Jobs at Djinni

Job Description

• 6+ years of experience in cloud infrastructure architecture and DevSecOps, with a specialized focus on Microsoft Azure enterprise environments.
• Strong proficiency in Infrastructure as Code (IaC) utilizing Terraform and Azure Resource Manager (AzureRM).
• Deep expertise in designing, automating, and maintaining continuous integration and continuous delivery (CI/CD) pipelines via Azure DevOps and Azure Pipelines.
• Proven experience in containerization and cloud orchestration using Azure Container Registry (ACR), Helm 3.x charts, and Alpine Linux container images.
• Expert-level knowledge of cloud security, networking, Web Application Firewall (WAF) configuration, Azure Defender scanning, Azure Key Vault secrets management, and Azure RBAC authorization models.
• Solid background in observability, centralized log management, and performance analytics using Azure Monitor, Azure Application Insights, and Log Analytics.
• Practical experience integrating static code quality gates (SonarQube) and automated test management tools within deployment pipelines.
• Solid understanding of underlying cloud database and messaging infrastructure, including Azure SQL Managed Instance, Snowflake, Redis Cache, and Azure Service Bus.
• Self-organized personality with strong verbal/written communication skills for leading cloud engineering teams and presenting architectural solutions to technical stakeholders..

Job Responsibilities

• Define the end-to-end cloud infrastructure topology, environment strategies (Dev, QA, UAT, Prod), and DevSecOps deployment frameworks.
• Build, configure, and manage scalable Infrastructure as Code (IaC) modules using Terraform for cloud resource provisioning.
• Design, build, and maintain automated CI/CD pipelines in Azure DevOps to support Angular frontend builds, .NET 8 backend microservices, and Python AI components.
• Configure and manage container repositories, image vulnerability scanning, and release orchestration via ACR and Helm 3.x.
• Implement comprehensive monitoring, metrics collection, log aggregation, and alert management frameworks across all active cloud environments.
• Address cloud infrastructure security risks, managing network boundaries, WAF rules, identity access controls (Azure Entra External ID), and secret rotation schemes.
• Apply automation techniques to streamline dynamic feature flag management, app configurations, and multi-tenant resource provisioning.
• Deliver technical leadership to DevOps engineers, conduct rigorous infrastructure reviews, and collaborate directly with backend leads, frontend architects, and product managers.

Department/Project Description

Our client is developing an advanced industrial asset intelligence platform engineered to drive digital aftermarket transformation and equipment lifecycle monetization. The system integrates edge hardware telemetry, on-premise production software, cloud data warehouses, and generative AI to deliver a unified real-time asset tracking, service optimization, and aftermarket commerce experience for factory operators, field service engineers, and distributors.
The platform architecture centers on a multi-tenant Microsoft Azure cloud foundation anchored by Azure App Services, Static Web Apps, Azure Container Registry (ACR), Alpine Linux container environments, Helm 3.x charts, Snowflake data warehousing, and Azure OpenAI Service.
The engineering initiative focuses on architecting automated Infrastructure as Code (IaC) with Terraform, establishing enterprise CI/CD pipelines via Azure DevOps, configuring Web Application Firewalls (WAF) and Azure Defender, integrating static code security analysis (SonarQube), and managing end-to-end observability (Azure Monitor, Application Insights, Log Analytics) across Dev, QA, UAT, and Production environments.

A backend-focused engineering position on a transformation project for an international travel company. The engineer will own features end-to-end - from planning and design through building, testing, and release.

Key Responsibilities 

-Own features end-to-end (plan, design, build, test, release) 

-Build and maintain Ruby on Rails systems 

-Contribute to full-stack work (Rails-heavy, with frontend involvement as needed) 

-Write tested, high-quality code 

-Use AI coding agents to maximize efficiency 

-Participate in code reviews 

-Maintain systems and resolve production issues 

-Collaborate with Product, Design, and Quality Engineering teams

Required Qualifications 

-Proficiency in Ruby on Rails with production experience 

-Strong database schema design and data modeling skills 

-RESTful API design experience 

-PostgreSQL and AWS infrastructure knowledge 

-Demonstrable experience with AI coding agents, or strong enthusiasm to adopt them 

-Good English 

-Team-oriented with strong communication skills 

-Pragmatic about speed/quality/scope tradeoffs

Tech Stack 

-Ruby on Rails, PostgreSQL, AWS, Next.js, Vercel. Trunk-based development with CI/CD and multiple daily deployments. 

Nice to Have 

-E-commerce or travel platform experience 

-An eye for UX/design 

-Travel enthusiasm

We offer:

• Attractive financial package

• Challenging projects

• Professional & career growth

• Great atmosphere in a friendly small team

RedCore is an international business group that creates technological solutions for digital markets. Our products and services cover fintech, marketing, e-commerce, customer service, communications and regulatory technologies. 

We are looking for a Monitoring Manager to join our team!

Requirements:

- Understanding of the basics of search engines;
- Ability to search for necessary information on different GEO;
- Basic knowledge of Google docs/sheets, Google Analytics.

Will be plus:

- English language skills

Responsibilities:

- Collection and processing of data in areas requiring monitoring.
- Prompt submission of complaints when violations are identified.
- Interaction with platforms/support regarding complaint review processes.
- Analysis of identified violations and their classification by type and priority.
- Interaction with platforms/support regarding complaint review processes. (duplicate in original text)
- Tracking the effectiveness of submitted complaints and their outcomes.
- Maintaining and updating an internal database of websites.
- Researching new methods for submitting complaints.

What are the conditions and bonuses?

☘️An exciting and challenging job in a fast-growing product company, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance and other;

🤝🏻Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed;

📍Beautiful offices in Warsaw, Limassol work remotely or on-site with comfort and enjoy the opportunity to build a network of connections with professionals day by day;

🧑🏻‍💻Laptop & all necessary equipment for work according to the ecosystem standards;

🏖Paid vacations, personal events days, days off;

🫖Paid sick leave;

👨🏻‍⚕️Medical insurance;

💵Referral program enjoy cooperation with your colleagues and get the bonus;

📚Educational support by our L&D team: internal and external trainings and conferences, courses on Udemy;

🗣Free internal English courses;

🧘Sport benefit;

🦄Multiple internal activities: online platform for employees with quests, gamification and presents for collecting bonuses, RedCore talks club for movie and book lovers, board games cozy evenings, special office days dedicated to holidays;

🎳Company events, team buildings.

Team Lead Infrastructure / NOC-SRE Lead

We are hiring for our partner — an international crypto payments company — and are looking for a Team Lead Infrastructure / NOC-SRE Lead to lead an infrastructure and production operations team.

This is a hands-on leadership role: you’ll manage the NOC / Infrastructure / SRE team, improve operational processes, own incident management and escalations, while staying technically involved in complex Linux, networking, and database troubleshooting.

What you’ll do

• Lead and develop the NOC / Infrastructure / SRE team

• Organize shifts, on-call rotations, escalations, and team coverage

• Own incident management: alerts, routing, SLA/SLO, escalation, and postmortems

• Drive RCA and problem management

• Build and improve operational processes in Jira, Confluence, KB, and task trackers

• Improve monitoring, alerting, and observability

• Coordinate with Development, QA, DevOps, and Product teams

• Take hands-on involvement in complex production incidents

• Troubleshoot Linux, networking, and databases at L3 level

• Create and maintain documentation, runbooks, procedures, and operational standards

• Mentor engineers and ensure the quality and consistency of the team’s work

• Continuously improve infrastructure reliability and operational efficiency

What we’re looking for

• Previous experience as a Team Lead, NOC Lead, Infrastructure Lead, or SRE Lead

• Proven experience managing and mentoring an engineering team

• Experience supporting production and business-critical services

• Strong background in incident management and escalation processes

• Practical experience with RCA, postmortems, and problem management

• Solid Linux administration background

• Strong networking fundamentals: TCP/IP, routing, DNS, DHCP, NAT, VPN

• Experience with monitoring and alerting tools such as Zabbix, Grafana, Prometheus, Alertmanager, New Relic, Splunk, or similar

• Experience with Jira, Confluence, knowledge bases, or similar tools

• Ability to build effective processes without unnecessary bureaucracy

• Willingness to remain hands-on, not purely managerial

• English sufficient for technical documentation and communication

Nice to have

• SRE background

• Kubernetes / Docker

• Terraform / Helm / GitLab CI

• Cloud experience: GCP / AWS / Azure

• PostgreSQL / MySQL

• MikroTik / L2-L3 switches / VLAN

• Experience with 24/7 production operations

• Background in fintech, crypto, highload, or e-commerce

If you’re an experienced infrastructure leader who can combine team management, operational excellence, and deep technical expertise, we’d love to hear from you.

Phenomenon Studio is a boutique product design and development agency founded in 2019. We work with teams who’ve outgrown what they’ve built — from venture-backed startups to established market leaders — and own the work end to end: strategy, design, development, and post-launch.

The team of 70+ senior specialists is based in Europe, with entities in the USA, Estonia, and Switzerland, serving SaaS, Fintech, Healthcare, and EdTech. Across 120+ launches, clients have raised $500M+. Phenomenon is HIPAA-compliant, Nielsen Norman Group UX certified, and a Webflow Experts partner, holding a 5.0 rating on Clutch — and most clients come back for a second project.

We’re looking for a Senior Product Designer who treats a brief as a hypothesis rather than a specification.

Advantages of the role

• You own complex projects end to end. You don’t just do one part of someone else’s plan — you find the problem, decide what to do, and take responsibility for the result
• You’ll talk directly with the client to understand their needs and expectations, then present your solutions and stand behind them
• We submit product work to awards that judge the thinking, not the surface — Red Dot, UX Design Awards
• A design community of 30+ designers who give honest feedback, share second opinions, and help you think through decisions — people who’ve been in your shoes
• You’ll have a personal mentor to support you. Down the line, you’ll get to be that person for someone else

Requirements

• 5+ years of commercial product design experience, a substantial part of it in an agency or outsourcing setup
• Ability to take a project from 0 to 1 as the only designer on it
• Experience across both web and mobile products (iOS, Android)
• Strong visual craft — work that carries a brand and holds up in use, not just structurally sound layouts
• Experience optimising user journeys against metrics: engagement, conversion, retention
• Experience with UX research and behaviour analysis tools (Hotjar, Amplitude, Google Analytics, etc.)
• Proficiency in Figma (tokens, components, variables, auto-layout)
• Proficiency in modern AI tools for building live demo prototypes and products — Claude Code, Cursor, and similar — and using AI in your workflow without losing quality
• Strong spoken English (B2+ level). You’ll run calls, present and defend solutions, and handle client disagreements directly, alongside the PM.
• A case showing measurable impact on product metrics — required, either in your cover letter or already in your portfolio

What the role actually asks of you

• Identifying the real problem, even when it’s not what the client originally asked for — and being able to explain its importance.
• Adapting the process to the project instead of running the framework to the end
• Identifying the outcome your work should produce, and how anyone would know you met it
• Deciding without complete information — judging business, tech, and budget factors yourself, and acting on it
• Explaining the reasoning behind your solutions to the client, not just presenting layouts

This role is probably not a fit if

• Your answer to “why is it built this way?” is “that’s what the client / PM / Lead asked for”
• You need a detailed PRD or spec before you can start working
• You pass decisions upward instead of bringing a recommendation and the reasoning behind it
• Your case studies show only deliverables — flows, wireframes, a design system, not your reasoning, decisions, or the results.

What we offer

• Remote work format and flexible schedule
• Autonomy in work, opportunity to build processes, and grow within the company
• Individual development plan and annual performance review
• Workshops and playgrounds for continuous learning
• Compensation for subject-matter training
• Corporate English classes
• Access to IT Loyalty Club
• Accounting support
• 18 working days of annual leave
• 7 working days of sick leave and 7 working days of unpaid leave
• All national public holidays off

Recruitment process: Recruitment interview — Technical interview — Final interview

We are hiring for our partner — an international crypto payments company — and are looking for a strong Senior Linux System Administrator to join their production infrastructure team.

You’ll work on a B2B crypto payments product, supporting reliable and secure production infrastructure. This is a hands-on role focused on Linux, networking, infrastructure troubleshooting, system performance, and production stability.

This is not a Helpdesk, Windows/M365, or end-user support position.

What you’ll do

• Administer and maintain production Linux servers

• Perform L3 troubleshooting across Linux, networking, services, and databases

• Monitor and troubleshoot CPU, memory, disk, I/O wait, inodes, load average, and systemd

• Work with TCP/IP, routing, NAT, firewalls, and traffic management

• Configure and support OpenVPN / WireGuard

• Work with iptables / nftables

• Administer and troubleshoot MikroTik

• Support PostgreSQL / MySQL, including backups, restores, users, and basic diagnostics

• Investigate incidents and perform Root Cause Analysis (RCA)

• Maintain technical documentation, runbooks, and knowledge bases

• Perform production changes carefully with change plans, backups/snapshots, and rollback procedures

• Automate routine tasks using Bash, Python, or Ansible

What we’re looking for

• 5+ years of Linux system administration experience

• Strong hands-on experience with Ubuntu / Debian / CentOS

• Confident with systemd, journalctl, dmesg

• Strong performance troubleshooting skills: OOM, CPU pressure, I/O wait, disk pressure, inodes

• Solid understanding of TCP/IP, routing, NAT, and firewalls

• Experience with OpenVPN or WireGuard

• Experience with iptables or nftables

• Hands-on experience with MikroTik

• Experience supporting PostgreSQL / MySQL, including backup and restore

• Understanding of production safety and change management

• Experience with RCA / problem management

• English sufficient for reading technical documentation

Nice to have

• Ansible

• Bash / Python scripting

• Nginx / HAProxy

• Experience with highload, crypto, fintech, payments, hosting, or telecom

Details

Schedule: shift-based

• 08:00–17:00

• 09:00–18:00

• 15:30–00:30

If you enjoy solving complex production incidents, digging into root causes, and keeping infrastructure stable and reliable in a crypto payments environment, we’d love to hear from you.

We are hiring for our partner — an international crypto payments company — and are looking for an IT Infrastructure / L3 Support Engineer to join an established infrastructure team.

You’ll work on a B2C product, supporting internal and production infrastructure across Linux, Windows, Microsoft 365, identity management, networks, databases, backups, and containers.

This is a hands-on L3 infrastructure role for a system administrator who enjoys solving technical issues across different areas rather than focusing on just one technology.

What you’ll do

• Administer Linux and Windows guest operating systems

• Provide L3 infrastructure support and troubleshoot complex technical issues

• Administer Microsoft 365 environments

• Manage Microsoft Entra ID / Azure AD

• Manage users, accounts, permissions, licenses, and corporate access

• Administer Slack and related integrations

• Manage domains and corporate working environments

• Support corporate networks and network security

• Work with pfSense / MikroTik

• Support databases and business applications

• Perform backup and restore operations

• Work with Docker / containers and basic automation

• Monitor infrastructure, investigate logs, and troubleshoot incidents

• Maintain technical documentation, task trackers, and knowledge bases

What we’re looking for

• 3+ years of experience in System Administration / IT Infrastructure

• Strong hands-on experience with Linux and Windows

• Practical experience with Microsoft 365 administration

• Experience with Microsoft Entra ID / Azure AD

• User, account, access, and permission management

• Good understanding of corporate networking

• Hands-on experience with pfSense or MikroTik

• Experience supporting databases, including backup and restore

• Experience with Docker or similar container technologies

• English sufficient for reading technical documentation

• Comfortable working in a shift-based schedule

• Strong attention to detail and ability to follow established processes

Nice to have

• Slack administration

• Entra ID ↔ Slack integrations

• Bash / Python scripting

• Ansible

• Experience in a B2C / product company

• Experience with task trackers and knowledge bases

• Nginx / HAProxy

Details

Schedule: shift-based

• 01:30–09:30

• 09:00–18:00

• 17:00–01:00

You’ll join an established team and work across a broad infrastructure stack, combining system administration, L3 troubleshooting, identity management, networking, and infrastructure support.

We’re looking for our first dedicated marketing person: hands-on, generalist, willing to learn fast. You’d be working directly with the founder (one person, no committee, no politics), running day-to-day marketing execution across our products (we’re shipping consumer apps on iOS and MacOS)

This is a full-time, remote role (35–40 hrs/week). Initial 3-month engagement with strong intent to extend if it’s working. Could grow into a Marketing Lead role as the portfolio scales.

What you’d actually do:
Your time will shift between our products based on what’s live, what’s launching, and what needs the most attention. Expect 2–4 products active in your queue at any time. Across them:

- Basic SMM. Run TikTok, Instagram accounts for our apps. Mostly base for launching ads and influencers outreach. We give you the playbook.
- Creator outreach. Find influencers of small and medium size (1K–10K, 10K-100K followers) in each product’s niche. Reach out, send brief, pay them, collect content, track results. Markets vary — often US, Europe, Brazil, Japan.
- Community participation. Genuine presence in the Reddit / Discord / Telegram communities relevant to each product. Help people, build credibility, mention the app only when it actually helps the conversation. We do NOT spam.
- Newsletter sponsorships . Find small targeted newsletters per product, negotiate small ads.
- Reporting & systems. Weekly metrics sheet across all products (downloads, ratings, install sources, MRR). Weekly Friday written report across all projects.

Who you are:
Ambitious junior or self-taught marketer. The role demands real ownership. You’ll get a budget, a playbook, and weekly priorities — then you decide what to ship and when. We don’t want someone who needs daily approval to do the next obvious thing.

Required:
- Strong written English
- Active TikTok user — you get how it works in 2026
- Comfortable on Pinterest, Reddit, Instagram at user level
- Comfortable juggling 2–4 different products with different audiences and brand voices, without mixing them up
- Spreadsheets (Google Sheets), comfortable in Notion or similar
- Self-directed: weekly plan, ship, iterate, raise blockers early
- Honest about what works and what doesn’t

Would be a plus:
- Efficient with AI
- Personal interest in consumer tech and design
- Basic Canva or Figma
- Previous experience juggling multiple small clients or projects in parallel
- Familiarity with App Store Connect or app analytics tools

Not required:
- A marketing degree
- Years of experience
- Agency background
- Knowing “ASO” or “CAC” — we’ll teach what you need

How we work:
- Async-first. Daily Slack/ check-in, weekly call.
- Weekly Friday written update across all projects.

We are looking for a Middle/ Middle+ PHP Developer to join a long-term project focused on building and evolving a complex data-processing platform in the Construction Technology domain.

This role is centered around backend architecture, high-load systems, and real-time data processing. You will be responsible for designing scalable services, managing asynchronous data flows, and ensuring reliable ingestion and processing of IoT device data.

The platform plays a key role in workforce tracking, operational efficiency, and automation of field processes. It processes large volumes of real-time data and applies complex business logic for workforce scheduling and analytics.

This is a backend-focused role with high ownership and impact on system architecture and performance.
 

Benefits

• Opportunity to solve complex architectural and high-load challenges
• Professional growth within a scaling tech company
• High-impact role in a real-world IoT and data-driven product
• Work with modern backend technologies and distributed systems
• Remote-first environment with flexibility and autonomy
   

About the Client

International product company in the Construction Technology domain, focused on automating workforce management processes through IoT and cloud-based solutions.

The product replaces manual time tracking with automated data collection, improves payroll accuracy, and enables real-time tracking of workforce operations and analytics.
 

About the Project

The platform’s core processing system is responsible for IoT data ingestion, real-time processing, and advanced workforce scheduling logic.

The system provides real-time dashboards and analytics for operational decision-making.
 

Location: United States

Duration: long-term
 

Requirements

• 3+ years of commercial experience with PHP in backend development
• Strong expertise in Laravel and its ecosystem in production environments
• Deep knowledge of PostgreSQL, including optimization, indexing, and schema design
• Experience with Laravel Jobs and queue systems (Redis, SQS)
• Solid understanding of RESTful APIs and third-party integrations
• Experience with Eloquent ORM performance tuning and N+1 query prevention
• Familiarity with Docker and containerized development
   

Additional Requirements

• Strong understanding of SOLID principles and clean code practices
• Strong problem-solving skills and attention to detail
• Experience working in Agile/Scrum environments
• Upper-Intermediate (B2+) English level for spoken communication
   

Responsibilities

• Design and implement scalable backend services and APIs
• Architect and evolve backend systems for high-load environments
• Optimize complex database queries to handle large volumes of real-time data
• Build and manage asynchronous processing using queues and background jobs
• Ensure reliable ingestion and processing of IoT-driven data streams
• Conduct code reviews and maintain high standards of code quality
• Refactor legacy components into modern, maintainable service patterns
• Collaborate with product and engineering teams to translate business requirements into technical solutions
   

🇺🇦 Additional Notes

• We consider candidates both in Ukraine and abroad
• For specialists based in Ukraine, we provide the option of official booking (reservation)

We’re Hiring: Customer Support Manager

Our mission: to deliver world-class gaming experiences by providing fast, reliable, and customer-centric support that builds trust, satisfaction, and long-term loyalty. We are looking for a Customer Support Manager to manage our support daily operations and ensure an outstanding experience for every player.

Now we are looking for Customer Support manager, who will cover 3PM-11PM shifts by London time

What You’ll Do:

• Deliver high-quality, timely, and professional assistance across all communication channels, including some of cold, reactivation or  up-sell outbound outreaches (live chat, email, etc.);
• Ensure hitting personal KPIs (list of KPIs) and continuous improvement;
• Participate in developing and optimizing support processes, workflows, and internal knowledge bases to increase efficiency and service quality;
• Handle complex escalations and ensure that critical cases are resolved quickly and in line with company standards;
• Gather and analyze customer feedback and support data to identify trends, pain points, and opportunities for product and service improvements;
• Ensure compliance with regulatory requirements and internal policies in all customer communications.
  
   

What We’re Looking For:

• Proven experience in Customer Support management within the iGaming, gambling, or similar fast-paced digital industries;
• High level of autonomy in resolving customer requests or going through a proper escalation process;
• Deep understanding of customer service KPIs, quality assurance processes, and performance management.
• Data-driven mindset with the ability to identify trends and turn them into improvement suggestions.;
• Excellent communication skills and a customer-first approach, + fast typing and proficient PC / Internet user;
• Ability to manage multiple priorities, adapt quickly to change, and stay solution-oriented under pressure.
  
   

Experience:

• 1+ years of experience in Customer Support. 
• English B2+ level.
  
   

Why You Should Join Us:

• Competitive Compensation: Enjoy a competitive salary and performance-based bonuses.
• Remote Flexibility: Work from anywhere as part of an international and geographically diverse team.
• Professional Growth: We invest in your career development with learning opportunities and clear growth paths.
• Exciting Challenges: Join a fast-growing company at the forefront of the iGaming industry.

Apply now and help us elevate the player experience, build a world-class support function, and make a lasting impact in the iGaming world.

We are a fast-growing product company in the iGaming industry, driven by innovation, creativity, and a passion for delivering exceptional player experiences. Our team brings together talented professionals who embrace challenges, think outside the box, and continuously strive for excellence.
 

As we continue to scale, we are looking for an experienced and visionary Chief Executive Officer (CEO) to lead the next stage of our growth in the US Sweepstakes Casino market.
 

As CEO, you will define the company's long-term vision, shape its strategic direction, and drive sustainable business growth. Working closely with shareholders and senior leadership, you will build a high-performing organization, strengthen operational excellence, and position the company as a market leader in one of the fastest-growing segments of the iGaming industry.
 

This is a unique opportunity for a hands-on executive who combines strategic leadership with strong commercial acumen and a proven ability to scale high-growth digital businesses.

 

Key Responsibilities
 

Business Strategy & Growth:

• Define and execute the company's long-term vision and growth strategy within the US Sweepstakes Casino market.
• Identify new business opportunities, partnerships, and expansion initiatives to drive sustainable revenue growth.
• Monitor market trends, competitive landscape, and emerging opportunities to maintain a strong market position.

Operational Leadership:

• Lead and optimize company operations across Product, Marketing, CRM, VIP, Affiliates, Payments, Customer Support, Compliance, and Technology.
• Build scalable processes and organizational structures that support rapid business growth.
• Ensure alignment between departments around strategic priorities and company objectives.

Commercial & Financial Management:

• Own the company's commercial performance, revenue growth, profitability, and overall P&L.
• Oversee budgeting, forecasting, financial planning, and company-wide KPI management.
• Drive data-informed decision-making and continuously optimize business performance.

Product & Customer Growth:

• Partner closely with Product and CRM teams to improve customer acquisition, player engagement, retention, and lifetime value.
• Support the development of innovative product experiences that strengthen competitive advantage.

Leadership & Culture:

• Build, mentor, and inspire high-performing leadership teams.
• Foster a culture of ownership, accountability, collaboration, and continuous improvement.
• Attract and retain exceptional talent while developing future leaders across the organization.

Governance & Compliance:

• Ensure the company operates in accordance with applicable regulatory and compliance requirements.
• Support market expansion by establishing operational readiness for new jurisdictions and business opportunities.
   

What We're Looking For

Executive Experience:

• Proven executive leadership experience as a CEO, General Manager, Managing Director, or another senior leadership role within iGaming, Sweepstakes Casino, Social Casino, or a high-growth digital product company.
• Demonstrated success in scaling product-led businesses and delivering sustainable revenue growth.

Industry Expertise:

• Deep understanding of the US Sweepstakes Casino ecosystem, including acquisition channels, affiliate marketing, retention strategies, VIP programs, and player lifecycle management.
• Strong knowledge of commercial models, digital marketing, and operational best practices within the iGaming industry.

Business & Financial Acumen:

• Extensive experience managing P&L, financial planning, budgeting, and business performance.
• Strong analytical and commercial mindset with the ability to balance strategic vision and operational execution.
   

Leadership:

• Exceptional leadership, communication, and stakeholder management skills.
• Experience building and leading cross-functional executive teams in fast-paced, high-growth environments.
• Ability to influence, inspire, and align teams around ambitious business objectives.
   

Personal Attributes:

• Entrepreneurial mindset with a hands-on approach to solving business challenges.
• Results-oriented, resilient, and comfortable making high-impact decisions in a dynamic environment.
• Passion for innovation, continuous improvement, and building market-leading products.

We are looking for a Lead DevOps / Observability Engineer to lead the migration of the client's observability stack from New Relic and Datadog to Grafana, using technologies such as Prometheus, Loki, and Tempo.

This is a hands-on role combining:
- DevOps & platform engineering - deploying and configuring the new observability stack using AWS, Kubernetes, and Terraform.
- Application instrumentation - modifying application code to add or adapt metrics, logs, and traces.
- Migration & collaboration - rebuilding existing dashboards and alerts in Grafana and working with multiple engineering teams to ensure full monitoring coverage.

We are looking for someone who is comfortable working across both infrastructure and application code and can independently drive a cross-team observability migration.

Responsibilities:

• Lead the migration of monitoring, alerting, and dashboards from New Relic and Datadog to Grafana.
• Design and implement the target observability architecture (metrics, logs, traces) and the infrastructure-as-code (Terraform) needed to support it.
• Audit existing New Relic and Datadog dashboards, alerts, and integrations to build a complete migration inventory and ensure feature/coverage parity in Grafana.
• Make application-level code changes across services to add, adjust, or replace instrumentation (metrics exporters, logging, tracing libraries) as needed for the new stack.
• Work with AWS infrastructure, including EKS, Kubernetes, and Docker, to deploy and operate the new observability tooling.
• Configure AWS networking and access as needed to support the observability platform (VPCs, security groups, IAM).
• Contribute to CI/CD pipelines and deployment automation using GitHub Actions to support the rollout.
• Collaborate with development, platform, and infrastructure teams to coordinate the cutover from New Relic/Datadog to Grafana with minimal disruption.
• Identify and remediate any security issues (secrets, keys, dependencies) encountered in the course of this work.
• Document the new observability architecture, migration procedures, and dashboard/alert mappings.
• Use AI-assisted development tools, including Codex, to improve engineering productivity and delivery speed.

Requirements: 

• Strong hands-on experience with Grafana, including dashboard design, alerting, and data source configuration (e.g. Prometheus, Loki, Tempo, or similar).
• Practical experience migrating away from commercial observability platforms such as New Relic and/or Datadog.
• Full-stack development experience — comfortable reading, modifying, and instrumenting application code across front-end and back-end services, not just infrastructure.
• Solid experience with AWS in production environments, including EKS and Kubernetes.
• Practical experience with Docker and containerized workloads.
• Strong Terraform and infrastructure-as-code skills.
• Experience with GitHub Actions or comparable CI/CD tools.
• Ability to work across multiple teams, services, and codebases to coordinate a cross-cutting migration.
• Fluency with Codex or comparable AI-assisted coding tools.

Nica to have:

• Prior experience running a similar New Relic/Datadog-to-Grafana (or equivalent) observability migration end to end.
• Grafana-specific certifications or demonstrated community contributions (plugins, dashboards, etc.).
• Experience with the broader Prometheus/Loki/Tempo (LGTM) ecosystem.
• AWS certification, such as AWS Solutions Architect Associate/Professional.
• Experience with RDS and other AWS data services.
• Prior contract or consulting experience with clearly defined deliverables.
• At least an Upper-Intermediate level of English 

Join a growing DevOps community at Sigma Software and build hands-on experience with modern cloud infrastructure, CI/CD pipelines, automation, and Infrastructure as Code. We are looking for a Junior DevOps Engineer eager to develop technical expertise while working alongside experienced professionals on international projects.

You will become part of a top-notch DevOps team of more than 30 specialists collaborating across cloud-native platforms, enterprise systems, and scalable digital products. We as a company support continuous learning, mentoring, certification growth, and transparent career development.

This role is a great opportunity for engineers who want to strengthen their cloud and automation skills in a collaborative environment with access to Senior and Principal-level mentorship.

Requirements

• 1+ years of hands-on experience with at least one public cloud platform: AWS, Azure, or GCP
• Solid understanding of Linux administration and networking fundamentals including TCP/IP, DNS, HTTP/HTTPS, services, packages, and system metrics
• Understanding of CI/CD principles and practical exposure to GitHub Actions, GitLab CI, Azure DevOps, Jenkins, or TeamCity
• Understanding of containerization concepts and practical experience with container images and runtime environments
• Scripting experience using Shell and either Python or PowerShell
• General understanding of Infrastructure as Code and configuration management tools such as Terraform and Ansible
• Understanding of SDLC processes and DevOps principles
• Basic knowledge of databases, monitoring, logging, backup, storage, and security concepts
• Understanding of authentication and authorization concepts, TLS, and secure secrets management
• Experience using AI assistants responsibly while validating outputs and maintaining data security standards
• Good communication and collaboration skills
• At least an Upper-Intermediate level of English

WILL BE A PLUS:

• Experience with Kubernetes or other orchestration platforms
• Hands-on experience with Terraform or Ansible in production environments
• Experience with centralized logging and monitoring tools such as Prometheus, Grafana, ELK Stack, CloudWatch, or Datadog
• Exposure to GitOps practices
• Familiarity with AI/LLM services or vector databases in infrastructure-related scenarios
• Cloud or Linux-related certifications

Personal Profile

• Strong willingness to learn and grow within a professional DevOps environment
• Proactive and ownership-oriented mindset
• Ability to collaborate effectively in cross-functional teams
• Attention to detail and structured approach to operational tasks
• Good analytical and problem-solving skills

Responsibilities

• Set up, configure, test, and maintain infrastructure across development, staging, testing, and production environments
• Contribute to Infrastructure as Code implementation following established modules, conventions, and review processes
• Support CI/CD pipeline configuration, maintenance, release preparation, and deployment activities
• Investigate incidents by collecting logs and monitoring evidence, performing initial triage, and documenting resolutions
• Configure monitoring checks, alerts, and participate in backup and recovery procedures
• Follow security best practices including least-privilege access management and secure secrets handling
• Maintain infrastructure documentation, deployment instructions, architecture diagrams, and operational runbooks
• Collaborate with developers, QA engineers, security specialists, and operations teams
• Continuously improve technical skills through mentoring, certifications, and project participation

Lead Engineer | Node.js, React Native, AI Agents

Location: London / hybrid preferred, or remote from Central & Eastern Europe
Level: Mid-to-Senior, hands-on Lead
Employment: Full-time, permanent

About the company

We are an early-stage UK product company building an AI-powered platform focused on professional relationships and network intelligence.

The product combines a social graph, relationship data and an AI agent that helps users identify relevant people, understand their network and strengthen important connections.

We are looking for a Lead Engineer / Founding Senior Engineer who will own the technical architecture, write production code and help grow the engineering team.

This is a hands-on engineering role, not a pure management position.

Tech stack

• Node.js / TypeScript / Express
• React Native + Expo
• MongoDB Atlas
• Atlas Vector Search + BM25 / hybrid retrieval
• OpenAI / custom LLM tool-calling agents
• AWS EC2, Cognito, S3
• Docker, Nginx
• GitHub Actions / CI/CD

Responsibilities

• Own technical architecture and production infrastructure
• Ship features across backend, mobile and AI agent layers
• Build and improve LLM agents, prompts, tool-calling flows and evaluation
• Mentor engineers and establish strong engineering practices
• Implement privacy-by-design and GDPR requirements
• Build and use synthetic data for development, testing and model evaluation
• Own CI/CD, monitoring, secrets management and incident response
• Own application and infrastructure security
• Secure AI agents against prompt injection, data leakage and unintended tool actions
• Work directly with the Founder on product and architecture decisions

Must-have

• 4+ years of professional software engineering experience
• Strong Node.js / TypeScript backend experience
• Experience owning real production systems
• Comfortable across backend, frontend/mobile and infrastructure
• MongoDB or similar document database experience
• Hands-on experience building LLM agents and prompting systems
• Experience with agent tool usage and evaluation
• Practical GDPR and data privacy knowledge
• Strong security fundamentals
• Understanding of AI-agent risks such as prompt injection, data leakage and unintended actions
• Experience working with synthetic data
• Production deployment, monitoring and incident-response experience
• Previous mentoring or technical leadership experience
• Comfortable with ambiguity and a fast-moving startup environment

Nice-to-have

• React Native / Expo
• RAG / vector search
• AWS Cognito
• Previous Tech Lead, CTO or founding engineer experience
• Application security / pentesting background
• Experience securing LLM / AI-agent applications

Compensation

Competitive salary + equity depending on experience and location.

We are looking for someone interested in a long-term role and growing together with the company, not a freelance or short-term contract position.

We are looking for a strong Backend Developer for a high-load project connected with Android infrastructure, reverse engineering, network traffic analysis, and processing large amounts of data.

The main backend is built on Node.js, so strong knowledge of JavaScript and TypeScript is required.

Responsibilities

• Develop and maintain backend services using Node.js / TypeScript.
• Work with high-load and distributed systems.
• Design systems for storing and processing large amounts of data.
• Work with PostgreSQL, ClickHouse, and Redis.
• Optimize database queries, indexes, and data structure.
• Work with:
  • replication;
  • sharding;
  • partitioning;
  • distributed data;
  • high availability;
  • fault tolerance.
• Work with Kubernetes infrastructure.
• Find and fix performance problems in backend, databases, and infrastructure.
• Analyze network traffic and application communication.
• Work with traffic sniffing and proxy tools.
• Understand how mobile applications communicate with backend services and APIs.
• Analyze requests, responses, headers, payloads, tokens, and sessions.
• Work with existing code and systems with limited documentation.
• Find technical problems and propose solutions independently.
• Work with distributed workers, services, and nodes.

Required Skills

Backend

• Strong experience with Node.js.
• Strong knowledge of JavaScript.
• Strong knowledge of TypeScript.
• Good understanding of async programming.
• Understanding of Node.js event loop.
• Experience with REST API and WebSocket.
• Experience with high-load backend systems.

Databases

• Strong experience with PostgreSQL.
• Strong experience with ClickHouse.
• Strong experience with Redis.
• Good understanding of:
  • indexes;
  • query optimization;
  • query plans;
  • replication;
  • sharding;
  • partitioning;
  • distributed databases;
  • data consistency;
  • high availability.

Experience with large databases and high traffic is very important.

Infrastructure

• Kubernetes.
• Docker.
• Linux.
• Experience with cluster systems.
• Understanding of networking.
• Understanding of load balancing.
• Understanding of horizontal scaling.
• Ability to find CPU, RAM, disk, and network bottlenecks.
• Experience with logs and monitoring.

Reverse Engineering / Network Analysis

• Understanding of Android reverse engineering.
• Understanding of Android architecture.
• Experience with traffic sniffing.
• Good understanding of HTTP / HTTPS.
• Understanding of TLS.
• Experience with proxy-based traffic analysis.
• Understanding of authentication, sessions, cookies, and tokens.

Important

We are not looking for a developer who only has experience with simple CRUD applications.

The candidate should understand the full system:

application → network → backend → databases → infrastructure

The developer should be able to work independently, research technical problems, understand existing systems, and find solutions even when documentation is limited.

Level

Strong Middle / Senior Backend Developer

Experience in these areas will be a plus:

• high-load systems;
• distributed systems;
• reverse engineering;
• network traffic analysis;
• large-scale data processing;
• complex or undocumented APIs;
• systems with many workers and nodes.