Profile of Agnis .

Agnis . Full Stack PHP Developer
9 years experience Latvia
Availability: Full time and part time
90.00$ /hr

Agnis is an experienced software engineer with a demonstrated history of working in the academic and industry sectors. He’s an expert problem solver specializing in algorithms and mathematics. Agnis joined Toptal to share those skills on projects that involve complex and challenging tasks.




Languages: PHP, C++, JavaScript, CSS, SQL, HTML5, AngelScript, Sass, Bash, Visual Basic, Python, TypeScript

Frameworks: Angular, Yii 2, Bootstrap, Laravel, Symfony, Redux, Mithril, React Native, Kohana, FuelPHP, CakePHP, AngularJS, Express.js

Libraries/APIs: jQuery, Google APIs, Standard Template Library (STL), React, Facebook API, Stripe, TensorFlow, Vue.js, Node.js

Tools: Postfix, Git, MATLAB, Apache, Microsoft Excel

Paradigms: REST, Object-oriented Programming (OOP), Agile

Platforms: RouterOS, Linux, Windows, iOS, WordPress, Mixpanel, Mailgun, Amazon Web Services (AWS), Android, Exchange Web Services, AWS EC2, Docker

Storage: MySQL, Memcached, MongoDB, PostgreSQL, Redis, SQLite, SQL Server 2017, Azure Cloud Services, AWS RDS, AWS S3

Other: Algorithms, Mathematics, Payment APIs, Networks, Artificial Intelligence (AI), ChartMogul, Chargebee, Apple Pay, Google Pay, AWS, Payment Processing




Researcher | 2014 – PRESENT
University of Latvia

  • Researched new efficient quantum algorithms that involved heavy maths.
  • Supervised student projects.
  • Worked as a teaching assistant in the following courses: Graph Theory, Computational Complexity, Applied Algorithms, and Quantum Computing courses.
  • Conducted numerical experiments.
  • Participated in scientific conferences.

Technologies: TensorFlow, C++, Python, MATLAB


Freelancer Web Developer | 2019 – 2019

  • Refactored an existing lead management system written in Laravel, React, and Mithril.
  • Used Mailgun for routing incoming emails.
  • Implemented real-time events using Node.js and Redis.
  • Used the Google Geolocation and Distance API.
  • Handled the SEO on a WordPress landing page.

Technologies: WordPress, Payment Processing, Mailgun, Google APIs, Mithril, Node.js, React, Laravel, PHP


Freelancer Web Developer | 2019 – 2019

  • Created a REST API for a large dating site.
  • Coded the back end for in-app purchases and push notifications.
  • Improved the existing site speed at least 5x.
  • Worked with third-party APIs.
  • Rewrote the messaging service in Redis/Node.js.
  • Implemented the PSD2 changes for the Chargebee integration.
  • Integrated the JWT authentication to work alongside the password authentication.

Technologies: Amazon Web Services (AWS), AWS, Google Pay, Apple Pay, Chargebee, Mixpanel, ChartMogul, Stripe, Redis, Node.js, Symfony, PHP


Developer | 2019 – 2019
Jack P Calvetti, LLC

  • Converted existing MATLAB code to C++, gaining a 1000x performance boost.
  • Vectorized the code and took advantage of the microprocessor AVX instruction set.
  • Split the work across multiple threads to use all available CPU cores in parallel.
  • Wrote Visual Basic code in Excel to export input data for the program.
  • Profiled the code to find performance bottlenecks.

Technologies: Visual Basic, Microsoft Excel, C++, MATLAB


Senior Web Developer | 2012 – 2018

  • Created web-based solutions while writing back-end and front-end programming with a focus on the back-end.
  • Led a small team of developers.
  • Configured web servers and optimized code performance issues.
  • Worked with all kinds of third-party APIs.
  • Met with clients, identified their needs, and offered solutions.
  • Set up a private Git server with custom permissions and hooks for internal use.

Technologies: Bootstrap, Sass, REST, CSS, HTML5, Angular, React, JavaScript, MongoDB, MySQL, Yii 2, PHP, Linux


Senior Software Developer | 2007 – 2018

  • Led a team of junior developers and interns.
  • Consulted on optimal configuration and architecture of the client systems to meet technical and business goals.
  • Developed an online learning platform for MikroTik network training courses.
  • Built a platform for monitoring a network of electric charging stations.
  • Created a type of software as a service (SaaS) for tracking a worker’s time in rural construction projects with mobile app check-ins allowed only in specified areas of the map.
  • Developed a CRM and connected it with EWS.
  • Constructed a platform for controlling internet connections on a fleet of long-distance coaches.
  • Used PHP to read Excel files exported from old accounting software and built a web dashboard for further data analysis.
  • Maintained old codebases for clients.
  • Created lotteries using the Phaser JS library for animations.
  • Optimized WordPress websites for speed.
  • Developed a web-based admin interface for a Postfix mail server.

Technologies: Postfix, WordPress, REST, iOS, Android, Bash, Windows, PHP, MySQL, Apache, Linux


C++ Developer | 2012 – 2014

  • Worked on a client/server app for factory production line control (e.g., issuing device serial numbers) using C++, AngelScript, PostgreSQL, SQLite, RouterOS, and low-level network programming.
  • Created custom RouterOS modules.
  • Worked on a type of routerboard installation software.
  • Looked for memory leaks using Valgrind.
  • Wrote code for different types of architecture.

Technologies: RouterOS, SQLite, PostgreSQL, AngelScript, C++





Ph.D. (in progress) degree in Computer Science

2013 – 2018 University of Latvia – Riga, Latvia


Master’s degree in Computer Science

2011 – 2003 University of Latvia – Riga, Latvia


Bachelor’s degree in Computer Science

2007 – 2011 University of Latvia – Riga, Latvia





Codility Golden Award (Strontium 2019)

JANUARY 2019 – PRESENT Codility

See credential


Advanced Linux: The Linux Kernel



Neural Networks and Deep Learning

AUGUST 2017 – PRESENT Coursera

See credential


MikroTik Certified Network Associate

JULY 2012 – JULY 2015 MikroTik

Credential ID #1207NA011