A Software Engineer at Syntes plays a critical role in designing, developing, and maintaining high-integrity software systems that power our next-generation healthcare and medical technology solutions. Working at the intersection of advanced software engineering and life-changing technology, engineers in this role build scalable architectures, modern cloud infrastructure, and robust systems integrations. The work you do directly impacts patient outcomes, clinical workflows, and the overall safety and efficiency of medical technologies globally. In this position, you will tackle complex technical challenges ranging from low-level systems programming to highly scalable cloud-native microservices. Because Syntes software often operates in highly regulated environments, including Class II medical device software, our engineering culture places an incredibly high premium on quality, reliability, and rigorous testing. You will collaborate closely with cross-functional teams—including Research & Development (R&D), Quality Assurance, and Product Management—to ensure our software is not only innovative but also exceptionally stable and secure. This role is ideal for engineers who want their code to have a profound, real-world impact. You will have the opportunity to work with modern tech stacks, including Java/Spring Boot, C++, AWS, and Kubernetes, while adhering to the highest standards of software craftsmanship.
Digital Screening
reportedAsynchronous screening on HireVue where you record video responses to behavioral and introductory questions.
What to demonstrate
- Asynchronous screening on HireVue where you record video responses to behavioral and introductory questions
- Depth in Behavioral Interviewing
How to prepare
- Answer aloud and timed: Why do you want to work at Syntes, and how does your background support this role?
- Answer aloud and timed: Describe a stressful situation you faced in a past project and how you managed it.
Recruiter Call
reportedConversational screening with a recruiter to discuss your background, expectations, and interest in Syntes.
What to demonstrate
- Conversational screening with a recruiter to discuss your background, expectations, and interest in Syntes
- Depth in Behavioral Interviewing
How to prepare
- Be able to walk your CV end to end in two minutes, and say why this company specifically.
- Have your salary expectations, notice period and location constraints ready, and ask for the rest of the loop in writing.
Technical Conversations
reportedDiscussions with hiring managers and team engineers, including live coding and system design.
What to demonstrate
- Discussions with hiring managers and team engineers
- Including live coding and system design
How to prepare
- Answer aloud and timed: How do you handle constructive criticism or conflicting technical opinions from your peers?
- Answer aloud and timed: Explain the difference between a process and a thread, and discuss when you would use multi-threading versus multitasking.
Panel Interview
reportedComprehensive panel interview featuring a presentation of a previous project followed by structured technical and behavioral sessions.
What to demonstrate
- Comprehensive panel interview featuring a presentation of a previous project followed by structured technical and behavioral sessions
- Depth in Behavioral Interviewing
How to prepare
- Answer aloud and timed: How do you implement and manage transactions in a microservices architecture?
- Answer aloud and timed: Walk me through how you would optimize a Java application experiencing memory leaks or performance bottlenecks in production.
3 candidate reports. Individual accounts describe a particular role and hiring cycle.
Syntes Software Engineer interview: two virtual discussions with hiring decision-makers
Both interviews were virtual and felt closely connected to the hiring decision. In the first video call, I spoke with the person directly involved in deciding who to hire. The second brought in additional team members for more of a panel discussion. We mainly talked about my background. In the second round, it felt like several people were considering my answers from different perspectives at onc…
Read full experienceSyntes Software Engineer interview: friendly start, no follow-through
The first thing that stood out was the lack of clarity once I finally had a chance to interview. Recruiters were direct when they reached out, but they gave little information about the process length and I received no updates afterward. In a separate attempt, I was contacted after applying for an assessment path. There was a quick phone call about my background and fit, with the hiring manager c…
Read full experienceSyntes Software Engineer interview: relaxed half-day panel session
Recruiter outreach came first, and they connected me with the team. The atmosphere was easygoing, and everyone felt friendlier than the people I had met at other European pharma companies. The process moved quickly into two rounds: a short call with the hiring manager, then, about a week later, a half-day in-person session. That session consisted of several panel-style conversations. Most intervi…
Read full experiencePracHub editorial advice for the preparation topics above.
Going into the loop without having done this.
To give yourself the competitive edge during your Syntes interview, keep these practical, insider tips in mind:
Going into the loop without having done this.
Master the HireVue Screen: Treat the asynchronous video interview with the same professionalism as a live conversation. Ensure your lighting and audio are clear, utilize the practice attempts to get comfortable with the platform, and keep your answers structured and concise (aim for under 3 minutes per question).
Going into the loop without having done this.
Emphasize the 'How' Over the 'What': When answering technical or system-related questions, explain your thought process clearly. Our engineers value a candidate who can talk through trade-offs, discuss edge cases, and explain how they arrived at a solution, even if they don't have the perfect syntax memorized on the spot.
Going into the loop without having done this.
Showcase Your Passion for Healthcare Tech: Syntes is dedicated to improving lives through technology. Expressing genuine enthusiasm for the mission and showing an eagerness to learn about our specific domain will resonate strongly with your interviewers.
Choose a category, try a prompt, then open its approach, worked solution or follow-up when you need it.
Explain the difference between a process and a thread, and discuss when you would use multi-threading versus m
Explain the difference between a process and a thread, and discuss when you would use multi-threading versus multitasking.
Approach
- Say what the runtime actually does before reasoning about the code.
- Name what is shared across threads and what owns each piece of state.
- Identify the window where an invariant is briefly untrue.
- Distinguish a value from a reference to it, and say which one you handed out.
Follow-up
- What happens if two callers reach this at the same time?
- Where could this allocate more than you expect?
Explain the concept of immutability in languages like Java or C++, and why it is beneficial.
Explain the concept of immutability in languages like Java or C++, and why it is beneficial.
Approach
- Say what the runtime actually does before reasoning about the code.
- Name what is shared across threads and what owns each piece of state.
- Identify the window where an invariant is briefly untrue.
- Distinguish a value from a reference to it, and say which one you handed out.
Follow-up
- What happens if two callers reach this at the same time?
- Where could this allocate more than you expect?
Track a rolling failure rate per destination for circuit decisions
The egress service delivers about 1,500 webhooks per second across roughly 40,000 destinations, each call bounded by a 10 second timeout. Maintain, per destination, the failure rate over the trailing 60 seconds so a caller can ask before dispatch whether the circuit should open. Attempts arrive as (destination_id, finished_at_ms, outcome). Requirement: amortised O(1) per attempt, with total memory bounded by the destination count rather than by traffic. Give the structure, its exact memory, and the rule that stops a destination with three attempts from opening a circuit.
Approach
- Name the exact-deque version and then reject it as the default. Holding timestamps and advancing a tail pointer past anything older than now minus 60 seconds is a correct two-pointer window at amortised O(1) per attempt, but its memory tracks in-window traffic, so one destination in a retry storm holds hundreds of thousands of entries while thousands of quiet destinations hold none.
- Use a ring of 60 one-second buckets per destination, each bucket a pair of counters for attempts and failures. On an attempt, advance the ring by the elapsed whole seconds, zeroing at most min(elapsed, 60) buckets, then increment the head. That is amortised O(1) with a fixed footprint per destination.
- State the footprint: 60 buckets times two 4-byte counters is 480 bytes of payload per destination, so 40,000 destinations is roughly 20 to 25 MB with per-entry overhead, bounded by the catalogue rather than by the rate. The cost is granularity, since the oldest bucket ages out in whole seconds, which is far tighter than the decision needs.
- Require a minimum sample before the circuit may open. A destination with three attempts and three failures reads as 100 percent and is not evidence; a floor of roughly 20 attempts in the window makes the ratio meaningful, and below that floor use a run of consecutive failures as the trigger instead.
Follow-up
- The fleet is 30 instances and each sees roughly a thirtieth of a destination's traffic. Where does the rate actually live, and what does a per-instance answer get wrong?
- A destination answers in 9.5 seconds and succeeds. It is not failing but it is consuming your per-destination concurrency. What signal should open the circuit here?
Write the update path that detects a concurrent edit
resource carries version INT NOT NULL DEFAULT 1. resource_revision holds revision_id, resource_id, version, actor_user_id, change_kind, patch JSONB, request_id, created_at with UNIQUE (resource_id, version). outbox_event holds aggregate_type, aggregate_id, aggregate_version, event_type, payload, status. A PUT carries the version the client read. Write the exact statements for the single transaction that applies the edit, records the revision and enqueues 'resource.updated', and give the handler's branch on zero affected rows. Then say what PostgreSQL 16 does under READ COMMITTED when two of these updates hit one row at once.
Approach
- One transaction, three writes, no network call inside it: UPDATE resource SET title = $3, version = version + 1, updated_at = now() WHERE resource_id = $1 AND tenant_id = $4 AND version = $2; then INSERT the resource_revision row at version $2 + 1; then INSERT the outbox_event row at the same aggregate_version. The event goes to a table rather than a broker because no transaction spans both.
- Branch on the affected-row count before doing anything else. Zero has three causes — stale version, wrong tenant, row gone — so re-read once and map to 409 carrying the current version, or 404 for an id outside the caller's tenant, which also stops the endpoint confirming that another tenant's id exists.
- State the engine behaviour instead of assuming it. Under READ COMMITTED the second UPDATE blocks on the row lock, and when the first commits PostgreSQL re-evaluates the WHERE clause against the newly committed row, so the version predicate now fails and the statement reports zero rows. Under REPEATABLE READ the identical collision raises SQLSTATE 40001 instead, so the handler must fold both shapes into one conflict response.
- Keep UNIQUE (resource_id, version) even though the predicate already serialises writers. It is what makes a lost update unwritable if any other path ever reaches the revision table, and it converts a logic bug into 23505 rather than into a silently missing history row.
Follow-up
- A client sends the version it read ten minutes ago and the resource has moved three versions. What is in your 409 so it can resolve the conflict without a full re-fetch?
- Two editors, two disjoint fields, no overlap. Does your answer still refuse the second write, and should it?
Hold a per-tenant active cap against concurrent creates
A tenant on the standard plan may hold at most 50 resources with status='active'. The create handler runs SELECT count(*) FROM resource WHERE tenant_id = $1 AND status = 'active', compares to 50, then inserts. Two creates arrive 3 ms apart on different instances and the tenant lands at 51. Name the anomaly, say whether PostgreSQL 16 READ COMMITTED or REPEATABLE READ prevents it and why, then give an implementation that holds the cap at READ COMMITTED with the exact statements. Finally, say what changes when the cap is 'at most one running export per tenant' on job_run.
Approach
- Name it: write skew. The two transactions read an overlapping set and write disjoint rows, so there is no row-level conflict for the engine to detect and each commit is individually legal.
- Rule out the levels precisely. READ COMMITTED takes a fresh snapshot per statement and takes no lock on the counted rows, so both see 49. PostgreSQL's REPEATABLE READ is snapshot isolation: it removes non-repeatable reads and phantoms within the snapshot but still admits write skew, because the anomaly is not a re-read of a changed row, it is a read of a set that a concurrent transaction invalidates. Only SERIALIZABLE closes it, by tracking the read dependency and aborting one transaction with SQLSTATE 40001 — a guarantee that exists only if the application re-runs the whole transaction from the read.
- Convert the set predicate into a single-row conflict: keep tenant.active_resource_count and run UPDATE tenant SET active_resource_count = active_resource_count + 1 WHERE tenant_id = $1 AND active_resource_count < 50 in the same transaction as the INSERT. Zero affected rows is the cap, returned as 409. The row lock serialises the decision at any isolation level, and contention is bounded to one tenant's row — which is also the fair-scheduling unit, unlike a global counter that would convoy every tenant behind one row.
- State the cost you just took on: a counter is a second source of truth that can drift, so every path that changes status must adjust it inside the same transaction, and a periodic reconciliation has to exist, with resource_revision as the authority for what the count should have been.
Follow-up
- A resource moves from archived back to active. Which statements change, and what breaks if the counter update and the status change land in different transactions?
- The cap becomes plan-dependent and a plan can change mid-month. Where does the number 50 live, and who reads it?
How do you implement and manage transactions in a microservices architecture?
How do you implement and manage transactions in a microservices architecture?
Approach
- Fix the scope first: who calls this, how often, and what they do when it fails.
- Name the read and write paths separately; they rarely have the same bottleneck.
- Choose a partition key and say what query it makes expensive.
- State the consistency you need, and where you are willing to be stale.
Follow-up
- What breaks first when traffic grows ten times?
- How does this behave when that dependency is down for an hour?
Walk us through your approach to testing software. How do you ensure high test coverage for mission-critical a
Walk us through your approach to testing software. How do you ensure high test coverage for mission-critical applications?
Approach
- Say who the caller is and what they do when the call fails halfway.
- Define the identity of a request so a retry cannot double-apply it.
- Separate accepted, pending, failed and confirmed; they are different facts.
- Design the error taxonomy before the success shape; callers branch on it.
Follow-up
- What happens if the caller retries after a timeout?
- How does a client discover it is on an old version of this contract?
How do you go about identifying, tracking, and resolving a critical bug in a production environment using tool
How do you go about identifying, tracking, and resolving a critical bug in a production environment using tools like Jira?
Approach
- Say who the caller is and what they do when the call fails halfway.
- Define the identity of a request so a retry cannot double-apply it.
- Separate accepted, pending, failed and confirmed; they are different facts.
- Design the error taxonomy before the success shape; callers branch on it.
Follow-up
- What happens if the caller retries after a timeout?
- How does a client discover it is on an old version of this contract?
How do you design software to comply with strict regulatory standards without sacrificing development velocity
How do you design software to comply with strict regulatory standards without sacrificing development velocity?
Approach
- Say who the caller is and what they do when the call fails halfway.
- Define the identity of a request so a retry cannot double-apply it.
- Separate accepted, pending, failed and confirmed; they are different facts.
- Design the error taxonomy before the success shape; callers branch on it.
Follow-up
- What happens if the caller retries after a timeout?
- How does a client discover it is on an old version of this contract?
Walk me through how you would optimize a Java application experiencing memory leaks or performance bottlenecks
Walk me through how you would optimize a Java application experiencing memory leaks or performance bottlenecks in production.
Approach
- Establish what changed and when, before forming any theory.
- Pick a bisection that eliminates candidates whichever way it turns out.
- Check the instrumentation before believing the symptom.
- Separate the trigger from the cause; the deploy is rarely the bug.
Follow-up
- What would you look at first, and what would it rule out?
- How would you tell a cause from a coincidence here?
Built from the rounds and topics Syntes candidates report.
Prepare, practise & reflect
One practical outcome each day. Spend longer where you need it.
0 / 7 done01Map the Syntes loop
- Write out the reported sequence: Digital Screening, Recruiter Call, Technical Conversations, Panel Interview.
- For each round, write one sentence on what it is judging, from the description above, and mark the one you are least ready for.
Deliverable: A one-page map of the 4 reported rounds, with the weakest marked.
02Work Behavioral Interviewing
- Spend the session on Behavioral Interviewing, which Syntes candidates report being tested on.
- Write one worked example in Behavioral Interviewing and time yourself on it.
Deliverable: One timed worked example in Behavioral Interviewing.
03Work Communication Skills (Technical Communication)
- Spend the session on Communication Skills (Technical Communication), which Syntes candidates report being tested on.
- Write one worked example in Communication Skills (Technical Communication) and time yourself on it.
Deliverable: One timed worked example in Communication Skills (Technical Communication).
04Work System Design
- Spend the session on System Design, which Syntes candidates report being tested on.
- Write one worked example in System Design and time yourself on it.
Deliverable: One timed worked example in System Design.
05Answer out loud: Behavioral & Value Alignment
- Answer aloud, timed: Why do you want to work at Syntes, and how does your background support this role?
- Answer aloud, timed: Describe a stressful situation you faced in a past project and how you managed it.
Deliverable: Spoken answers to 2 reported Behavioral & Value Alignment question(s), under time.
06Answer out loud: Technical & System Fundamentals
- Answer aloud, timed: Explain the difference between a process and a thread, and discuss when you would use multi-threading versus multitasking.
- Answer aloud, timed: How do you implement and manage transactions in a microservices architecture?
Deliverable: Spoken answers to 2 reported Technical & System Fundamentals question(s), under time.
07Answer out loud: Testing, Quality & Systems Integration
- Answer aloud, timed: Walk us through your approach to testing software. How do you ensure high test coverage for mission-critical applications?
- Answer aloud, timed: How do you go about identifying, tracking, and resolving a critical bug in a production environment using tools like Jira?
Deliverable: Spoken answers to 2 reported Testing, Quality & Systems Integration question(s), under time.
Expand any day for tasks and deliverables. Your progress is saved on this device.
Behavioural rounds judge the decision you made and what it cost.
Why do you want to work at Syntes, and how does your background support this role?
Why do you want to work at Syntes, and how does your background support this role?
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
Describe a stressful situation you faced in a past project and how you managed it.
Describe a stressful situation you faced in a past project and how you managed it.
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
Tell me about a time when you had to make a difficult decision involving professional ethics.
Tell me about a time when you had to make a difficult decision involving professional ethics.
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
Describe a moment where you demonstrated strong teamwork to solve a complex issue under a tight deadline.
Describe a moment where you demonstrated strong teamwork to solve a complex issue under a tight deadline.
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
How do you handle constructive criticism or conflicting technical opinions from your peers?
How do you handle constructive criticism or conflicting technical opinions from your peers?
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
What is your experience with Linux systems and writing automation scripts in PowerShell?
What is your experience with Linux systems and writing automation scripts in PowerShell?
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
Describe your experience with systems integration and handling data privacy in cloud-hosted environments.
Describe your experience with systems integration and handling data privacy in cloud-hosted environments.
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
- 01
Why do you want to work at Syntes, and how does your background support this role?
- 02
Describe a stressful situation you faced in a past project and how you managed it.
- 03
Tell me about a time when you had to make a difficult decision involving professional ethics.
- 04
Describe a moment where you demonstrated strong teamwork to solve a complex issue under a tight deadline.
How technical is the Syntes interview process?
The process is highly comprehensive but balanced. While you will face rigorous technical questions regarding system design, coding, and operating systems, there is an equally strong focus on your testing methodologies, problem-solving processes, and alignment with the Syntes Credo.
Syntes Software Engineer candidate reports ↗What is the best way to prepare for the behavioral rounds?
You should prepare multiple professional stories using the STAR (Situation, Task, Action, Result) format. Focus on experiences that highlight your teamwork, ethical decision-making, and commitment to quality. Be sure to familiarize yourself with the core values of the Syntes Credo, as interviewers frequently ask questions designed to test how you embody these principles.
Syntes Software Engineer candidate reports ↗What should I focus on for the project presentation round?
Choose a project where you had significant ownership and that showcases your ability to solve complex problems. Focus on structuring your presentation clearly: start with the business problem, move to the technical architecture and your specific contributions, and conclude with the outcomes and lessons learned. Be prepared for deep-dive questions from the panel on your technical choices.
Syntes Software Engineer candidate reports ↗How long does the entire interview process take?
The typical timeline from the initial application to a final decision ranges from 4 to 8 weeks. This timeline can vary depending on the specific team, location, and the availability of panel interviewers. Do not rush your preparation for the presentation round. Candidates who fail to clearly articulate their architectural decisions or who gloss over the challenges they faced during their projects rarely progress past the panel stage.
Syntes Software Engineer candidate reports ↗How hard is the Syntes interview?
Candidates most commonly rate Syntes interviews as medium, based on 531 reported interviews. About 40% of candidates who interview go on to receive an offer.
Syntes Software Engineer candidate reports ↗What topics does Syntes test in interviews?
Syntes interviews most often cover Behavioral Interviewing, Problem Solving, Data Structures & Algorithms (DSA), Presentation Skills, and Panel Interviewing. The exact emphasis depends on the specific role you apply for.
Syntes Software Engineer candidate reports ↗Where is Syntes headquartered?
Syntes is headquartered in New Brunswick, US.
Syntes Software Engineer candidate reports ↗Sources & methodology 3 sources ↗
Official role evidence, timestamped platform data and clearly labeled preparation advice.
- 01Syntes Software Engineer candidate reports ↗
Company-reported rounds, questions and FAQ.
candidate · Accessed 2026-09-22 - 02PracHub Software Engineer practice ↗
PracHub practice material, not company-reported.
platform · Accessed 2026-09-22 - 03PracHub preparation framework ↗
PracHub preparation guidance.
platform · Accessed 2026-09-22
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