Senior Software Engineer | fractional CTO | Passionate about building robust systems using Elixir

Result oriented fractional CTO & Senior Software Engineer with proven track record. Over decade of experience in web engineering, product building, people management and processes establishment.

Passionate about elixir, distributed systems, event driven design and technical scaling.

Skills

• Development 10+ years
• Management 6+ years
• Product management 3+ years

Programming languages:

• Golang, Elixir, Ruby, Python, PHP, JavaScript/TypeScript, Swift
• hobby: Haskell, Scala, Rust, Lisp

Databases:

• Postgres, MySQL, Redshift, MongoDB, ElasticSearch, Redis, Sqlite, DragonflyDB, Cassandra, Snowplow, Clickhouse

Architectures:

• Service-Oriented Architecture (SOA), Micro-services, Auto-Scaling, Queue/Workers, Pub/Sub, CQRS, Domain-Driven Design (DDD), and Distributed Systems.

Other:

• Nginx, Docker, Vagrant, Kubernetes (k8s), AWS, bare metal
• Jenkins, CircleCI, Buildkite and GitHub Actions for automation and CI/CD
• RabbitMQ, Kafka, Sideqik, gRPC/rpc
• Datadog, Grafana, Prometheus, Kibana, Logstash

Experience

1703 Group

• Freelance aug 2023 - now **· Luxembourg, Luxembourg**
  • Fractional CTO oct 2023 - now
    • Spearheaded tech advancements as part-time CTO for a manufacturing firm.
    • Developed and executed company tech strategy and vision.
    • Managed vendor relationships and internal teams.
  • Senior Software Engineer oct 2023 - now
    • Freelance fullstack and backend projects, primarily in Go and Elixir.

Eurosender

• Head of IT & Product may 2022 - sep 2023 · 1 year 5 month · Luxembourg, Luxembourg

  • Led company tech strategy & vision which resulted in resolving 50% tech debt of the company within 1.5 years.
  • Was in charge of white label architecture design, development and sales processes which resulted in additional revenue stream and successfully sold to 2 governmental clients.
  • Developed departments KPIs and Objectives with focus on team performance which improved delivery velocity more than 300%.
  • Managed departments budgeting and P&L, hires and people promotions, reduced churn rate from 30% to 5%.
  • Was in charge of product quality and features delivery, achieved 99.99% uptime per year.
  • Successfully obtained ISO27001 and ISO9001 for organisation which opened opportunities to participate in 5 million+ € tenders.
  • Established and managed Luxembourg R&D office in total of 10 people with that successfully obtained two R&D grants total value of 5mln €.
  • Completely rebuilt pricing engine, which now able to serve 1bln pricing pairs in real time. Before that we had a limit for 400mln pricing pairs and it could take up to 7 seconds.

  (People management, Leadership, Tech strategy, ROI prioritisation, KPIs development, Partnerships, Budgeting, Vendor Negotiation and Management, Stakeholder Management and Communication, Cybersecurity and Data Protection, Regulatory Compliance and Standards, Technology Evaluation and Benchmarking, Change Management)

• Team Lead (acting Head of IT & Product) jan 2021 - may 2022 · 1 year 5 month · Kiev, Ukraine

  • Established agile IT and Product processes and developed culture of continuous improvement, which reduced devs churn rate by 85%.
  • Organised security testing and resolved all potential vulnerabilities of entire system.
  • Planned and managed entire ERP migration, including cross department requirements gathering within 4 month.
    • Accounting, Helpdesk, Sales, HR, Employees,
  • Daily direct management of product team (3 people) and tech team (10 people).

  (Jira, Confluence, Clickup, Agile, Scrum, Hiring, Product development, Team leadership, Strategic planning, Performance management, Resource allocation, Conflict resolution, Decision making, Problem-solving, Time management, Communication, Training and development)

• Senior Web Engineer dec 2020 - jan 2021 1 month · Ljubljana, Slovenia

  • Integrated Microsoft Azure SSO Integration and managed employees accesses.

  (MySQL, PHP, Symfony, API Platform, Python, Mongo, Docker, Nginx, Linux, AWS)

d.labs

• Technical Team Lead nov 2019 - nov 2020 · 1 year 1 month · Ljubljana, Slovenia
  • Quoter and yearly roadmap development for tech debt initiatives.
  • Led cross-functional team in the development and architecture of the Business of Fashion platform with a focus on architecture and leadership.
  • Initiated successful integration of Braze, implemented custom recurring payments tracking.
  • Contributed to iOS mobile app development and managed TestFlight and AppStore releases.
  • Mentored team members in Golang and Python, organised TechScaling webinars to foster skill development and knowledge sharing within the team.
  • Backend chapter lead, organised knowledge sharing across all backend engineers within the company.

(Leadership, technical strategy, team management, Agile project management, risk management, cybersecurity, business intelligence, data analysis, Elixir, Golang, PHP, Python, JavaScript (Node), Swift, Ruby, MySQL, Postgres, Redshift, ElasticSearch, Mongo, Redis)

• Web Engineer jan 2019 - nov 2019 · 11 month · Ljubljana, Slovenia
  • Spearheaded successful migration of data warehouse from Redshift to Snowplow, enhancing data processing efficiency.
  • Innovated and launched Paid Trials packages, Gift Cards, and 3DS authentication for payments, driving new revenue streams.
  • Designed and introduced B2B education bundles, significantly expanding market reach.
  • Seamlessly integrated Braze and Thinkific platforms, optimising user engagement and learning experiences.
  • Conducted impactful tech scaling workshops and webinars, fostering team skill development and knowledge sharing.
  • Led backend chapter, driving technical excellence and innovation within the company.

(MySQL, PHP, Symfony, Python, Mongo, Docker, Nginx, Linux, AWS, Golang, Elixir, Redshift, Snowplow, Kibana, Ruby, Postgres)

Sci-Tvn

• Project manager / Software engineer dec 2017 - aug 2019 · 1 year 8 month · Ljubljana, Slovenia
  • Successfully launched more than 3 products within the company.
  • Websites development and hosting management (on-premise & Azure cloud)
  • External vendors and freelancers management

(HTML, JavaScript, CSS, React js, React Native)

Jozef Stefan Institute

• Young Researcher (IT) oct 2016 - sep 2017 · 1 year · Ljubljana, Slovenia
  • Natural language processing algorithms research and development.
  • Web development and support for current projects.
  • Created internal portal for information exchange between departments.
  • Hosted and maintained internal on-premise server and managed databases for all department projects.

(Golang, Python, Haskell, Ruby, MySQL, Postgres, HTML, JavaScript, CSS)

FabLab

• Lector / Mentor Aug 2015 - Jul 2016 · 1 yr · Saint-Petersburg, Russia
  • Held Arduino course and students mentoring.
  • Held 3D printing course and students mentoring.

(Arduino, 3D Max, Autocad)

RD Software

• Assistant Web Developer Jun 2014 - Aug 2014 · 3 mos · Karlsruhe, Germany
  • Active development of drupal portal
  • Hosting and media files management

(PHP, Drupal, JavaScript, HTML)