresh ideas and lead campaigns that drive engagement and visibility across platforms. Your creativity will have a direct impact on our growth.
• Join a supportive team: Be part of a team that celebrates your wins, supports your growth, and values your input—big or small.
• Work with flexibility: Choose remote work from anywhere or visit our offices in Kyiv or Prague for collaboration and connection.
• Recharge and reset: Take advantage of 24 vacation days, public holidays, and 14 sick leave days to maintain a healthy work-life balance.
• Advance your skills: Participate in sponsored webinars, meet-ups, workshops, and partner-driven learning programs, including access to company-supported English groups.
• When applying to this position, you consent to the processing of your personal data by CLOUDFRESH for the purposes necessary to conduct the recruitment process, in accordance with Regulation (EU) 2016/679 of the European Parliament and of the Council of April 27, 2016 (GDPR).
• Additionally, you agree that CLOUDFRESH may process your personal data for future recruitment processes.

🔥 About Us

We specialized in custom UX/UI Design and Custom Development, with great experience working on various projects for more than 3 years. We believe that strong communication, deep and detailed discussion, and upfront planning is the key way to a successful collaboration. Our organization is fully remote, with team members collaborating from around the world.

🔭 What We’re Looking For
We need a UI/UX specialist (“magician,” if you will) to envision, design, and help with design task (Landing page, Web & Mobile applications).

⚜️ Qualifications
- 2+ years of UI/UX design experience
- Proven success in delivering UX/UI projects
- Previous experience in focused human-centered design

💗 What We Value
- Everyone makes decisions that drive innovation.
- We prioritize a culture of respect and teamwork, where top talent collaborates without ego.
- Information is shared openly and deliberately to keep everyone aligned.
- We minimize rules so our team can focus on meaningful work.
- A broad range of perspectives is essential to our growth and success.

💠 Core Principles
- We go where others hesitate, innovating solutions to complex challenges.
- We take ownership of tasks, working diligently with the bigger picture in mind.
- We find smart ways to overcome obstacles, even under pressure.
- We adapt and keep pushing forward in all situations.

📢 The offer
- Working time: Monday-Friday, 9 am — 6 pm (Kyiv time)
- Paid vacation: 18 work days (don't count Sat-Sun)
- 10 days of paid sick leave
- 300$ per year for your personal development
- Freedom to experiment with new technologies
- Amazing colleagues and pleasant atmosphere

💬 Ready to shape the future of UX/UI and development with us? Apply now and let’s build something remarkable together.
 

Natural Links is a globally recognized SEO agency specializing in secure link-building, strategic SEO campaigns, and enhancing brand visibility. We partner with innovative companies across fintech, SaaS, and other fast-growing digital industries. Our focus is on delivering measurable, long-term value to clients worldwide.

Why This Role Matters
 

As a Support / Account Manager, you are at the center of our client relationships. Your role is critical in ensuring projects are delivered on time, aligned with client goals, and executed to the highest standard. You:

• Build strong, trust-based relationships with clients
• Ensure seamless project execution and client satisfaction
• Directly influence client retention, long-term partnerships, and the growth of Natural Links
• Foster a culture of transparency, accountability, and collaboration across the team

Your work shapes how clients experience Natural Links and directly impacts our reputation as a trusted SEO partner worldwide.
 

Key Responsibilities
 

• Act as the primary point of contact for existing clients via video calls, email, live chat, and messenger platforms
• Ensure the timely and successful delivery of solutions aligned with client goals
• Monitor project performance and profitability using key metrics, making strategic adjustments when needed
• Stay updated on industry trends to improve client and project management approaches
• Collaborate with internal teams to resolve technical or operational issues efficiently
• Lead regular internal meetings to communicate project updates and collect feedback
• Manage ongoing communication with clients, including:
  • Sharing promotional offers and service updates
  • Discussing new orders and clarifying specific requirements
     

Requirements
 

• Minimum 1 year of experience in a Support Manager role; experience in Project or Account Management is highly preferred
• Excellent English communication skills (written and verbal)
• Strong interpersonal skills with the ability to build trust and rapport with clients and teams
• Exceptional organizational and time management skills with great attention to detail
• Ability to prioritize tasks and manage multiple projects in a fast-paced environment
• Strong analytical thinking and problem-solving skills
• Motivation to learn, adapt, and grow in a dynamic digital environment
   

Preferred Skills & Qualities
 

• Familiarity with SEO practices
• Experience working with clients from fast-evolving or regulated industries, such as fintech, SaaS, iGaming, or crypto
• Proficiency in Google Sheets / Excel
• Hands-on experience with CRM platforms (preferably Pipedrive)
• Highly responsible, proactive, detail-oriented, and accountable
   

What We Offer
 

• Competitive salary with quarterly growth opportunities based on performance
• Flexible working hours focused on results (no micro-management)
• Clear career progression paths in a fast-growing company
• Full support for professional development, training, and education
• A friendly and collaborative team culture built on mutual support and open communication
• Performance-based monthly bonus tied to overall company revenue, reflecting your impact
   

Be part of our success story and help businesses achieve top Google rankings through ethical and effective SEO. Join us, grow with us, and make your mark in the digital marketing industry.

We are looking for a skilled full-stack developer to join our team and work on building scalable web applications. You will be responsible for designing, developing, and maintaining both backend and frontend components, ensuring seamless integration and high performance.
 

Responsibilities:

• Develop backend services and APIs using FastAPI.
• Build responsive, modern user interfaces with Next.js.
• Design, query, and optimize relational databases with PostgreSQL.
• Collaborate with product and design teams to deliver end-to-end solutions.
• Write clean, maintainable, and well-documented code.
   

Requirements:

• Strong experience with Python frameworks.
• Proficiency in Next.js and React for frontend development.
• Solid knowledge of PostgreSQL and database schema design.
• Experience with RESTful APIs and integrations.
• Familiarity with version control (Git) and modern development workflows.
• Good problem-solving and communication skills.

Looking for a strong, experienced Team Lead of Media Buying to join our growing team.

Our goal is to create an industry benchmark agency with cutting-edge expertise in CPA traffic, Gambling vertical, and we need a leader who can recruit, mentor, and guide a high-performing team of media buyers while driving measurable results.

If you’re a hands-on leader with a passion for growing teams, scaling campaigns, and setting new standards in the industry, we’d love to have you on board!

Requirements:

• 2+ years of proven experience as a Team Lead Media Buyer.
• Track record of nurturing and training media buyers from junior to advanced levels (proof of past success required);
• Hands-on practitioner with expertise in creating and optimizing campaigns.
• Strong experience with CPA traffic, focusing on testing caps and scaling profitable results.
• Deep understanding of traffic quality, GEO-specific strategies, and sustainable approaches

• Established expertise in top GEOs with a proven ability to perform and scale.

   

Responsibilities:

• Build and lead a team of media buyers, focusing on training and developing junior talent into high-performing professionals.
• Develop, launch, and optimize CPA campaigns with a focus on top-tier GEOs and traffic quality.
• Share expertise in creating, testing, and scaling profitable campaigns that ensure ROI and redeposit rates.
• Provide hands-on guidance, from crafting working strategies to testing hypotheses and identifying successful combinations.
• Focus on delivering consistent test cap scaling and transitioning to high-performance caps in CPA campaigns.

• Analyze market trends, maintain an up-to-date understanding of approaches for different GEOs, and utilize strategies that prioritize quality traffic and profitability over low-value tactics.

   

What we offer:

• Competitive salary: rate + high % of profit (personal and team’s)
• Unlimited budgets for profitable campaigns;
• Work with TOP global brands from the world of Gambling;
  20 paid vacation;
• A dynamic and flexible startup environment that encourages innovation;
• Rockstar professional team (mediabuyers, affiliate, tech, creative, finance);
• 100% Remote work.

Join us in shaping the future of work.

Spacebring is a Ukrainian product company backed by Google. It transforms coworking space operations by eliminating bottlenecks, automating bookings, billing, and daily tasks. Today, Spacebring powers hundreds of spaces across 55+ countries — including well-known names like Kooperativ, Creative States, Diia Business, Google for Startups, Impact Hub, and many more.

We are looking for a skilled junior software engineer to work with our product team. A passion for programming and excellent problem-solving skills are a must.

Our tech stack: stackshare.io/spacebring/spacebring

Required

• 1+ year of experience with JavaScript, Node.js.
• Experience with React.
• Good problem-solving skills.
• Good knowledge of SQL.
• Good understanding of REST API.
• Good knowledge of Git.
• Technical education.

As a plus

• Knowledge or experience in functional programming.
• Knowledge or experience using AWS Lambda, DynamoDB, API Gateway, EventBridge, and CloudWatch.
• Experience with React Native.

We offer

• Work on a cutting-edge product and see your impact.
• Learn from a team of experts eager to share knowledge.
• Career growth in a fast-paced company.
• Opportunity of hybrid work and flexible schedule.
• Due vacation & sick leave.
• Regular salary reviews and stock options.
• Employee benefits: language courses, skill development, gym.
• Team retreats, camps, offsites, and social events.
• Comfortable coworking space in central Lviv.

About Us

We are a fast-growing company operating in different markets. Our mission is to build long-term partnerships with affiliates by providing top-converting offers, fair conditions, and full transparency.

What You Will Do

Drive acquisition via PPC & SEO affiliate sources (focus on Tier-1 & Tier-2 GEOs).

Manage and grow affiliate relationships, optimize ROI across campaigns.

Analyze traffic performance (CR, ROI, LTV, Retention) and identify scaling opportunities.

Collaborate with our in-house marketing & product teams to launch exclusive promotions and custom landing pages.

Test new traffic strategies with dedicated budget freedom.

What We Offer (closing industry pains)

Transparent & on-time payments — no hidden fees, no delays.

Top-converting casino brands with fresh, exclusive offers — not the “burnt out” ones.

Full freedom & trust to work with your PPC & SEO strategies (while respecting compliance).

Dedicated testing budget — we invest in experiments, not block them.

Access to real data — CR, FTD, LTV, retention metrics, not just “empty dashboards”.

Performance-based bonuses — you DELIVER - you EARN.

Career development — direct path to Leading position for proven performers.

Requirements

2+ years of experience in affiliate management in iGaming (casino vertical preferred).

Strong expertise in PPC (Google Ads, UAC, native, etc.) and SEO traffic sources.

Proven track record of scaling affiliate campaigns with measurable ROI.

Negotiation skills, strategic thinking, and ability to work independently.

Good English (other languages are a plus).

Primary requirements:

Higher (or incomplete higher) technical education;

At least 2 years experience in Python programming;

Strong understanding of Python and familiarity with at least one Python web framework (such as Django, Flask, FastAPI);

Basic knowledge of front-end technologies (HTML5, CSS3, JavaScript) is a plus;

Desirable experience with:

Asynchronous programming in Python (asyncio, aiohttp);

Familiarity with RESTful APIs and web services;

Understanding of Object-Oriented Programming (OOP) principles and design patterns;

Experience with relational databases (e.g., MySQL, PostgreSQL) and NoSQL databases (e.g., MongoDB, Redis);

Experience with version control systems, preferably Git;

Basic understanding of containerization technologies (Docker) and cloud services (AWS, Google Cloud, or Azure);

· Knowledge of best practices and coding standards in Python;

· Ability to collaborate effectively with a team using project management tools (e.g., JIRA, Trello);

· Understanding of client-server architecture;

· Proficiency in English at a technical level, with the ability to communicate effectively in written and spoken English.

Main responsibilities:

· Developing and maintaining web applications using Python and related frameworks;

· Writing clean, maintainable, and efficient code;

· Contributing to all phases of the development lifecycle, from concept to deployment;

· Collaborating with the development team to design and launch new features;

· Participating in code reviews to ensure adherence to coding standards.

Working conditions:

· Competitive salary;

· Flexible work schedule, Mon-Fri, from 9 to 18 or from 11 to 20;

· Opportunity for remote work;

· Stable position in a dynamic IT company;

· A supportive environment where you can grow your skills and career.

About Time2Mobile:

We are passionate about developing exceptional mobile and web applications. Join our young, ambitious team and help shape the future of digital experiences!

Company website:

https://time2mobile.com/

The position is open with a large product iGaming company that has created 100 cutting edge products, operating in 20 different markets, employing 1,300 people.

We're looking for an experienced Team Lead Developer with strong technical expertise in Node.js & React and a solid background in leadership, to join our growing fintech development team in  Lisbon, Portugal. You will lead a cross-functional team working on a payment integration platform, contributing directly to architecture, delivery, and team growth.

👉 Who are we looking for?

We're looking for an experienced Team Lead Developer with strong technical expertise in Node.js & React and a solid background in leadership, to join our growing fintech development team in Limassol, Cyprus. You will lead a cross-functional team working on a payment integration platform, contributing directly to architecture, delivery, and team growth.
 

👉 Requirements:

✔️ At least 8+ years of professional experience in the IT field.

✔️ 3+ years of experience in leadership positions.

✔️ 3+ years of commercial experience with Node.js & React.

✔️ 5+ years of commercial experience in web development.

✔️ Knowledge of JavaScript and the ECMAScript 6 standards.

✔️ Commercial experience in implementing REST and WebSockets.

✔️ Experience with Git version control system.

✔️ Experience with commercial databases, MySQL.

✔️ Experience with RabbitMQ.

✔️ Experience with Redis.

✔️Advanced level of English.

✔️ Excellent technical, diagnostic, and troubleshooting skills.

✔️ Strong leadership and organizational abilities
 

👉 Responsibilities:

✔️ Being transparent with the team about challenges, failures, and successes.

✔️ Hiring and training technical personnel.

✔️ Determining project requirements and developing work schedules for the team.

✔️ Delegating tasks and achieving daily, weekly, and monthly goals.

✔️ Liaising with team members and management to ensure projects are completed to standard.

✔️ Motivating staff and creating a space where they can ask questions and voice their concerns.

✔️ Delegating work and assignments to team members.

✔️ Collaborating with their team to identify and fix technical problems.

✔️ Lead the development of our in-house fintech platform with a focus on performance, scalability, and security.

✔️ Build and manage complex payment API integrations with banks, PSPs, and third-party services.

✔️ Contribute to full-stack development, ensuring consistency and stability across the product.

✔️ Actively participate in developing new features from concept to production.

✔️ Collaborate with product managers, designers, and stakeholders in agile workflows to ensure technical feasibility and business alignment.

✔️ Support the evolution of the architecture towards modern patterns (microservices, messaging systems, and scalable infrastructure).
 

👉 The company offers:

🧑🏻‍💻 Learning and development opportunities and interesting, challenging tasks.

✈️ Relocation package (tickets, staying in a hotel for 2 weeks).

📚 Opportunity to develop language skills and partial compensation for the cost of language classes.

🎁 Birthday celebration present.

🏝 Time for proper rest and 24 working days of Annual Vacation.

The position is open with a large product iGaming company that has created 100 cutting edge products, operating in 20 different markets, employing 1,300 people.

We’re looking for a Senior Full Stack Developer with experience in Node.js and React (80% Backend & 20% Frontend) to join our development team in  Lisbon, Portugal. You’ll help build a next-generation payment integration platform that connects businesses with multiple financial service providers through scalable, secure APIs.
 

👉 Requirements:

✔️ 5+ years of commercial experience in web development.

✔️ 3+ years of hands-on experience with Node.js.

✔️ 3+ years of frontend development experience using React.

✔️ Solid experience with NextJS, NestJS, Apollo, and Material UI.

✔️ Strong proficiency in TypeScript.

✔️ Commercial experience working with high-load SQL or NoSQL databases.

✔️ Familiar with REST, GraphQL, and WebSockets.

✔️ Understanding of TDD and writing effective automated tests.

✔️ Experience with microservice architecture principles.

✔️ Proficient with Git version control workflows.

✔️ Hands-on experience with RabbitMQ and Redis.

✔️ Experience with MongoDB and MySQL.

✔️ Advanced level of English, both written and spoken.
 

👉 Responsibilities:

✔️ Design, implement, and optimize robust solutions to enhance our proprietary payments platform, ensuring high performance, scalability, and security.

✔️ Develop and maintain complex integrations with payment providers, banks, and other third-party systems, ensuring seamless data flow and alignment with technical and regulatory requirements.

✔️ Actively participate in all stages of creating new features, from initial concept and technical design to implementation and final delivery.

✔️ Contribute to the development and ongoing evolution of our fintech payments solution, ensuring innovation and adaptability to market needs.

✔️ Collaborate in agile development cycles with bi-weekly sprints, utilizing practices such as SCRUM, grooming, and sprint planning to consistently deliver product value.

✔️ Identify opportunities for technical and process improvements, driving efficiency and innovation throughout the software lifecycle.

✔️ Work closely with design, product, and business teams to ensure features meet user expectations and support business objectives.
 

👉 The company offers:

🧑🏻‍💻 Learning and development opportunities and interesting, challenging tasks.

✈️ Relocation package (tickets, staying in a hotel for 2 weeks).

📚 Opportunity to develop language skills and partial compensation for the cost of language classes.

🎁 Birthday celebration present.

🏝 Time for proper rest and 24 working days of Annual Vacation.

About

EdSpan is an innovative company in the EdTech space, building cutting-edge learning experiences for the next generation of students. Our collaboration with a US-based private school network helps us better understand user needs while expanding our B2C and B2B products to a broader audience. We are currently working on three major projects:

AI tutoring experience — an innovative project that brings real-time interaction with a 3D animated assistant powered by LLM technology. This virtual tutor helps students navigate challenges, provides guidance, and enhances the learning journey in a playful and engaging way.

Tutorpeers – a peer-to-peer tutoring platform with a young teachers marketplace, event booking features and Zoom-like online sessions with additional interactive learning tools.

Spark Incubator – LMS-like system designed to teach kids entrepreneurship.

We have well-defined processes, trying to automate routine things, conduct code reviews, use CI and CD pipelines to validate and ship our code. We use the Agile approach with daily stand-ups, bi-weekly sprints, and other Scrum artifacts. We keep the number of meetings to a minimum so that engineers can focus on writing high-quality code and delivering cool features.

Who you are

We’re hiring our first AI/ML Engineer to lead the development of our AI agents, including prompting, the RAG and evaluation pipelines, potential fine-tuning. So, you’ll play a key role in shaping the technical direction. We’re seeking someone with a strong understanding of machine learning and NLP fundamentals, capable of tackling complex challenges in agentic workflows and optimizing model performance across the stack.

Requirements

• At least 4 years of experience in the field of Machine Learning, working as a Data Engineer, Data Scientist, Machine Learning Engineer, or in a similar role.
• Bachelor’s degree in Computer Science, Mathematics, or equivalent practical experience;
• Proficiency in Python and common data science libraries (pandas, NumPy, scikit-learn);
• In-depth knowledge of machine learning principles, understanding of LLM architectures, prompt optimization, and fine-tuning strategies;
• Skilled in designing and optimizing RAG pipelines, including embedding generation, sparse and dense retrieval, and hybrid search techniques;
• Familiar with LLM evaluation metrics and tools (BLEU, RAGAS, DeepEval, and other);

• Upper-Intermediate level of English (B2) or above.

   

Highly desireable

• Proven experience building AI-driven workflows using frameworks such as LangGraph, AutoGen, or similar orchestration tools;

• Knowledge of AWS cloud and MLOps.

   

Responsibilities

• Design, implement, and optimize LLM prompts to ensure reliable outputs;
• Assist in developing and maintaining AI evaluation workflows, including designing evaluation guidelines and metrics;
• Help design and develop AI data pipelines: collection, storage, annotation, and model improvement;
• Leverage agent orchestration tools to improve and automate AI workflows;
• Collaborate with the product team to ensure AI capabilities power usable product features.