Edge Solutions Lab

ABOUT THE ROLE

We are looking for an experienced Cryptography Engineer to join our R&D team and work on security-critical open source system where cryptography is a core part of the product.

You will be working at the intersection of applied cryptography, software engineering, security and modern distributed systems — analysing cryptographic constructions, designing secure protocols, implementing cryptographic primitives and their optimization in the framework.

This role is suitable for both cryptography-first engineers with a strong mathematical background and engineering-first developers who have substantial experience with cryptographic systems and want to go deeper into applied cryptography.
 

WHAT YOU WILL DO

• Design, implement and review cryptographic protocols and security-critical components for the framework under creation.
• Implement and integrate cryptographic algorithms and primitives into production software and its releases.
• Work with symmetric and asymmetric cryptography, digital signatures, hashing and key-exchange mechanisms.
• Design and implement secure key management and key lifecycle processes.
• Analyse existing cryptographic implementations and identify potential weaknesses.
• Participate in security and cryptographic code reviews.
• Translate cryptographic research and academic papers into practical engineering solutions.
• Develop comprehensive unit, integration, negative and interoperability tests.
• Investigate vulnerabilities, implementation flaws and potential attack vectors.
• Keep up with developments in applied cryptography, cryptographic protocols and emerging security technologies.
   

WHAT WE EXPECT

Cryptography

• Strong understanding of modern cryptographic fundamentals:
  • symmetric encryption;
  • asymmetric encryption;
  • hash functions;
  • MAC / HMAC;
  • digital signatures;
  • key exchange;
  • public-key cryptography;
  • random number generation;
  • key derivation and key management.
• Practical understanding of algorithms and constructions such as:
  • AES;
  • ChaCha20 / Poly1305;
  • SHA-2 / SHA-3;
  • RSA;
  • ECC;
  • ECDSA / EdDSA;
  • Diffie–Hellman / ECDH;
  • HKDF;
  • AEAD.
• Understanding of common cryptographic protocols and how they are used in real systems.
• Ability to reason about cryptographic security assumptions and threat models.
• Understanding of common cryptographic implementation mistakes and attack vectors.
• Ability to read and understand cryptographic papers, specifications and technical documentation.
   

Software Engineering

• 4+ years of professional software engineering experience, with significant experience working with security-critical or low-level systems.
• Strong programming skills in at least one of:
  • Rust
  • C/C++
  • Go
  • Python
• Experience designing and implementing production-grade software.
• Strong understanding of algorithms, data structures and software architecture.
• Experience with unit testing, integration testing and code review.
• Understanding of networking and modern distributed systems.
• Good understanding of operating-system concepts and how applications interact with system resources.
• Experience working with APIs, protocols and serialization formats.
   

Security

• Understanding of threat modelling and security boundaries.
• Understanding of authentication, authorization and trust models.
• Familiarity with secure software development practices.
• Ability to distinguish between a cryptographic problem and a problem that should be solved by another security control.
• Experience analysing security vulnerabilities and their potential impact.
   

WOULD BE A PLUS

• Experience with Rust and/or cryptographic libraries.
• Experience developing cryptographic libraries or security-critical components.
• Experience with TLS, PKI, X.509, certificates and key management systems.
• Knowledge of modern protocols such as HPKE.
• Experience with zero-knowledge proofs, MPC, threshold cryptography or homomorphic encryption.
• Experience with blockchain cryptography and transaction privacy.
• Knowledge of secure distributed computing.
• Experience with hardware-backed security, HSM, TPM, Secure Enclave or similar technologies.
• Experience with side-channel attacks and constant-time programming.
• Contributions to open-source cryptographic or security projects.
• Academic or professional background in cryptography, information security, mathematics or computer science.
• Publications, conference talks or research experience in cryptography/security.
   

WHAT WE OFFER

• Work on technically challenging security-critical problems.
• Opportunity to work with modern applied cryptography rather than only standard application security.
• Direct involvement in real open source system development.
• Collaboration with experienced software engineers and network engineers.
• Flexible remote / hybrid work.
• Competitive compensation.
• Paid vacation and sick leave.

WHO WE ARE?

We are Edge Solutions Lab, a team of engineers with a strong background in product development of edge solutions and data platforms.

We have a long-term partnership with a customer in the US who is looking to expand their onsite team with talented engineers like you. This is an exciting opportunity to collaborate with industry leaders, work on impactful projects, and contribute to the development of next-generation electronic devices for healthcare, biotechnology, and research domains.
 

WHO WE ARE LOOKING FOR?

We are looking for a highly motivated PCB Engineer to join our team, working on single board computers, wearable devices, and wireless solutions for healthcare and life-science applications. In this role, as part of a team, you will design, prototype, and test electronic hardware, taking boards from concept and schematic to production-ready manufacturing data, and working closely with hardware engineers, firmware developers, and mechanical designers.

This is a dynamic environment where priorities can shift quickly, so we value someone who adapts easily and stays effective when project focus changes.
 

IN THIS ROLE YOU WILL:

• Perform PCB design work in Altium Designer, from schematic development to layout and release of manufacturing data.
• Design, debug, optimize, diagnose, and modify digital and analog electronic circuits.
• Develop and test single board computers, wearable devices, and wireless solutions.
• Route high-speed interfaces (such as PCIe, USB, DDR) and ensure designs are ready for mass production (DFM/DFT).
• Ensure NDAA compliance when selecting components and manufacturing partners.
• Prepare manufacturing packages (Gerber, drill files, BOM, assembly drawings, fabrication notes) and order PCBs and PCBAs from contract manufacturers.
• Experiment and prototype new ideas for evaluation.
• Test and debug boards using measurement equipment (oscilloscope, logic analyzer).
• Write engineering documentation, including drawings and procedures, test plans, and reports, and recommend design improvements.
• Participate in design meetings and contribute to the product.
• Collaborate with hardware and mechanical engineers on schematic reviews, board outline, connector placement, and enclosure integration.
• Switch between projects and tasks as priorities change, adjusting your focus quickly without losing quality.
   

WHAT YOU BRING ALONG:

• At least 4 or more years of experience in PCB design.
• Confidence in use of Altium Designer.
• Experience in routing high-speed interfaces (such as PCIe, USB, DDR).
• Practical experience in development for mass production (DFM/DFT).
• Familiarity with industry design rules and standards.
• Good analog and digital electronic engineering fundamentals.
• Knowledge of SoC-based solutions and their architecture (buses, clock, ports, etc.).
• Experience in schematic development, including the ability to read schematics, datasheets, and mechanical drawings, and to make minimal schematic changes when needed.
• Good knowledge of communication interfaces (PCIe, USB, I2C, UART, SPI).
• Experience with measurement equipment (oscilloscope, logic analyzer).
• Experience in ordering PCBs and PCBAs from contract manufacturers.
• Flexibility in your approach to projects and the ability to quickly switch focus between tasks, products, and priorities as project needs change.
• Intermediate+ written and spoken technical English.
• Ability to work in a multinational distributed team.
   

WILL BE A PLUS:

• Knowledge of PCB design standards (IPC-2221, IPC-2222, IPC-7351, IPC-A-610).
• Experience in design of battery-powered devices.
• Experience in use of soldering equipment (BGA components are a plus).
• Experience in design of medical devices.
• Experience in components purchasing for prototyping and for production.
• Basic experience in embedded software development.
• Knowledge of mechanical design software tools.
• Flexibility to work across multiple disciplines.