Jobs at Djinni

N.B.! Location: remote from Latvia/Lithuania; 

JD:

In a partnership with a global consulting company, we are searching for a UX/UI Designer. As Senior UX Designer you will closely work with Product Owners to define and develop deep insights, service concepts, blueprints, and feature hypothesis to improve customer digital journey, decrease attrition, define strategic business directions, and increase conversion.

Requirements:

Minimum experience of 5 years as a UX Designer. Extensive knowledge and experience working with stakeholders. Expert level in producing Design Systems and low fidelity to high fidelity prototypes using Figma.

Responsibilities:

Collaborate and carry out work sessions with members of the design team, technology, analytics, stakeholders and third parties. Identify usability problems and propose solutions that add value and help optimise conversions. Conduct, analyse and synthesise research findings (qualitative/quantitative) into actionable insights and recommendations. Communicate and present concepts through storytelling skills, including board presentations.

Primary skills:

User Experience (UX)

Design

Figma is essential

Secondary skills:

User Experience Research Tools and Techniques

Customer Experience

Design

User Interface (UI)

Design Usability design

We are looking for a Middle Machine Learning Engineer to develop and enhance AI-driven solutions within the Palantir Foundry and AIP ecosystem.

In this role, you will focus on building and iterating on machine learning and LLM-based solutions, integrating them into Foundry workflows to support analytics, automation, and decision-making. You will collaborate closely with data engineers, business analysts, and domain experts to deliver practical, production-ready AI solutions.

Key Responsibilities:

• Develop and enhance machine learning and AI models to support predictive analytics, classification, forecasting, and AI-assisted workflows.
• Build AI and ML solutions within Palantir Foundry, using Python and existing Foundry pipelines, Ontology objects, and workflows.
• Apply LLMs and NLP techniques (e.g. prompt engineering, fine-tuning, embeddings, retrieval-augmented workflows) using Palantir AIP for enterprise use cases.
• Collaborate with data engineers to understand data sources, ensure data quality, and prepare datasets for model training and inference.
• Conduct experiments, evaluate model performance, and iterate on features and model approaches.
• Integrate AI models into Foundry workflows to surface insights and support business processes.
• Support model deployment and monitoring by following established team standards and best practices.
• Work closely with business and domain stakeholders to translate requirements into practical AI-driven solutions.
• Document model behavior, assumptions, and limitations to support transparency and compliance.
• Stay up to date with applied AI and GenAI trends and contribute ideas under guidance from senior team members.

Requirements:

• 3+ years of experience in machine learning, AI engineering, or applied data science.
• Strong Python skills; experience with ML libraries such as scikit-learn, XGBoost, TensorFlow, or PyTorch.
• Hands-on experience with LLMs, NLP, or GenAI use cases (e.g. prompt design, embeddings, text classification, summarization).
• Practical understanding of the ML lifecycle: data preparation, feature engineering, model training, evaluation, and iteration.
• Experience working with structured data (tabular, time series); exposure to text or unstructured data is a plus.
• Familiarity with enterprise data environments and collaborative development workflows.
• Ability to clearly explain model results and AI behavior to non-technical stakeholders.
• Upper-Intermediate English or higher.

Nice to have: 

• Proficiency in Foundry Ontology, Object Builders, and Code Repositories.
• Experience in big pharma or highly regulated industries.
• Knowledge of data privacy, compliance, and security best practices in AI applications.
• Familiarity with cloud platforms (AWS, GCP, or Azure) and containerization (Docker, Kubernetes).

Our client, an award-winning global tax services and software provider, is the largest Firm in the world dedicated exclusively to business taxes. With global headquarters in Dallas, Texas, the Firm provides an integrated suite of federal, state, local, and international tax services on a multijurisdictional basis, including tax recovery, consulting, advocacy, compliance, and technology services. Our client is a seven-time recipient of the International Service Excellence Award from the Customer Service Institute of America (CSIA) for its commitment to world-class client service.

About the project:
The project is dedicated to the Sales Tax area: building a SaaS solution that helps clients track and forecast their performance.

Duties and responsibilities:
• Build and maintain a cloud-based infrastructure solution in Azure
• Deploy infrastructure as code
• Building fully automated CIСD pipelines for SaaS applications on the MS Azure platform
• Monitoring, reporting, graphing, and alerting across all infrastructure services
• Build and deploy Docker containers in an orchestrated environment
• Detect and monitor security issues
• Monitor and measure systems for performance, load & capacity planning
• Ensure that Day to Day support and maintenance of these systems is managed within best practice guidelines, which include dealing with escalations as well as communications and stakeholder management

Requirements:
• 4+ years of DevOps experience
• Commercial work experience with Azure Cloud and Azure DevOps
• Decent experience in Linux/Windows Server administration
• Well-versed in TCP/IP, HTTP, and complex cloud network and security topologies
• Good knowledge of Azure stack (AKS, VMs, Blob, VNet, SQL Databases, CDN, DNS, Azure DevOps, etc.)
• Hands-on experience with building and maintaining CI/CD pipelines with Git in Azure DevOps, Kubernetes, Helm, Docker, and Terraform
• Deep knowledge of Kubernetes (AKS)
• Hands-on experience with Terraform
• Experience setting up monitoring tools (Application Insights, Datadog)
• Basic scripting and automating skills (PowerShell, bash)
• Upper-intermediate level of English (both verbal and written)
• Deep understanding of DevOps principles

Nice to have:
• Understanding of Secure Software Development
• Experience working with Cloud Adoption Framework (CAF)
• Experience with SQL (Azure SQL Database, MySQL, PostgreSQL) and NoSQL databases (Cosmos DB, Mongo DB)

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

AdTribe is a performance marketing agency with 7 years of expertise in scaling e-commerce brands in the USA market. We help our clients grow through Facebook (Meta), Google, TikTok, and other advertising platforms. Now, we're looking for an experienced Media Buyer to join our team and work with clients from the USA, UK, Australia, and other Tier-1 markets.
 

What You’ll Do:

• Launch, Manage, and Optimize advertising campaigns for clients, focusing on Facebook (Meta) 
• Strategic Consulting: Provide data-driven recommendations to improve conversion rates, AOV, LTV, and other key business metrics.
• Client Communication: Engage directly with clients via Slack, ensuring clear, timely, and effective communication.
• Reporting: Prepare detailed performance reports  
• Creative Strategy: Offer creative insights and recommendations to enhance ad performance, create briefs for designers and content creators.
   

What We’re Looking For:

• 1+ year of experience managing successful ad campaigns on Facebook platforms.
• Understanding of eCommerce and Lead Generation projects.
• Upper-Intermediate English proficiency with the ability to clearly articulate ideas.
   

Nice-to-Haves:

• Experience working with US-based clients.
• Background in a performance marketing agency.
• Basic design skills with tools like Canva or similar.
• Experience with AI tools to enhance marketing processes.
• Proficiency in GA4 for reporting and analytics.
   

What You’ll Get in Return:

• Work with Tier-1 market clients.
• Fully remote position with flexible hours—work from anywhere.
• 24 paid vacation days per year + paid sick leave.
• Mentorship from experts with 5+ years of experience in international markets.
• Access to a corporate library of courses and fully funded professional training.
• Compensation for hobbies, sports activities, therapy sessions, and coworking spaces.
• Coverage for language courses (e.g., English) and marketing-related education.

BitHide is an enterprise-grade crypto wallet for businesses worldwide, created in response to market needs. Around 10 years, we’ve been building secure, scalable, and privacy-focused crypto payment infrastructure, operating in 5 countries with a global team.

If you’re not just a “researcher,” but a specialist who sees patterns where others see only noise — you’re exactly who BitHide is looking for.
If you enjoy diving deep into data, automating search processes, and supporting strategic decisions for product, marketing, and sales — let’s talk.

What you will do
• Collect and structure data in the Crypto / Web3 / FinTech sectors
• Use tools and open sources for in-depth research
• Automate contact search on LinkedIn and launch email campaigns
• Conduct competitive intelligence and analyze market niches
• Build and refine ICPs — ideal customer profiles
• Set up research tools from scratch — from selection to integration
• Prepare reports that influence business decisions
• Work with BI systems, SQL, and Google Sheets for analytics
• Collaborate with sales, marketing, and product teams

What is important for us
• 3+ years of experience in Data / Lead Research in B2B
• Practical experience in crypto, Web3, or FinTech projects
• Experience working with OSINT, open databases, and competitive analysis
• Implemented ICPs with measurable results
• Experience in automating contact search and email outreach
• Ability to launch research tools “from scratch”
• Knowledge of BI, SQL, Google Sheets / Excel
• Understanding of GDPR and ethical data processing
• Analytical mindset, attention to detail, and results orientation

     Why BitHide

• Join a global FinTech product that’s truly reshaping the market landscape
• Work with smart minds on complex challenges — we’re not “playing startup,” we’re building the infrastructure of the future
• Be part of a team free from toxicity — only open dialogue, mutual respect, and real professionalism
• Receive fair compensation — clear structure, results-driven rewards, and flexible reviews
• Grow with us — clear goals, transparent career paths, no unnecessary bureaucracy
• Enjoy support — English classes, continuous learning, gym benefits, and family bonuses
• Key specialists get relocation support to Cyprus
• Instant review of your CV — because time matters

Smart people. Big challenges. A business that builds the industry.

PwC is a global network of more than 370,000 professionals in 149 countries that turns challenges into opportunities. We create innovative solutions in audit, consulting, tax and technology, combining knowledge from all over the world.

PwC SDC Lviv, opened in 2018, is part of this global space. It is a place where technology is combined with team spirit, and ambitious ideas find their embodiment in real projects for Central and Eastern Europe.

What do we guarantee?

• Work format: Remote or in a comfortable office in Lviv - you choose.
• Development: Personal development plan, mentoring, English and Polish language courses.
• Stability: Official employment from day one, annual review of salary and career prospects.
• Corporate culture: Events that unite the team and a space where everyone can be themselves.

As an AI Product Owner, you will drive the discovery and delivery of AI‑powered solutions across our core business processes. This role focuses on business value realization: optimizing processes, reducing manual work, improving decision‑making using AI.

Main Responsibilities:

• Analyze business processes and identify areas where AI can deliver measurable impact (time/cost savings, error reduction, quality improvement).
• Collect and formalize requirements for AI solutions together with business stakeholders and tech teams.
• Design solution architecture and integration patterns.
• Prepare cost/benefit and ROI analysis: development, infrastructure, licenses, LLM tokens, and ongoing maintenance.
• Communicate with stakeholders: present concepts, PoC/MVP results, and regular status updates.
• Coordinate with security and other relevant teams to ensure compliant use of AI solutions.

• Manage AI development efforts: coordinate and prioritise work for AI/ML/LLM engineers, provide clear goals and acceptance criteria, review deliverables and ensure timely, high‑quality delivery of AI features.

   

Key Requirements:

• 3+ years of experience as Product Owner / Product Manager / Solution Owner (or similar).
• Hands‑on experience with AI/ML or LLM‑based projects 
• Experience working with cloud platforms and APIs.
• Experience in collecting requirements and translating business needs into tasks for technical teams.
• Ability to explain AI limitations and risks to non‑technical stakeholders.
• Experience coordinating or managing technical teams 

• Written and spoken English at B2 level.

   

Policy statements:
https://www.pwc.com/ua/uk/about/privacy.html

Junior Customer Support Representative (Entry-Level)

We are looking for a motivated and detail-oriented Junior Customer Support Representative to join our team. This is an excellent opportunity for final-year students or individuals at the beginning of their career path. Previous experience in customer support is a plus, but not required — we provide training and support to help you succeed.

In this role, you will assist English-speaking clients by responding to their inquiries, resolving issues, and ensuring a positive customer experience.

Responsibilities:

• Communicate with customers in a professional and timely manner, identifying their needs and providing helpful responses
• Assist in resolving product or service-related issues by following clear processes and using internal tools
• Work with client data to provide accurate answers and helpful suggestions
• Handle client concerns with empathy and professionalism
• Collaborate with teammates to achieve common goals and ensure smooth service delivery
• Maintain high quality and accuracy in handling customer requests and updates

Nice to have:

• Any previous experience in customer service or support roles
• Interest in fintech products or services

Requirements:

• B2 level proficiency in written and spoken English
• Basic computer literacy and ability to learn digital tools quickly
• Strong communication and problem-solving skills
• Attention to detail and good time management
• Reliable internet connection suitable for remote work

We offer:

• Compensation for private entrepreneur tax expenses in Ukraine
• Support with setting up and maintaining private entrepreneur status
• 10 paid sick leave days per year
• 160 paid vacation hours per year
• Medical insurance after the probation period
• Reimbursement for professional courses and language learning
• Compensation for gym membership or sports equipment

Join JustMarkets — a Global CFD Broker — as a Customer Support Specialist, while working closely with our clients to ensure they receive the right products and will have an opportunity to deep dive in the world of investment.

If you want a fast-growing industry, flexible work, and a role where you actually learn — this is it.
Good English, clear communication, and curiosity matter most.

Work from anywhere. Grow with a supportive team. Stay close to investment trends (even if you’re new to them).

What you’ll do

• Support English-speaking customers via chats, emails and callbacks 
• Explain things in a clear and friendly way
• Solve issues using well-documented processes (and team support)
• Keep customer info updated and accurate
• Suggest improvements when you see ways to make things smoother

You’ll be a good fit if

• You have at least some experience in customer-facing roles (support, retail, hospitality, volunteering, tutoring — anything involving communication)
• Your English is around B2 or higher
• You value empathy, patience, and clear communication
• You learn quickly and like understanding how things work
• You’re reliable, organized, and attentive to detail

Nice to have

• Interest in fintech or digital products
• Experience with CRM or ticketing tools

What we offer

• A friendly and supportive team culture
• Structured onboarding and mentoring
• Real growth opportunities
• Medical insurance after probation
• Compensation for courses and language learning
• Gym membership or sports equipment reimbursement
• Paid 10 sick leave shifts and 160 paid vacation hours per year
• Full support with private entrepreneur setup and tax compensation
   

An international engineering company is looking for a Business Development Manager to drive B2B sales across Europe.

Responsibilities:

• Proactively acquire new clients through phone outreach (minimum 30 calls/day).
• Sell the company’s engineering and installation services to new and existing clients.
• Prepare commercial proposals and related documentation.
• Build and maintain long-term client relationships.
• Meet sales targets and KPIs.
• Maintain reports and work effectively in a CRM system.

Requirements:

• At least 2 years of experience in B2B sales, preferably with long sales cycles (3–6 months).
• Fluent in English and French (C1+ spoken and written).
• Strong organizational and time-management skills.
• Ability to establish contacts quickly and build positive relationships.
• Experience working with CRM systems.

What We Offer:

• Fully remote work.
• Comprehensive onboarding and product training.
• Work in an international environment.
• Fixed salary + attractive sales commission.
• Opportunity to influence your income and career growth.

Send your CV – we’ll be sure to get in touch!

S-PRO, a top-tier Digital Innovation and Software Engineering company. We specialize in providing cutting-edge services for fast-growing businesses and enterprises, with a strong focus on Finance, Renewable Energy and Healthcare domains and expertise in AI, Blockchain and Data Science. Our team of over 200 dedicated professionals works tirelessly across our global offices to develop innovative digital solutions that drive sustainable business value and increase our client’s competitiveness in a dynamic digital landscape.

Project description: We are seeking a Senior Backend Developer who combines strong technical expertise with sharp business understanding and leadership potential. The ideal candidate is not only an excellent Python/Django developer, but also a fast learner who can quickly grasp complex business domains, such as mortgage and financial workflows, and translate them into robust, scalable software solutions. This role is perfect for someone who thrives in dynamic environments, communicates effectively across teams, and takes ownership of projects from concept to delivery.

Key Responsibilities:

• Lead technical delivery by collaborating with product managers and business stakeholders, converting business goals into detailed, executable backend solutions;
• Design and implement scalable backend systems and APIs using Python and Django;
• Architect and maintain PostgreSQL data models, including schema design and migrations;
• Build and optimize ETL processes and workflows to support financial operations;
• Ensure data quality and compliance standards are met in all integrations and system interactions;
• Participate in sprint ceremonies, architectural planning, and technical discussions;
• Monitor system performance, identify bottlenecks, and implement optimizations.

Requirements:

• 5+ years of hands-on backend development experience with Python and Django;
• Strong experience designing and delivering APIs in production systems;
• Solid understanding of PostgreSQL (schema design, migrations, optimization);
• Proven experience with ETL processes, data workflows, and integration of external systems;
• Strong knowledge of object-oriented programming and software design principles;
• Familiarity with Agile/Scrum methodologies and iterative delivery;
• Ability to work independently while also mentoring and supporting other developers;
• Excellent communication and problem-solving skills, with the ability to quickly grasp complex business domains.

Nice to Have:

• Experience working in the financial services domain;

• Experience with Loan Origination System (LOS), specifically ICE Mortgage Technology Encompass.

  
  
  What we offer:

   

• Long team focus: we create an environment of transparent communication, and minimal bureaucracy, which leads to long-term relationships.
• Development of niche expertise: we are working in several niches, such as FinTech, healthcare, and logistics. Therefore, our employees can develop their own expertise in these domains.
• Continuous learning: we create employee development plans / personal roadmaps /quick promotion processes.
• Internal career development: 80% of our current executives were promoted to those positions within S-PRO. We encourage initiative. If a person wants to set new challenges and grow, we will definitely support them.
  
  Benefits and perks:
• Flexible schedule.
• Remote work model.
• Paid vacations.
• Paid sick leaves.

Hi, I’m Alex, CEO at Paxle — an international group of ADTech companies. We work in Performance Marketing with dating, sweepstakes, and gambling and have diverse projects.

Our GRANTORO project connects advertisers and traffic sources worldwide, building partnerships that thrive. To continue our growth, I’m actively seeking a talented and experienced Account Manager to join our dynamic team.

This is a cool opportunity to implement ideas that will give you the best experience. I am waiting for your resume :)

Requirements:

• Proven experience as an Account / Advertising Manager or strong theoretical knowledge of affiliate marketing principles with practical training / internship experience;
• 0,5+ year experience in dating or sweepstakes projects or solid understanding of these verticals and their specifics;
• Good understanding of the main performance metrics (CPA, CTR, CPL, CPV, CPC, RevShare, ROI, LTV);
• Basic understanding of traffic sources such as Push, Popunder, Native Ads, Facebook Ads, and Google Ads;
• Understanding of the market, key advertisers, and major affiliate programs;
• Strong negotiation and persuasion skills;
• Professional communication skills and ability to build long-term relationships with advertisers;
• Strong self-management skills and a structured approach to work;
• Ambition and continuous desire for professional growth;
• Upper-Intermediate level of English.

Responsibility:

• Advertiser relationship management: build and maintain strong, trust-based relationships with existing advertisers, finding new partners, ensuring long-term cooperation.
• Communication & Support: Provide ongoing support, professional guidance, and feedback to advertisers.
• Campaign Optimization: Monitor, analyze, and optimize campaigns, including conversion points of creative materials.
• Market Research: Stay updated on industry trends and analyze new opportunities for business growth.
• Offer & Partner Acquisition (as needed): Search for new partners or offers upon request.
• Performance Tracking: Meet and exceed personal commercial KPIs.

Work Conditions:

• Remote work in Ukraine or from abroad;

• Medical insurance;

• Over 30 days off throughout the year (20 working days of vacation + public holidays) and 10 sick days;

• Corporate English courses;

• A MacBook for convenient work;

• Salary linked to the current exchange rate;

• Reasonable and loyal management;

• Team-building activities, knowledge sharing, and many interesting initiatives within and outside the holding company.

We are looking for a senior AWS backend engineer for a focused MVP delivery engagement. The app and
backend exist and are functional. The core problem is in the Lambda orchestration layer: Lambda invocations block synchronously waiting for SageMaker, there is no async job ID pattern, no queue, and no retry logic - causing timeouts at ~4 concurrent users. Your primary job is to fix this. In parallel, you will work on security hardening, observability, IaC, and cost hygiene. SageMaker knowledge is useful context but the real expertise needed is Lambda architecture and AWS async patterns.

Project Context
The platform is a video-based AI analysis product. Users submit videos through a mobile app; the backend processes them through a machine learning inference pipeline (SageMaker) and returns structured PDF
reports. The app and backend are fully in place and functional - this is not a greenfield build. The immediate problem is in the Lambda orchestration layer. Currently, Lambda invocations block synchronously while waiting for SageMaker to complete inference. There is no job ID pattern, no queue, and no retry logic. This causes Lambda timeouts at ~4 concurrent users, making the app unusable under any real load. Importantly, SageMaker itself is working well and handles concurrency and scaling correctly - the bottleneck is entirely upstream of it.
The first task is an architecture review to validate whether the current Lambda + SageMaker structure can be fixed in place, or whether it needs to be restructured. Everything else follows from that assessment. In parallel, security hardening (protection layers) runs as an independent workstream from day one.
 

What You Will Work On
1 · Security Hardening (P0 - runs in parallel from day one)
● Enforce server-side encryption (SSE-KMS) on all S3 buckets; verify HTTPS/TLS across the full
request path
● Conduct a full IAM least-privilege audit across Lambda, SageMaker, S3, and DynamoDB roles
● Validate and harden the API Gateway custom authoriser (ApiKeyValidator + Secrets Manager);
ensure key rotation
● Enable AWS WAF on API Gateway with rate limiting and common threat mitigations
● Enable CloudTrail (12-month retention) and GuardDuty for audit trails and threat detection
● Implement GDPR controls: right-to-erasure scripts, user data tagging, DynamoDB TTL, and S3
object expiration
● Audit GitHub repositories for exposed secrets; enforce 2FA and secret scanning
● Verify all resources are deployed in the designated EU region; add guardrails to prevent drift
2 · Concurrency & Async Architecture (P0 - critical path)
● Architecture review first: assess whether the existing Lambda + SageMaker structure is
salvageable or needs restructuring before writing a single line of fix code
● Implement the correct async job submission pattern in Lambda: accept request, persist job ID, return
ID to caller immediately, terminate Lambda invocation, let SageMaker process in background
○ This eliminates Lambda timeouts entirely - SageMaker already handles concurrency and scaling
correctly
○ Evaluate whether an SQS queue between Lambda and SageMaker is warranted, or if the job ID
pattern alone is sufficient for MVP
● Add retry logic, idempotency checks, and request deduplication to prevent duplicate job submissions
● Ensure job status is trackable: client polls or receives a webhook/SNS notification on completion or
failure
● Implement parallel processing for multi-video jobs (Lambda fan-out per video/model rather than
sequential calls)
● Right-size Lambda memory and timeout settings now that invocations are non-blocking and
short-lived
● Validate the fix under load: run concurrent user tests to confirm the ~4-user ceiling is resolved
3 · Infrastructure Hygiene & IaC (P0/P1)
● Migrate the manually provisioned stack to Terraform (or CDK): API Gateway, Lambdas, S3,
DynamoDB, SageMaker, IAM, CloudWatch
● Set up isolated dev/staging and production environments; parameterise all environment-specific
values

● Apply consistent naming conventions and resource tagging (Project, Environment, Owner,
ContainsPII)
● Add input validation at the API layer for all metadata fields (licence plate, VIN, video count)
● Ensure atomic metadata creation in DynamoDB with proper status tracking (Pending → Processing
→ Done / Error)
● Implement DLQ handling for async failures; add orphan-data cleanup Lambda for stale S3 objects
● Configure S3 lifecycle rules and DynamoDB TTL for data minimisation and GDPR compliance
● Decommission unused resources (old test Lambdas, inactive MediaConvert integration, etc.)
4 · Observability & Alerting (P0/P1)
● Enforce structured logging with correlation IDs (job ID, user ID) across all Lambda functions and
SageMaker containers
● Build a CloudWatch dashboard: upload throughput, Lambda duration/errors, SageMaker latency,
SQS depth, DynamoDB capacity
● Configure CloudWatch Alarms for Lambda error counts, API Gateway 5XXs, SageMaker queue
depth, and concurrency exhaustion
● Enable AWS X-Ray for end-to-end distributed tracing across API Gateway and Lambda
● Enable S3 access logging and API Gateway access logs for security auditing
● Implement a synthetic canary Lambda that runs a scheduled round-trip test and alerts on failure
● Set up DLQs for all async integrations to prevent silent job drops
5 · Cost Optimisation (P1/P2)
● Configure S3 lifecycle transitions/deletion for processed videos (e.g., 7-day retention) and long-term
reports
● Review and right-size Lambda memory/timeout settings across all functions
● Ensure SageMaker endpoints scale to zero when idle (Serverless or autoscaling to 0)
● Set AWS Budget alerts and identify spend outliers via Cost Explorer
● Identify and release idle resources (unattached EBS volumes, dev instances, always-on services)
Required Skills & Experience
Must-Have
● 4+ years of hands-on AWS engineering experience in production environments
○ Deep expertise in: Lambda, API Gateway, SageMaker (async inference), S3, DynamoDB, SQS, IAM,
CloudWatch
○ Demonstrated experience debugging Lambda concurrency, timeout, and async invocation issues
● Infrastructure as Code - Terraform or AWS CDK (not just CloudFormation console)
○ Ability to import and codify existing manually provisioned resources
● Security engineering on AWS
○ IAM policy auditing, KMS, WAF, CloudTrail, GuardDuty, Secrets Manager
○ Familiarity with GDPR data residency, encryption-at-rest, and right-to-erasure requirements
● Python - production-quality Lambda function development; familiarity with FastAPI a plus
● Observability tooling - CloudWatch Alarms, Dashboards, X-Ray, structured JSON logging
● CI/CD pipelines - GitHub Actions to ECR to SageMaker model deployment
● Ability to work independently on a scoped task list with clear P0/P1/P2 prioritisation

Nice-to-Have
● Experience with SageMaker Serverless Inference or Step Functions for orchestration
● Familiarity with ML inference containers (Docker, ECR, model artefact management)
● Experience with AWS Elemental MediaConvert or video processing pipelines

● Exposure to AWS Savings Plans, Reserved Instances, or FinOps practices
● Prior work on GDPR-compliant SaaS platforms

Ideal Candidate Profile
You are a hands-on AWS backend engineer who immediately recognises the Lambda timeout pattern
described above and knows exactly how to fix it. You understand async distributed systems from first principles - job ID patterns, SQS decoupling, idempotency, retry logic, DLQs - and can tell the difference
between a Lambda architecture problem and a SageMaker problem without needing to be told. You start every engagement with an architecture review before writing code, and you can accurately scope
whether a fix is a config change (SSE-KMS, WAF rule) or a genuine rework (Lambda invocation pattern, IaC migration). You communicate clearly on what you find, especially when the answer is 'we need to
restructure this before fixing it.' You treat security and observability as parallel workstreams, not things to address after the main work is
done


 

Are you passionate about building large-scale cloud data infrastructure that makes a real difference? We are looking for a Senior Data Engineer to join our team and work on an impactful healthcare technology project. This role offers a remote work format with the flexibility to collaborate across international teams.

At Sigma Software, we deliver innovative IT solutions to global clients in multiple industries, and we take pride in projects that improve lives. Joining us means working with cutting-edge technologies, contributing to meaningful initiatives, and growing in a supportive environment.

CUSTOMER
Our client is a leading medical technology company. Its portfolio of products, services, and solutions is at the center of clinical decision-making and treatment pathways. Patient-centered innovation has always been, and will always be, at the core of the company. The client is committed to improving patient outcomes and experiences, regardless of where patients live or what they face. The Customer is innovating sustainably to provide healthcare for everyone, everywhere. 

PROJECT
The project focuses on building and maintaining large-scale cloud-based data infrastructure for healthcare applications. It involves designing efficient data pipelines, creating self-service tools, and implementing microservices to simplify complex processes. The work will directly impact how healthcare providers access, process, and analyze critical medical data, ultimately improving patient care.

Responsibilities:

• Collaborate with the Product Owner and team leads to define and design efficient pipelines and data schemas
• Build and maintain infrastructure using Terraform for cloud platforms
• Design and implement large-scale cloud data infrastructure, self-service tooling, and microservices
• Work with large datasets to optimize performance and ensure seamless data integration
• Develop and maintain squad-specific data architectures and pipelines following ETL and Data Lake principles
• Discover, analyze, and organize disparate data sources into clean, understandable schemas

Requirements:

• Possibility to meet clients annually in Europe
• Hands-on experience with cloud computing services in data and analytics
• Experience with data modeling, reporting tools, data governance, and data warehousing
• Proficiency in Python and PySpark for distributed data processing
• Experience with Azure, Snowflake, and Databricks
• Experience with Docker and Kubernetes
• Knowledge of infrastructure as code (Terraform)
• Advanced SQL skills and familiarity with big data databases such as Snowflake, Redshift, etc.
• Experience with stream processing technologies such as Kafka, Spark Structured Streaming
• At least an Upper-Intermediate level of English 

Чи захоплюєтесь ви створенням масштабної хмарної інфраструктури даних, яка має реальний вплив? Ми шукаємо Senior Data Engineer, який приєднається до нашої команди та працюватиме над важливим проєктом у сфері медичних технологій. Ця роль передбачає віддалений формат роботи з можливістю співпрацювати з міжнародними командами.

У Sigma Software ми створюємо інноваційні ІТ-рішення для глобальних клієнтів у різних галузях і пишаємося проєктами, які покращують життя людей. Приєднавшись до нас, ви працюватимете з передовими технологіями, робитимете внесок у значущі ініціативи та розвиватиметеся в підтримуючому середовищі.

Клієнт:
Наш клієнт — провідна компанія у сфері медичних технологій. Її портфель продуктів, сервісів та рішень знаходиться в центрі процесів клінічного прийняття рішень і побудови шляхів лікування. Інновації, орієнтовані на пацієнтів, завжди були і залишаються основою діяльності компанії. Клієнт прагне покращувати результати лікування та досвід пацієнтів незалежно від того, де вони живуть і з якими викликами стикаються. Компанія інноваційно розвивається, щоб забезпечити доступ до медицини для кожного, всюди.

Проєкт:
Проєкт зосереджений на створенні та підтримці масштабної хмарної інфраструктури даних для медичних застосунків. Він включає проєктування ефективних data pipelines, створення self-service інструментів та реалізацію мікросервісів для спрощення складних процесів. Робота безпосередньо впливатиме на те, як медичні установи отримують доступ до критично важливих медичних даних, обробляють їх та аналізують, що зрештою покращує якість медичної допомоги пацієнтам.

 

Обов'язки: 

• Співпрацювати з Product Owner та технічними лідами для визначення та проєктування ефективних pipelines і схем даних
• Будувати та підтримувати інфраструктуру для хмарних платформ за допомогою Terraform
• Проєктувати та впроваджувати масштабну хмарну інфраструктуру даних, self-service інструменти та мікросервіси
• Працювати з великими наборами даних для оптимізації продуктивності та забезпечення безперебійної інтеграції даних
• Розробляти та підтримувати архітектури даних і pipelines для команди відповідно до принципів ETL та Data Lake
• Виявляти, аналізувати та впорядковувати різнорідні джерела даних у зрозумілі та чисті схеми

Вимоги:

• Можливість раз на рік зустрічатися з клієнтами в Європі
• Практичний досвід роботи з хмарними сервісами для даних та аналітики
• Досвід data modeling, reporting tools, data governance та data warehousing
• Впевнене володіння Python і PySpark для розподіленої обробки даних
• Досвід роботи з Azure, Snowflake та Databricks
• Досвід роботи з Docker та Kubernetes
• Знання infrastructure as code (Terraform)
• Просунуті навички SQL та знайомство з big data базами даних, такими як Snowflake, Redshift тощо
• Досвід роботи зі stream processing технологіями, такими як Kafka, Spark Structured Streaming
• Рівень англійської не нижче Upper-Intermediate

We are a consulting company operating in the finance and cryptocurrency sector. We have an open remote position for a Customer Support Managers: English language. 

Job Details:
 

Location: The candidate must be located in Ukraine, as the company provides work equipment (laptop and headset).

Employment Type: Unofficial employment (Temporary) 
Working Hours: Monday to Friday, 9 hours per day.
(Including a lunch break and two 15-minute breaks)

Responsibilities: Provide oral and written consultations to clients regarding any questions related to the company's operations. There are no outbound calls or sales involved; the line is exclusively for incoming calls.

Salary: paid to a cryptocurrency wallet. If you have not used this method before, we will guide you through the process.
For more details, we can discuss via phone call or online interview.

Requirements 

Experience 

• 5+ years of software development experience
• Strong expertise in Golang and building production-grade backend systems. 

Architecture & Systems 

• Solid understanding of microservices and distributed systems (concurrency, messaging, event-driven design). 
• Proven experience designing and supporting high-load systems. 

Cloud & Databases 

• Hands-on experience with AWS (EC2, S3, RDS, Lambda, API Gateway). 
• Advanced PostgreSQL skills, including query optimization, indexing, and replication. 

Containers & DevOps 

• Strong experience with Docker and Kubernetes. 
• Understanding of CI/CD pipelines and Infrastructure as Code concepts. 

Leadership & Soft Skills  

• Excellent communication and collaboration skills. 
• English: Upper-Intermediate or higher. 
• Proactive, ownership-driven, and results-oriented mindset. 

Nice to Have 

• Experience with high-traffic or mission-critical systems. 
• Knowledge of Redis, Kafka, RabbitMQ, MongoDB, or similar technologies. 
• Experience with Terraform or CloudFormation. 
• Background in healthcare or pharmaceutical software. 
• Familiarity with security standards and compliance (GDPR, HIPAA). 

Responsibilities: 

• Design & Develop: Build robust backend services and RESTful APIs in Golang to power our cloud-based CRM system, ensuring high performance and scalability. 
• Microservices Architecture:Implement and maintain an event-driven microservices architecture, including inter-service communication and data pipelines. 
• Database & Optimization: Work extensively with PostgreSQL(complex queries, indexing, performance tuning) to handle large volumes of data efficiently. 
• DevOps Collaboration:Collaborate with DevOps engineers to deploy and operate services using Docker, Kubernetes, Terraform, and AWS (EC2, S3, RDS, Lambda, etc.), following CI/CD best practices. 
• Code Quality:Ensure high code quality by writing unit/integration tests and participating in code reviews, following best practices for maintainability and security. 
• Team Collaboration:Work closely with front-end developers, QA, and product managers in an Agile environment to deliver features from concept to production, and troubleshoot issues in a timely manner. 

We Offer 

• Competitive Compensation with regular reviews and performance-based bonuses. 
• 100% Remote & Flexible Work schedule. 
• Paid Time Off: 24 working days of paid vacation, plus paid sick leave and public holidays. 
• Great Team & Culture: an international team with open communication, no micromanagement, and a strong focus on innovation and growth.