Senior Backend .NET Developer & Team Lead · Kamil Binko
Backend Engineering · AI Systems · Technical Leadership
I design and lead backend systems for AI-driven platforms and mission-critical rule engines — turning ambiguous specs into resilient production software, and taking technical ownership when no one else does.
Where I've built and led
- 01
Lead Developer
Swappsi Software
Apr 2024 — May 2026
Became the de facto technical lead for CircularAI, an AI-powered platform helping cities turn circular-economy strategies into structured missions and projects, while also delivering client integration work such as QCS's Content AI integration.
- Acted as de facto technical lead — architecture decisions, hands-on backend implementation, and technical mentoring
- Designed and built "Cai", a shared AI-communication service adopted across 25–50 integration points, along with the background-task and real-time (SignalR) patterns it depends on
- Owned core platform capabilities including Missions, Projects, Procurement, authentication, and Elasticsearch search
- Led a separate 3–4 month integration between QCS's legacy policy system and an externally built AI platform
- 02
IT Consultant & Coach
Consid AB
Sep 2022 — May 2024
Consulted for two major clients — CellaVision and Trygg-Hansa — leading a junior team, and later replacing a two-year UI test-framework effort with a purpose-built alternative in two weeks.
- Led a team of junior developers at CellaVision: code reviews, mentoring, and hands-on technical guidance
- Worked on .NET/WPF applications with a senior team, focused on maintainability and clean architecture
- Built claims-management modules for Trygg-Hansa used directly by insurance claims handlers
- Replaced a two-year, five-developer WPF UI test-framework effort with a self-hosted alternative built in ~2 weeks
- 03
Tech Lead & Coach
Unity a Vision AB
Apr 2022 — May 2022
Coached junior developers and contributed to system design at a software-services and mentoring company built around Unity 3D.
- Coached junior developers as the primary focus of the engagement
- Contributed to system design for Unity 3D–based projects
- 04
Tech Lead at Haki
Omegapoint
Nov 2021 — Mar 2022
Bootstrapped a new Unity 3D project from scratch, including its architecture and core infrastructure.
- Designed the architectural framework for a new Unity 3D project
- Implemented Dependency Injection, which is not a standard Unity capability
- Orchestrated tasks for junior developers on the team
- 05
Backend Developer
Additude AB
Apr 2021 — Oct 2021
First contracting role, focused on API development and simulated environments.
- Built RESTful APIs and simulated environments for client assignments
- Used reflection-based tooling to reduce boilerplate
- 06
Backend Developer → Team Lead
Aviolinx (now NAVBLUE-Sweden)
Jul 2017 — Jul 2020
Joined straight out of university on the team building and maintaining Mimer, the rule engine evaluating the legality of actions within Aviolinx's flagship airline-operations product, Raido.
- Delivered a substantial payroll feature independently as a junior developer, using the existing calculation infrastructure
- Extended and modified the core rule engine over 3 years as requirements evolved
- Promoted to Team Lead after one year, coordinating the development team and handling direct customer contact and specifications
- 07
Computer Room Supervisor (Lab Assistant)
Malmö University
2015 — 2016
Part-time role while studying Game Development at Malmö University, supporting first-year students in the Data Structures and Algorithms course.
- Selected as a lab assistant based on course performance
- Helped students understand assignments, debug code, and work through problems; graded coursework
- Developed a teaching approach of breaking problems into small pieces and guiding students to their own answers rather than handing over solutions
A little about how I work
I started as the engineer who wanted to understand every layer of the stack, and that instinct hasn't gone away — it's just moved up a level, from code to the systems and teams that produce it.
These days I spend most of my time on architecture decisions, technical mentorship, and the unglamorous work of keeping a growing engineering org coherent: clear ownership, sane interfaces between teams, and enough shared practice that quality doesn't depend on who's on call.
I care about building things that last longer than the person who built them, and about leaving every team I work with a little more capable than I found it.
Technical Leadership
Setting technical direction across teams, driving architecture decisions, and owning outcomes end to end.
System Architecture
Designing service boundaries and data flows that stay simple to reason about as scale and headcount grow.
Distributed Systems
Event-driven pipelines, consistency trade-offs, and operating systems reliably under real production load.
Backend Engineering
Deep, hands-on experience across service design, data modeling, and performance-critical code paths.
Product Engineering
Translating ambiguous product problems into shipped software without losing sight of the underlying user need.
Mentoring
Growing engineers into senior and lead roles through design-review pairing and deliberate, structured feedback.
Engineering Practices
Testing strategy, review culture, and delivery pipelines that make quality the default, not an afterthought.
Hiring & Team Building
Running a hiring bar that holds under pressure, and building teams that stay effective as they grow.
Interested in building something difficult?
Open to Senior Backend, Team Lead roles. The fastest way to reach me is email.