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Sheet 01 · Chad Koslovsky

Frontend craft, with responsibility for the system behind it

Senior Front End Engineer · Lively

I build interfaces as part of the whole product: the data, access rules and support work matter as much as the screen. My work brings together React client delivery, a pricing application I operated end to end and an early-stage TSX framework of my own.

Sheet 02

Cover letter

I enjoy making complicated products feel natural to use. Lively interests me because a clear account or investment flow can help someone feel more confident about money they need for care; I would bring frontend craft and the habit of staying responsible after launch.

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Hi Lively team,

I call myself a technomancer. Technology has felt like magic to me since I was a kid, and I still get excited when it makes something difficult feel natural. Frontend work is where that becomes visible: someone can understand a choice, finish a task and get on with their day. Lively caught my attention because those moments involve money people may need for care, as well as savings they are building for the future. A clear interface matters a great deal when someone is deciding what they can spend or move into investments.

I spent time with your HSA and investment pages, especially the way Lively brings cash, transfers and the Schwab and Devenir options into one dashboard. The engineering challenge I see is keeping a connected experience understandable while the systems behind it have different responsibilities. I enjoy that meeting point between interface design and the rest of a product. I have long worked with React and TypeScript, but I have also stayed responsible for APIs, data, deployment and the people who need help when something goes wrong.

ProofMark is a completed client engineering contribution that reflects how I approach sensitive workflows. I designed the signing flow across identity, document and PDF fields, routing, audit history and verification, with explicit handling of security-sensitive state and fallback paths. React and Next.js were part of a stack that also included tRPC, Drizzle, PostgreSQL and Rust. The work joined the interface to the underlying document record rather than treating signing as an isolated screen. I would bring that care for state and handoffs to Lively's account and investment experiences, while learning the details of your financial partners and benefits domain.

At NuPrice, a long-term client engagement from 2019 to 2021, I built and operated the application that brought marketplace and competitor data into user-defined repricing rules and automated price decisions. Accounts, subscriptions, billing, analytics and embedded support were part of the same product responsibility. Supporting customers kept me close to the consequences of a confusing workflow or an integration problem. That experience is one reason your emphasis on both product feedback and production troubleshooting appeals to me: I like following a problem through to the person using the result.

I am also building Kerf, an early-development TypeScript/TSX framework with its own compiler and its UI toolkit. Working on reusable UI contracts, routing, authentication, data and actionable diagnostics for coding agents gives me room to think carefully about how an interface is put together and how another engineer will work on it. It is an independent framework, separate from my React work, and still developing. I use AI extensively in my engineering and creative work, and I remain responsible for understanding and checking what I ship.

My earlier systems work gives me another useful perspective. At Front Range Internet, I ran the NOC, handled escalations and ran the SOC 1 and SOC 2 audits. I worked with the CEO and CIO through an engineering tenure that included a company purchase and, later, about a year with sole systems-engineering responsibility while the NOC continued first-line support. I learned to make changes with the operating system and the people around it in mind. That habit still shapes how I investigate failures and communicate with a client or teammate.

I would enjoy bringing that mix of frontend craft and sustained responsibility to Lively. I am based in Milliken, Colorado, in Mountain time, and would welcome a conversation about where your investment experience needs the most attention. Helping people feel confident using something important is work I would be glad to do with your team.

Chad

Sheet 03

Experience

Technomancy IT LLC · Present

Founder / Product Engineer / Systems Lead

Lead a referral-based technical practice, carrying client needs through product design, implementation and ongoing support.

Build React and TypeScript interfaces backed by authenticated APIs and tenant-aware services; own the surrounding data, deployment and direct client support.

Deep dive

I grew freelance delivery into a referral-based practice and own the path from an incomplete client need to a production system. The role crosses product decisions, interfaces, services and technical operations; I bring in specialists when a project benefits from their craft.

My application and API authentication work includes OAuth/OIDC, PKCE and token exchange. Tenant-aware services and access-controlled connectors keep authority explicit across client-facing products and internal workflows. I also support clients directly after delivery, so an interface problem can be followed into its data, integration or operating environment.

NuPrice | Client engagement within Technomancy IT · 2019-2021

Product Engineering and IT (Long-Term Contract)

Built and operated a client application joining marketplace data, repricing rules, accounts, subscriptions and billing.

Owned analytics, embedded customer support and technical operations, following issues across the customer workflow and its underlying services.

Deep dive

NuPrice was a sustained client engagement from 2019 to 2021. It started while I was still at Front Range Internet, rather than following a clean break between jobs. I built and operated the full application, its billing, customer support and technical operations.

Marketplace and competitor data fed user-defined repricing rules and automated price decisions. Monitoring, analytics, accounts, subscriptions, a CMS and embedded support surrounded that workflow. The product was acquired. My documented responsibility was client engineering and operations; it does not establish equity ownership or acquisition proceeds.

Front Range Internet Inc. · 2015-2020

Senior Systems Engineer / Datacenter Architect

Ran the NOC and handled production escalations, with recovery verification, monitoring and operating procedures.

Migrated workloads from Hyper-V and VMware ESXi to Docker and Kubernetes; upgraded server and firewall infrastructure and ran SOC 1 and SOC 2 audits.

Deep dive

I worked at Front Range Internet Inc. from 2015 to 2020 and was a lead engineer through a company purchase. Later, after the senior engineer above me left, I was entrusted with sole systems-engineering responsibility for approximately a year. The NOC still provided first-line coverage and escalated unresolved issues to me.

I ran the NOC, owned recovery verification and monitoring, and migrated workloads from Hyper-V and VMware ESXi into Docker and Kubernetes. Server and firewall upgrades accompanied that modernization. I also ran the SOC 1 and SOC 2 audits and worked with the CEO and CIO.

Office Evolution · 2014-2015

Systems / Software Engineer

Built centralized applications for CRM, provisioning, onboarding and service operations across locations.

Turned cross-department handoffs into shared workflows, supporting the architecture across client environments and working with the CEO and CIO.

Deep dive

Office Evolution needed operational work to connect across departments and locations. I built centralized applications joining CRM, provisioning, onboarding and service operations, turning the handoffs into explicit workflows.

The role included the surrounding architecture across locations and client environments and collaboration with the CEO and CIO. It developed the habit of working through what people need from a shared application before deciding how to implement it.

PlumChoice / Everon · 2012-2014

Network & Systems Engineer

Engineered and supported managed-service clients' networks and endpoints, communicating directly with owners and end users.

Built diagnostic and support tooling for recurring problems, used monitoring to guide troubleshooting and handled on-call issues.

Deep dive

At PlumChoice / Everon I engineered and supported client networks, systems and endpoints in a managed-services setting. I used monitoring and repeatable diagnostic tooling, built support tools around recurring needs and communicated directly with business owners and end users.

I also handled on-call issues and worked with antivirus services. Working directly with owners and end users kept the diagnosis connected to the problem they needed resolved.

IBM · 2010-2012

Infrastructure and Systems Focal

Supported shared enterprise infrastructure, coordinating changes and incidents with application, vendor and business teams.

Automated audit and backup workflows and managed virtualization test labs and hosted desktop platforms.

Deep dive

At IBM I served as an infrastructure and systems focal in shared enterprise environments, coordinating access, change, incidents and escalations across application, infrastructure, vendor and business stakeholders.

I automated audit and backup workflows and managed virtualization test labs and hosted desktop platforms. The value I carry into frontend work is understanding that a user-visible problem can have dependencies beyond the application team and needs coordinated ownership.

Sheet 04

Selected work

Client engineering contribution · Contribution completed

ProofMark

For a client document-signing product, I designed the workflow across identity, PDF fields, routing and audit history, using React/Next.js alongside APIs and PostgreSQL. My completed contribution joined the interface to verification and explicit fallback paths, experience I would bring to sensitive account flows.

Deep dive

ProofMark is client work, and my engineering contribution is completed. I designed the document-signing workflow spanning identity, document/PDF fields, routing, audit history and verification. Its documented capabilities also include encryption, webhooks and embedded signing.

I worked across React, Next.js, tRPC, Drizzle, PostgreSQL and Rust. I kept security-sensitive state and fallback paths explicit across the UI, APIs and data. Preparing a document, choosing its recipients and recording the signing outcome belong to one connected workflow; I designed those handoffs together.

My completed work was a contribution to the client product, bringing UI, APIs, document handling and verification into that signing workflow. The link opens the public product website.

ProofMark website ↗

Independent framework and UI toolkit · Early development

Kerf

Kerf is my early-development TypeScript/TSX framework: I am building its compiler, reusable UI toolkit and routing, authentication and data layer. The preview describes direct page updates and actionable diagnostics for coding agents. It is where I work on maintainable UI architecture, separately from my React work.

Deep dive

Kerf is my early-development agent-oriented TypeScript/TSX framework. I am building its own compiler, its UI toolkit, and a full-stack layer covering routing, authentication and data. The public preview explains compilation into direct page updates and shows component and state examples.

The architectural work centers on reusable UI contracts and diagnostics a coding agent can act on. These are concrete frontend design and developer-tooling concerns alongside my established React experience; Kerf is an independent framework, not the React runtime. The npm scaffold is available at https://www.npmjs.com/package/create-kerf.

The preview and scaffold are early releases. I am still developing the framework, using the compiler and reusable UI work to explore how application code can stay understandable to the engineers and coding agents working on it.

Kerf framework preview ↗

Long-term client application · 2019-2021

NuPrice

At NuPrice, a long-term client engagement, I built and operated the application connecting marketplace data and pricing rules to accounts, subscriptions, billing and analytics. Owning embedded support and technical operations kept customer-facing decisions connected to the services behind them, a useful perspective for investment-product integrations.

Deep dive

NuPrice connected external marketplace and competitor information to rules a customer could use to make pricing decisions. I built and operated the full application, including monitoring, analytics, accounts, subscriptions, billing, a CMS and embedded support.

That responsibility meant understanding the whole path from incoming data and pricing rules to the customer-facing result and support issue. Staying responsible for support kept the interface and its operating dependencies part of the same engineering job.

It was a long-term client engagement from 2019 to 2021 that began alongside my FRII employment. The product was acquired.

Sheet 05

Capabilities

  • React, TypeScript & JavaScript
  • HTML/CSS & reusable UI architecture
  • Node.js APIs & PostgreSQL
  • Authentication & integration workflows
  • Production troubleshooting & AWS