Jobs at Djinni

Please note that this vacancy is for developers living in Kyiv.

Who we are:

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries. 

About the Product: 

proteanTecs is a game-changing startup redefining the way advanced electronics monitor their own health. In a world driven by AI, cloud computing, and autonomous systems, reliability isn’t optional - it’s essential. But how do you ensure peak performance and prevent failures before they happen?

That’s where proteanTecs comes in. The product provides real-time visibility into next-gen chips while they operate, using cutting-edge on-chip monitoring, machine learning, and predictive analytics. The technology helps companies build smarter, more resilient, and more efficient computing systems - eliminating blind spots and unlocking deep insights like never before.

The solution is already trusted by industry leaders in data centers, automotive, communications, and consumer devices. 

About the Role: 
 

proteanTecs is looking for a talented Senior Java Engineer to join the ride as we spearhead the next revolution in electronics. Your work will directly contribute to making electronics smarter, safer, and more reliable - powering everything from data centers to autonomous vehicles. As part of a fast-paced startup, you’ll take on diverse challenges, adapt quickly, and see your solutions shape the future of technology. You will be involved in end-to-end feature delivery alongside a team of 200+ industry-leading professionals who are passionate about innovation and knowledge-sharing. You’ll be working with cutting-edge tools, machine learning models, and advanced platforms to push the boundaries of what’s possible.

Key Responsibilities: 
 

• Develop and maintain robust, scalable, and secure Java-based software solutions
• Collaborate with product managers, architects, and other engineers to design and implement new features
• Build and optimize data processing pipelines for high-volume analytics applications
• Ensure software quality through code reviews, unit testing, and integration testing
• Participate in architectural decisions, contributing to the design of cloud-based systems
• Monitor and optimize system performance to meet scalability and reliability goals
• Troubleshoot, debug, and resolve issues in development, staging, and production environments.

Required Competence and Skills:
 

• BA or B.Sc in Computer Science or an equivalent field
• 5+ years of hands-on experience in Java development
• Strong understanding of object-oriented programming, design patterns, and clean code principles
• Familiarity with database systems (SQL/NoSQL) and query optimization techniques
• Knowledge of cloud platforms (AWS, Azure, GCP) and microservices architecture
• Experience with Spring Boot and the Spring Framework ecosystem
• Experienced with JPA (Hibernate – advantage)
• Strong understanding of REST API
• Experience in performance optimization and distributed systems.
• Excellent problem-solving skills and a proactive attitude
• Strong communication skills and the ability to collaborate in a team environment

Nice to have:
 

• Experience with Python is a strong advantage
• Experience with streaming or messaging services (Kafka, RabbitMQ)
• Knowledge of monitoring tools such as Grafana, Prometheus, or ELK Stack

• Hands-on experience with containerization and orchestration (Docker, Kubernetes)
   
  Why Us?

   

We provide 20 days of vacation leave per calendar year (plus official national holidays of a country you are based in).

We provide full accounting and legal support in all countries we operate.

We utilize a fully remote work model with a powerful workstation and co-working space in case you need it.

We offer a highly competitive package with yearly performance and compensation reviews.

About the Project

Web3 gaming project at the launch stage.
The product is preparing for market entry with a ready go-to-market plan and a core launch team (Performance Marketing, Community, KOL).

Responsibilities

• Build and manage Discord architecture: roles (Beta Tester, Holder), bots (Collab.Land), ticket system.
• Turn Discord into an active Degen Hangout.
• Organize Twitter (X) raids with rewards (WL / CLT) and maintain engagement under KOL posts.
• Plan and host AMA sessions on Twitter Spaces and Discord (Fair Play, Tokenomics, Transparency).
• Manage and grow communities on Discord, Telegram, Twitter (X), Reddit.
• Handle FUD and negative feedback using facts (audits, VRF, proofs).
• Support brand awareness via YouTube community content.
•  

Requirements

• English level B2+.
• Full-time availability.
• Experience managing Discord communities of 5,000+ members (roles, bots, permissions).
• Hands-on experience with Telegram, Twitter (X), Reddit.
• Experience with AMA sessions and Web3 marketing activities (Zealy, Galxe).
• Strong knowledge of crypto culture and slang (GM, WAGMI, Alpha).
• Ability to follow Tone of Voice and stay calm under FUD pressure.
•  

Nice to Have

• Web3 gaming or NFT experience.
• Experience with token launches or listings.

We are looking for an experienced Backend Engineer to develop and maintain our core API and backend services.

You will work on optimising performance, extending existing functionality, and building new endpoints and algorithms that power our platform.
 

You’ll collaborate closely with engineers and stakeholders across the business and have a real impact on both the product and company culture in a fast-growing startup.
 

Responsibilities
 

• Develop and maintain an evolving backend application
• Design, stabilise, and optimise RESTful APIs and services
• Support integration between the client application and backend
• Focus on performance, scalability, and code quality
• Write clean, maintainable code following best practices
   

Requirements
 

• 5+ years of experience with PHP / Laravel
• Strong experience building RESTful APIs and distributed services
• Excellent problem-solving skills and attention to code quality
• Fluent English and ability to work independently and within a team
   

Nice to have
 

• Deep knowledge of PHP/Laravel best practices
• Experience with modular or custom frameworks
• Agile experience
• Interest in fitness, health, or medicine
• Experience with Docker, Composer, GitHub, Postman, Atlassian, Linux
• Overlap with GMT+1 working hours
• Clear technical documentation skills
   

Why join us?
 

• Mission-driven startup in the fitness, health & wellness space
• Work with cutting-edge technology
• Strong culture of ownership and flexibility
• Clear processes, high standards, and talented teammates

Sharkscode is seeking a skilled Senior Back-End Developer with strong expertise in Node.js to join our Sportsbook development team. In this role, you will work on high-performance backend services, complex integrations, event-driven architecture, and real-time data flows. You will collaborate closely with product managers, developers, and QA engineers to build scalable, reliable, and efficient backend systems that support live odds, betting engines, promotions, and sports data processing.
This is a product-focused role where you will directly influence system architecture, technical decisions, and the evolution of our Sportsbook platform.

Key Responsibilities
 

• Develop, optimize, and maintain Sportsbook backend services using Node.js and NestJS.
• Design and implement REST API endpoints.
• Work with microservice architectures and distributed systems.
• Integrate external APIs (sports data feeds, payment providers, external services).
• Build and support asynchronous event pipelines using RabbitMQ and Kafka.
• Work with Redis for caching.
• Implement real-time features using WebSocket.
• Write and maintain unit tests using Jest.
• Conduct code reviews and contribute to architectural and system design decisions.
• Write maintainable, well-structured code using design patterns, OOP principles, and SOLID practices.

Requirements
 

• 5+ years of commercial backend development experience with Node.js.
• 2+ years of hands-on experience with NestJS.
• Strong proficiency in TypeScript.
• Practical experience building REST APIs.
• Solid experience with MongoDB, MySQL, or PostgreSQL.
• Strong practical knowledge of design patterns (GoF), OOP, and SOLID principles.
• Hands-on experience with WebSocket and real-time systems.
• Experience with RabbitMQ and/or Kafka.
• Experience working with microservices.
• Understanding of caching strategies and experience with Redis.

Nice to Have
 

• Experience working with high-load systems, especially those processing live sports data.
• Experience with Docker, Kubernetes, and CI/CD pipelines.
• Background in gambling/betting, especially Sportsbook (major advantage).
• Strong product mindset and experience collaborating with product teams.

What We Offer
 

• A chance to influence processes and make a visible impact on company growth.
• Competitive compensation, growing with your achievements.
• 17 paid vacation days + paid sick leave.
• Medical insurance.
• Budget for conferences, workshops, and professional training.
• Free English courses.
• Flexible working hours and a healthy work-life balance.
• A modern office in central Kyiv with free parking and a cozy work environment.
   

Crystal Intelligence is seeking an experienced Engineering Manager.

At Crystal, Engineering Managers are accountable for the process, ensuring that workflows run smoothly, priorities are aligned with business goals, and teams adhere to best practices in agile development. The successful candidate will work directly with a team of approximately 20 engineers while being part of a broader engineering organization of 50+ engineers, managing cross-squad dependencies and scaling engineering processes to meet organizational needs.

This is a fully remote role, open to candidates across Europe.

More details: crystalintelligence.com

Duties and responsibilities:
 

Leadership & Team Development:

• Manage and mentor a team of engineers and engineering leads across multiple squads, fostering growth and professional development.
• Build a collaborative and inclusive team culture that promotes innovation, quality, and accountability.
• Set clear goals and expectations, provide regular feedback, and ensure team alignment with company objectives.

Process Management & Accountability:

• Own and refine team processes, ensuring adherence to agile methodologies (e.g., Scrum) and facilitating key ceremonies (standups, sprint planning, retrospectives).
• Oversee task management in JIRA, ensuring proper prioritization, assignment, and execution of work.
• Collaborate with stakeholders to define and manage roadmaps, timelines, and deliverables.
• Drive a culture of accountability for respecting and optimizing team processes.

Technical Strategy & Execution:

• Drive the technical vision and roadmap for the Core Platform, Data Pipelines, DevEx, and DevOps squads.
• Ensure the delivery of robust, high-performance data pipelines, including blockchain integrations, with a focus on scalability and reliability.
• Advocate for best practices in software development, DevOps, and developer productivity across all squads.
• Occasionally contribute hands-on to solve critical challenges or guide technical direction.

Cross-Functional Collaboration:

• Partner with product managers, engineering managers, and other stakeholders to align platform goals with business priorities.
• Work closely with DevOps and Developer Experience teams to enhance developer productivity and streamline workflows.
• Collaborate with Core Data Pipeline squads to enable seamless blockchain integrations and data flow.

Process & Operational Excellence:

• Define and implement processes that ensure high-quality, on-time delivery of platform initiatives.
• Monitor and improve key performance metrics, such as lead time to changes, system uptime, pipeline latency, team velocity, and sprint success rate.
• Ensure platform components comply with security, compliance, and scalability requirements.

Required:
 

Experience:

• 10+ years of experience in software engineering, with at least 5 years working as a backend engineer and 3+ years in a senior leadership role managing multiple teams or squads.
• Proven experience managing a team of approximately 15 engineers while being part of a larger 50+ engineer organization with cross-squad dependencies.
• Strong technical background in system architecture, data engineering, and infrastructure management.

Process & Management Skills:

• Proven ability to manage tasks using JIRA, ensuring prioritization, tracking, and alignment with roadmaps.
• Experience in defining and managing roadmaps and aligning them with company objectives.
• Deep understanding and application of agile methodologies, including Scrum, and a strong track record of facilitating ceremonies and ensuring process adherence.
• Performance Monitoring: Ability to monitor and improve team performance using key metrics/KPIs such as velocity, throughput, and cycle time, ensuring continuous improvement.

Technical Skills:

• Familiarity with scalable architecture patterns, microservices, and distributed systems.
• Hands-on experience with data pipeline technologies, APIs, and DevOps tools (e.g., Kubernetes, Docker, Terraform).
• Solid understanding of CI/CD processes, cloud-native tools, and developer productivity enhancements.

Leadership Skills:

• Proven ability to build, manage, and mentor high-performing engineering teams.
• Excellent communication and collaboration skills, with the ability to engage effectively with technical and non-technical stakeholders.
• Experience driving cultural change and promoting a growth mindset within engineering organisations.

Problem-Solving:

• Exceptional analytical skills with a track record of solving complex engineering challenges.
• Strong decision-making abilities with a focus on balancing business and technical priorities.

Would be a plus:

• Experience with blockchain technologies and integrations.
• Familiarity with developer tooling, developer experience optimization, or DevOps practices.
• Experience scaling engineering teams and processes in a fast-paced, high-growth environment.

This role is part of the Keyword.com team — one of the growing brands within saas.group.

Keyword.com is a keyword rank tracking and SERP & AI Visibility analytics platform that helps SEO teams track rankings and uncover opportunities that matter.

Profile Overview
 

We are looking for a Senior DevOps Engineer to join us on a part-time basis to provide expert-level direction and execution for our infrastructure. This is not a "maintenance" role; we need a seasoned professional who can jump into a complex, high-scale environment and immediately begin streamlining it.

We are looking for a specialist who can work autonomously, define "golden paths" and execute high-impact architectural changes (like our cloud consolidation) with confidence.
 

Our Stack: ArgoCD, GitHub Actions, Kubernetes (AWS & Hetzner), Terraform, Ansible, RabbitMQ, Redis, Kafka connect, Debezium (MariaDB → ClickHouse), Infisical.

Your immediate impact in the first 3–6 months will be:
 

• Design and begin the execution of a pragmatic roadmap to move us from a scattered landscape toward a unified single-cloud setup
• Establishing "Infrastructure-as-Code" patterns that allow the rest of the engineering team to move safely without needing constant DevOps intervention
• Improving GitOps + CI/CD reliability so that deployments are boring, predictable, and fast

Your responsibilities:
 

• Platform Leadership: Take lead on the technical direction of our Kubernetes and cloud infrastructure, ensuring we are building for scalability and long-term reliability
• Cloud Migration Strategy: Define the milestones for our cloud consolidation and execute the high-risk migrations safely
• Developer Empowerment: Build "golden paths" (templates, tooling, and docs) that enable full-time developers to self-serve while maintaining high infrastructure standards
• IaC Excellence: Maintain and modularize our Terraform and Ansible codebases to eliminate manual steps and reduce configuration drift.
• Reliability Engineering: Level up our observability (alerts/dashboards) so that the system is easier to monitor even when you are offline.

What you bring to the table:
 

• Strong hands-on experience running production Kubernetes, including real troubleshooting and operational ownership (managed and/or self-hosted)
• Proven experience with GitOps (ArgoCD or similar) and modern CI/CD (GitHub Actions or similar)
• Deep knowledge of Terraform (modules, state management, safe rollouts) and a practical automation mindset (Ansible, scripting)
• Solid understanding of cloud primitives (networking, IAM/security, storage, compute) and distributed system failure modes
• Experience improving reliability for high-scale systems (data-heavy workloads, large storage footprints, worker fleets, microservices)
• You’re proactive and collaborative — you like being close to developers and the business, and you translate platform work into real product impact

• Excellent written and verbal English communication (we collaborate async via Slack/GitHub)

   

Nice to have:
 

• Experience leading a cloud migration / consolidation (multi-cloud → single-cloud, or on-prem → cloud)
• Strong security posture experience (least privilege, secret handling, cluster hardening)

Note on the use of AI:
 

We’re AI enthusiasts and use it daily (Claude Team Premium, ChatGPT Enterprise, Gemini Enterprise). But we’re not “vibe coders”. We use AI thoughtfully — and we take everything that lands in our repositories seriously. Regardless of where code comes from, the engineer is responsible for it.
 

What’s in it for you:

• Ultimate flexibility: We’re remote-first
• Freedom and autonomy: High trust, high ownership, and the space to do your best work
• Real impact: You’ll own a mission-critical area and directly shape the product’s future
• Small, senior team: Work closely with developers and stakeholders; move quickly and ship meaningful improvements

Job Summary

We are looking for a visionary Product Manager who thrives at the intersection of the physical and digital worlds. In this role, you will take full ownership of our connected gadgets and digital ecosystem. We expect a high level of autonomy; you won’t just be managing a backlog, you will be defining the roadmap. 

We need a partner who can speak "Engineering" to hardware partners, "User" to design colleagues, and "Business" to stakeholders. If you are excited by the challenge of synchronizing hardware manufacturing timelines with agile software sprints, this role is for you.

Responsibilities and Duties

• Uncover and solve real customer problems
• Drive product strategy and roadmap, define and own KPIs translating into measurable business outcomes
• Prioritize feature requests based on perceived ROI and UX Research data
• Write clear and concise customer stories and product requirements
• Manage and effectively communicate feature requirements
• Support the Engineering & QA teams throughout the whole SDLC by clarifying requirements and refining the QA approach
• Monitor product performance and proactively identify opportunities for improvements
• Identify risks, issues, and problems and escalate as appropriate, work out mitigations with appropriate stakeholders.
•  

Qualifications and Skills

• 4+ years of product management experience in a high-paced, demanding environment with proven, measurable positive impact on customer experience and/or revenue.
• Exceptional ability to lead, build relations, and drive alignment across various engineering, design, and business stakeholders.
• Well-grounded in key concepts and metrics around connectivity, networking, video streaming, motion detection, and other smart home-related technologies for efficient discussions with Engineering.
• Understanding of key concepts of Computer Vision and Machine Learning models training.
• Strong ability to advocate for customers in building products and designing experiences when stakeholders push for a “simpler solution”. 
• Experience in building (or commissioning) monitoring dashboards for enterprise analytics tools: Tableau, Splunk, Power BI or the likes for product metrics monitoring and customer insights. 
• Expertise in technical writing, specifically in creating clear, unambiguous PRDs.
• At least an Upper-Intermediate level in both written and spoken English (B2).

Position Summary:

We are looking for a talented Senior Data Platform Engineer to join our Blockchain team, to participate in the development of the data collection and processing framework to integrate new chains. This is a remote role and we are flexible with considering applications from anywhere in Europe.

More details: crystalblockchain.com

Duties and responsibilities:

• Integration of blockchains, Automated Market Maker (AMM) protocols, and bridges within Crystal's platform;
• Active participation in development and maintenance of our data pipelines and backend services;
• Integrate new technologies into our processes and tools;
• End-to-end feature designing and implementation;
• Code, debug, test and deliver features and improvements in a continuous manner;
• Provide code review, assistance and feedback for other team members.

Required:

• 8+ years of experience developing Python backend services and APIs;
• Advanced knowledge of SQL - ability to write, understand and debug complex queries;
• Data Warehousing and database basic architecture principles;
• POSIX/Unix/Linux ecosystem knowledge;
• Strong knowledge and experience with Python, and API frameworks such as Flask or FastAPI;
• Knowledge about blockchain technologies or willingness to learn;
• Experience with PostgreSQL database system;
• Knowledge of Unit Testing principles;
• Experience with Docker containers and proven ability to migrate existing services;
• Independent and autonomous way of working;
• Team-oriented work and good communication skills are an asset.

Would be a plus:

• Practical experience in big data and frameworks – Kafka, Spark, Flink, Data Lakes and Analytical Databases such as ClickHouse;
• Knowledge of Kubernetes and Infrastructure as Code – Terraform and Ansible;
• Passion for Bitcoin and Blockchain technologies;
• Experience with distributed systems;
• Experience with opensource solutions;
• Experience with Java or willingness to learn.

On behalf of our client, we are looking for a Senior Data Engineer to strengthen the data team by building and optimizing data pipelines for the IN-Gauge SaaS platform used by global hotel chains

Responsibilities:

- Build and optimize high-volume ETL/ELT pipelines for hospitality data

- Support ongoing architectural improvements of the data platform

- Work with Spark/PySpark in production environments

- Collaborate with the team to ensure reliable data processing and delivery

Requirements:

- 5+ years of experience as a Data Engineer

- 2+ years of production experience with Spark / PySpark

- 2+ years of hands-on experience with AWS (latest project on AWS)

- Experience building and supporting ETL/ELT pipelines in production

- Upper - Intermediate or higher level of English

Nice to Have:

- Kafka / Kinesis, DynamoDB, Fargate / Step Functions

- Airflow or batch orchestration tools

- Lake Formation / Athena

- Experience with big data migrations

- Ability to read Spark UI and troubleshoot OOM issues

Company offers:

- Long-term employment with possibilities for professional growth

- Fully remote work

- Reasonably flexible schedule

- 15 days of paid vacation

- Regular performance reviews

We are seeking an experienced Software Engineer with strong Python development skills and DevOps expertise to join our platform engineering team. In this role, you will design, build, and maintain high-quality software while also contributing to our infrastructure and deployment processes.

Key Responsibilities

• Design, develop, and maintain Python-based applications and services
• Implement DevOps practices to improve deployment processes and system reliability
• Build and maintain CI/CD pipelines for automated testing and deployment
• Configure and manage cloud infrastructure resources
• Monitor system performance and optimize application efficiency
• Collaborate with cross-functional teams to define requirements and deliver solutions
• Mentor junior engineers and contribute to technical documentation
• Participate in code reviews and ensure code quality standards
   

Requirements

• 4+ years of professional software development experience
• Strong Python programming skills with demonstrated proficiency
• Experience with DevOps practices and tools (CI/CD, infrastructure as code, gitops)
• Knowledge of containerization technologies (Docker, Kubernetes)
• Familiarity with cloud platforms (AWS, GCP, or Azure)
• Experience with monitoring/logging/tracing solutions
• Experience with message queuing systems (Kafka, RabbitMQ, BullMQ)
• Proficiency with databases including PostgreSQL, MongoDB, and Redis
• Experience with Python's asyncio for asynchronous programming
• Excellent problem-solving and debugging skills
• Strong communication and collaboration abilities
   

Preferred Qualifications

• Experience with Python web frameworks (Flask, FastAPI)
• Understanding of microservice architecture
• Knowledge of security best practices
• Contributions to open-source projects
   

What we offer

• Innovative Product Company: Be part of a company with a long-term vision that values sustainable growth.
• High-Performing Team: Join a talented team that supports your professional growth and values your expertise.
• Career Growth: Opportunity to step up as a Backend Lead, leading projects and mentoring other team members.
• Impactful Work: Take ownership of projects that directly affect our users, product, and business strategy.
• Comprehensive Benefits: Enjoy medical insurance, sport compensation, and other perks that support your well-being.
• Flexible Work Arrangement: B2B contract with a US-based company, allowing for a remote-first setup that fits your lifestyle.

We are seeking a Senior DevOps Engineer with strong development experience in Go and Python to join our infrastructure team. In this role, you will lead and implement DevOps practices while leveraging your programming expertise to build automation tools, improve infrastructure, and enhance system reliability.

Key Responsibilities

• Design, implement, and manage our cloud infrastructure across multiple environments (all major clouds and self-hosted)
• Develop and maintain infrastructure as code using modern tooling and GitOps approaches
• Build kubernetes operators and custom solutions using Go and Python
• Lead CI/CD implementation and continuous improvement efforts
• Monitor system health, performance, and security using modern stacks and OpenTelemetry
• Design and implement scalable and resilient architecture solutions
• Collaborate with development teams to improve deployment workflows
• Troubleshoot and resolve complex infrastructure and application issues
• Establish best practices for infrastructure management and security
• Mentor junior team members on DevOps practices and technologies
   

Requirements

• 6+ years of experience in IT operations, systems engineering, or a similar role
• 3+ years of professional software development experience in Go and/or Python
• Strong experience with GitOps and infrastructure as code tools (ArgoCD, Flux, Terraform)
• Expertise in containerization technologies (Docker, Kubernetes)
• Deep knowledge of cloud platforms (AWS, GCP, or Azure)
• Experience designing and maintaining CI/CD pipelines (GitHub Actions or GitLab CI/Concourse)
• Proficiency with monitoring, logging, and observability tools and practices (Prometheus Stack and OTel)
• Strong Linux/Unix system administration skills
• Knowledge of networking concepts and security best practices
• Excellent problem-solving abilities and communication skills
   

Preferred Qualifications

• Experience with microservices architecture
• You can explain Kubernetes to your non-technical friends without making their eyes glaze over
• Knowledge of database administration (PostgreSQL, MongoDB, Redis)
• Experience with message brokers and event streaming platforms (Kafka, RabbitMQ)
• Familiarity with service mesh concepts (Envoy, Istio, Linkerd)
• Experience with GitOps workflows
• Contributions to open-source projects
• Your infrastructure diagrams are works of art (or at least comprehensible)
• Experience leading technical projects and mentoring other engineers
   

Team Culture

• Our infrastructure team handles more layers than a well-designed Kubernetes cluster
• We're like Git - always ready to commit to good ideas and branch out when needed
• "Move fast and fix things" is our motto (we're not breaking production on Fridays)

What we offer

• Innovative Product Company: Be part of a company with a long-term vision that values sustainable growth.
• High-Performing Team: Join a talented team that supports your professional growth and values your expertise.
• Career Growth: Opportunity to step up as a Backend Lead, leading projects and mentoring other team members.
• Impactful Work: Take ownership of projects that directly affect our users, product, and business strategy.
• Comprehensive Benefits: Enjoy medical insurance, sport compensation, and other perks that support your well-being.
• Flexible Work Arrangement: B2B contract with a US-based company, allowing for a remote-first setup that fits your lifestyle.

The fast-growing product company is looking for experienced Backend Developer. You will work on the innovative product for collecting, visualizing, analyzing and making sense of data from drilling rigs to help oilfield companies optimize their operations and ensure safety.

Technology Stack

Python 3.9, Asyncio, Pytest, AWS(Lambda, SQS, S3), MongoDB, Redis, Kafka, Docker & k8s (Go, TS, Java, Ruby, Node used in other teams).

Responsibilities and Duties:

• Design and Develop: Architect and deliver efficient, well-documented, and highly readable code that sets the standard for quality.
• Continuous Learning: Dive into new technologies and product disciplines, driving innovation within your team.
• Project Leadership: Define development plans based on project requirements and ensure timely delivery while maintaining flexibility for changes.
• System Stability: Oversee the stability of your projects and monitor overall system health, ensuring smooth operation post-release.
• Collaborative Code Reviews: Lead code reviews with peers, fostering a culture of continuous improvement and best coding practices.

Qualifications and Skills:

• Experienced Developer: Minimum of 7 years of hands-on experience with Python, working on large-scale projects that challenge your problem-solving skills.
• Database Knowledge: Familiarity with NoSQL databases and the ability to design data models that perform well.
• Effective Communicator: Comfortable presenting ideas and technical details clearly to internal teams.
• People Management Skills: Experience in mentoring or leading small teams is a bonus, as the role offers opportunities to grow into a Backend Lead position.

What We Offer:

• Innovative Product Company: Be part of a company with a long-term vision that values sustainable growth.
• High-Performing Team: Join a talented team that supports your professional growth and values your expertise.
• Career Growth: Opportunity to step up as a Backend Lead, leading projects and mentoring other team members.
• Impactful Work: Take ownership of projects that directly affect our users, product, and business strategy.
• Comprehensive Benefits: Enjoy medical insurance, sport compensation, and other perks that support your well-being.
• Flexible Work Arrangement: B2B contract with a US-based company, allowing for a remote-first setup that fits your lifestyle.

Five Jars is open to welcoming an experienced (Middle) self-motivated Software Engineer into our team of professionals. We are looking for an engineer with a solid professional background in both Drupal and WordPress development within a software delivery environment. Also, there is a chance to participate in projects based on Node.js, Vue.js, Nuxt, etc.

This role offers a great mix of work. You’ll keep our existing projects running smoothly (Support & Maintenance) while also building fresh features for new projects.

If you are an ambitious person who knows how web development works and is comfortable using modern tools, including AI(such as Claude, Coodex, Copilot), to work smarter, we have an excellent opportunity for you to reach your full potential!

Who are we?

Five Jars is a US-based, full-service web development agency led by leaders with 15+ years of experience in technology. We specialize in helping companies make intuitive digital experiences that create measurable impact.

As professionals, we deliver high-quality web products to our US-based clients in multiple industries: education, health & fitness, nonprofit, media, enterprise, art & culture. As a team of creative and talented experts, we love our projects, working together, and doing everything to ensure the company’s and clients’ growth.

Goals

• Join our team and help strengthen it with your experience across both CMS platforms.
• Provide high-quality Support & Maintenance: Monitor site health, apply security patches, and resolve bugs for Drupal and WordPress projects.
• Participate in the design and planning of new features for fixed-price projects.
• Produce clear, well-structured, cross-browser, testable, scalable, high-quality code.
• Review requirements, specifications, and technical design documents to provide timely and meaningful feedback.
• Interact with Project Managers, Tech Leads, QA, Designers and others as needed to resolve blockers and move a project towards a successful finish.
• Help the team meet deadlines and milestones.

Expected Results

• Timely and high-quality development: You ensure updates and features are deployed without regressions.
• Problem Solver: You’re a person who can jump on a difficult support ticket, diagnose the root cause, and fix it.
• Versatility: You’re a person who can answer scope-related questions for both Drupal and WordPress contexts.
• Innovation: You’re a person who always looks for innovative ideas/features/tools to be implemented, including AI automations.
• Ownership: You’re a person who is responsible for the quality of developed solutions.
• Documentation: You’re a person who writes technical documentation (if needed) to help the team understand maintenance procedures.
• Team Player: You’re a person who can answer questions (if you know the answer) even if they were not addressed to you.

Professional Skills & Requirements

• Experience: 3+ years of commercial experience in web development.
• Drupal Expertise: Developing Drupal 9/10+ modules, themes, and distributions; knowledge of Drupal best practices.
• WordPress Expertise: Proficiency in WordPress core, custom theme creation, and plugin development.
• AI Proficiency: Comfort using AI coding assistants (e.g., GitHub Copilot, ChatGPT, Claude) to accelerate debugging and code optimization.
• Core Stack: Strong coding skills in PHP, MySQL/SQL or PostgreSQL, and strong OOP knowledge (design patterns and principles).
• Front-End: Solid knowledge of HTML5, CSS3, Tailwind 3/4, and JavaScript/jQuery (concepts like closures, prototyping).
• DevOps: Basic knowledge, such as how to work with Linux, how to work with docker and deploy to a server, etc.
• Tools: Working with Git, Jira, and UNIX systems.
• Language: Upper-Intermediate+ (B2/C1) English level. You must be able to speak well and understand the language to collaborate with international teams. Be ready to participate in clients' meetings.

Day-to-Day Responsibilities

• Working in a friendly and ambitious environment.
• Diagnosing and resolving support issues (bugs, performance) across Drupal and WordPress sites.
• Performing routine maintenance (updates, security patches).
• Developing new features and integrations for fixed-price projects.
• Making technical decisions to best solve tasks efficiently.
• Helping other team members deliver projects on time with the best quality.
• Reviewing work made by other team members (Code Review).
• Being proactive and responsible for the code you write.

We Propose

• 100% remote work.
• Fair compensation with regular performance reviews.
• 7-hour working day and flexible schedule.
• Benefits such as vacation, sick leave, and days off during official national holidays.
• Warm and friendly working environment with flexibility in making decisions and no micromanagement.
• Professional growth: Help with learning new things (courses, books, etc.) and support in participating in conferences.
• Team building and other sorts of online/offline team activities.

About us:

Our product is a fitness mobile application with AI generation of the fitness plan creation and analization of user’s performance.

The application is developing for iOS and Android, built using React Native and Expo. Our goal is to create a fast, reliable, and scalable user experience while maintaining a simple, pragmatic, and adaptable architecture that is ready for growth.

We intentionally work with a lean stack:

• AI-powered features built with Vercel AI SDK, integrating modern LLM-based workflows directly into the product
• React Native / Expo for cross-platform mobile development
• TypeScript with strict typing and schema-first validation
• Supabase (PostgreSQL, RLS) as a backend platform to minimize custom infrastructure

• Clerk for authentication and identity management

   

About the role:

As an AI Engineer for this health-tech mobile product, you will be responsible for shaping the AI agent and driving production-ready LLM experiences centered around the AI agent. You will work within a modern stack to build reliable services and handle complex data generated for the user avatar.

 

Key Responsibilities

• Advanced Prompt Engineering: You will design complex, dynamic prompt templates with conditional logic to ensure the AI avatar provides high-quality, personalized motivation based on specific user inputs and context.

• Structured Outputs & Schemas: You will design an AI agent in a way to ensure the avatar's health and nutrition advice is predictable and fits the app’s logic.

• Observability & Debugging: Using Langfuse (or similar), you will perform deep debugging of LLM chains to identify bottlenecks and optimize for cost, latency, and context window usage. You will also develop scoring systems to identify and resolve logic errors or hallucinations in the avatar's reasoning.

• AI A/B Testing & Evaluation: You will run systematic experiments via OpenRouter to compare different models and make deployment decisions based on quantitative benchmarks rather than intuition.

Qualifications & Technical Skills

• AI Frameworks: Proven experience with AI SDKs for managing complex workflows.

• Cursor experience is a plus.

• Core Stack: React Native, TypeScript, Supabase, Clerk, Vercel AI SDK.

• Observability Tools: Proficiency in Langfuse (or similar) for tracing, creating test datasets, and integrating real-time feedback scoring.

• Evaluation Methodology: Experience building deterministic validation systems.

• Analytical & Iterative Mindset: The ability to transform raw logs into actionable technical insights and a focus on continuous product improvement.

For our fast-growing startup client, which is a global leader in financial infrastructure solutions, together with the client, we build complex solution which is unlocking private credit and providing unparalleled access through its modern marketplace, empowering investors, borrowers, and managers with innovative technology to increase the speed and frequency of transactions at a fraction of the cost. The solution's core infrastructure delivers public market efficiencies to the analog private credit market by powering the sourcing, structuring, syndication, surveillance and servicing of private credit transactions from beginning to end. The platform is becoming the market standard for asset-based and corporate lending, powering over $2 billion in transaction volume in a multi-trillion-dollar private credit industry.
We are seeking a talented Senior DevOps Engineer to be a driving force behind our mission to modernize the private credit market. In this role, you won't just manage infrastructure; you'll design, secure, and scale the core systems that power our platform. You will be a catalyst for reliability and efficiency, responsible for building cloud-native systems, automating processes, and ensuring best-in-class security practices across the entire stack.

Responsibilities

Infrastructure as Code: Design, build, and maintain AWS infrastructure using Terraform.

Cloud Operations: Manage, monitor, and optimize AWS services including EKS, RDS Aurora PostgreSQL, VPC, and IAM.

Containerization & Orchestration: Build and operate Kubernetes clusters and Dockerized applications in production.

CI/CD & GitOps: Develop and maintain CI/CD pipelines (GitHub Actions, GitOps workflows) and data orchestration (Airflow DAGs).

Database Reliability: Ensure performance, scalability, and reliability of Aurora PostgreSQL with strong security and backup practices.

Monitoring & Incident Response: Design and operate observability systems (metrics, logs, traces, alerting, availability, etc) and lead structured incident response and postmortems.

Security & Compliance: Apply DevSecOps principles to safeguard infrastructure, manage secrets, and adhere to compliance frameworks (SOC2).

Collaboration: Partner closely with engineering teams to embed secure and scalable infrastructure practices into development workflows.

Automation & Innovation: Continuously drive automation and improvements in deployments, testing, and system reliability.

Skills

Must have

5-10 years of DevOps, SRE, or infrastructure engineering experience in a cloud-native environment

Proven expertise with AWS (EKS, RDS, EC2, S3, VPC, IAM)

Strong experience with Terraform and GitOps workflows

Hands-on expertise with Kubernetes and Docker

Solid knowledge of PostgreSQL operations and performance tuning

Strong security-first mindset; experience hardening systems and managing secrets

Familiarity with compliance frameworks such as SOC2

Proficiency with scripting languages (Python, Bash)

Experience designing highly available systems across multiple AZs and regions

Track record of reducing toil via scripting, automation, and developer tooling

Excellent problem-solving and communication skills

Self-motivated team player able to work independently in a fast-paced environment

Nice to have

Experience in FinTech domain