Jobs at Djinni

We are a dynamic and innovative team working on a cutting-edge project in sports analytics and statistics. With a solid foundation in frontend development, we are now looking for a skilled Python Developer to lead backend implementation and API development.
 

Requirements:

• Proven experience as a Python Developer with strong expertise in Django, Django Templates, and Django Ninja (experience with FastAPI or DRF is also acceptable).
• Solid understanding of backend development, especially in the context of data-rich applications.
• Experience with PostgreSQL, Redis, and Solr or Elasticsearch.
• Experience in designing, developing, and maintaining robust and well-documented APIs.
• Excellent collaboration and communication skills.
• Problem-solving mindset with strong attention to detail.

Will be a Plus:

• Understanding of sports statistics and analytics, with the ability to translate data into actionable insights.
• Experience integrating third-party sports data providers via APIs.
• Familiarity with responsive design and building user interfaces for data-heavy applications.
• Basic knowledge of frontend technologies such as HTML, JavaScript, CSS, SCSS, and experience with Unpoly.

Responsibilities:

• Lead the backend development and architecture of the platform.
• Design, implement, and maintain high-performance APIs to serve real-time and historical sports data.
• Collaborate with the frontend team to ensure seamless integration of backend services.
• Work with the team to assess and implement missing features on both frontend and backend.
• Ensure high code quality through unit testing and clean architecture practices.
• Optimize and maintain the performance and scalability of the application.

We’re looking for a Senior Full-Stack Developer who is curious, proactive, and excited to shape the future of EdTech. At MindK, we combine modern web technologies with AI-driven solutions to build products that make learning more engaging, effective, and accessible worldwide.

About the Project

A SaaS platform for educational institutions that automates learning processes, tracks student progress, and enhances the learning experience with real-time analytics.

Main tech stack: Node.js, NestJS, React.js, MUI 5, PWA, Prisma, GraphQL, PostgreSQL, AWS.

Your responsibilities:

• Develop new features and maintain existing functionality;
• Write clean, testable, and efficient code;
• Collaborate with product owners, designers, and other developers to deliver the best solutions;
• Stay updated with modern tools, trends, and best practices in development.

Requirements:

• 5+ years of experience with Node.js;
• 5+ years of experience with React.js;
• At least 1 year of hands-on experience with NestJS;
• Solid understanding of OOP and design patterns;
• Knowledge of SQL and experience with MySQL/PostgreSQL;
• Proficiency with Git;
• Strong knowledge of ES6/ES7;
• Experience working with AWS;
• English level: B2 or higher.

What we offer:

• Regular salary reviews and opportunities for career growth;
• Health insurance compensation;

We are looking for a talented UI/UX Designer to join our team. You’ll work with us and our clients on custom web and mobile applications, as well as innovative SaaS products for Europe. If you’re passionate about design and value a user-centered approach, you’ll be a perfect fit.

Your Responsibilities

• Participate in requirements gathering workshops with clients and team members;
• Understand business goals and user needs;
• Collaborate with the team to generate design hypotheses and solutions;
• Apply user-centered design principles throughout your work;
• Design end-to-end user experiences;
• Build prototypes to illustrate different design concepts;
• Create high-fidelity UI designs in Figma;
• Conduct design review sessions with the team, clients, and users (when required);
• Develop and maintain project design systems;
• Ensure quality, consistency, and brand standards across the product lifecycle;
• Support digital marketing design (websites, banners, emails, etc.);
• Communicate regularly with clients, BAs, PMs, developers, and other team members to improve products.

Your Experience & Skills

• 4+ years of proven UI/UX design experience;
• Strong portfolio showcasing design work and thought process;
• Expert-level proficiency in Figma and Adobe CC (Photoshop, Illustrator);
• Solid understanding of typography, composition, layout, grids, and color theory;
• Experience working with design systems;
• Creative thinking with strong attention to detail;
• Knowledge of user-centered design principles and best practices;
• Ability to create simple illustrations and icons;
• Strong organizational and time management skills;
• Experience with no-code tools (Webflow, Wix) is a plus;
• English: Upper-Intermediate or higher.

What We Offer

• Competitive salary that matches your expertise;
• Career development opportunities and yearly salary reviews;
• Medical insurance compensation;
• 50% compensation for professional training and conferences;
• 100% compensation for successfully passed certifications;
• Free English classes;
• Participation in conferences and events organized by the company.

Competera uses Big Data and Deep Learning to change the way retailers do pricing. We are known for both cutting-edge math ‘under the hood’ and for deep expertise in the pricing domain. We are now looking for a Pricing Manager who knows how to turn pricing into a growth lever.
If you enjoy working at the intersection of numbers, strategy, and market dynamics — this might be the role for you.
What you will do:

• Support customer's pricing teams during their lifecycle at Competera.
• Gain, maintain and share knowledge about customer pricing process and needs.
• Recommend improvements in customers' pricing process based on best practices.
• Work with the project team on solution requirements.
• Design AB tests with the project team.
• Configure pricing platform UI based on customer's needs.
• Train end users to use the solution effectively.
• Proactively work with users on product adoption to maximize value.
• Tactical pricing support for end users.
• Analyze pricing results.
• Participate in quarterly business reviews.
• Perform additional analytics upon request.
• Work with the product team around backlog and new feature releases.

Starter-kit needed to join the board:
 

• 5+ years of pricing experience — whether in B2B, B2C, SaaS, retail, or another pricing-focused environment.
• Hands-on with analytics — you know how to interpret data, work with pricing models, and use insights to shape strategy.
• Strong financial understanding — you’re comfortable building or working with financial models to evaluate profitability and pricing trade-offs.
• Market and product segmentation skills — you can identify customer or product segments and align pricing strategies accordingly.
• Good grasp of pricing levers — you understand how discounts, promotions, and lifecycle stages impact sales and margins.
• Comfortable with demand dynamics — you can factor in how price changes affect customer behavior and demand (aka elasticity).
• Familiarity with frameworks — exposure to approaches from firms like Nielsen or McKinsey is helpful, but not a must.

Bonus Points:
 

• Consulting background.
• Experience in product lifecycle pricing or managing promotional pricing strategies.
• Worked with cross-functional teams across sales, finance, and product.
• Exposure to statistical tools or econometric methods (Excel wizards and data storytellers are welcome!).

Soft skills:

• Decision making.
• Being able to work independently and together with a team.
• Excellent presentation skills.
• Effective communication with all levels of the organization.
• Fluent English.
• Being proactive.
   

You’re gonna love it, and here’s why:
 

• Rich innovative software stack, freedom to choose the best suitable technologies.
• Remote-first ideology: freedom to operate from the home office or any suitable coworking.
• Flexible working hours (we start from 8 to 11 am) and no time tracking systems on.
• Regular performance and compensation reviews.
• Recurrent 1-1s and measurable OKRs.
• In-depth onboarding with a clear success track.
• Competera covers 70% of your training/course fee.
• 20 vacation days, 15 days off, and up to one week of paid Christmas holidays.
• 20 business days of sick leave.
• Partial medical insurance coverage.

Drive innovations with us. Be a Competerian.

Looking for a senior frontend dev to own our multi-service SaaS architecture.

Stack: Next.js, TypeScript, microservices/micro-frontends

You'll work with (should work):

• Multiple micro-frontends with independent deployments
• JWT auth across services
• CI/CD pipelines (GitHub Actions)
• AWS (S3, CloudFront, Lambda)
• AI coding tools (Claude Code/Copilot) for faster delivery
• Performance optimization (Core Web Vitals 90+)
• SEO and technical optimization

Must have:

• 5+ years React/Next.js
• Strong TypeScript
• Micro-frontend architecture experience
• Git workflows, SSL certificates, security best practices
• PageSpeed/performance optimization skills
• Hands-on AWS and CI/CD setup

We offer: Remote work, competitive salary, modern stack, AI tools budget

Process: Test Task → Code review → Tech call → Team fit

Our client is a leader in providing advanced telecommunications and IoT solutions to enterprises and enterprise customers worldwide. 

The company’s mission is to empower communication, which is why we offer a wide range of communication products that are carefully customized to meet the specific requirements of our customers. Regardless of the industry or size of the organization, we develop optimal solutions to meet your unique needs.

 

POSITION SUMMARY:

We are seeking a dynamic and ambitious Support Core Network Engineer (Junior) to join our team. As a leading player in the telecom industry, we value individuals who are passionate about innovation, communication, and fostering exceptional customer experiences.

RESPONSIBILITIES:

• Provide technical support for core network operations, ensuring seamless functioning of mobile network protocols.
• Collaborate with senior engineers to troubleshoot network issues and optimize performance.
• Utilize your knowledge of key mobile network protocols SS7 Stack, Diameter, SIP to contribute to the smooth operation of our systems.
• Communicate effectively with clients and internal teams to resolve technical inquiries and ensure client satisfaction.

• Exhibit strong problem-solving skills and a customer-centric approach in all interactions.

   

REQUIREMENTS:

• Currently enrolled in an undergraduate program, preferably in radio electronics or telecommunications, in the 3rd-5th year of study at KPI (Kyiv Polytechnic Institute) or a related university such as the Institute of Telecommunications.
• Knowledge of at least three basic protocols of mobile networks: SS7 Stack, Diameter, SIP.
• English — Upper Intermediate.
• Strong sense of responsibility and accountability in accomplishing assigned tasks.
• Excellent communication skills, both written and verbal.
• Customer focus and the ability to effectively meet customer needs.

COMPANY OFFERS:

• Employment in according to the Ukrainian labor law (24 days of vacation, sick leave).
• Opportunity to work with advanced telecommunications technologies and gain hands-on experience.
• Exposure to a global clientele and the opportunity to contribute to the development of effective solutions.
• Mentorship from experienced professionals in the telecommunications industry.
• Collaboration and a supportive work environment.
• Competitive compensation package and growth prospects.

As an HR Business Partner at DashDevs, you will be a strategic partner to managers and department leads, ensuring alignment between people strategies and business priorities. You will lead HR processes and frameworks, drive change initiatives, and support the development of high-performing teams through strategic consulting, data-driven insights, and proactive planning. You will work closely with leaders to design and execute organizational improvements, facilitate OKR planning, guide managers in talent development, and build scalable people operations.

YOUR BACKGROUND

• 5+ years of experience as an HRBP or similar strategic HR role in tech or fast-paced environments
• Strong knowledge of performance management and people operations
• Excellent facilitation and communication skills with a proactive and structured approach
• Strong analytical skills with the ability to translate data into actionable insights for supporting decision-making
• Strategic mindset with the ability to translate people-related challenges into practical solutions
• Proven expertise in change management & conflict resolution
• Skilled in working with Jira, Confluence and Looker Studio (optional)
• English level - C1

RESPONSIBILITIES

1.Strategic Partnership & Leadership Consulting: 

• Act as a trusted advisor to managers on people-related issues including structure, culture, retention, and conflict resolution. 
• Conduct syncs and strategic HR check-ins with department managers.

2.HR Policy & Change Management: 

• Lead the creation and implementation of HR policies and frameworks.
• Coordinate change management initiatives across departments.

3.Performance, Growth & Succession: 

• Own the full performance review and assessment process. 
• Lead company-wide succession planning initiatives. 
• Identify training needs and align them with business goals.

4.People Analytics & Reporting:

• Lead employee engagement surveys and analyze trends in satisfaction, turnover, and performance.
• Prepare quarterly strategic HR reports using Looker Studio
• Identify organizational risks and improvement opportunities.

5.Strategic Planning & OKR Facilitation: 

• Facilitate OKR sessions with department leads

WE OFFER

• 20 billable days off in the first year of cooperation, all next years - 25 billable days off
• Fair and competitive compensation
• Friendly team and enjoyable working environment
• Clearly described business processes in the company that really work
• Regular updates on company news, Q&A sessions with top management
• Flexible work schedule
• Remote work mode
• Ability to transfer unused vacation to the next year
• Partial coverage of co-working costs
• Regular online team-building events

⚠️ Note: Please do not apply if your spoken English is below C1 level.

About the Company

Top Netics is a venture builder that creates and launches its own tech products across MENA, the US, Europe, and Africa. Our solutions address real-world problems and scale fast.

We also act as a technical partner for selected clients — helping them design, build, and launch digital products from the very first prototype to full rollout. Our partners include both private companies and government organizations.

Our culture is built on respect, transparency, and results. If you want to work on products that reach international markets and deliver real value, you’ll enjoy being part of our team.

The Role

We’re building a web platform for real-world asset (RWA) tokenisation: investor onboarding (KYC), property discovery, wallets/connect, purchase/settlement flows, and portfolio dashboards.
You’ll design and ship secure, scalable Node.js services running on Alibaba Cloud.

Responsibilities

• Design and implement Node.js / TypeScript microservices with clear REST APIs (OpenAPI/Swagger).
• Model data and write performant SQL for ApsaraDB RDS (PostgreSQL/MySQL) or PolarDB; manage migrations.
• Integrate with KYC, payments, notifications, and internal services.
• Enforce security (authN/authZ, secrets, PII handling, input validation, rate limiting).
• Add tests (unit/integration/contract) and participate in code reviews.
• Operate services on ECS or ACK (Kubernetes); store objects in OSS; expose via API Gateway.
• Ship observability: structured logs to Log Service (SLS), metrics and tracing via CloudMonitor/ARMS.
• Collaborate in Scrum; deliver in small, reviewable increments.

Must-have skills

• Production experience with Node.js + TypeScript.
• API design with REST, OpenAPI/Swagger; robust validation and error handling.
• SQL with Postgres/MySQL on ApsaraDB RDS (or PolarDB); migrations (Prisma/TypeORM/Flyway).
• Docker and CI/CD (GitLab/GitHub Actions).
• Security fundamentals: JWT/OAuth2/OIDC, secrets management, WAF/rate-limit basics.
• English B2; reliable connectivity.

Nice to have

• Messaging/async: RocketMQ, Kafka, MNS; caching with ApsaraDB for Redis (Tair); scheduled jobs.
• Serverless & events: Function Compute, EventBridge.
• Networking/security: WAF, Anti-DDoS, Cloud Firewall; RAM roles/policies; KMS/Secrets Manager.
• Experience deploying on Alibaba Cloud using at least two of: ECS, ACK, API Gateway, OSS.
• IaC: Terraform (alicloud provider) or ROS (Resource Orchestration Service).
• Domain familiarity: fintech/RWA, KYC/AML, wallets & custody, payment gateways.
• GraphQL or gRPC.
   

📍 What We Offer

• Remote work format.
   

⚠️ Please Note

• To help us better understand your expectations, please include your salary expectations in your CV, motivation letter, or email when applying.
• Our team carefully reviews all applications, and if your profile meets the requirements of the position, a recruiter will contact you within 2 weeks.
   

🔒 Data Protection Notice

By submitting your CV for this position, you consent to the processing of your personal data by Top Netics in accordance with the Law of Ukraine “On Personal Data Protection.” This consent also includes the processing of your data in external systems for the purpose of supporting the recruitment process.

Top Netics is a venture builder. We create and launch our own tech products across the MENA region, the United States, Europe, and Africa — products that solve real-world problems and scale fast.

We also work as a technical partner to select clients — helping them design, build, and bring their digital products to market. From first prototype to full rollout, we stay hands-on and delivery-focused. We collaborate with both private companies and government organizations.

At Top Netics, we believe in the power of entrepreneurs — their vision, their passion, and their ability to create something truly transformative. We understand that the journey from a great idea to a successful enterprise isn’t a solo venture — it’s a collaborative effort that demands robust support and expertise.

That’s why we offer a variety of services designed to empower entrepreneurs at every step of their entrepreneurial journey. Together, let’s turn visionary projects into market-leading successes.

If you’re looking to join a team that builds with respect, clarity, and purpose — you’re in the right place.

🚀 Key Responsibilities

• Manage and optimize Kubernetes clusters in AWS (scaling, networking, ingress, security).
• Design, deploy, and monitor infrastructure for video streaming services (including AWS Kinesis).
• Automate infrastructure provisioning and CI/CD pipelines (IaC).
• Set up monitoring, observability, and alerting (Prometheus, Grafana, CloudWatch).
• Perform security hardening and routine maintenance on cloud and VPS-based infrastructure.
• Manage DNS, SSL certificates, firewalls, and networking configurations.
• Set up and maintain Linux VPS (Nginx, Docker, databases).
• Collaborate with developers to improve deployment workflows and troubleshoot production issues.

✅ Must-Have

• Strong experience with AWS and Kubernetes (EKS or self-managed).
• Hands-on experience building infrastructure for streaming services (AWS Kinesis, CDN integration, transcoding).
• Knowledge of Infrastructure-as-Code and CI/CD practices.
• Experience setting up monitoring and observability systems.
• Linux system administration skills.
• Experience managing VPS environments (e.g., DigitalOcean, Hetzner).

💡 Nice-to-Have

• Experience with Terraform or CloudFormation.
• Knowledge of CI/CD tools (GitHub Actions, GitLab CI, etc.).
• Troubleshooting and performance optimization skills.
• Experience with media servers (NGINX RTMP, Wowza, MediaSoup).
• Familiarity with container security tools (Trivy, Kyverno).
• Exposure to AWS cost monitoring and optimization.

📍 What We Offer

• Remote work format.

⚠️ Please Note

• To help us better understand your expectations, please include your salary expectations in your CV, motivation letter, or email when applying.
• Our team carefully reviews all applications, and if your profile meets the requirements of the position, a recruiter will contact you within 2 weeks.

🔒 Data Protection Notice

By submitting your CV for this position, you consent to the processing of your personal data by Top Netics in accordance with the Law of Ukraine “On Personal Data Protection.” This consent also includes the processing of your data in external systems for the purpose of supporting the recruitment process.

About VwD
VwD is a cutting-edge, AI‑powered platform that supports brands in identifying and managing risks across creator content by analyzing social media for compliance and brand alignment.

Description
We are looking for a strong Fullstack Engineer to help build and refine both the user-facing interface and backend services of our platform. In this role, you'll work across the stack - designing dynamic React components and robust Django APIs - to deliver seamless experiences and powerful workflows. Ideal for someone excited by deep technical challenges and eager to contribute across multiple layers of the product.

What You’ll Do

• Build and optimize backend services and APIs with Python/Django, including ORM-managed data models and REST endpoints.
• Develop and maintain responsive UIs using React, ensuring cross-browser compatibility and performance.
• Collaborate with UX and product teams to turn wireframes into polished user experiences.
• Write clean, testable, and maintainable code; perform code reviews and enforce best practices.
• Troubleshoot, debug, and optimize performance across frontend and backend layers.
• Handle simple DevOps tasks and maintain Docker containers, while escalating more complex deployments to DevOps specialists.
• Tune AI prompts to improve model responses, crafting and testing prompt templates for better accuracy and consistency.

What We’re Looking For

• 4+ years of professional experience as a Fullstack Engineer using React and Python/Django.
• Deep understanding of modern front-end technologies (HTML5, CSS3, JavaScript, React, state management).
• Solid backend knowledge with experience in Django REST framework, ORM, database design, and REST APIs. 
• Proficiency in relational databases like PostgreSQL or MySQL and version control tools like Git.
• Strong problem-solving skills, attention to UI/UX details, and a collaborative mindset.
   

What We Offer

• The opportunity to shape a mission-critical, brand-safety platform from end to end.
• A collaborative, flexible environment that values technical impact and cross-functional learning.
• Competitive compensation, and professional growth opportunities.

We are looking for a Senior Full-Stack Engineer (Angular + NestJS) who can work across the stack — from building scalable, high-performance frontends to designing maintainable backend services.

 This is a role for an engineer who understands how frontend rendering ties into backend APIs and can deliver production-grade solutions in complex enterprise systems.

This is a part-time role with top-tier compensation (among the highest in the Ukrainian market). It is ideal for an expert developer who already has a full-time job but wants to take on additional high-impact engineering challenges in a flexible consulting format.

Tech Stack

1. Frontend: Angular 15–18 (TypeScript, RxJS, Signals, Reactive Forms)
2. Backend: Node.js with NestJS(preferred)
3. APIs: REST/GraphQL, JWT/OAuth2 authentication
4. Databases: PostgreSQL, MongoDB (basic proficiency)
5. Frontend Architecture: modular design, lazy-loaded modules, monorepo structures, state management (NgRx, Akita, or Signals)
6. Backend Architecture: microservices, modular NestJS applications
7. CI/CD: Git, GitHub Actions, Docker, Kubernetes
8. Build & Tooling: Vite, Webpack
9. Observability: Prometheus, Grafana (or equivalents)

Key Responsibilities

• Frontend Development (≈60%): Design and implement Angular frontends with focus on performance, change detection strategies, and scalable architectures.
• Backend Development (≈30%): Build and maintain NestJS services, secure APIs, and integrations with databases and external systems.
• Team & Architecture Support (≈10%): Provide best practices, code reviews, and guidance across teams.

Required Skills

1. 7+ years of professional experience in web development
2. Deep expertise with Angular internals (rendering, change detection, RxJS, Signals)
3. Solid hands-on experience with NestJS and Node.js backend development
4. Good knowledge of relational and document databases (PostgreSQL, MongoDB)
5. Understanding of browser internals and backend async processing
6. CI/CD experience with Docker, Kubernetes, GitHub Actions
7. English at B2+ level for international collaboration

Nice to Have

- Experience with micro frontends and modular architectures
- Advanced testing strategies (Jest, Cypress, Playwright)
- Experience with messaging systems (Kafka, RabbitMQ, Redis)
- Security and performance optimization experience

Why Join Us?

• Top Compensation: Among the most competitive part-time rates in Ukraine.
• Flexibility: A true part-time arrangement, adaptable to your schedule.
• Remote-First: Work from anywhere.
• Full-Stack Challenge: Shape both frontend and backend of enterprise-grade systems.
• Engineering Focus: No presales, no bureaucracy — just core development work.

About the Role

We are looking for a Markup Developer with strong skills in HTML/CSS and a passion for building fast, adaptive, and visually appealing user interfaces. You will work closely with designers and developers, turning design concepts into pixel-perfect, performant layouts for a long-term betting project.

Key Responsibilities

• Develop efficient, responsive, and cross-browser layouts.
• Implement CSS/JS animations for engaging UI.
• Collaborate with developers and designers to improve products.
• Optimize web application performance.
• Suggest ideas and solutions for UI/UX improvements.

Requirements

• 3+ years of professional experience in HTML/CSS coding.
• Strong knowledge of HTML, CSS, Sass/Less.
• Experience with Figma / Sketch / Photoshop.
• Good understanding of UI/UX design principles.
• Intermediate English (B1+) for communication.

Nice to Have

• Experience with build tools (Gulp, Webpack).
• HTML email templates.
• CSS frameworks.
• Template engines (Pug, Handlebars).
• Animation libraries (GSAP, WebGL, ThreeJS, Canvas API).

Why Join Us?

• Long-term contract (1+ year, full-time).
• MacBook Pro provided.
• 18 paid vacation days + Cyprus public holidays.
• Medical insurance & wellbeing package (after 3 months).
• Learning & development support.
• Birthday gifts & bonuses.

Recruitment Process

1. Short HTML/CSS test task.
2. Intro call with recruiter.
3. Technical interview with client.
4. Final offer call.

About the Role
We're kicking off a greenfield backend project with an ambitious digital client, and we're looking for a Senior Backend Engineer (Node.js) to join us. This is your chance to build a scalable API and backend infrastructure completely from scratch, and you'll have a big say in how it's designed, architected, and developed.
The backend will power native mobile apps and web platforms rolled out across an innovative global company and used by employees and management. It comes with a long-term, ambitious and innovative roadmap, so this is not just a one-off build - it's the beginning of an exciting product journey.
You'll collaborate closely with our Copenhagen-based product and design team (including talent from one of Scandinavia's top design agencies), and have plenty of freedom to propose and shape technical solutions.
The initial contract is 4–6 months (likely full-time), with strong potential for extension. We're open to some flexibility for great candidates who may have other commitments.

What You'll Do

• Lead development of a Node.js backend and RESTful APIs from the ground up
• Design and implement scalable microservices architecture and database schemas
• Collaborate with mobile and frontend teams to define API contracts and ensure seamless integration
• Take ownership of architectural decisions including cloud infrastructure, security, and performance optimization
• Contribute to frontend development when needed, working across the full stack
• Work in an agile setup with daily standups, sprint planning, and reviews
• Should you have experience as tech lead then you might get this role also

Requirements

• 5+ years of backend development experience with Node.js/TypeScript
• Proven track record building and scaling production APIs and backend systems
• Fullstack capabilities with modern frontend frameworks (React, Vue, or Angular) to support end-to-end feature development
• Strong understanding of database design (SQL/NoSQL), caching strategies, and cloud services (AWS/GCP/Azure)
• Experience with authentication, authorization, and security best practices in enterprise applications
• Fluent and professional English (spoken + written)
• Experience working with Jira, Slack, GitHub in distributed teams
• Located within CET±2h

Nice to Have

• Experience with event-driven architectures, message queues, and real-time systems
• Prior work on employee-facing platforms, HR systems, or enterprise SaaS applications
• Experience with containerization (Docker/Kubernetes) and CI/CD pipelines
• Background in building backends for mobile apps at scale

Why Join Us?

• Greenfield project: freedom to influence architecture and implementation
• Ambitious client with strong digital ambitions and a long-term roadmap
• Meaningful impact: backend will power daily tools for employees and managers in a global sustainability-driven company
• Top design team: work alongside one of Scandinavia's best design agencies, known for premium global clients
• Room to grow: potential for longer-term engagement beyond the first release

Contract & Compensation

• Freelance contract
• Duration: 4–6 months, with possible extension
• Engagement: full-time preferred, flexible for strong candidates
• Rate: €20–45/hour depending on experience

How to Apply
Please include:

• Links to projects/APIs you've built (GitHub, documentation, or case studies)
• A short note on your specific contributions and the scale/impact of those systems
• Your availability (hours/week, start date)
• Your hourly rate expectation

What You’ll Do:

• Design and develop core backend services in Java with a strong focus on performance and scalability.
• Build and maintain highly concurrent, multi-threaded systems handling millions of requests per day.
• Architect and implement features for high-throughput, low-latency applications.
• Optimize system performance and memory usage under heavy load.
• Collaborate with DevOps, Product, and QA to deliver reliable and robust solutions.
• Participate in code reviews, technical design sessions, and mentorship of junior developers.
• Contribute to improving the engineering culture and technical excellence across the team.

What You Bring:

• 6+ years of hands-on Java development experience.
• Deep understanding of multithreading, concurrency, and synchronization mechanisms in Java.
• Proven track record building and scaling high-load, distributed systems in production.
• Experience with microservices architecture, RESTful APIs, and messaging systems (Kafka, RabbitMQ, etc.).
• Familiarity with database technologies
• Solid architectural understanding of web applications and APIs
• Experience with concurrency – big advantage
• Experience with production mission-critical systems – advantage
• Good exposure with modern DevOps tools like Docker, Kubernetes, Helm, Shell Scripting, CI/CD – advantage
• Familiarity with cloud platforms (AWS, GCP, Azure) and containerization (Docker, Kubernetes) is a plus.
• Strong communication skills and a proactive, collaborative mindset.

Bonus Points:

• Experience contributing to open-source projects.
• Familiarity with JFrog products (Artifactory, Xray, etc.).
• Experience with CI/CD tools and DevOps pipelines

Location: Remote

Type: Part-time, Contract

Are you excited about building the backbone of next-generation AI tools? Do you want to empower creators worldwide with cutting-edge technology? If so, we want you on our rocket ship!

Assisterr is a decentralized platform that simplifies the creation, maintenance, and support of community-owned Small Language Models (SLMs).

Our incentive-driven data inference framework allows everyone to contribute knowledge and expertise to train these AI models, ensuring permissionless access, data quality, and fair rewards.

Our mission is to ensure everyone has equal opportunities to contribute to and benefit from AI progress.

What You’ll Do:

• develop the infrastructure behind our core product: AI Lab — a no-code constructor for Small Language Models
• Design, build, and maintain scalable, secure, and high-performance backend systems using Python and FastAPI
• Develop and maintain ergonomic, open-source SDKs that creators will love
• Craft sample applications that showcase the power and ease-of-use of our platform
• Engage directly with creators to gather feedback and iteratively improve our APIs and SDKs
• Debug complex full-stack issues to ensure rock-solid stability, reliability, and security

• Participate in code reviews and help maintain our high standards of code quality

   

What We’re Looking For:

• 5 years of experience in backend software development, with a strong focus on Python
• Ability to decompose business needs or user feedback into actionable executable plan is a great +
• Mastery of Python and its ecosystem (FastAPI, Pydantic, asyncio, etc.)
• Experience with MongoDB and Redis for high-performance data storage and caching
• Strong understanding of RESTful API design principles and best practices
• Experience with Data/AI pipeline orchestrators.
• Familiarity with AI/ML libraries

• Experience with Vector Databases is a big +

   

Our Tech Stack:

• Python 3.12
• FastAPI
• MongoDB
• Redis
• Prefect
• Qdrant
• AWS
•  

Benefits:

• Competitive salary and equity package (including tokens)
• Remote-first culture with flexible hours
• Quarterly offsites for team bonding and collaboration
• Opportunity to work on cutting-edge AI and Web3 technologies
• Exposure to a rapidly growing user base (250k+ users and counting!)
• Flexible vacation policy
• Professional development budget