Miroslav Csonka
Lead Backend Developer at Bleach London- Claim this Profile
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Czech Native or bilingual proficiency
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English Full professional proficiency
Topline Score
Bio
Amy Somers
Miroslav was given probably the best feedback I've ever had for a candidate who has interviewed for one of my clients. Considering the process was during a very uncertain time he showed great enthusiasm and professionalism throughout the process. I would definitely recommend Miroslav for any Ruby contract roles.
Ahmed Shehab
Miroslav is a brilliant engineer and a fantastic colleague. His depth of knowledge across the stack singles him out as a real software connoisseur, and his creative approach to solving problems helped the team overcome various difficult challenges. He's a genuine team player; always on the lookout to help others and provide valuable guidance. I wouldn't miss the chance to work with him again and would highly recommend him.
Amy Somers
Miroslav was given probably the best feedback I've ever had for a candidate who has interviewed for one of my clients. Considering the process was during a very uncertain time he showed great enthusiasm and professionalism throughout the process. I would definitely recommend Miroslav for any Ruby contract roles.
Ahmed Shehab
Miroslav is a brilliant engineer and a fantastic colleague. His depth of knowledge across the stack singles him out as a real software connoisseur, and his creative approach to solving problems helped the team overcome various difficult challenges. He's a genuine team player; always on the lookout to help others and provide valuable guidance. I wouldn't miss the chance to work with him again and would highly recommend him.
Amy Somers
Miroslav was given probably the best feedback I've ever had for a candidate who has interviewed for one of my clients. Considering the process was during a very uncertain time he showed great enthusiasm and professionalism throughout the process. I would definitely recommend Miroslav for any Ruby contract roles.
Ahmed Shehab
Miroslav is a brilliant engineer and a fantastic colleague. His depth of knowledge across the stack singles him out as a real software connoisseur, and his creative approach to solving problems helped the team overcome various difficult challenges. He's a genuine team player; always on the lookout to help others and provide valuable guidance. I wouldn't miss the chance to work with him again and would highly recommend him.
Amy Somers
Miroslav was given probably the best feedback I've ever had for a candidate who has interviewed for one of my clients. Considering the process was during a very uncertain time he showed great enthusiasm and professionalism throughout the process. I would definitely recommend Miroslav for any Ruby contract roles.
Ahmed Shehab
Miroslav is a brilliant engineer and a fantastic colleague. His depth of knowledge across the stack singles him out as a real software connoisseur, and his creative approach to solving problems helped the team overcome various difficult challenges. He's a genuine team player; always on the lookout to help others and provide valuable guidance. I wouldn't miss the chance to work with him again and would highly recommend him.
Credentials
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AWS Certified Cloud Practitioner
Amazon Web Services (AWS)May, 2020- Oct, 2024
Experience
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Bleach London
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United Kingdom
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Personal Care Product Manufacturing
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1 - 100 Employee
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Lead Backend Developer
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2020 - Present
Responsibilities: * Gathering requirements, preparing product and tech roadmaps, and writing tickets * Building/Leading a team of 4 backend engineers * Software architecture Achievements: * Launched a new e-commerce platform with integrations to SAP, a fulfillment center, financial reporting, email/segmentation platforms, Zoom, Shopify, and other ~10 smaller systems * Achieving resilient and introspect-able backend architecture using events, retries, alerting, and… Show more Responsibilities: * Gathering requirements, preparing product and tech roadmaps, and writing tickets * Building/Leading a team of 4 backend engineers * Software architecture Achievements: * Launched a new e-commerce platform with integrations to SAP, a fulfillment center, financial reporting, email/segmentation platforms, Zoom, Shopify, and other ~10 smaller systems * Achieving resilient and introspect-able backend architecture using events, retries, alerting, and logging * High velocity and learning culture of multiple deploys a day and high quality * Continuous pipeline (staging environments, development pipelines, end-to-end testing, test coverage Technologies: Ruby, Ruby on Rails, GraphQL, PostgreSQL, Sidekiq, event store, Redis Show less Responsibilities: * Gathering requirements, preparing product and tech roadmaps, and writing tickets * Building/Leading a team of 4 backend engineers * Software architecture Achievements: * Launched a new e-commerce platform with integrations to SAP, a fulfillment center, financial reporting, email/segmentation platforms, Zoom, Shopify, and other ~10 smaller systems * Achieving resilient and introspect-able backend architecture using events, retries, alerting, and… Show more Responsibilities: * Gathering requirements, preparing product and tech roadmaps, and writing tickets * Building/Leading a team of 4 backend engineers * Software architecture Achievements: * Launched a new e-commerce platform with integrations to SAP, a fulfillment center, financial reporting, email/segmentation platforms, Zoom, Shopify, and other ~10 smaller systems * Achieving resilient and introspect-able backend architecture using events, retries, alerting, and logging * High velocity and learning culture of multiple deploys a day and high quality * Continuous pipeline (staging environments, development pipelines, end-to-end testing, test coverage Technologies: Ruby, Ruby on Rails, GraphQL, PostgreSQL, Sidekiq, event store, Redis Show less
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Raylo
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United Kingdom
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Financial Services
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1 - 100 Employee
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Senior Software Engineer (contract)
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2022 - 2023
* Implemented a new asset return integration to allow customers to return their devices to Raylo * Improved the operations process to manage inventory, asset returns, * Implemented a new asset return integration to allow customers to return their devices to Raylo. * Onboarded half a dozen new partners to use Raylo Pay on their website, driving our revenue. * Improved the operations process to manage inventory, asset returns, and device fulfillment.and device fulfillment * Onboarded… Show more * Implemented a new asset return integration to allow customers to return their devices to Raylo * Improved the operations process to manage inventory, asset returns, * Implemented a new asset return integration to allow customers to return their devices to Raylo. * Onboarded half a dozen new partners to use Raylo Pay on their website, driving our revenue. * Improved the operations process to manage inventory, asset returns, and device fulfillment.and device fulfillment * Onboarded half a dozen new partners to use Raylo Pay on their website to drive our revenue up Technologies: Ruby, Ruby on Rails, PostgreSQL, GraphQL, Sidekiq Show less * Implemented a new asset return integration to allow customers to return their devices to Raylo * Improved the operations process to manage inventory, asset returns, * Implemented a new asset return integration to allow customers to return their devices to Raylo. * Onboarded half a dozen new partners to use Raylo Pay on their website, driving our revenue. * Improved the operations process to manage inventory, asset returns, and device fulfillment.and device fulfillment * Onboarded… Show more * Implemented a new asset return integration to allow customers to return their devices to Raylo * Improved the operations process to manage inventory, asset returns, * Implemented a new asset return integration to allow customers to return their devices to Raylo. * Onboarded half a dozen new partners to use Raylo Pay on their website, driving our revenue. * Improved the operations process to manage inventory, asset returns, and device fulfillment.and device fulfillment * Onboarded half a dozen new partners to use Raylo Pay on their website to drive our revenue up Technologies: Ruby, Ruby on Rails, PostgreSQL, GraphQL, Sidekiq Show less
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SilkFred.com
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United Kingdom
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Retail
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1 - 100 Employee
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Senior Software Engineer (contract)
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2021 - 2022
* Automated b2b purchasing worklow by building a portal for 3rd party suppliers to allow them to raise/monitor their purchases and deliveries. This resulted in multiple internal employes being able to focus on other tasks. Technologies: Ruby, Ruby on Rails, MongoDB, JavaScript, CSS * Automated b2b purchasing worklow by building a portal for 3rd party suppliers to allow them to raise/monitor their purchases and deliveries. This resulted in multiple internal employes being able to focus on other tasks. Technologies: Ruby, Ruby on Rails, MongoDB, JavaScript, CSS
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Babylon Health
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United Kingdom
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Pharmaceutical Manufacturing
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Senior Software Engineer (contract)
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2018 - 2020
* Rebuilld patient administration portal to pull all their information to present a clear timeline for Operations team to quickly assist with help requests * Upgrade to Rails 5 * Automation of deployment pipeline Technologies: Ruby, Ruby on Rails, GraphQL, PostgreSQL, Javascript, Typescript, React.js * Rebuilld patient administration portal to pull all their information to present a clear timeline for Operations team to quickly assist with help requests * Upgrade to Rails 5 * Automation of deployment pipeline Technologies: Ruby, Ruby on Rails, GraphQL, PostgreSQL, Javascript, Typescript, React.js
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Funding Circle UK
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United Kingdom
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Financial Services
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300 - 400 Employee
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Software Engineer Technical Lead
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Sep 2017 - Oct 2018
After a reorganization of the company, I was tasked to build a team from scratch to take over US borrower platform. As a tech lead I focus on bringing the team together to create a cohesive unit rather than a group of individuals pulling in different directions. Here are few things to back it up * implemented 24/7 on-call support to improve ownership of our systems * reduced deployment cycle from 2 weeks to multiple times a day to get faster feedback * dockeri-ize… Show more After a reorganization of the company, I was tasked to build a team from scratch to take over US borrower platform. As a tech lead I focus on bringing the team together to create a cohesive unit rather than a group of individuals pulling in different directions. Here are few things to back it up * implemented 24/7 on-call support to improve ownership of our systems * reduced deployment cycle from 2 weeks to multiple times a day to get faster feedback * dockeri-ize applications to improve local development * aligning our architecture with our domain * guide the team make decisions (problem statement -> brainstorm -> pros/cons -> taking a vote -> everyones buy-in) * made sure things get documented to reduce single points of failure, increase visibility, and cross team communication * fostered feedback culture by anonymous questionnaires and face-to-face chats
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Software Engineer
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Aug 2015 - Sep 2017
Instant Quote experience: Our team with collaboration with a risk team has built a smaller platform to run statistical models based on customer data to evaluate their risk assessment. Later on, we've leveraged this to show customers their quote, which turned into a UX project with multiple customizations to fit user needs. Internal operational efficiencies: Once we've determined risk assessment, we focused on optimizing our internal operations to focus our efforts on… Show more Instant Quote experience: Our team with collaboration with a risk team has built a smaller platform to run statistical models based on customer data to evaluate their risk assessment. Later on, we've leveraged this to show customers their quote, which turned into a UX project with multiple customizations to fit user needs. Internal operational efficiencies: Once we've determined risk assessment, we focused on optimizing our internal operations to focus our efforts on high-risk customers with great detail and let low-risk customers through only with few checks. Decision platform highlights: We've built a fully event-driven system that we could scale up and down based on our customer needs or our business requirements. This became handy when we ran multiple models at the same time and we needed to evaluate historical data. With this platform, we could deliver new models within minutes or hours instead of weeks as it's an industry standard. All of this without sacrificing user experience, traceability, scalability, development experience, or any other technical standard. Technologies used: Ruby, Ruby on Rails, RabbitMQ, PostgreSQL, R, Avro, Docker
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Juicymo
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Czechia
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IT Services and IT Consulting
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1 - 100 Employee
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Ruby on Rails API developer
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Jan 2014 - Aug 2015
Total design, development and deployment of a Ruby on Rails applications aiming to support our customer's needs. - Gathering requirements, designing the solution - API documentation and design (Swagger) - Behaviour driven development (cucumber, rspec, json_expressions) - Development of the API and administration interface (grape) - Deployment on Shelly cloud, Heroku or our infrastructure Total design, development and deployment of a Ruby on Rails applications aiming to support our customer's needs. - Gathering requirements, designing the solution - API documentation and design (Swagger) - Behaviour driven development (cucumber, rspec, json_expressions) - Development of the API and administration interface (grape) - Deployment on Shelly cloud, Heroku or our infrastructure
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PHP/JavaScript programmer
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2013 - 2014
Development of insurance comparator, internal tools to improve business processes, implementation of new graphic designs, - Design and development of custom form builder - Building library for sending SMS via our Telnet server - UX tweaks - Used technologies: PHP5, JavaScript, HTML5, CSS and of course TDD Development of insurance comparator, internal tools to improve business processes, implementation of new graphic designs, - Design and development of custom form builder - Building library for sending SMS via our Telnet server - UX tweaks - Used technologies: PHP5, JavaScript, HTML5, CSS and of course TDD
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Vanio Solutions s.r.o.
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Czechia
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Technology, Information and Internet
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1 - 100 Employee
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PHP/JavaScript Programmer
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2012 - 2013
Development of new or improving existing systems to help our customers achieve their business goals. - Development of tool for monitoring construction company's property (cranes, bulldozer..) - Improving library system for Czech college - Used technologies: PHP5, Nette, Javascript, Knockout, jQuery, MySQL Development of new or improving existing systems to help our customers achieve their business goals. - Development of tool for monitoring construction company's property (cranes, bulldozer..) - Improving library system for Czech college - Used technologies: PHP5, Nette, Javascript, Knockout, jQuery, MySQL
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Education
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2014 - 2015
Czech Technical University in Prague
Computer Software Engineering -
2013 - 2014
Unicorn College - Praha
Information technologies -
2009 - 2013
Educanet
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