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I deliver thoughtful software design that creates measurable business impact. This is the foundation of Rocketfuel Software: the conviction that backend systems and data platforms should drive growth. I partner with tech startups and scale-ups to translate complex technical challenges into elegant, scalable solutions. My approach combines thoughtful software design with strategic consulting. I work collaboratively with businesses to understand underlying needs, make pragmatic technical decisions, and deliver outcomes that drive substantial growth. I thrive when requirements evolve and priorities shift, maintaining focus on delivering incremental value that collects early feedback. Through transparent communication and full ownership of technical decisions, I build trusted client relationships that extend beyond code delivery.…I deliver thoughtful software design that creates measurable business impact. This is the foundation of Rocketfuel Software: the conviction that backend systems and data platforms should drive growth. I partner with tech startups and scale-ups to translate complex technical challenges into elegant, scalable solutions. My approach combines thoughtful software design with strategic consulting. I work collaboratively with businesses to understand underlying needs, make pragmatic technical decisions, and deliver outcomes that drive substantial growth. I thrive when requirements evolve and priorities shift, maintaining focus on delivering incremental value that collects early feedback. Through transparent communication and full ownership of technical decisions, I build trusted client relationships that extend beyond code delivery.

Frans Bol

Back-End Developer, Full Stack Developer, Web Developer, +1

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I deliver thoughtful software design that creates measurable business impact. This is the foundation of Rocketfuel Software: the conviction that backend systems and data platforms should drive growth. I partner with tech startups and scale-ups to translate complex technical challenges into elegant, scalable solutions. My approach combines thoughtful software design with strategic consulting. I work collaboratively with businesses to understand underlying needs, make pragmatic technical decisions, and deliver outcomes that drive substantial growth. I thrive when requirements evolve and priorities shift, maintaining focus on delivering incremental value that collects early feedback. Through transparent communication and full ownership of technical decisions, I build trusted client relationships that extend beyond code delivery.…I deliver thoughtful software design that creates measurable business impact. This is the foundation of Rocketfuel Software: the conviction that backend systems and data platforms should drive growth. I partner with tech startups and scale-ups to translate complex technical challenges into elegant, scalable solutions. My approach combines thoughtful software design with strategic consulting. I work collaboratively with businesses to understand underlying needs, make pragmatic technical decisions, and deliver outcomes that drive substantial growth. I thrive when requirements evolve and priorities shift, maintaining focus on delivering incremental value that collects early feedback. Through transparent communication and full ownership of technical decisions, I build trusted client relationships that extend beyond code delivery.

Available to hire

I deliver thoughtful software design that creates measurable business impact. This is the foundation of Rocketfuel Software: the conviction that backend systems and data platforms should drive growth. I partner with tech startups and scale-ups to translate complex technical challenges into elegant, scalable solutions. My approach combines thoughtful software design with strategic consulting. I work collaboratively with businesses to understand underlying needs, make pragmatic technical decisions, and deliver outcomes that drive substantial growth. I thrive when requirements evolve and priorities shift, maintaining focus on delivering incremental value that collects early feedback. Through transparent communication and full ownership of technical decisions, I build trusted client relationships that extend beyond code delivery.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Dutch

Fluent

Spanish; Castilian

Advanced

Croatian

Intermediate

Work Experience

Lead Software Engineer (Contract) at Socrates CRM

May 1, 2025 - December 1, 2025

Contracted as the sole developer on a greenfield backend for a multi-tenant CRM system. Took full technical ownership, making architectural decisions and defining delivery timelines while navigating evolving requirements. Achieved the first end-to-end data pipeline within six weeks and delivered full project scope within 20 weeks, processing data from dozens of sources and over a million records. Built configurable, version-controlled YAML-driven architecture with multi-tenancy and idempotent workflows, enabling reliable error recovery. Established development infrastructure and provided technical guidance shaping key business decisions; deployed to production with strong customer reception.

Senior Software Engineer / Data Engineer (Contract) at Rated Labs

August 1, 2024 - January 1, 2025

Contract to a small, high-performing team to rapidly develop a greenfield product targeting product-market fit. Balanced speed with quality, drove feature iterations to attract and retain customers. Designed and implemented a customer alert system delivering an end-to-end solution to increase product engagement and user retention.

Senior Software Engineer / Data Engineer at FanDuel

May 1, 2021 - July 1, 2024

Led data engineering initiatives for a back-office platform, transforming it into a cohesive, user-friendly application. Empowered the engineering team to contribute and removed bottlenecks. Designed and implemented a customer alert system and other data-driven features to boost product engagement and user retention.

Senior Software Engineer / Data Engineer at LandTech

September 1, 2021 - July 1, 2024

Led development of a greenfield data ingestion engine that fetches data from hundreds of sources, pre-transforms it, and ingests it into the data warehouse. Achieved fivefold increases in data capacity and 5x faster end-to-end data acquisition. Migrated bespoke legacy data pipelines to the new platform, modernised automated testing capabilities, and implemented a continuous deployment strategy. Mentored team members as part of a geo-distributed team.

Senior Software Engineer / Data Engineer at FanDuel

September 1, 2018 - July 1, 2021

Built data pipelines to the data lake and Redshift, established a feature store catalog, and set up automated testing and deployment processes. Drove data quality initiatives and supported rapid iteration for product features.

Senior Web Developer at KolektivA

September 1, 2012 - August 1, 2013

Senior Web Developer delivering PHP and Magento-based e-commerce solutions for a multi-country footprint; implemented payment gateways and reporting modules; provided mentorship to a team of seven developers to ensure high-quality delivery.

Senior Web Developer at Web Burza

December 1, 2010 - August 1, 2012

Backend development for multi-country e-commerce platforms, implementation of payment gateways, reporting modules, and ensuring compliance across markets.

Software Developer at Scarlet Telecommunication

December 1, 2005 - December 1, 2010

In-house software development using Python, PHP, PostgreSQL; implemented admin web interfaces, internal workflows, and data-driven reporting; contributed to migrating large customer datasets to a new voice gateway and improved operational efficiency.