Bastian Isensee

Senior Backend Engineer Go & Technical Consultant

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Aumühle, Germany

Experience

Apr 2024 - Mar 2025
1 year

Senior Backend Engineer Go & Technical Consultant

Regulated Trading System for Digital Assets

  • Technical consulting to meet the regulatory MiCA requirements for a digital trading platform
  • Designing and developing backend components and APIs to meet transparency and auditability requirements
  • Optimizing core functions in order execution and market data delivery for performance and reliability under high load
  • Conducting interviews and providing structured onboarding for new developers
  • Successfully and timely implementing the regulatory MiCA requirements, ensuring uninterrupted operation
  • Reducing user issues and common support requests by resolving complex backend problems
  • Strengthening the development team through effective onboarding, mentoring, and knowledge transfer
Dec 2023 - Present
2 years 1 month

Senior Software Engineer & Technical Consultant

Configuration Application for IT Security Administrators

  • Designing and developing a configuration application for complex IT security systems to support and simplify administrative workflows
  • Implementing full integration into existing software systems while improving usability and maintainability
  • Delivering all key configuration features so they can be provided to end customers
  • Significantly improving usability for administrators
Sep 2022 - Sep 2023
1 year 1 month

Senior Backend Developer Go

Cryptocurrency Trading Platform

  • Developing backend functions for a regulated crypto exchange in order execution, market data delivery, reporting, and accounting
  • Designing and presenting architecture proposals to scale the existing microservices landscape
  • Identifying and resolving performance issues and complex bugs in the production system
  • Advising business stakeholders on current system behavior, new requirements, and functional improvements
  • Delivering new features to end customers, expanding revenue opportunities
  • Reducing operational risks and support effort by fixing bugs and eliminating manual workarounds
  • Participating in architecture planning to ensure long-term scalability and maintainability
Jul 2016 - Aug 2022
6 years 2 months

Senior Software Engineer

Algorithmic Securities Trading

  • Developing various software systems for a global algorithmic securities trader in trading, risk management, compliance, and back office
  • Improving multiple systems to meet increased performance, reliability, and regulatory requirements under MiFID II
  • Taking responsibility for requirements analysis, architecture design, and technical coordination in cross-functional teams
  • Leading technical interviews and mentoring junior developers to boost team performance and quality
  • Significantly improving performance, reliability, and functionality across large parts of the software landscape
  • Successfully implementing all regulatory requirements under MiFID II by timely adapting systems for risk management, back office, and trading
  • Enhancing the development team's performance and quality through structured onboarding and individual mentoring
Aug 2012 - Jun 2016
3 years 11 months

Software Engineer

Manufacturing Execution Systems for the Pharmaceutical Industry

  • Extending and customizing MES solutions for pharmaceutical clients with a focus on ERP integration and customer-specific workflows
  • Implementing and acceptance testing for business-critical functions in collaboration with end users and in compliance with regulatory standards like GMP
  • Advising the product team on MES evolution with respect to future ERP interfaces
  • Successfully delivering customer-specific ERP-MES integrations considering regulatory requirements
  • Preparing the next generation of MES with a future-proof ERP interface through effective knowledge transfer and documentation

Summary

Bastian Isensee is a backend developer and technical consultant with over 12 years of experience building reliable software systems for regulated and mission-critical industries such as financial services and trading platforms. Clients appreciate his ability to deliver maintainable solutions where correctness, performance, and auditability are essential for business success.

Bastian specializes in Golang and works with technologies like PostgreSQL, Kafka, REST, Docker, and Kubernetes. He places great importance on gaining a deep understanding of business requirements to implement technical solutions that meet specific needs. In addition to active development, he supports teams as a trusted advisor in architecture decisions, thorough code reviews, mentoring, and technical leadership.

Skills

Primary Tech Stack

  • Golang
  • Postgresql
  • Kafka
  • Rest / Websocket / Rpc
  • Docker
  • Kubernetes
  • Linux
  • Aws
  • Ci/cd - Gitlab
  • Prometheus
  • Grafana
  • Cucumber / Godog

Additional Skills

  • Java
  • Spring
  • Hibernate
  • Junit
  • Mockito
  • Bash
  • Fix
  • Openapi
  • Sqlite
  • Mongodb
  • Rabbitmq
  • Oracle Rdbms
  • Helm
  • Kong
  • Git
  • Agile / Scrum / Kanban

Languages

German
Native
English
Advanced

Education

Apr 2013 - Mar 2016

FernUniversität in Hagen

Master of Science · Practical Computer Science · Germany

Sep 2009 - Feb 2013

Hochschule Harz (FH)

Bachelor of Engineering · Automation Technology and Engineering Informatics · Germany

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