Alexandre Ignjatovic

CTO as a Service

Salary / Daily rate

Paris, France

Freelance

Can come onsite

Skills

Ruby on RailsBackend DevelopmentFullstack DevelopmentRubyRedisC#Product StrategyJavascriptNodeAmazon RedshiftLinuxContent StrategyBranding StrategyEvent ManagementCopywritingSQL databasesMachine LearningAWS

Languages

English

About me

Intro

Seasoned Fractional CTO Coach & Mentor with 15+ years building exceptional teams and products across banking and tech sectors. Successfully doubled tech team size while reducing production defects by half, implemented ML/AI strategies, and led remote engineering teams during critical transitions. Combining technical expertise in Ruby development and AWS with strong mentorship capabilities to help technology leaders reach their full potential.

Links

Work experience

Fractional CTO Coach & Mentor

FreelanceFreelance

Feb 2024 - Present

2 years 9 months

Paris et périphérie · Hybrid

Partnered with a newly promoted CTO to strengthen leadership, engineering strategy, and team effectiveness. Key contributions included: Provided frameworks for optimizing strategic planning, prioritization, and energy management in a high-responsibility role. Supported the development of a clear technical vision, roadmap, and long-term engineering strategy. Advised on engineering management best practices, including goal setting, feedback culture, and team structuring. Conducted an organizational audit, leading to a refined engineering and product team structure. Facilitated training sessions to enhance developer efficiency and technical excellence.

Chief Technology Officer

Simundia

May 2022 - Mar 2024

1 year 11 months

Paris, France

I defined and lead the technology strategy of the company in line with market perspectives and Simundia growth objectives: * Doubled the size of the tech team while reducing by half the quantity of production defects * Led the ML/AI strategy development * Rationalized infrastructures and costs * Implemented a code quality and security initiative

Senior Engineering Manager

Doctolib

Mar 2018 - Mar 2022

4 years 1 month

Paris, France

I defined and lead the technology strategy of the company in line with market perspectives and Doctolib growth objectives: • I was in charge of the recruitment of engineers in my feature teams. • I was accountable for the quality and velocity of my teams delivery. • I participated in the market analysis, the definition of the product strategy and the roadmap definition for our patient initiatives. • I defined and executed the technology roadmap for future releases of our PMS connectors. • I defined the transition between an on-site team of engineers to a fully remote team during the sanitary crisis, and after. • I participated to our Career Path initiative, and was leading the ambassadorship track. I built and led several feature teams at Doctolib: • Practice Management System, in charge of the desktop interop initiative. This team was in charge of building connectors between desktop legacy software and the Doctolib backend. • TLK, which was one of the two teams building the tele-consultation service. This team focus was prescription workflow and billing. • Patient Identity Management, in charge of Identity management for 50M+ patients. Fun fact: Starting early 2020, I started to lead the global DevRel initiative at Doctolib. This initiative is an employer branding effort for tech talents. To this extend, I managed a transverse team of 25 people participating to several projects/efforts: • The DoctoTechLife newsletter • The DoctoTechLife SoMe efforts • The public speaking internal training • The blog post writing internal training • Speaking opportunities for tech events • Sponsorship opportunities for tech events • Tech blog post writing efforts (medium and dev.to) • Tech events organization • Meetups hosting/organization/animation Funnier fact: mid 2021, I became global talent marketing lead, and led a team of marketing managers in charge of Doctolib's employer branding roadmap definition and execution over 3 countries (France, Germany and Italy).

Chief Technology Officer

Appaloosa.io

Jan 2016 - Mar 2018

2 years 3 months

Paris Area, France

I defined and lead the technology strategy of the company in line with market perspectives and Appaloosa growth objectives : • I was in charge of the recruitment of engineers. Manager of 10 software engineers. • I defined the Quality Assurance (QA) strategy and helped leverage the test culture. • I participated in the market analysis, the business plan and defined the new technical strategy for the new version of Appaloosa iOS offer (iOS MAM). • I lead the market analysis and defined the new technical strategy for the new version of Appaloosa Analytics backend. • I defined the technology roadmap for future releases of Appaloosa. • I defined the transition between a team of fullstack engineers working on all part of the product into several more specialised teams (frontend/backend/mobile).

FollowAnalytics

Jan 2014 - Jan 2016

2 years 1 month

Paris Area, France

Senior R&D Director

Jun 2015 - Jan 2016

8 months

Paris Area, France

After successfully occupying my previous position as a Technical Leader, I had the opportunity to be a R&D Director at Follow Analytics. My roles: - Develops and prioritizes pipeline of projects based on R&D criteria - Manages R&D projects from envisioning to planning to completion by engaging internal and external stakeholders - Still participate in conception and development of the product. Study around architecture and quality enhancements.

Technical Leader

Sep 2014 - Jul 2015

11 months

Paris Area, France

After taking care of enforcing the reliability of several components of our SaaS platform, my role shifted to Technical Lead. My roles: - Participate to the architectural studies around the product. - Participate in the conception and development of the product. - Define development guidelines, and ensure respect of best practices relative to our selected technologies (AWS Redshift / SQL, Ruby on Rails, redis, etc.)

Ruby On Rails Lead Developer

Jan 2014 - Jan 2015

1 year 1 month

Paris Area, France

In the interesting context of a fast growing mobile app tracking startup, I participated in the conception, and development of a SaaS platform, and its scalability. My roles: - Study and develop newly requested components, in Ruby on Rails. - Lead a small team of RoR developpers. - Ensure the scalability of the platform by preparing and executing the backend migration from mongo db to AWS Redshift. - Ensure maintainability of the source code and respect of the agile processes.

Algorithmic Trading BA/QA Team Leader

BNP Paribas

Jan 2012 - Jan 2014

2 years 1 month

Paris Area, France

At BNP Arbitrage, during the Exane/BNP partnership, my role was to: * Write specifications according to the Exane's Quant requirements * Write Test Campaigns * Support the conception engineers during development * Execute test campaigns and report to management * Manage a team of 5 Business Analyst and QA validators Financial topics: Algorithmic trading, FIX, Dark Pools, Exchanges

Conception engineer

OFI Asset Management

Mar 2010 - Jan 2012

1 year 11 months

Conception engineer - front office tools

SGCIB

Jun 2008 - Dec 2009

1 year 7 months

Conception engineer

Calyon

Apr 2008 - Jul 2008

4 months

MOE Trading repo

Natixis

Apr 2007 - May 2008

1 year 2 months

Conception Engineer

Quod Financial

Jan 2005 - May 2007

2 years 5 months


Education

EPITA: Ecole d'Ingénieurs en Informatique

Engineer

1999 - 2004

5 years 1 month

EPITA: Ecole d'Ingénieurs en Informatique

Cognitive Science

1999 - 2004

5 years 1 month

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