Software engineer

MartinSidorov

Behind every interface,
there’s a system worth building.

I build backend services with Go, microservices, and AWS. Reliable systems, thoughtful APIs, and code that holds up beyond the happy path.

Explore my projects View CV

Let’s talk

main.go

1package main2 3import (4    "encoding/json"5    "log"6    "net/http"7)8 9func main() {10    http.HandleFunc("/api/hello",11        func(w http.ResponseWriter, r *http.Request) {12            w.Header().Set("Content-Type", "application/json")13            _ = json.NewEncoder(w).Encode(map[string]string{14                "name":  "Martin Sidorov",15                "role":  "Backend Engineer",16                "stack": "Go / gRPC / AWS",17            })18        })19    log.Fatal(http.ListenAndServe(":8080", nil))20}

curl localhost:8080/api/helloView response

Example response · 200 OK

{
  "name": "Martin Sidorov",
  "role": "Backend Engineer",
  "stack": "Go / gRPC / AWS"
}

Go · HTTP · JSONUTF-8

My everyday stackGogRPCPostgreSQLAWSRedis

Get to know me

About me

Engineering the
things you don’t see.

Martin Sidorov standing on a coastal street — Martin SidorovSoftware engineer

I’m a software engineer with a focus on backend development: microservices architecture, Go, RPC communication, and cloud services. I develop and maintain scalable applications, working with AWS to connect services and keep data moving.

My frontend experience comes from both professional work and personal projects. With HTML, CSS, JavaScript, and Elm, I’ve built websites and interfaces that complement the systems behind them.

I enjoy taking a problem from investigation through implementation, testing, and code review. Collaborating with QA and other developers, writing maintainable code, and learning along the way are central to how I work.

My journey into programming

Since 2020: Professional experience
10: Personal projects & collections
9: Certificates & badges

My resume

Professional experience

April 2022 — Present Tallinn, Harju County

Wallester AS

Software Engineer

Delivered stablecoin top-up functionality, fixed invoice issues, and ensured reliable transaction flow.
Engineered a new microservice for SEPA OUT transfers using Go and third-party REST API integration to enable payout confirmation.
Improved fraud monitoring by fixing queue issues and refining Excel reporting. Refactored object state transition workflows with AWS SNS and SQS messaging to enable sequential freezing and unfreezing across services.

More achievements

Built and improved features across platforms, including pricing plans, mobile two-factor login with SSE and Redis, ReCAPTCHA, push notifications, and CRM endpoints.
Enhanced system reliability with Prometheus and Grafana metrics and proper service shutdown handling.
Supported team collaboration through code reviews, technical specifications, task grooming, and mentoring teammates during onboarding.
Assisted QA and cross-team colleagues with debugging, feature testing, and clarifying product flows.

June 2023 — December 2024 Tallinn, Harju County

LookinLabs

Co-Founder, Backend Developer

Established project-based learning programs for junior and mid-level developers, providing hands-on experience and skill development aligned with industry standards.
Mentored interns and junior developers in GitHub, pull request reviews, and code conventions, demonstrating development workflows through direct onboarding support.
Designed and developed backend architecture with Go, Redis, and REST APIs, integrating with existing frontend applications and supporting seamless development projects.

More achievements

Coordinated resource allocation and sprint scheduling by defining project scope, aligning deliverables with learning objectives, and adjusting milestones to keep software development initiatives on schedule.

July 2020 — April 2022 Tallinn, Harju County

Wallester AS

Junior Software Engineer

Improved microservices through linter analysis, security fixes, and presenting best practices to the team.
Wrote automated tests and contributed to bug fixes and new features across card, CRM, and client portal platforms, including APIs, UI, and translations.
Managed SMS and email delivery with AWS SQS, increasing reliability and efficiency.

More achievements

Assisted with Visa token integration and code reviews to support team collaboration and code quality.

January 2020 — June 2020 Tallinn, Harju County

Tallink Grupp AS

Intern Junior Developer

Developed and maintained user-facing features for mobile.tallink.com using Elm, meeting project specifications and interface requirements.
Developed Elm unit test suites to verify application stability and reliability.
Used JIRA to monitor project tasks and coordinated with teammates throughout Agile development cycles to keep work progressing efficiently.

View CV

Skills